457-465 SUSSEX DRIVE, OTTAWA
FAÇADES AND ROOFS RESTORATION
SPECIFICATIONS 100% SUBMISSION September 26, 2013
NNC Project no 106419 DFS Project no 4713-510
DFS Inc. Architecture & Design Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 00 01 10 Façades and Roofs Restoration TABLE OF CONTENTS National Capital Commission Page 1
Section No. Title Pages
DIVISION 00 PROCUREMENT AND CONTRACTING REQUIREMENTS
00 01 10 Table of Contents 2 00 01 15 List of Drawings 2
DIVISION 01 GENERAL REQUIREMENTS
01 00 00 General Requirements 8 01 25 00 Substitution Procedures 2 01 33 00 Submittal Procedures 3 01 35 29 Health and Safety Procedures 4 01 35 43 Environmental Procedures 3 01 45 00 Quality Control 2 01 52 00 Construction Facilities 2 01 54 23 Temporary Scaffolding 4 01 61 00 Common Product Requirements 3 01 73 00 Execution 3 01 74 11 Cleaning 2 01 74 21 Construction/Demolition Waste Management and Disposal 6 01 77 00 Closeout Procedures 1 01 78 00 Closeout Submittals 3
DIVISION 02 EXISTING CONDITIONS
02 26 00 Hazardous Material Assessment [to be provided by NCC upon request] 02 41 19 Selective Demolition 3 02 83 19 Lead-Based Paint Remediation [to be provided by NCC upon request]
DIVISION 04 MASONRY
04 03 06 Heritage – Cleaning of Historic Masonry 11 04 03 07 Heritage - Masonry Repointing and Repair 7 04 03 08 Heritage – Mortaring 8 04 03 41 Heritage –Repair of Stone 11 04 03 42 Heritage – Replacement of Stone 5 04 03 43 Heritage – Dismantling stone masonry 4 04 05 00 Common Work Results for Masonry 8 04 05 19 Masonry Reinforcement and Connectors 2 04 21 13 Brick Masonry 2
DIVISION 05 METALS
05 01 70 Decorative Metal Restoration 3
DIVISION 06 WOOD, PLASTICS, AND COMPOSITES
06 03 20 Wood Repair 6 06 20 00 Finish Carpentry 3
DIVISION 07 THERMAL AND MOISTURE PROTECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 00 01 10 Façades and Roofs Restoration TABLE OF CONTENTS National Capital Commission Page 2
07 21 13 Board Insulation 4 07 31 13 Asphalt Shingles 3 07 61 00 Sheet Metal Roofing 7 07 62 00 Sheet Metal Flashing and Trim 4 07 92 00 Joint Sealants 6
DIVISION 09 FINISHES
09 24 33 Portland Cement Parging 4 09 91 10 Painting 6
END OF DOCUMENT
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 00 01 15 Façades and Roofs Restoration LIST OF DRAWINGS National Capital Commission Page 1
Drawing No. Drawing Title
ARCHITECTURAL:
A000 TITLE PAGE PAGE TITRE A001 SITE PLAN AND GENERAL NOTES PLAN D’IMPLANTATION ET REMARQUES GENERALES A002 REPAIRS LEGEND LÉGENDE DES RÉPARATIONS
A100 457-465 SUSSEX DRIVE - WEST ELEVATION 457-465 SUSSEX DRIVE - ÉLÉVATION OUEST A101 457-465 SUSSEX DRIVE - EAST ELEVATION 457-465 SUSSEX DRIVE - ÉLÉVATION EST A102 457-459 SUSSEX DRIVE - NORTH ELEVATION 457-459 SUSSEX DRIVE - ÉLÉVATION NORD
A200 463-465 SUSSEX DRIVE - SOUTH ELEVATION 463-465 SUSSEX DRIVE - ÉLÉVATION SUD A201 463-465 SUSSEX DRIVE - NORTH ELEVATION 463-465 SUSSEX DRIVE - ÉLÉVATION NORD A202 463-465 SUSSEX DRIVE - EAST ELEVATION 463-465 SUSSEX DRIVE - ÉLÉVATION EST
A300 457-459 SUSSEX DRIVE - ROOF PLAN 457-459 SUSSEX DRIVE - PLAN DE TOITURE A301 463-465 SUSSEX DRIVE - ROOF PLAN 463-465 SUSSEX DRIVE - PLAN DE TOITURE
A400 MASONRY TYPICAL DETAILS DÉTAILS TYPIQUES DE MAÇONNERIE A401 MASONRY TYPICAL DETAILS DÉTAILS TYPIQUES DE MAÇONNERIE A402 MASONRY TYPICAL DETAILS DÉTAILS TYPIQUES DE MAÇONNERIE A403 MASONRY TYPICAL DETAILS DÉTAILS TYPIQUES DE MAÇONNERIE
A500 457-459 SUSSEX DRIVE - TYPICAL ROOF DETAILS 457-459 SUSSEX DRIVE - DÉTAILS TYPIQUES DES TOITURES
END OF DOCUMENT
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 00 00 Façades and Roofs Restoration GENERAL INSTRUCTIONS National Capital Commission Page 1
1 SUMMARY
1.1 Summary of Work
.1 Description of Work: .1 Work under this contract/package: Façades and Roofs Rehabilitations of 445-465 Sussex Drive (Clarence Street to Murray Street) for the façades not facing Sussex Drive of NCC- owned building, but is not limited to:
.1 Selective masonry cleaning N.2 C C -owSelneecdti vbeu ilmdaingsons rayl onrepog Sinutssinge,x s Dto rivnee r (eSpat-Girs eo arngde rteop Slatc-Pematrenict.k ) includes but is not lim i.t3e d toD: ecorative metal restoration. .4 Selective repairs to wood windows, doors and frames. .5 Exterior recaulking. .6 Exterior repainting. .7 Foundations damp-profing and repairs. .8 Roof rehabilitation and replacement.
.2 Works covered by Contract Documents: .1 Work included in this package: Refer to architectural drawings. .2 Work included in this package will be administered by the N CC appointed General Contractor.
.3 Project-related Conditions: .1 All buildings shall remain occupied and operational during the entire construction period. The public shall have access to the various commercial premises and the residents to their dwellings at all times. The General Contractorto m ain sha ll be responsible to maintain access and egress from all entrances 24/7. This might require the construction of temporary bridges or sidewalks, which meet the health and safety as well as the national building code requirements. Alternative routes may be provided in certain cases to the rear courtyards or side streets, but this cannot be assumed for contract purposes until suitable arrangements can be resolved on a case by case basis.
.4 Interpretations .1 The Contract Documents are complementary and what is required by any one shall be as binding as if required by all. .2 Words and abbreviations that have well known technical or trade meanings are used in the Contract Documents in accordance with such recognized meanings. .3 All terminology used within these documents identifying "Engineer", "Architect", "Consultant", "NCC Engineer", "Departmental Representative" etc. shall be replaced by "NCC Representative" as defined in the General Conditions.
.5 Priority of Contract Documents .1 The priority of documents, from highest to lowest, is: .1 Division 01 of the Specifications, .2 Divisions 02 through 33 of the Specifications (including specifications on the drawings), and .3 the drawings. .2 Later dated documents govern over earlier documents of the same type. .3 Architectural documents govern over structural documents with respect to the location of structural components. .4 Architectural and landscape documents govern over mechanical and electrical documents with respect to fixture quantities and locations. .5 Resolve conflict or discrepancy between the two language versions of the Contract Documents as directed by N CC Representative.
.6 Site Examination .1 The NC C will conduct a non-mandatory job showing of the work to be contracted. Claim s for additional compensation will not be entertained for any item s of labor or material required to
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 00 00 Façades and Roofs Restoration GENERAL INSTRUCTIONS National Capital Commission Page 2
complete the work that could have been reasonably ascertained by the Site Examination.
.7 Addenda .1 Answers to questions directed to the NC C Representative and all amendments to the drawings or specifications during the tender period shall be issued in the form of Addenda to all. Addenda form part of the Contract Documents.
.8 Reasonably foreseeable hidden conditions and interference .1 Obtain directions from NCC Representative before proceeding with work if a substrate or subsurface condition or interference may be reasonably anticipated while not fully described in the Contract Documents. .2 Redo work if directed by NCC Representative when such condition or interference is encountered without seeking prior direction from NCC Representative. Assume the costs of work required for this reason.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 00 00 Façades and Roofs Restoration GENERAL INSTRUCTIONS National Capital Commission Page 3
2 QUALITY R EQUIREMENTS
2.1 Regulatory Requirements
.1 Fees, perm its, inspections, certificates and by-laws: .1 Submit copies of all receipts, perm its, inspection reports and certificates issued by authorities having jurisdiction to NC C Representative.
.2 Building Perm it: .1 Contractor shall provide building perm it. Also provide all other applicable permits at own expense.
2.2 Qualifications .1 Masonry Work: Contractor shall provide prior to contract award all required qualification documents, as per Section 04 03 07 - Masonry Reinstallation and Repointing.
2.3 References .1 Associations/organizations .1 C SA : Canadian Standards Association .2 FC C : Fire Com missioner of Canada .3 H R SD C : Human Resources and Skills D evelopment Canada .4 N CC : The National Capital Com mission .5 N R C : National Research Council of Canada .6 U LC : Underwriters Laboratories of Canada
.2 Standards .1 U LC -S115: U LC , U LC -S115 (Standard Method of Fire Tests of Firestop Systems) .2 N BC : N R C , National Building Code (2005) .3 N BC Part 8: N R C , National Building Code (2005), Part 8 (Construction Safety Measures) .4 W H M IS: H R SD C , Work place Hazardous Materials Information System .5 FC 301: FC C , FC 301 (Standard for Construction Operations) .6 FC 302: FC C , FC 302 (Welding and Cutting Operations)
2.4 Quality Control .1 Refer to Section 01 45 00 - Quality Control.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 00 00 Façades and Roofs Restoration GENERAL INSTRUCTIONS National Capital Commission Page 4
3 PRIC E AND PAY M ENT PRO C EDU R ES
3.1 C ash Allowances .1 Include in Contract Price specified cash allowance of $ 10,000 for dam aged door hardware replacement
.2 The cash allowance covers the net cost to the Contractor of services, products, construction machinery and equipment, freight, handling, unloading, storage, installation and other authorized expenses incurred in performing the Work.
.3 The Contract Price, and not the cash allowance, includes the Contractor's overhead and profit in connection with such cash allowance.
.4 The Contract Price will be adjusted by written order to provide for excess or deficit to each cash allowance.
3.2 Alternatives and Substitution Procedures .1 Refer to Section 01 25 00 "Substitution Procedures".
3.3 Payment Procedures .1 Schedule of values .1 Submit a schedule of values: .1 within five (5) days of contract award, .2 with every progress claim , and .3 as specified and directed by N CC Representative.
.2 Include the following item s, and other item s as directed by N CC Representative: .1 mobilization costs, .2 individual fees, permits and licenses under G C 14, .3 as-built records, .4 work under individual trade sections of the specification, and .5 individual change order.
.3 U p d ate schedule and include current value of work performed for each line item for each scheduled submission.
.4 Obtain N CC Representative's approval of schedule prior to first progress claim .
.5 U se approved schedule as basis for progress claim s.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 00 00 Façades and Roofs Restoration GENERAL INSTRUCTIONS National Capital Commission Page 5
4 ADM INISTR ATIVE R EQUIREM ENT S
4.1 Project Management and Coordination .1 Meetings .1 Mobilization meeting .1 Organize and conduct mobilization meeting within ten (10) days of Contract award, to be attended by Contractor, major subcontractor(s) and N CC Representative. .2 Review specified post-contract award submittals including schedules, security procedures and provisions for site access. .3 Commence work only AFT ER submittals, security procedures and provisions for site access have been confirmed and approved by NCC Representative.
.2 Progress meetings: Organize and conduct meetings, to be attended by C on tractor, major subcontractor(s) and NCC Representative, as directed by NCC Representative.
.2 Maintain one copy each of the following at job site: .1 Contract Documents, .2 Site Instructions, .3 Perm its, licenses and inspection reports, .4 Reviewed copies of submittals, and .5 Construction progress documentation.
.3 Execute work with least possible disruption to the normal use of premises.
.4 Service interruptions .1 Notify NCC Representative and utility authorities 48-hours in advance of intended services interruptions. .2 Obtain required approvals, permits and inspections from utility authorities. .3 Minimize duration of interruptions. .4 Schedule interruptions outside standard hours of work and preferably not during workweek.
4.2 Construction Progress Docum entation .1 Construction schedule .1 Submit schedule to NC C Representative within five (5) days of contract award. .2 Include dates for following, other item s as directed by NCC Representative: .1 site mobilization, .2 specified ubmittals, .3 major equipment and material deliveries, .4 commencement and completion of work in each specification trade section, and .5 completion date within time required by Contract Documents.
.2 As-built records .1 Maintain precise and accurate as-built progress records by annotating a se t of drawings and specifications set aside for this purpose. .2 Update records daily to note all deviations from indicated and specified requirements, including actual location of service lines, hidden constructions and services, and materials installed in the finished Work. .3 Transfer records to two sets of drawings and specifications obtained from NCC Representative prior to NC C Representative's inspection for issuance of Final Certificate of Completion.
4.3 Submittal Procedures .1 Refer to Section 01 33 00 - Submittal Procedures.
4.4 Special Procedures
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 00 00 Façades and Roofs Restoration GENERAL INSTRUCTIONS National Capital Commission Page 6
.1 Refer to Sections 01 35 30 - Health and Safety and 01 35 43 - Environmental Protection.
.2 Environmental procedures .1 Pressure-treated wood: Do not use wood treated with com pounds containing metals including, but not limited to, copper and arsenic, unless otherwise specified or indicated. .2 Waste water: Dispose of water from cleaning operations, surface run-off, and pumping as directed by NCC Representative. .3 Solid waste disposal .1 Dispose of waste materials in accordance with requirements of authorities having jurisdiction .2 Submit dump slips and receipts indicating the disposal date, method, and location to NCC Representative.
.3 Security procedures .1 Confidentiality: Return of all copies of all documentation related to the project, except records required to meet records retention requirements set out in law, when directed by NCC Representative. .2 Site security: NCC Representative may require .1 coordination and approval of all site visits and deliveries by a construction supervisor designated by The Commission, .2 security escorts for all personnel working in non-public areas during norm al working hours, and in all areas after norm al working hours, and .3 provision of temporary means and constructions to maintain the security of the building envelope and site perimeter.
.4 Historic treatment procedures .1 Protect relics, antiquities, item s of historical or scientific interest, and similar objects found during the course of work. .2 Notify NCC Representative immediately of any findings. Await NCC Representative's written instructions before proceeding with work adjacent to findings. .3 Relics, antiquities, and item s of historical or scientific interest shall remain the property of the Crown.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 00 00 Façades and Roofs Restoration GENERAL INSTRUCTIONS National Capital Commission Page 7
5 TEM POR ARY FACILITIES AND CO NT RO LS
5.1 Temporary Utilities
.1 Temporary electricity .1 Existing service designated by NCC Representative may be used without charge. .2 Ensure capacity is adequate prior to imposing additional loads. .3 Connect and disconnect at own expense and responsibility. .4 Do not use electricity for space heating.
.2 Temporary fire protection: to FC 301 and FC 302.
.3 Temporary scaffolding heating and ventilation .1 Provide temporary scaffolding heating required during construction period, including attendance, maintenance and fuel as follows: .1 Use fuel oil as the heating medium. .2 Size, arrange, and connect heaters. .3 Supervise and maintain units for duration of work. .4 Provide sufficient fuel oil storage to ensure uninterrupted heating. .2 Obtain NCC Representative's approval for use of proposed heaters, heat distribution methods, venting method and location. Vent so as to prevent building staining and damage to plantations. .3 Obtain NCC Representative's approval for temporary use of installed building heating system. Assume responsibility for care and maintenance of heating system affected by temporary use, including initial, periodical and final filter replacements. .4 Construction heaters must be vented to outside or be non-flameless type. Solid fuel salamanders are not permitted. .5 Provide temporary heat and ventilation in scaffolding as required to: .1 Facilitate progress of Work. .2 Protect Work and products against dampness and cold. .3 Prevent moisture condensation on surfaces. .4 Provide ambient temperatures and humidity levels for storage, installation and curing of materials. .5 Provide adequate ventilation to meet health regulations for safe working environment. .6 Maintain temperatures of minimum 10 degrees C in scaffolding where construction is in progress. .7 Maintain above-freezing temperatures within the entire tower enclosure for the duration of work. .8 Ventilating: .1 Prevent accumulations of dust, fumes, mists, vapours or gases in areas occupied during Construction. .2 Provide local exhaust ventilation to prevent harmful accumulation of hazardous substances into atmosphere of occupied areas. .3 Dispose of exhaust materials in manner that will not result in harmful exposure to persons.
.4 Continue operation of ventilation and exhaust system for time after cessation of work process to assure removal of harmful contaminants. .9 Permanent heating system of building, not to be used when available. Be responsible for damage to heating system if use is permitted. .10 On completion of Work for which permanent heating system is used, replace filters and clean system.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 00 00 Façades and Roofs Restoration GENERAL INSTRUCTIONS National Capital Commission Page 8
.11 Ensure Date of Substantial Performance and Warranties for heating system do not commence until entire system is in as near original condition as possible and is certified by Departmental Representative. .12 Pay costs for maintaining temporary heat. .13 Maintain strict supervision of operation of temporary heating and ventilating equipment to: .1 Conform with applicable codes and standards. .2 Enforce safe practices. .3 Prevent abuse of services. .4 Prevent damage to finishes. .5 Vent direct-fired combustion units to outside. .14 Be responsible for damage to Work due to failure in providing adequate heat and protection during construction. .15 Provide and maintain environmental monitoring equipment (temperature and humidity sensors) at curing locations.
.4 Temporary lighting: Provide temporary lighting as required for the work and as directed by the NCC Representative.
.5 Temporary telecommunication: Provide temporary telecommunications services and equipment required for own use and NCC Representative.
.6 Temporary water .1 Existing service designated by NCC Representative may be used without charge. .2 Ensure capacity is adequate prior to imposing additional loads. .3 Connect and disconnect at own expense and responsibility.
EN D OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 25 00 Façades and Roofs Restoration SUBSTITUTION PROCEDURES National Capital Commission Page 1
1 Substitutions during the Bidding Period
.1 Generally, specific materials, products and system s are specified in the Contract Documents to provide a standard of acceptance. Except where substitutions are specifically excluded in the individual Sections of the specification, equivalent materials, products or system s by other manufacturers are acceptable as substitutions, provided that the properties and compliances of the substitutions meet or exceed the properties and compliances of the specified materials, products and system s in all respects and that item s exposed to sight are of the same appearance as the specified items.
.2 Substitutions which do not satisfy the above requirements may be rejected by the NC C Representative. Materials, products and system s which are so rejected shall be replaced by the specified item s at no cost to the Contract.
.3 In the event that, prior to closing of bids, the Bidder wishes to offer a substitution or a proposal of work, materials or methods as an alternative to those described in the Contract Documents, he shall submit a request in writing no later than the time specified herein.
.4 The request shall include the following: .1 A description of the proposed substitution. .2 In the case of materials, products or system s, a direct comparison between the properties and compliances of the specified materials, products or system s with the properties and compliances of the proposed substitution, arranged in tabular form, in the same sequence as specified in the applicable specification section or in the sequence listed in the specified manufacturer's published literature, as appropriate. .3 In the case of materials or products, country of manufacture. .4 Shop drawings, product data, and certified test results attesting to the proposed material or product equivalence. .5 If requested by the NC C Representative, a list of no less than five projects of com parable size and complexity, where the proposed substitution has been used in a similar application. Such projects shall have been in service for at least five (5) years and, where applicable, shall have been subjected to climatic conditions similar to those experienced at the location of the Project. The list shall include the name and current telephone number of the Prim e Consultant for each project.
.5 The burden of proof is on the proposer. In the event that the NC C Representative deem s the information provided with the request for approval of a substitution to be inadequate, the request may be rejected.
.6 A request constitutes a representation that the Bidder: .1 Has investigated proposed Product and determined that it meets or exceeds the quality level of the specified Product. .2 Will provide the same warranty for the Substitution as for the specified Product. .3 Will coordinate installation and make changes to other Work which may be required for the Work to be complete with no additional cost to the NC C. (A later claim by Bidder for an addition to Contract Price because of changes in work necessitated by use of substitutions shall not be considered). .4 Waives claim s for additional costs or time extension which m ay subsequently become apparent. .5 Will reimburse the NC C for the cost of review or redesign services associated with re- approval by authorities.
.7 Substitutions will not be considered in either of the following circumstances: .1 When they are indicated or implied on shop drawing or product data submittals, without a separate written request having been made. .2 When acceptance will require revision to the Contract Documents.
.8 W here the term s "or equal", "or equivalent" or term s of similar meaning are used in the
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 25 00 Façades and Roofs Restoration SUBSTITUTION PROCEDURES National Capital Commission Page 2
specifications, this shall not be construed as acceptance of any alternative material, product or system to those specified. The use of these term s does not relieve the Subcontractor from his responsibility to follow the procedures for approval of substitutions specified herein.
.9 When a request to substitute a Product is accepted, the N CC Representative will issue an Addendum to known bidders.
2 Substitutions after Contract Award
.1 No substitutions will be permitted after award of the Contract without the prior approval of the NCC Representative by means of a letter of acceptance of the specific substitution.
.2 In the event that the Contractor wishes to offer a substitution or a proposal of work ,materials or methods as an alternative to those described in the Contract Documents, he shall submit a request in writing.
.3 The request shall include the following: .1 Reasons for the proposed substitution. .2 A description of the proposed substitution. .3 The amount of any credit offered for the substitution. .4 In the case of materials, products or system s, a direct comparison between the properties and compliances of the specified materials, products or system s with the properties and compliances of the proposed substitution, arranged in a form acceptable to the NC C Representative. .5 In the case of materials or products, country of manufacture. .6 Shop drawings, product data, and certified test results attesting to the proposed material or product equivalence. .7 If requested by the NC C Representative, a list of no less than five projects of com parable size and complexity, where the proposed substitution has been used in a similar application. Such projects shall have been in service for at least five (5) years and, where applicable, shall have been subjected to climatic conditions similar to those experienced at the location of the Project. The list shall include the name and current telephone number of the Prim e Consultant for each project.
.4 The NCC Representative reserves the right to request such additional information as the NCC Representative deem s necessary prior to acceptance or rejection of a proposed substitution.
.5 A request constitutes a representation that the Contractor: .1 Has investigated proposed Product and determined that .1 It meets or exceeds the quality level of the specified Product; or .2 The request describes accurately and completely the specific ways in which it fails to meet the quality level of the specified Product. .2 Will provide the same warranty for the Substitution as for the specified Product. .3 Will coordinate installation and make changes to other Work which may be required for the Work to be complete with no additional cost to the NC C. (A later claim by Bidder for an addition to Contract Price because of changes in work necessitated by use of substitutions shall not be considered). .4 Waives claim s for additional costs or time extension which m ay subsequently become apparent. .5 Will reimburse the NC C for the cost of review or redesign services associated with re- approval by authorities.
.6 When a request to substitute a Product is accepted, the N CC Representative will issue to the Contractor a form al letter of acceptance.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 25 00 Façades and Roofs Restoration SUBSTITUTION PROCEDURES National Capital Commission Page 3
EN D OF SEC TION
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Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 33 00 Façades and Roofs Restoration SUBMITTAL PROCEDURES National Capital Commission Page 1
PAR T 1 G EN ER AL
1.1 R elated Section s G eneral R equirem ents. .1 Section 01 00 00 - General Instructions .2 Section 01 45 00 - Quality Control. .3 Section 01 78 00 - Closeout Submittals
1.2 Administrative .1 Submit to N CC Representative submittals listed for review. Submit promptly and in orderly sequence to not cause delay in Work. Failure to submit in ample time is not considered sufficient reason for extension of Contract Time and no claim for extension by reason of such default will be allowed.
.2 Do not proceed with Work affected by submittal until review is complete.
.3 Present shop drawings, product data, samples and mock-ups in SI Metric units.
.4 W here item s or information is not produced in SI Metric units converted values are acceptable.
.5 Review submittals prior to submission to N CC Representative. This review represents that necessary requirements have been determined and verified, or will be, and that each submittal has been checked and coordinated with requirements of Work and Contract Documents. Submittals not stamped, signed, dated and identified as to specific project will be returned without being examined and considered rejected.
.6 Notify N CC Representative, in writing at time of submission, identifying deviations from requirements of Contract Documents stating reasons for deviations.
.7 Verify field measurements and affected adjacent Work are coordinated.
.8 Contractor's responsibility for errors and omissions in submission is not relieved by NCC Representative's review of submittals.
.9 Contractor's responsibility for deviations in submission from requirements of Contract Documents is not relieved by NC C Representative's review.
.10 Keep one reviewed copy of each submission on site.
1.3 Sh op D raw ing s and Prod uct D ata .1 The term "shop drawings" means drawings, diagram s, illustrations, schedules, performance charts, brochures and other data which are to be provided by the Contractor to illustrate details of a portion of Work.
.2 Indicate materials, methods of construction and attachment or anchorage, erection diagram s, connections, explanatory notes and other information necessary for completion of Work . W here articles or equipment attach or connect to other articles or equipment, indicate that such item s have been coordinated, regardless of Section under which adjacent item s will be supplied and installed. Indicate cross references to design drawings and specifications.
.3 Allow 10 days for N CC Representative's review of each submission.
.4 Adjustments made on shop drawings by N CC Representative are not intended to change
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 33 00 Façades and Roofs Restoration SUBMITTAL PROCEDURES National Capital Commission Page 2
Contract Price. If adjustments affect value of Work , state such in writing to N CC Representative prior to proceeding with Work.
.5 Make changes in shop drawings as NCC Representative m ay require, consistent with Contract Documents. When resubmitting, notify N CC Representative in writing of revisions other than those requested.
.6 Accompany submissions with transmittal letter,in [duplicate] containing: [______], containing: .1 D ate. .2 Project title and number. .3 Contractor's name and address. .4 Identification and quantity of each shop drawing, product data and sample. .5 Other pertinent data.
.7 Submissions include: .1 D ate and revision dates. .2 Project title and number. .3 N am e and address of: .1 Subcontractor. .2 Supplier. .3 Manufacturer. .4 Contractor's stamp, signed by Contractor's authorized representative certifying approval of submissions, verification of field measurements and compliance with Contract Documents. .5 Details of appropriate portions of Work as applicable: .1 Fabrication. .2 Layout, showing dimensions, including identified field dimensions, and clearances. .3 Setting or erection details. .4 Capacities. .5 Performance characteristics. .6 Standards. .7 Operating weight. .8 Wiring diagram s. .9 Single line and schematic diagram s. .10 Relationship to adjacent work.
.8 After N CC Representative's review, distribute copies.
.9 Submit 10 copies prints of shop drawings for each requirement requested in specification Sections and as N CC Representative m ay reasonably request.
.10 Submit 10 copies of product data sheets or brochures for requirements requested in specification Sections and as requested by N CC Representative where shop drawings will not be prepared due to standardized manufacture of product.
.11 Delete information not applicable to project.
.12 Supplement standard information to provide details applicable to project.
.13 If upon review by N CC Representative, no errors or omissions are discovered or if only minor corrections are made, copies will be returned and fabrication and installation of Work m ay proceed. If shop drawings are rejected, noted copy will be returned and resubmission of corrected shop drawings, through same procedure indicated above, must be performed before fabrication and installation of Work m ay proceed.
.14 The review of shop drawings by the National Capital Commission (N CC) is for the sole purpose of ascertaining conformance with the general concept. This review shall not mean that N CC approves detail design inherent in shop drawings, responsibility for which shall remain with
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 33 00 Façades and Roofs Restoration SUBMITTAL PROCEDURES National Capital Commission Page 3
Contractor submitting same, and such review shall not relieve Contractor of responsibility for errors or omissions in shop drawings or of responsibility for meeting all requirements of construction and Contract Documents. Without restricting generality of foregoing, Contractor is responsible for dimensions to be confirmed and correlated at job site, for information that pertains solely to fabrication processes or to techniques of construction and installation and for co- ordination of Work of all sub-trades.
1.4 Samples
.1 Submit for review samples in triplicate as requested in respective specification Sections. Label samples with origin and intended use.
.2 Deliver samples prepaid to NC C Representative's business address.
.3 Notify N CC Representative in writing, at time of submission of deviations in samples from requirements of Contract Documents.
.4 W here colour, pattern or texture is criterion, submit full range of samples.
.5 Adjustments made on samples by N CC Representative are not intended to change Contract Price. If adjustments affect value of Work , state such in writing to NCC Representative prior to proceeding with Work.
.6 Make changes in samples which NC C Representative may require, consistent with Contract Documents.
.7 Reviewed and accepted samples will become standard of workmanship and material against which installed Work will be verified.
PART 2 PROD UCTS
2.1 Not used
.1 Not Used.
PAR T 3 EXEC U TION
3.1 Not Used
.1 Not U sed.
EN D OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 35 29 Façades and Roofs Restoration HEALTH AND SAFETY PROCEDURES National Capital Commission Page 1
PAR T 1 G EN ER AL
1.1 Section Includes
.1 Health and safety considerations required to ensure that the Commission shows due diligence towards health and safety on construction sites, and meets the requirements la id out in the Commission's Policy - Occupational Health and Safety for Construction.
1.2 Related Sections
.1 Section 01 00 00G eneral- General R equirem Instructions ents.
.2 Section 01 33 00 - Subm ittal Procedures.
1.3 References
.1 Canada Labour Code, Part 2, Canada Occupational Safety and Health Regulations.
.2 Health Canada / Work place Hazardous Materials Information System (W H M IS). .1 Material Safety Data Sheets (M SD S).
.3 Province of Ontario .1 Occupational Health and Safety Act and Regulations for Construction Projects, R .S.O 1990 updated 2005.
1.4 Submittals .1 Make submittals in accordance with Section 01 33 00 - Submittal Procedures.
.2 Submit site-specific Health and Safety Plan prior to Award of Contract. Plan shall include: .1 Results of site specific safety hazard assessment. .2 Results of safety and health risk or hazard analysis for site tasks and operation.
.3 Submit 2 copies of Contractor's authorized representative's work site health and safety inspection reports to the N CC Representative weekly.
.4 Submit copies of reports or directions issued by Federal or Provincial health and safety inspectors.
.5 Submit copies of incident and accident reports.
.6 Submit W H M IS M SD S - Material Safety Data Sheets in accordance with Section 01 33 00 - Submittal Procedures.
.7 N CC Representative will review Contractor's site-specific Health and Safety Plan and provide comments to Contractor prior to Award of Contract. Revise Plan as appropriate and resubmit prior to Award of Contract.
.8 N CC Representative's review of Contractor's final Health and Safety plan should not be construed
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as approval and does not reduce the Contractor's overall responsibility for construction Health and Safety
1.5 Filing of Notice .1 File Notice of Project with Provincial authorities prior to beginning of Work.
1.6 Safety Assessment
.1 Perform site-specific safety hazard assessment related to project.
1.7 Meetings
.1 Schedule and administer Health and Safety meeting with N CC Representative prior to commencement of Work.
1.8 General Requirements
.1 Develop written site-specific Health and Safety Plan based on hazard assessment prior to beginning site Work and continue to implement, maintain, and enforce plan until final demobilization from site. Health and Safety Plan must address project specifications.
.2 NCC Representative may respond in writing, where deficiencies or concerns are noted and may request re-submission with correction of deficiencies or concerns.
1.9 Responsibility
.1 Be responsible for health and safety of persons on site, safety of property on site and for protection of persons adjacent to site and environment to extent that they may be affected by conduct of Work.
.2 Comply with and enforce compliance by employees with safety requirements of Contract Documents, applicable federal, provincial and local statutes, regulations, and ordinances, and with site-specific Health and Safety Plan.
1.10 Compliance Requirements
.1 Com ply with Ontario Health and Safety Act and Regulations for Construction Projects, R.S.O ..
1.11 Unforeseen Hazards
.1 When unforeseen or peculiar safety-related factor, hazard, or condition occur during performance of Work, follow procedures in place for Employee's Right to Refuse Work in accordance with Acts and Regulations of Province having jurisdiction and advise NC C Representative verbally and in writing.
1.12 Health and Safety Coordinator
.1 Employ and assign to Work, competent and authorized representative as Health a n d Safety
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Coordinator. Health and Safety Coordinator must: .1 Have minim um 2 years' site-related working experience specific to activities associated with similar projects. .2 Have working knowledge of occupational safety and health regulations. .3 Be responsible for completing Contractor's Health and Safety Training Sessions and ensuring that personnel not successfully completing required training are not permitted to enter site to perform Work. .4 Be responsible for implementing, enforcing daily and monitoring site-specific Contractor's Health and Safety Plan. .5 Be on site during execution of Work and report directly to and be under direction of site supervisor.
1.13 Posting of Documents
.1 Ensure applicable item s, articles, notices and orders are posted in conspicuous location on site in accordance with Acts and Regulations of Province having jurisdiction, and in consultation with NC C Representative.
1.14 Correction of N on -compliance
.1 Immediately address health and safety non-compliance issues identified by authority having jurisdiction or by N CC Representative.
.2 Provide N CC Representative with written report of action taken to correct non-compliance of health and safety issues identified.
.3 N CC Representative m ay stop Work if non-compliance of health and safety regulations is not corrected.
1.15 Po w der Actuated Devices
.1 U se of powder actuated devices is prohibited.
1.16 Work Stoppage
.1 Give precedence to safety and health of public and site personnel and protection of environment over cost and schedule considerations for Work.
1.17 Designated Substances, Volatile Com pounds, Unforeseen Hazards
.1 Notify N CC Representative 48 hours in advance of work in occupied areas involving designated substances (under applicable provincial legislation), hazardous substances (Canada Labour C ode Part II Section 10), and before painting, or using volatile com pounds.
.2 Asbestos: Stop work and notify N CC Representative immediately if a material resembling asbestos is encountered. Do not proceed at such locations without written instructions from N CC Representative.
.3 Silica: U se appropriate respiratory protection and ventilation during the demolition and/or modification of structures with products that contain silica. Silica is a crystalline component of
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concrete and cement. Silica dust is created by blasting, grinding, crushing and sandblasting silica-containing materials.
1.18 Building Smoking Environment
.1 Smoking is not permitted on site. Obey smoking restrictions on building property.
PART 2 PRODUCTS
2.1 Not Used
.1 Not used.
PART 3 EXECUTION
3.1 Not Used
.1 Not used.
EN D OF SEC TION
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PAR T 1 G EN ER AL
1.1 R elated Section s .1 Section 01 00 00 - General Instructions G eneral R equirem ents. .2 Section 01 33 00 - Submittal Procedures. .3 Section 01 78 00 - Closeout Submittals.
1.2 Inspection .1 Allow N CC Representative access to Work. If part of Work is in preparation at locations other than Place of Work, allow access to such Work whenever it is in progress. .2 Give timely notice requesting inspection if Work is designated for special tests, inspections or approvals by NCC Representative Instructions, or law of Place of Work. .3 If Contractor covers or permits to be covered Work that has been designated for special tests, inspections or approvals before such is made, uncover such Work, have inspections or tests satisfactorily completed and make good such Work. .4 N CC Representative will order part of Work to be examined if Work is suspected to be not in accordance with Contract Documents. If, upon examination such work is found not in accordance with Contract Documents, correct such Work and pay cost of examination and correction. If such Work is found in accordance with Contract Documents, N CC Representative shall pay cost of examination and replacement.
1.3 Independent Inspection Agencies .1 Independent Inspection/Testing Agencies will be engaged by N CC Representative for purpose of inspecting and/or testing portions of Work. Cost of such services will be borne by N CC Representative. .2 Provide equipment required for executing inspection and testing by appointed agencies. .3 Employment of inspection/testing agencies does not relax responsibility to perform Work in accordance with Contract Documents. .4 If defects are revealed during inspection and/or testing, appointed agency will request additional inspection and/or testing to ascertain full degree of defect. Correct defect and irregularities as advised by N CC Representative at no cost to NC C Representative. Pay costs for retesting and re-inspection.
1.4 Access to Work .1 Allow inspection/testing agencies access to Work, off site manufacturing and fabrication plants. .2 C o-operate to provide reasonable facilities for such access.
1.5 Procedures .1 Notify appropriate agency and N CC Representative in advance of requirement for tests, in order that attendance arrangements can be made. .2 Submit samples and/or materials required for testing, as specifically requested in specifications. Submit with reasonable promptness and in orderly sequence to not cause delays in Work. .3 Provide labour and facilities to obtain and handle samples and materials on site. Provide
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sufficient space to store and cure test samples. 1.6 R ejected Work .1 Remove defective Work, whether result of poor workmanship, use of defective products or damage and whether incorporated in Work or not, which has been rejected by N CC Representative as failing to conform to Contract Documents. Replace or re-execute in accordance with Contract Documents. .2 Make good other Contractor's work dam aged by such rem ovals or replacements promptly. .3 If, in opinion of N CC Representative, it is not expedient to correct defective Work or Work not performed in accordance with Contract Documents, Owner will deduct from Contract Price difference in value between Work performed and that called for by Contract Documents, amount of which will be determined by NCC Representative.
1.7 Submittals .1 Submit 6 copies of inspection and test reports to NCC Representative.
PART 2 PRODUCTS
2.1 Not Used
.1 Not Used.
PAR T 3 EXECUTION
3.1 Not Used
.1 Not U sed.
EN D OF SEC TION
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PAR T 1 G EN ER AL
1.1 R elated Section s .1 Section 01 00 00 - General Requirements. .2 Section 01 33 00 - Submittal Procedures.
1.2 References .1 Canadian Standards Association (C SA International) .1 CAN /C SA-Z 321-96(R 2006), Signs and Symbols for the Occupational Environment.
1.3 Installation and Removal .1 Prepare site plan indicating proposed location and dimensions of area to be fenced and used by Contractor, avenues of ingress/egress to fenced area and details of fence installation. .2 Identify areas which have to be graveled to prevent tracking of mud. .3 Indicate use of supplemental or other staging area. .4 Provide construction facilities in order to execute work expeditiously. .5 Remove from site all such work after use.
1.4 Scaffolding .1 Refer to Section 01 54 23 - Temporary Scaffolding.
1.5 Hoisting .1 Provide, operate and maintain hoists and cranes required for moving of workers, materials and equipment. Make financial arrangements with Subcontractors for their use thereof. .2 Hoists and cranes to be operated by qualified operators.
1.6 Site Storage/Loading .1 Confine work and operations of employees by Contract Documents. Do not unreasonably encumber premises with products. .2 Do not load or perm it to load any part of Work with weight or force that will endanger Work.
1.7 Construction Parking
.1 No parking for personal vehicles is available on site. Contractor must provide own parking elsewhere at Contractor's expense.
1.8 Equipment, Too l and Materials Storage .1 See "D -008 Priority of Work & Operational Constraints" for limitations regarding on-site storage of materials that shall apply to the foundation wall restoration work. .2 Locate materials on site in manner to cause least interference with work activities.
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1.9 Sanitary and Safety Facilities .1 Provide sanitary facilities for work force in accordance with governing regulations and ordinances. .2 Post notices and take precautions as required by local health authorities. Keep area and premises in sanitary condition. .3 Provide marked and fully stocked first-aid case in a readily available location.
1.10 Construction Sign age .1 No signs or advertisements, other than warning signs, are permitted on site. .2 Signs and notices for safety and instruction in both official languages Graphic symbols to CA N /C SA -Z321. .3 Maintain approved signs and notices in good condition for duration of project, and dispose of offsite on completion of project or earlier if directed by NC C Representative.
PART 2 PROD UCTS
2.1 Not Used .1 Not U sed.
PAR T 3 EXEC U TION
3.1 Not Used
.1 Not U sed.
EN D OF SEC TION
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PAR T 1 G EN ER AL
1.1 Related Sections .1 Section 01 33 00 - Submittal Procedures. .2 Section 01 35 30 - Health and Safety Procedures. .3 Section 01 52 00 - Construction Facilities.
1.2 References
.1 American Society for Testing and Materials (AS T M ): .1 AS T M G 154-06 Standard Practice for Operating Fluorescent Light Apparatus for U V Exposure of Nonmetallic Materials. .2 Canadian General Standards Board (C G SB): .1 C AN /C G SB -4.2 Textile T est Methods: .1 9.2-M 90(R2004), Breaking Strength of Fabrics - Grab Method - Constant-time-to-break Principle. .2 9.4-M 91(R 2004), Breaking Strength of Yarns - Single Strand Method. .3 11.1-94(R 2000), Bursting Strength - Diaphragm Pressure T est. .3 Underwriters Laboratories ' of Canada (ULC). .1 CAN /U LC -S109-03, Flam e Tests of Flam e-Resistant Fabrics and Films.
1.3 Design Responsibility .1 Notwithstanding the requirements specified herein, the Contractor is responsible for the de sign and construction of temporary scaffolding and associated ladders, hoists, netting, cold weather enclosures and related item s.
1.4 Regulatory Requirements .1 The design and construction of the temporary scaffolding shall com ply with all applicable municipal, provincial and federal safety regulations. .2 Make required submittals to the authorities having jurisdiction and obtain necessary approvals and perm its.
1.5 Submittals .1 Make submittals in accordance with Section 01 33 00 - Submittal Procedures. .2 Scaffolding Drawings: .1 Submit drawings of each proposed temporary scaffolding assembly. Do not commence work on site until drawings have been reviewed and accepted by the NC C Representative. .2 Indicate the general layout of the scaffolding, materials, profiles, and details of connections. .3 Include exact locations of attachments to the existing buildings and complete details of methods of attachment. .4 Temporary scaffolding, including all related connections and fastenings, shall be designed by a structural engineer licensed to practise in the Province of Ontario. Each scaffolding drawing submitted shall bear the stamp and signature of the aforesaid structural engineer. .3 If requested by the NC C Representative, submit engineering calculations.
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.4 Samples: Submit a sample of each of the following: .1 300 mm long sample of each profile of scaffolding framing. .2 Sample of each type of connector. .3 Sample of each type of attachment to the building structure. .4 Minim um 200 mm x 200 mm sample of scaffold netting.
.5 Post-Installation Certification: After the installation of each scaffolding assembly, provide written certification, signed by the Structural Engineer responsible for the scaffolding design, that all item s have been properly installed in accordance with the scaffolding drawings and that the scaffolding assembly is compliant with governing regulations.
PART 2 PRODUCTS
2.1 Scaffolding .1 Provide a demountable temporary metal scaffolding system, c/w all accessories, with the following characteristics: .1 Construct scaffolding from corrosion-resistant materials such as galvanized or stainless steel or aluminum. .2 Design the scaffolding assemblies to carry design loads, including wind loads imposed by the wind resistance of the netting. .3 Design and construct each scaffolding assembly so that it derives no vertical support from the building and requires minim um attachment to the building fabric. .4 Devices for attachment to the building fabric shall be fabricated from stainless steel and shall be reviewed and accepted by the NC C Representative prior to installation. .5 Generally, scaffolding shall consist of two rows of standards (vertical supports, connected by ledgers and transom s (horizontal elements)). Standards shall sit on timber sole plates to distribute the imposed loads and to protect the ground surfaces. If telescopic standards are used they shall be plumb and properly founded. Use only the manufacturer’s high tensile steel pins for support. .6 Equip scaffolding with sufficient platform s to provide complete access to the building facade without having to move platform s up or down. .7 Platform s shall be undamaged and shall not become slippery when wet. Remove and replace boards which are dam aged and/or become slippery. .8 Provide an effective means to hold down platform boards in high winds. .9 If masonry units or other heavy localized loads are to be carried on a platform during the course of the work , design the supporting scaffolding framing and the platform for the loads to be supported. .10 Design and construct attachments to the building to minimize dam age to the building fabric. Fabricate all attachments from stainless steel. .11 Design and erect scaffolding so that the building fabric is not dam aged when minor movement occurs under loading conditions. Provide all tube ends within 25 mm of the wall surface with plastic end caps
2.2 Scaffold Enclosure
.1 Netting: .1 High strength, high density polyethylene (HDPE) mesh with a stretching weave, containing flam e retardant and ultra-violet stabilizers, colour clear (transparent). .2 Webbing at edges with eyelets at 100 mm o.c. .3 Properties: .1 Mesh Diameter: 3.2 mm . .2 Weight: 270 g/m 2. .3 Drop test: 25 k g weight dropped into middle of 3660 mm x 7620 mm panel: N o dam age. .4 Mesh breaking strength: (CAN/CG SB-4.2 Method 9.2): Length: 114.6 kg W idth: 78.5 kg .5 Elonga ti on at break: Leng th: 51%
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Width: 14 1% .6 Ya rn breaking str eng th (CAN /CG SB-4.2 Me tho d 9.4): 7.26 kg .7 Bu rst strength: 2689 kPa (C AN /C G SB -4.2 Meth od 11.1): .8 Wound ed Bu rst streng th: (C AN /C G SB -4.2 Method 11.1): 627.4 kPa .9 Operating temperature range: -40 oC to .10 U V resistan ce (AS T M G 154 ): +>9040%oC . .11 Flam e res istanc e (C AN /U LC -S109 ): Compli es
.2 Fastenings: .1 Sealant tape for joining rolls and securing to a surface: As recommended by netting manufacturer. .2 C able ties: U V resistant, zip-action, 280 mm long, clear colour to match netting. .3 Toggle ties: Elasticated, 205 mm to 460 mm stretch. .4 Tie cord: 12 mm dia x 220 m long coils.
PAR T 3 EXECUTION
3.1 Examination/Preparation .1 Examine areas and conditions under which each scaffold is to be erected and notify the N CC Representative in writing of conditions detrimental to a proper scaffolding assembly. .2 Verify that the ground surface provides adequate support for the scaffold structure. .3 Examine the building at each point of attachment of the scaffold and verify the adequacy of the building fabric to accept the fastener with minim al dam age and to withstand the in-service loads imposed by the scaffold. .4 Do not proceed with the work until unsatisfactory conditions have been corrected to the satisfaction of the installer. .5 Obtain the NC C Representative's written approval of the locations and methods of attachment to the existing building fabric prior to the erection of each scaffold. .6 Commencement of the erection of scaffolding will be construed as acceptance of the site conditions and, thereafter, the Contractor shall be fully responsible for dam age to the existing building fabric and shall make good any such dam age to the satisfaction of the NC C Representative and at no additional cost to the Contract.
3.2 Erection of Scaffolding .1 Erect each scaffold in accordance with the reviewed and accepted scaffolding drawings and in conformity with applicable construction safety regulations. .2 Install netting. .1 Do not attempt to install netting in windy conditions. .2 Tie netting to scaffold frame at the frequency indicated on the scaffolding drawings and recommended by the netting manufacturer. .3 At adjacent roll edges, overlap webbing and pass ties through both eyelets. 3.3 Inspections .1 After the erection of each scaffold, have the engineer responsible for the scaffold design c o n duct a site inspection and issue the specified post-installation certification. Make any adjustments required by the scaffolding engineer and/or the authorities having jurisdiction. .2 Conduct weekly inspections of each scaffold to verify netting remains firmly tied and scaffold frame, platform s and accessories remain in proper condition. Replace broken ties and torn netting.
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Adjust, repair or replace defective platform components, framing m embers, con ne c tors and accessories to the satisfaction of the scaffolding engineer and/or the authorities having jurisdiction.
3.4 Scaffolding Removal .1 Deconstruct and remove each scaffold as soon as it is no longer required for the execution of the work and after review and acceptance of the work by the NC C Representative. .2 Make good dam age to the building fabric at the points of attachment and restore ground surfaces to a condition at least equal to that which existed prior to commencement of the work.
EN D OF SEC TION
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PAR T 1 G EN ER AL
1.1 R elated Section s
.1 Section 01 73 00 - Execution.
1.2 Quality .1 U se products com pliant with standards referenced in applicable federal, provincial and municipal legislation unless otherwise indicated or specified. Resolve conflict or discrepancy among standards as directed by N CC Representative. .2 Products, materials, equipment and articles incorporated in Work shall be new, not dam aged or defective, and of best quality for purpose intended (compatible with specifications). If requested, furnish evidence as to type, source and quality of products provided. .3 Procurement policy is to acquire, in cost effective manner, item s containing highest percentage of recycled and recovered materials practicable consistent with maintaining satisfactory levels of competition. Make reasonable efforts to use recycled and recovered materials and in otherwise utilizing recycled and recovered materials in execution of work. .4 Defective products, whenever identified prior to completion of Work, will be rejected, regardless of previous inspections. Inspection does not relieve responsibility, but is precaution against oversight or error. Remove and replace defective products at own expense and be responsible for delays and expenses caused by rejection. .5 Should disputes arise as to quality or fitness of products, decision rests strictly with N CC Representative based upon requirements of Contract Documents. .6 Unless otherwise indicated in specifications, maintain uniformity of manufacture for any particular or like item throughout building. .7 Perm anent labels, trademark s and nameplates on products are not acceptable in prominent locations, except where required for operating instructions, or when located in mechanical or electrical rooms.
1.3 Storage, Handling and Protection .1 Handle and store products in manner to prevent dam age, adulteration, deterioration and soiling and in accordance with manufacturer's instructions when applicable. .2 N CC Representative m ay designate on-site areas for storage of material. Equip and maintain designated storage areas. .3 Do not unreasonably encumber site with materials or equipment. Move stored materials or equipment that interfere with operations of other contractors or occupants as directed by N CC Representative. .4 Obtain and pay for storage or work areas off-site as needed for operations. .5 Store pack aged or bundled products in original and undam aged condition with manufacturer's seal and labels intact. Do not remove from packaging or bundling until required in Work. .6 Store products subject to dam age from weather in weatherproof enclosures. .7 Store cementitious products clear of earth or concrete floors, and away from walls. .8 Keep sand, when used for grout or mortar materials, clean and dry. Store sand on wooden platform s and cover with waterproof tarpaulins during inclement weather. .9 Remove and replace dam aged products at own expense and to satisfaction of N CC Representative.
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.10 T ouch-up dam aged factory finished surfaces to NC C Departmental Representative's satisfaction. U se touch-up materials to match original. Do not paint over name plates. 1.4 Transportation .1 Pay costs of transportation of products required in performance of Work. .2 Transportation cost of products supplied by N CC Representative will be paid for by N CC Representative. Unload, handle and store such products.
1.5 Manufacturer's Instruction s .1 Unless otherwise indicated in specifications, install or erect products in accordance with manufacturer's instructions. Do not rely on labels or enclosures provided with products. Obtain written instructions directly from manufacturers. .2 Notify N CC Representative in writing, of conflicts between specifications and manufacturer's instructions, so that N CC Representative will establish course of action. .3 Improper installation or erection of products, due to failure in com plying with these requirements, authorizes NCC Representative to require rem oval and re-installation at no increase in Contract Price or Contract Time.
1.6 Quality of Work .1 Ensure Quality of Work is of highest standard, executed by workers experienced and skilled in respective duties for which they are employed. Immediately notify NC C Representative if required Work is such as to make it impractical to produce required results. .2 Do not employ anyone unskilled in their required duties. N CC Representative reserves right to require dismissal from site, workers deemed incompetent or careless. .3 Decisions as to standard or fitness of quality of work in cases of dispute rest solely with NCC Representative, whose decision is final.
1.7 Co-ordination .1 Ensure co-operation of workers in laying out Work. Maintain efficient and continuous supervision. .2 Be responsible for coordination and placement of openings, sleeves and accessories.
1.8 Remedial Work .1 Refer to Section 01 73 00 - Execution .2 Perform remedial work required to repair or replace parts or portions of Work identified as defective or unacceptable. C o-ordinate adjacent affected Work as required. .3 Perform remedial work by specialists familiar with materials affected. Perform in a manner to neither dam age nor put at risk any portion of Work.
1.9 Fastening s .1 Provide metal fastenings and accessories in same texture, colour and finish as adjacent materials, unless indicated otherwise. .2 Prevent electrolytic action between dissimilar metals and materials. .3 U se non-corrosive hot dip galvanized steel fasteners and anchors for securing exterior work, unless stainless steel or other material is specifically requested in affected specification Section. .4 Keep exposed fastenings to a minimum, space evenly and install neatly. .5 Fastenings which cause spalling or cracking of material to which anchorage is made are not acceptable.
1.10 Fastenings - Equipment .1 U se fastenings of standard commercial sizes and patterns with material and finish suitable for
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service. .2 U se heavy hexagon heads, semi-finished unless otherwise specified. U se No. 304 stainless steel for exterior areas. .3 Bolts m ay not project more than one diameter beyond nuts. .4 U se plain type washers on equipment, sheet metal and soft gasket lock type washers where vibrations occur. U se resilient washers with stainless steel.
1.11 Protection of Work in Progress .1 Prevent overloading of parts of building. Do not cut, drill or sleeve load bearing structural member, unless specifically indicated without written approval of N CC Representative.
1.12 Existing Utilities .1 When breaking into or connecting to existing services or utilities, execute Work at times directed by local governing authorities, with minim um of disturbance to Work , to building occupants and pedestrian and vehicular traffic. .2 Protect, relocate or maintain existing active services. When services are encountered, cap off in manner approved by authority having jurisdiction. Stake and record location of capped service.
PART 2 PRODUCTS
2.1 Not Used .1 Not U sed.
PAR T 3 EXECUTION
3.1 Not Used .1 Not U sed.
EN D OF SEC TION
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PAR T 1 G EN ER AL
1.1 R elated Section s .1 Section 01 33 00 - Submittal Procedures. .2 Individual technical Sections: Cutting and patching incidental to work of Section. Advance notification to other Sections required.
1.2 Submittals .1 Submittals: in accordance with Section 01 33 00 - Submittal Procedures. .2 Submit written request in advance of cutting or alteration which affects: .1 Structural integrity of elements of Project. .2 Integrity of weather-exposed or moisture-resistant elements. .3 Efficiency, maintenance, or safety of operational elements. .4 Visual qualities of sight-exposed elements. .5 Work of N CC or separate contractor. .3 Include in request: .1 Identification of project. .2 Location and description of affected Work. .3 Statement on necessity for cutting or alteration. .4 Description of proposed Work , and products to be used. .5 Alternatives to cutting and patching. .6 Effect on Work of N CC or separate contractor. .7 Written permission of affected separate contractor. .8 D ate and time work will be executed.
1.3 W ork Restrictions . 1 Standard hours of work and workweek : 0700-1800 hrs., Monday to Friday. .2 For work on site outside standard hours or workweek: .1 obtain permission from N CC Representative, .2 give NC C Representative 48-hours’ notice, and .3 assume extra costs of labour, material and equipment. .3 Work stoppages, restrictions and interruptions .1 Anticipate four (4) half-day work stoppages due to activities and/or functions, unplanned as yet. Expect minim um 24 hours’ notice of half-day stoppages. .2 Anticipate one (1) full-day work stoppage due to activities and/or functions, unplanned as yet. Expect minim um 24 hours’ notice of full-day stoppages. .3 Anticipate four (4) two-hour work stoppages restrictions due to activities and/or functions, unplanned as yet. Expect zero (0) notice of half-day stoppages. .4 Include in the contract price for the cost of these work stoppages, restrictions and interruptions. The contract completion date will be extended by the cumulative duration of the requested work stoppages.
1.4 Workmanship .1 U se best quality workmanship, executed by workers experienced and skilled in respective duties for which they are employed. .2 Install materials to manufacturer instructions unless otherwise specified. .3 Ensure cooperation of workers in laying out the Work . Maintain efficient and continuous supervision. .4 Pay for redoing work that, in the NC C Representative 's opinion, does not meet the indicated or specified quality of workmanship.
1.5 Materials .1 Required for original installation. .2 Change in Materials: Submit request for substitution in accordance with Section 01 33 00 – Submittal Procedures.
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1.6 Examination and Preparation .1 Acceptance of conditions, site examination: .1 Examine site and review all information pertaining to existing conditions likely to affect the proper execution of the Work. .2 Claims for additional compensation will not be entertained for labor or material required to complete the Work that could have been reasonably ascertained by site examination and review of existing conditions. .2 Construction layout: .1 Provide all equipment, material and services required to set out the Work, and as required by NCC Representative to inspect setting out of the Work. .2 Set out the Work as indicated and specified. Resolve conflict or discrepancy among indicated and specified requirements as directed by NCC Representative. .3 Submit record of setting out to NCC Representative if requested.
1.7 Protection .1 Provide supports to assure structural integrity of surroundings; provide devices and methods to protect other portions of project from dam age. .2 Provide protection from elements for areas which are to be exposed by uncovering work ; maintain excavations free of water.
1.8 Execution .1 Inspect existing conditions, including elements subject to dam age or movement during cutting and patching. .2 After uncovering, inspect conditions affecting performance of Work. .3 Remove and replace defective and non-conforming Work. .4 Beginning of cutting or patching means acceptance of existing conditions. .5 Execute cutting, fitting, and patching including excavation and fill, required to complete Work. .6 Make cuts with clean, true, smooth edges. Do not use impact devices to cut concrete, masonry or tile work. .7 Fit several parts together, to integrate with other Work. .8 Uncover Work to install ill-timed Work. .9 Prepare surfaces to receive patching and finishing. Remove and replace defective and non- conforming work that is to form the base or substrate for new work. .10 Perform work to avoid dam age to other work. .11 Refinish surfaces to match adjacent finishes. Refinish continuous surfaces to nearest intersection. Refinish entire assemblies to attachment points. .12 Fit work airtight to pipes, sleeves, ducts and conduits and, in the case of work penetrating exterior building elements, make watertight. .13 Employ original installer to perform cutting and patching for weather-exposed and moisture- resistant elements, and sight-exposed surfaces.
1.9 Firesto ps and Sm oke Seals .1 Install as required and to U LC -S115 to provide fire resistance not les s than that of surrounding fire separation.
1.10 Sleeves, H angers an d Inserts .1 Coordinate setting and packing of sleeves and supply and installation of hangers and inserts. Obtain NCC Representative's approval before cutting into structure.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 73 00 Façades and Roofs Restoration EXECUTION National Capital Commission Page 3
1.11 Protecting Installed Construction .1 Protect adjacent property and installed construction such as hard and soft landscaping, roads, utilities, structures, and finishes, from dam age including the effects of extreme heat or cold. .2 Restore property and construction dam aged during the execution of the Work, or provide appropriate compensation to affected parties. .3 Prevent snow and ice accumulation on the Work.
PART 2 PRODUCTS
2.1 Not Used .1 Not U sed.
PART 3 EXECUTION
3.1 Not Used .1 Not U sed.
EN D OF SEC TION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 74 11 Façades and Roofs Restoration CLEANING National Capital Commission Page 1
PAR T 1 GENERAL
1.1 R elated Section s .1 Section 01 00 00 - General Instructions .2 Section 01 74 21 - Construction/Demolition Waste Management and Disposal. .3 Section 01 77 00 - Closeout Procedures.
1.2 Project Cleanliness .1 Maintain Work in tidy condition, free from accumulation of waste products and debris, other than that caused by N CC Representative or other Contractors. .2 Remove waste materials from site at daily regularly scheduled times or dispose of as directed by NCC Representative. Do not burn waste materials on site, unless approved by N CC Representative. .3 Clear snow and ice from access to building, bank /pile snow in designated areas only. .4 Make arrangements with and obtain permits from authorities having jurisdiction for disposal of waste and debris. .5 Provide on-site containers for collection of waste materials and debris. .6 Provide and use marked separate bins for recycling. Refer to Section 01 74 21 – Construction / Demolition Waste Management and Disposal. .7 Remove of waste materials and debris and deposit in waste container at end of each working day or more often when directed by the NCC Representative. .8 Dispose of waste materials and debris off site. .9 C lean interior areas prior to start of finishing work , and maintain areas free of dust and other contaminants during finishing operations. .10 Store volatile waste in covered metal containers, and remove from premises at end of each working day. .11 Provide adequate ventilation during use of volatile or noxious substances. U se of building ventilation system s is not permitted for this purpose. .12 U se only cleaning materials recommended by manufacturer of surface to be cleaned, and as recommended by cleaning material manufacturer. .13 Schedule cleaning operations so that resulting dust, debris and other contaminants will not fall on wet, newly painted surfaces nor contaminate building system s.
1.3 Final Cleaning .1 When Work is Substantially Performed remove surplus products, tools, construction machinery and equipment not required for performance of remaining Work. .2 Remove waste products and debris other than that caused by others, and leave Work clean and suitable for occupancy. .3 Prior to final review remove surplus products, tools, construction machinery and equipment. .4 Remove waste products and debris other than that caused by NCC Representative or other Contractors. .5 Remove waste materials from site at regularly scheduled times or dispose of as directed by NCC Representative. Do not burn waste materials on site, unless approved by NCC Representative. .6 Make arrangements with and obtain permits from authorities having jurisdiction for disposal of waste and debris. .7 Remove stains , spots, m ark s and dirt from decorative work , electrical and mechanical fixtures, furniture fitments, walls, and floors. .8 Broom clean and wash exterior walk s, steps and surfaces; rake clean other surfaces of grounds. .9 Remove dirt and other disfiguration from exterior surfaces. .10 C lean and sweep roofs, gutters, areaways, and sunken wells.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 74 11 Façades and Roofs Restoration CLEANING National Capital Commission Page 2
PART 2 PROD UCTS
2.1 Not Used
.1 Not U sed.
PAR T 3 EXEC U TION
3.1 Not Used
.1 Not U sed.
EN D OF SEC TION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 74 21 Façades and Roofs Restoration CONSTRUCTION DEMOLITION WASTE MANAGEMENT AND DISPOSAL National Capital Commission Page 1
PAR T 1 G EN ER AL
1.1 R elated Section s .1 Section 01 00 00 - General requirements. .2 Section 01 33 00 - Submittal Procedures.
1.2 Definition s .1 Cost/Revenue Analysis Work plan (C R AW ): based on information from W R W , and intended as financial tracking tool for determining economic status of waste management practices. .2 Demolition Waste Audit (D W A): relates to actual waste generated from project. .3 Materials Source Separation Program (M SSP): consists of series of ongoing activities to separate reusable and recyclable waste material into material categories from other types of waste at point of generation. .4 Recyclable: ability of product or material to be recovered at end of its life cycle and re- manufactured into new product for reuse. .5 Recycle: process by which waste and recyclable materials are transformed or collected for purpose of being transferred into new products. .6 Recycling: process of sorting, cleansing, treating and reconstituting solid waste and other discarded materials for purpose of using in altered form. Recycling does not include burning, incinerating, or thermally destroying waste. .7 Reuse: repeated use of product in same form but not necessarily for same purpose. Reuse includes: .1 Salvaging reusable materials from re-modeling projects, before demolition stage, for resale, reuse on current project or for storage for use on future projects. .2 Returning reusable item s including pallets or unused products to vendors. .8 Salvage: rem oval of structural and non-structural materials from deconstruction / disassembly projects for purpose of reuse or recycling. .9 Separate Condition: refers to waste sorted into individual types. .10 Source Separation: acts of keeping different types of waste materials separate beginning from first time they became waste. .11 Waste Audit (W A): detailed inventory of materials in building. Involves quantifying by volume / weight amounts of materials and wastes generated during construction, demolition, deconstruction, or renovation project. Indicates quantities of reuse, recycling and landfill. Refer to Schedule A. .12 Waste Management Coordinator (W M C ) : contractor representative responsible for supervising waste management activities as well as coordinating related, required submittal and reporting requirements. .13 Waste Reduction Work plan (W R W ): written report which addresses opportunities for reduction, reuse, or recycling of materials. Refer to Schedule B. W R W is based on information acquired from W A (Schedule A).
1.3 Documents .1 Maintain at job site, one copy of following documents: .1 Waste Audit. .2 Waste Reduction Work plan. .3 Material Source Separation Plan. .4 Schedules A, B, C, and E completed for project.
1.4 Submittals .1 Submittals in accordance with Section 01 33 00 - Submittal Procedures. .2 Prepare and submit following prior to project start-up:
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 74 21 Façades and Roofs Restoration CONSTRUCTION DEMOLITION WASTE MANAGEMENT AND DISPOSAL National Capital Commission Page 2
.1 Submit 6 copies of completed Waste Audit (W A): Schedule A. .2 Submit 6 copies of completed Waste Reduction Workplan (W R W ): Schedule B. .3 Submit 6 copies of completed Demolition Waste Audit (DW A): Schedule C. .4 Submit 6 copies of Materials Source Separation Program (M SS P) description.
.3 Submit before final payment summary of waste materials salvaged for reuse, recycling or disposal by project using deconstruction / disassembly material audit form . .1 Failure to submit could result in hold back of final payment. .2 Provide receipts, scale tickets, waybills, and show quantities and types of materials reused, recycled, co-mingled and separated off-site or disposed of. .3 For each material reused, sold or recycled from project, include amount quantities by weight or by number, type and size of item s, as appropriate, and the destination. .4 For each material land filled or incinerated from project, include amount of material and identity of landfill, incinerator or transfer station.
1.5 Waste Audit (W A) .1 Conduct W A prior to project start-up. .2 Prepare W A: Schedule A. .3 Record, on W A - Schedule A, extent to which m aterials or products used consist of recycled or reused materials or products.
1.6 Waste Reduction Workplan (W R W ) .1 Prepare W R W prior to project start-up. .2 W R W shall include but not be limited to: .1 Destination of materials listed. .2 Deconstruction / disassembly techniques and sequencing. .3 Schedule for deconstruction / disassembly. .4 Location. .5 Security. .6 Protection. .7 Clear labeling of storage areas. .8 Details on materials handling and rem oval procedures. .9 Quantities for materials to be salvaged for reuse or recycled and materials sent to landfill. .3 Structure W R W to prioritize actions and follow 3R 's hierarchy, with Reduction as first priority, followed by Reuse, then Recycle. .4 Describe management of waste. .5 Identify opportunities for reduction, reuse, and recycling of materials. Based on information acquired from W A. .6 Post W R W or summary where workers at site are able to review content. .7 Set realistic goals for waste reduction recognize existing barriers and develop strategies to overcome these barriers. .8 Monitor and report on waste reduction by documenting total volume and cost of actual waste removed from project.
1.7 Demolition Waste Audit (D W A) .1 Prepare DW A prior to project start-up. .2 Complete DW A: Schedule C. .3 Provide inventory of quantities of materials to be salvaged for reuse, recycling, or disposal.
1.8 Materials Source Separation Program (M SSP) .1 Prepare MSSP and have ready for use prior to project start-up. .2 Implement M SS P for waste generated on project in compliance with approved methods and as reviewed by NCC Representative. .3 Provide on-site facilities for collection, handling, and storage of anticipated quantities of reusable
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 74 21 Façades and Roofs Restoration CONSTRUCTION DEMOLITION WASTE MANAGEMENT AND DISPOSAL National Capital Commission Page 3
and recyclable materials. .4 Provide containers to deposit reusable and recyclable materials. .5 Locate containers in locations, to facilitate deposit of materials without hindering daily operations. .6 Locate separated materials in areas which minimize material dam age. .7 Collect, handle, store on-site, and transport off-site, salvaged materials in separate condition. .1 Transport to approved and authorized recycling facility.
1.9 Storage, Handling and Protection .1 Store, materials to be reused, recycled and salvaged in locations as directed by NCC Representative. .2 Unless specified otherwise, materials for rem oval become Contractor's property. .3 Separate non-salvageable materials from salvaged item s. Transport and deliver non-salvageable item s to licensed disposal facility. .4 Protect surface drainage, mechanical and electrical from dam age and blockage. .5 Separate and store materials produced during dismantling of structures in designated areas. .6 Prevent contamination of materials to be salvaged and recycled and handle materials in accordance with requirements for acceptance by designated facilities. .1 O n-site source separation is recommended. .2 Remove co-mingled materials to off-site processing facility for separation. .3 Provide waybills for separated materials.
1.10 Disposal of Wastes .1 Do not bury rubbish or waste materials. .2 Do not dispose of waste, volatile materials, mineral spirits, oil or paint thinner into waterways, storm, or sanitary sewers. .3 Keep records of construction waste including: .1 Number and size of bins. .2 Waste type of each bin. .3 Total tonnage generated. .4 Tonnage reused or recycled. .5 Reused or recycled waste destination. .4 Remove materials from deconstruction as deconstruction / disassembly Work progresses. .5 Prepare project summary to verify destination and quantities on a material-by-material basis as identified in pre-demolition material audit.
1.11 U se of Site and Facilities .1 Execute work with least possible interference or disturbance to norm al use of premises. .2 Provide temporary security measures approved by NCC Representative.
1.12 Scheduling .1 Co-ordinate Work with other activities at site to ensure timely and orderly progress of Work.
PART 2 PRODUCTS
2.1 Not Used .1 Not U sed.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 74 21 Façades and Roofs Restoration CONSTRUCTION DEMOLITION WASTE MANAGEMENT AND DISPOSAL National Capital Commission Page 4
PART 3 EXECUTION
3.1 Application .1 Do Work in compliance with W RW . .2 Handle waste materials not reused, salvaged, or recycled in accordance with appropriate regulations and codes.
3.2 Cleaning .1 Remove tools and waste materials on completion of Work , and leave work area in clean and orderly condition. .2 C lean-up work area as work progresses. .3 Source separate materials to be reused/recycled into specified sort areas.
3.3 Diversion of Materials
.1 From following list, separate materials from general waste stream and stockpile in separate piles or containers, as reviewed by Departmental Representative, and consistent with applicable fire regulations. .1 M ark containers or stockpile areas. .2 Provide instruction on disposal practices. .2 O n-site sale of salvaged, recovered, reusable or recyclable materials is not permitted.
.3 Demolition Waste Material Type Recommended Diversion % Actual Diversion % Metals 100 Rubble 100 Wood (uncontaminated) 100 Other
.4 Construction Waste Material Type Recommended Diversion % Actual Diversion % Cardboard 100 Plastic Pack aging 100 Rubble 100 Steel 100 Wood (uncontaminated) 100 Other
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 74 21 Façades and Roofs Restoration CONSTRUCTION DEMOLITION WASTE MANAGEMENT AND DISPOSAL National Capital Commission Page 5
3.4 Waste Audit (W A) .1 Schedule A - W aste Audit (W A) (1) (2) (3) (4) (5) (6) % (7) % M aterial M aterial Estim ated T otal G eneration R ecycled R eused Category Q uantity W aste Q uantity Point U nit % of W aste (unit) Wood and Plastics Material Description Off-cuts Warped Pallet Form s Plastic Pack aging Cardboard Packaging O ther
Material Description Painted Frames G lass Wood Metal Other
3.5 Waste Reduction Workplan (W RW) .1 Schedule B
(1) (2) (3) (4) Actual (5) Actual (6) Materials Persons Total Reused Recycled Materials Category Responsible Quantity Amount Amount Destination of Waste (units) (units) (un it) Projected Projected Wood and Plastics Material Description Chutes Warped Pallet Form s Plastic Pack aging Cardboard Packaging Other
Material Description Wood Metal Other
3.6 Demolition Waste Audit (D W A) .1 Schedule C - Demolition Waste Audit (D W A)
(1) (2) (3) (4) (5) (6) (7) M aterial Description Q uantity Unit Total Volum e W eight Rem arks and (cum ) (cum ) Assumptions Wood Metal Other
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 74 21 Façades and Roofs Restoration CONSTRUCTION DEMOLITION WASTE MANAGEMENT AND DISPOSAL National Capital Commission Page 6
3.7 Canadian Governmental Departments Chief Responsibility for the Environment .1 Schedule E - G overnment Chief Responsibility for the Environment
Prov ince Add ress G eneral Inq uiries Fax
O ntario M inistry of Environm ent and Energy (416) 323- (416) 323-4682 135 St. C lair Avenue W est 4321 (800) T oronto, O N M4V 1P5 565-4923 Environm ent C anada (416) 734-4494 Toronto, ON
EN D OF SEC TION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 77 00 Façades and Roofs Restoration CLOSEOUT PROCEDURES National Capital Commission Page 1
PAR T 1 G EN ER AL
1.1 Section Includes .1 Administrative procedures preceding preliminary and final inspections of Work.
1.2 R elated Section s
.1 Section 01 78 00 - Closeout Submittals.
1.3 Inspection and Declaration .1 Contractor's Inspection: Contractor and all Subcontractors shall conduct an inspection of Work , identify deficiencies and defects, and repair as required to conform to Contract Documents. .1 Notify N CC Representative in writing of satisfactory completion of Contractor's inspection and that corrections have been made. .2 Request N CC Representative's inspection. .2 N CC Representative's Inspection: NC C Representative and Contractor will perform inspection of Work to identify obvious defects or deficiencies. Contractor shall correct Work accordingly. .3 Completion: submit written certificate that following have been performed: .1 Work has been completed and inspected for compliance with Contract Documents. .2 Defects have been corrected and deficiencies have been completed. .3 Equipment and system s have been tested, adjusted and balanced and are fully operational. .4 Certificates required by Fire Commissioner and utility companies have been submitted. .5 Operation of system s have been demonstrated to NCC Representative's personnel. .6 Work is complete and ready for Final Inspection. .4 Final Inspection: when item s noted above are completed, request final inspection of Work by NCC Representative, and Contractor. If Work is deemed incomplete by NCC Representative, complete outstanding item s and request reinspection.
PART 2 - PRODUCTS
2.1 Not Used .1 Not U sed.
PART3 - EXECUTION
3.1 Not Used
.1 Not U sed.
EN D OF SEC TION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 78 00 Façades and Roofs Restoration CLOSEOUT SUBMITTALS National Capital Commission Page 1
PAR T 1 G EN ER AL
1.1 R elated Section s
.1 Section 01 00 00 - General Requirements.
.2 Section 01 45 00 - Quality Control.
1.2 Submittals .1 Prepare instructions and data using personnel experienced in maintenance and operation of described products. .2 Copy will be returned after final inspection, with NC C Representative's comments. .3 Revise content of documents as required prior to final submittal. .4 Two weeks prior to Interim Certificate of Completion of the Work , submit to the NCC Representative, four final copies of operating and maintenance manuals in English and French. .5 Ensure spare parts, maintenance materials and special tools provided are new, undam aged or defective, and of same quality and manufacture as products provided in Work. .6 If requested, furnish evidence for type, source and quality of products provided. .7 Defective products will be rejected, regardless of previous inspections. Replace products at own expense. .8 Pay costs of transportation.
1.3 Form at .1 Organize data as instructional manual. .2 Binders: vinyl, hard covered, 3 'D ' ring, loose leaf 219 x 279 mm with spine and face pockets. .3 When multiple binders are used correlate data into related consistent groupings. Identify contents of each binder on spine. .4 Cover: identify each binder with type or printed title 'Project Record Documents'; list title of project and identify subject matter of contents. .5 Arrange content by system s, under Section numbers and sequence of T able of Contents. .6 Provide tabbed fly leaf for each separate product and system , with typed description of product and major component parts of equipment. .7 Text: manufacturer's printed data, or typewritten data. .8 Drawings: provide with reinforced punched binder tab. Bind in with text; fold larger drawings to size of text pages.
1.4 C on tents - Each Volume .1 T able of Contents: provide .1 title of project; .2 date of submission, names; .3 addresses, and telephone numbers of Consultant and with name of responsible parties; .4 schedule of products and system s, indexed to [Ccontent ontractor] of volume.[D esign-Builder] with nam e of .2 For eachrespons productible pa orrties; system list names, addresses and telephone numbers of subcontractors and suppliers, including local source of supplies and replacement parts. .3 Product Data: m ark each sheet to identify specific products and component parts, and data applicable to installation; delete inapplicable information. .4 Drawings: supplement product data to illustrate relations of component parts of equipment and system s, to show control and flow diagram s. .5 Typewritten Text: as required to supplement product data. Provide logical sequence of instructions for each procedure, incorporating manufacturer's instructions specified in Section 01 45 00 - Quality Control.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 78 00 Façades and Roofs Restoration CLOSEOUT SUBMITTALS National Capital Commission Page 2
1.5 As-Builts and Samples .1 In addition to requirements in General Conditions, maintain at site for NCC Representative one record copy of: .1 Contract Drawings. .2 Specifications. .3 Addenda. .4 Change Orders and other modifications to Contract. .5 Reviewed shop drawings, product data, and samples. .6 Field test records. .7 Inspection certificates. .8 Manufacturer's certificates. .2 Store record documents and samples in field office apart from documents used for construction. Provide files, racks, and secure storage. .3 Label record documents and file in accordance with Section number listings in List of Contents of this Project Manual. Label each document "PR O JEC T R EC O R D " in neat, large, printed letters. .4 Maintain record documents in clean, dry and legible condition. Do not use record documents for construction purposes. .5 Keep record documents and samples available for inspection by NCC Representative.
1.6 Recording Actual Site Condition s .1 Record information on set of black line opaque drawings and in copy of Project Manual provided by NCC Representative. .2 Provide felt tip marking pens, maintaining separate colours for each major system , for recording information. .3 Record information concurrently with construction progress. Do not conceal Work until required information is recorded. .4 Contract Drawings and shop drawings: legibly and neatly m ark each item to record actual construction, including: .1 Measured locations of utilities and appurtenances, referenced to visible and accessible features of construction. .2 Field changes of dimension and detail. .3 Changes made by change orders. .4 Details not on original Contract Drawings. .5 References to related shop drawings and modifications. .5 Specifications: legibly and neatly m ark each item to record actual construction, including: .1 Manufacturer, trade name, and catalogue number of each product actually installed, particularly optional item s and substitute item s. .2 Changes made by Addenda and change orders.
1.7 Spare Parts .1 Provide spare parts, in quantities specified in individual specification sections. .2 Provide item s of same manufacture and quality as item s in Work. .3 Deliver to location as directed; place and store. .4 Receive and catalogue item s. Submit inventory listing to NCC Representative. Include approved listings in Maintenance Manual. .5 Obtain receipt for delivered products and submit prior to final payment.
1.8 Warranties and B on ds .1 Assemble approved information in binder and submit upon acceptance of work. Organize binder as follows: .1 Separate each warranty or bond with index tab sheets keyed to T able of Contents listing. .2 List subcontractor, supplier, and manufacturer, with name, address, and telephone number of responsible principal.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 01 78 00 Façades and Roofs Restoration CLOSEOUT SUBMITTALS National Capital Commission Page 3
.3 Obtain warranties and bonds, executed in duplicate by subcontractors, suppliers, and manufacturers, within ten days after completion of applicable item of work. .4 Verify that documents are in proper form, contain full information, and are notarized. .5 C o-execute submittals when required. .6 Retain warranties and bonds until time specified for submittal. .2 Except for item s put into use with NC C Representative's permission, leave date of beginning of time of warranty until D ate of Substantial Performance is determined.
PART 2 PRODUCTS
2.1 Not Used
.1 Not U sed.
PART 3 EXECUTION
3.1 Not Used
.1 Not U sed.
EN D OF SEC TION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 02 41 19 Façades and Roofs Restoration SELECTIVE DEMOLITION National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Documents
.1 Drawings and general provisions of the Contract and Division 1 Specification Sections, apply to this Section.
1.2 Summary of Work
.1 Work Included: The work of this Section includes the provision of all labour, materials, equipment and services required to selectively demolish limited parts of the existing buildings in areas where reconstruction of portions of the facade is required, as indicated on the drawings, as specified herein and as required for a complete project.
.2 Related Sections: .1 Section 04 03 07 - Masonry Reinstallation and Repointing.
1.3 References
.1 Canadian Federal Legislation: .1 Canadian Environmental Protection Act (CEPA), 1998. .2 Canadian Environmental Assessment Act (CEAA), 1995. .3 Transportation of Dangerous Goods Act (TDGA), 1992. .4 Motor Vehicle Safety Act (MVSA), 1995.
.2 Canadian Standards Association (CSA): .1 CSA-S350-M1980(R2003), Code of Practice for Safety in Demolition of Structures.
1.4 Existing Conditions
.1 The Bid price for demolition of the structure is to be based on its condition at the time of examination prior to bidding.
.2 Should material resembling spray or trowel applied asbestos or any other designated substance which is not referenced in the hazardous materials assessment report be encountered in the course of demolition, stop work, take preventative measures, and notify the NCC Representative immediately. Do not proceed until written instructions have been received.
1.5 Protection
.1 If the safety of the building structure or services designated to remain appears to be endangered, take preventative measures and then cease operations and notify the NCC Representative.
.2 Provide temporary weather protection to building structure exposed by the demolition work as necessary and as directed by the NCC Representative.
.3 Perform all work in accordance with Sections 01 35 30 "Health and Safety Procedures".
DFS Inc. architecture & design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 02 41 19 Façades and Roofs Restoration SELECTIVE DEMOLITION National Capital Commission Page 2
.4 Prevent debris from blocking the surface drainage system or contaminating the well.
.5 Ensure that demolition work does not adversely affect adjacent watercourses, groundwater and wildlife, or contribute to excess air and noise pollution.
.6 Fires and burning of waste or materials is not permitted on site.
.7 Do not bury waste or materials on site except with the prior written approval of the NCC Representative.
.8 Do not dispose of waste or volatile materials such as: mineral spirits, oil, petroleum based lubricants, or toxic cleaning solutions into watercourses, storm or sanitary sewers. Ensure proper disposal procedures are maintained throughout project.
.9 Do not pump water containing suspended materials into watercourses, storm or sanitary sewers, or onto adjacent properties.
.10 Control disposal or runoff of water containing suspended materials or other harmful substances to the NCC Representative's satisfaction.
.11 Take all necessary precautions to prevent extraneous materials from contaminating air beyond application area.
.12 Cover or wet down dry materials and waste to prevent blowing dust and debris.
1.6 Regulatory Requirements
.1 Ensure work is performed in compliance with CEPA, CEAA, TDGA, MVSA and all applicable provincial regulations.
PART 2 PRODUCTS
2.1 Not used.
.1 Not used.
PART 3 EXECUTION
3.1 Preparation
.1 Disconnect electrical and telephone service lines that extend into the exterior walls in the areas to be demolished. .1 Provide the NCC Representative with minimum 48 hours notice of any necessary interruption of services. Keep such interruptions to a minimum and schedule them at times acceptable to the NCC Representative.
DFS Inc. architecture & design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 02 41 19 Façades and Roofs Restoration SELECTIVE DEMOLITION National Capital Commission Page 3
.2 Post warning signs on electrical lines and equipment which must remain energized during period of demolition.
.2 Remove rodents and vermin as required by the NCC Representative.
3.2 Safety Code
.1 Do demolition work in accordance with CSA S350.
3.3 Electrical Demolition
.1 Remove and store for re-installation electrical equipment, wiring devices, light fixtures, wire and conduit, etc. which will be affected by the work.
3.4 Selective Demolition
.1 Carry out selective demolition work progressively with the new work to minimize the exposure of the structure to weather.
.2 Demolish selected portions of the exterior wall and remove individual masonry units as indicated and as directed by the NCC Representative.
.3 At the end of each day's work, leave the work in a safe and stable condition.
.4 Demolish to minimize dusting. Keep materials wetted as directed by the NCC Representative.
.5 Take care to protect removed masonry units from damage. Remove old mortar, clean and carefully stockpile for inspection by the NCC Representative and reinstallation by Section 04 03 07 "Masonry Reinstallation and Repointing". Do not discard any units without the NCC Representative's approval.
.6 For stone units of specific configurations, record their original locations on a set of drawings set aside for the purpose and mark each unit with a corresponding reference number on a face that will be concealed in the final assembly.
.7 Remove and dispose of demolished materials which are not designated for re-use in the new construction, in accordance with the requirements of the authorities having jurisdiction.
.8 Environmental: Remove contaminated or dangerous materials as defined by authorities having jurisdiction relating to environmental protection, from site and dispose of in a safe manner to minimize danger at site or during disposal.
.9 Use natural lighting to work by wherever possible. Shut off all lighting except those required for security purposes at the end of each day.
END OF SECTION
DFS Inc. architecture & design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 06 Façades and Roofs Restoration HERITAGE – CLEANING OF HISTORIC MASONRY National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Sections
.1 Section 04 03 07 - Heritage - Masonry Repointing and Repair.
.2 Section 04 05 00 - Common Work Results for Masonry.
1.2 References
.1 Health Canada/Workplace Hazardous Materials Information System (WHMIS) .1 Material Safety Data Sheets (MSDS).
.2 Federal Legislation .1 Canadian Environmental Assessment Act (CEAA), 1995, c. 37. .2 Canadian Environmental Protection Act (CEPA), 1999, c. 33. .3 Transportation of Dangerous Goods Act (TDGA), 1992, c. 34.
.3 Health Canada / Workplace Hazardous Materials Information System (WHMIS): .1 Material Safety Data Sheets (MSDS).
.4 Mine Safety and Health Administration/National Institute for Occupational Safety and Health (MSHA/NIOSH) Standards
1.3 Performance Requirements
.1 Clean all stone masonry surfaces in contract area, to remove surface soiling present on stone surface after completion of repointing, to restore stone as much as is feasible to its original appearance.
.2 The intention is not to restore the original appearance of the stone but to remove an average of 50% of the thickness of the surface soiling from all stone masonry surfaces except in locations where more extensive cleaning is indicated.
.3 Clean stones for purposes of removing stains and black soiling without damaging the surface of the stone either physically or chemically.
1.4 Submittals
.1 Make the required submittals in accordance with Section 04 05 00 - Common Work Results for Masonry.
.2 Submit two copies of WHMIS MSDS Material Safety Data Sheets in accordance with Section 01 35 29 - Health and Safety Requirements for cleaning materials. Indicate VOC content.
.3 Submit details of proposed protection methods.
.4 Submit schedule of cleaning work. Include interfacing of schedule with cleaning of masonry required in other sections.
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.5 Test Results: Submit two copies of test results describing cleaning methods used for cleaning of each test patch
1.5 Samples
.1 Demonstrate machinery, tools and nozzles for approval by the NCC Representative.
.2 Submit samples of each cleaning material for approval by the NCC Representative.
1.6 Quality Assurance
.1 Refer to Section 04 05 00 - Common Work Results for Masonry.
.2 Regulatory Requirements: ensure work is performed in compliance with CEPA, CEAA, TDGA, and applicable Provincial regulations.
.3 Submit test results in accordance with Section 01 33 00 - Submittal Procedures.
.4 Submit 2 copies of test results describing cleaning method, water pressure at compressor, tools, nozzle size, dwell time, pressure, angle of the nozzle during cleaning, media type, media size (aggregate) and distance from masonry surface, used for cleaning of each test patch.
.5 Proceed with cleaning upon written approval by NCC Representative concerning tested cleaning methods.
.6 Tests shall be repeated at no additional cost until satisfactory results are achieved. Assume each test will need to be repeated minimum 4 times.
.7 Record existing conditions, using photographs or video tape, before and after cleaning. Advise NCC Representative of potential cleaning problems.
1.7 Mock-Ups
.1 General: .1 Do mock-up tests in accordance with Section 01 45 00 - Quality Control and Section 04 05 00 - Common Work Results for Masonry. .2 The location of the test patches will be identified by NCC Representative once the scaffolding system is in place. .3 Allow for 10 cleaning test patches for the Black Atmospheric Soiling cleaning for each type of stones (including the chemical cleaning at the upper weathering course) .4 Allow for 6 test patches for each other type of cleaning specified herein and for each type of stones. .5 Allow for 1.5 m2 test patch for each type of cleaning specified herein and 2m 2 for Black Atmospheric Soiling Cleaning. .6 Notify NCC Representative 2 weeks before commencing cleaning of each test patch. Obtain approval from NCC Representative before commencing test. .7 Conduct tests on building to determine effectiveness of low pressure wash cleaning methods.
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.8 Determine effect of cleaning operations on surrounding historic material and plants. .9 Stop work when cleaning has detrimental effect on surrounding material and plants. .10 Proceed with cleaning after written instructions are received from the NCC Representative. .11 Protect masonry openings from water/chemical infiltration during cleaning. .12 Collect, neutralize and dispose of water and chemicals in accordance with contract requirements, applicable regulations and Canadian Environmental Protection Act, (CEPA). .13 Allow for cleaning tests of 1.0 m² of each type of cleaning method on areas of Epoxy removal, for approval before proceeding to final cleaning.
.2 Conduct test to determine effectiveness of 158.6 kPa water pressure, 4 hour time period. Under the direction of the Masonry Conservator conduct further tests at various water pressures, dwell time, concentration, nozzle types and spraying distances from wall surface until satisfactory results are achieved and approved by the NCC Representative .3 Test pressure at each storey height determines effect of "line drop" on effectiveness of water jets.
.4 Test brushing and spraying as an alternative to pressure washing. Consult NCC Representative to review test results. Use method approved by NCC Representative.
.5 Test rust removal methods to establish effective poultice formulations and dwell times.
.6 Test micro-abrasive cleaning methods. Conduct low-pressure tests, starting at 158 kPa, to determine methods and procedures to be used. Under the direction of the Masonry Conservator conduct further tests at various pressures, media type, dwell time, concentration, nozzle types and spraying distances from wall surface until satisfactory results are achieved and approved by the NCC Representative.
.7 Test a variety of black atmospheric soiling removal methods to establish effective methods and to determine the degree of cleaning to be done.
.8 Test a variety of pigeon dirt removal methods as specified in PART 3 - EXECUTION, to establish the most effective method.
.9 For other cleaning methods, prepare mock-ups as prescribed under PART 3 - EXECUTION.
1.8 Delivery, Storage and Handling
.1 Deliver, store and handle materials in accordance with Section 01 61 00 - Common Product Requirements and Section 04 05 00 - Common Work Results for Masonry.
1.9 Ambient Conditions
.1 Do not use wet cleaning methods when there is threat of frost.
.2 Do not use chemical cleaners when ambient temperature or surface temperature of materials is below 15 oC.
.3 Provide shading to wall to avoid cleaning in full, hot sunlight.
.4 Do not clean if there is risk of chemicals spray being blown onto publicly accessible areas or if other materials will be damaged by the cleaning process.
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.5 Collect and dispose of used cleaning materials and products which accumulate in the area of the Work. Prevent run off and absorption of water, chemicals or abrasives into masonry or soil below the cleaning area.
.6 Collection and disposal system to be to the approval of the NCC Representative.
.7 Comply with the requirements of Workplace Hazardous Materials Information System (WHMIS) regarding use, handling, storage and disposal of hazardous material; and regarding labelling and the provision of Material Safety Data Sheets.
.8 Provide protection (dust, rain, and other elements) of the masonry and stone units after wet cleaning.
1.10 Work Sequence
.1 Complete work within approved schedule time. Do not change Schedule without the written approval of the NCC Representative.
.2 Co-ordinate the cleaning work schedule with other work on site.
.3 Perform cleaning following completion of replacement of stone and backpointing, and prior to carrying out stone refacing treatments, surface consolidant treatments and mortar refacing treatments. Sequence subsequent applications to the approval of the NCC Representative.
.4 Allow the period of curing specified in the applicable sections prior to all cleaning operations.
.5 Ensure that the pH is neutral in the stones within the recessed areas following the post ·chemical water wash. Contractor to submit a methodology to verify a neutral pH to the Departemental Representative for approval prior the commencement of the work.
1.11 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction/Demolition Waste Management and Disposal and Section 04 05 00 - Common Work Results for Masonry.
PART 2 PRODUCTS
2.1 Materials
.1 Water: clean potable water free from contaminants. Treat water having high metal content before use in cleaning.
.2 Air: free from oil or other contaminants.
.3 Masking material: to approval of NCC Representative.
.4 Surfactant (detergent): non-ionic, type suitable for use on masonry.
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.5 Solvents: toluene, xylene, acetone, methyl ethyl ketone.
.6 Asphalt and tar remover:
.7 Paint Strippers: .1 Gel form, with active ingredient Methylene Dichloride: .2 Stripper systems:
.8 Ethylene diamine tetra-acetic acid (EDTA) formulated for use as a ferric oxide (rust) removal agent.
.9 Attapulgite or Diatomaceous clay (Fullers Earth): for use as poultice medium.
.10 Glass abrasive for micro-abrasive cleaning.
.11 Acid solution cleaning products: Acceptable material to be approved by NCC Representative only.
.12 Alkaline solution cleaning products based on sodium hydroxide. Acceptable material to be approved by NCC Representative only.
2.2 Tools and Equipment
.1 Use only brushes with natural or soft plastic bristles.
.2 Use only scrapers of wood, or plastic.
.3 Use water pumps fitted with accurate pressure regulators and gauges capable of being preset and locked at maximum specified levels. Water pumps to have rating of 0.3 kPa.
.4 Use air compressors equipped with on-line oil filters to avoid spraying oil onto masonry.
.5 Use gun equipped with pressure gauge at nozzle end.
.6 Use plastic or non-ferrous metal piping and fittings.
.7 Use nozzles that give nebulized droplet spray. Use nozzles with 12 mm opening.
.8 Buckets.
.9 Colourfast sponges resistant to solvents and chemicals.
.10 4 ml polyethylene sheeting.
.11 Small wedges.
.12 Micro-abrasive cleaning of general wall surfaces: Micro-abrasive low pressure cleaning system, capable of delivery 30-100 micron dry abrasive through a 2 mm vortex nozzle at maintainable pressures of 140 - 160 kPa. .1 Acceptable equipment: .1 JOS system.
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.2 Alternative equipment: Approved by addendum in accordance with Instructions to Tenderers.
.13 Micro-abrasive cleaning of sculpted wall surfaces: Micro-abrasive low pressure cleaning system, capable of delivery of 100 micron aggregate through a pencil nozzle of 1 mm orifice at maintainable pressures of 70 - 275 kPa. .1 Acceptable equipment: COMCO micro-abrasive system. .2 Alternative equipment: Approved by addendum in accordance with Instructions to Tenderers.
.14 Heavy duty electric heat gun. Heat generated from electric coils. No open flame.
.15 Vacuum Cleaner designed for industrial use, Hepa type.
PART 3 EXECUTION
3.1 Site Verification of Conditions
.1 Report to NCC Representative conditions of deteriorated masonry or pointing not noted on Contract Drawings found before and during cleaning.
.2 Obtain written approval of NCC Representative before cleaning areas of deteriorated masonry.
3.2 Preparation
.1 Place safety devices and signs near work areas as indicated and directed.
.2 Seal or repair openings and joints where there is potential risk of water/chemical infiltration.
.3 Cover surfaces not to be cleaned.
.4 Dry brush or scrape accumulations from walls, ledges and cornices.
.5 Cover and protect surfaces and non-masonry finishes in areas to be cleaned.
.6 Chemical cleaning or micro-abrasive cleaning must be carried out before repointing work begins.
3.3 Protection
.1 Mask or seal vents, windows, and other openings, to prevent water entry or entry of air contaminated with chemical fumes.
.2 Mask materials, including wood, class and metal, adjacent to treatment areas.
.3 Protect plants, gardens, shrubs from excessive watering and chemicals.
.4 Ensure workers wear eye, head, and face protection, and protective gloves, coveralls, boots and filter mask to MSHA/NIOSH standard.
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.5 Protect cleaned surfaces which are to be painted from contact with rain and snow.
.6 Protect rainwater leaders, eaves troughs and gutters from being blocked by residue.
.7 Protect finished Work from damage until take-over.
.8 Protect adjacent Work from spread of dust and dirt beyond work areas.
.9 Protect operatives and other site personnel from hazards.
.10 Maintain scaffolding protection and heating after wet cleaning for a period of 10 days to allow the stone dry sufficiently before being exposed.
3.4 Execution of Cleaning
.1 Moderate Pressure Water Cleaning: .1 Pre-wet masonry surface when necessary. Work from top of wall downwards. .2 Avoid prolonged wetting and excessive water penetration. .3 Do not exceed maximum pressure at nozzle or have nozzle closer to masonry than approved by the NCC Representative at tests.
.2 Use brushing and scraping only to supplement water washing.
.3 Soften and loosen heavy deposits with prolonged water spray, then brush. Remove thick incrustations with wooden or plastic scrapers.
.4 Ensure masonry is cleaned after removal of scaffolding to eliminate possible staining on stone from tie-backs.
.5 Ensure finish pointing mortar is sufficiently cured prior to final cleaning. Any mortar joints damaged during final cleaning must be raked out, and finish pointing reinstalled.
3.5 Cleaning of Black Atmospheric Soiling on Surface of Stone
.1 The overall intent of masonry cleaning is to clean only as necessary without damaging the stones in order to halt deterioration.
.2 For pricing purpose, allow for 50% cleaning of the thickness of the surface soiling on all masonry surfaces of the tower, including the low walls and the lamp posts at the Privy Council Entrance. Micro abrasive systems will be use for that type of cleaning.
.3 Methods, procedures, materials will be established early on in the project schedule following a period of mock-ups in the presence of the NCC Representative. The accepted level of cleaning to the surface of the stones using micro abrasive systems and chemicals will be determined by the NCC Representative.
3.6 Cleaning of Bird Soiling and Staining
.1 No single method will remove this soiling; however, the Contractor shall provide the means and
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equipment to clean difficult stains as may be necessary.
.2 Remove all thick deposits with non-ferrous trowels and remove from work site immediately.
.3 Carry out trial cleans using wet poultices of solvents mixed with diatomaceous clay and/or methylene dichloride based stripper. Leave on surface for 2 hours, covered to prevent drying. Remove. Vigorously scrub surface of stone with stiff bristle brush while blotting softened dirt with cotton rags soaked in the chemical. If method is successful, continue on remainder of affected surface.
.4 Should chemical removal of pigeon-related soiling fail to work sufficiently, carry out trial cleaning using a low pressure micro-abrasive cleaning system. Should method be successful, continue cleaning affected areas to approved level of cleanliness. Over-cleaning and damage to stone must be avoided.
3.7 Removal of Bitumen and Tars
.1 Scrape and remove thick deposits with a scraper of wood or high density plastic. Assist this dry removal using CO 2 freezing of surface if necessary and according to instructions given by the NCC Representative.
.2 Apply poultice of proprietary tar removal product.
.2 Take appropriate care to strictly maintain the tar to the affected area. Do not let the stain transfer or bleed to other areas of the masonry.
3.8 Paint and/or Caulking Removal
.1 Mechanical removal of paint and/or caulking will precede that of chemical removal.
.2 Scrape surfaces with non-ferric scrapers to remove loose paint and/or caulking.
.3 Beyond scraping of loose paint and/or caulking, a number of mock-ups using any of the following procedures and materials under the directions and supervision of the NCC Representative will be carried out, with the aim of determining the best method and procedure to remove the paint and/or caulking without causing damage to the stones. .1 Carry out a mock-up using a heat gun and scraper to determine the effectiveness of this method. .2 Carry out a mock-up using Methylene Dichloride based Paint Stripper in gel form. .1 Work surface must be between 20 oC and 25 oC. .2 Apply paint stripper liberally to surface of paint and/or caulking. .3 Cover with plastic sheeting to avoid evaporation. .4 Leave in contact for up to 30 minutes, making sure that surface is agitated frequently with a stiff brush, and the paint stripper is generously spread over the surface throughout the dwell time. .5 Dwell time will be determined by calculating the maximum effect of the chemical within a given time. This will be determined by the NCC Representative. .6 Scrape all loosened paint and/or caulking and discard immediately following all Government Regulations for handling and disposal. .7 Repeat procedure until natural surface of the stone is exposed. .8 Rinse and scrub by hand with hot water. .9 When surface is completely dry, approximately 4 days after rinsing, remove final traces of
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paint and staining with low-pressure micro-abrasive. .10 Confine all dust from micro-abrasive cleaning to the working area, vacuum and discard from site.
.3 Carry out mock-ups using Paint Removal systems such as Peel-Away 6. .1 When surface is completely dry, approximately 4 days after rinsing, remove final traces of paint and staining with low pressure micro-abrasive. .2 Retain all dust from micro-abrasive cleaning to working area, vacuum and discard from site.
.4 Install air extraction and filter system for all chemical procedures described above where chemical fumes are emitted, and maintain throughout work once the prescribed method to remove paint and/or caulking is determined by NCC Representative. .1 Fumes originating from any of the paint removing procedures will not be tolerated and must be extracted and filtered at the contained location of work. .2 The Contractor must prove the effectiveness of the extraction system by carrying out air quality tests on a daily basis. .3 Failure to provide adequate extraction and filtering equipment will lead to an immediate demand from the NCC Representative to stop work until the problem is corrected and at no extra cost to the Governement of Canada for delays or equipment improvement.
3.9 Micro Abrasive Cleaning
.1 Conduct localized low pressure micro-abrasive cleaning/resurfacing for stone repaired with dutchmen and stone plugs, new stone surfaces, and where indicated, using specified equipment and materials, and methods in accordance with the approved mock-up.
.2 Equip workers with protective respiratory equipment to protect against dust particles and hazardous air pollutants.
.3 Where feasible, treat new stones in the shop prior to installation.
.4 For the treatment of stones in situ, provide tarped enclosures to prevent the spread of dust particles and hazardous air pollutants beyond the application area.
.5 Upon completion, thoroughly vacuum the treated surfaces and adjacent surfaces to remove residual dust. Ensure that the pores of the stone are free from residual dust. Rinse with water if necessary.
3.10 Ferric Oxide (Rust) Stain Removal
.1 The level of cleaning targeted for iron oxide staining is 80%.
.2 Prepare poultices using EDTA mixed in diatomaceous clay.
.3 Chemical preparations shall be approved by the Masonry Conservator.
.4 Dwell times and the effectiveness of the various poultices will be determined through mock-ups which are approved by the Masonry Conservator and the NCC Representative.
.5 Provide low pressure micro-abrasive cleaning to provide final touch-up to the cleaned areas where
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directed by the NCC Representative.
.6 Apply to all wall areas requiring ferric oxide cleaning.
3.11 Surfactant Cleaning
.1 The following method will be used to clean all light or loosely bonded forms of soiling.
.2 Dry brush with stiff bristle brush all surfaces to remove accumulated loose dirt, suctioning the dirt with a vacuum as it loosens.
.3 Provide protection, troughs and all installations necessary to ensure cleaning solution does not spill, drip or in any other way make contact with adjacent wall or floor surfaces not included in this intervention.
.4 Liberally wet the surface of the soiled stones with the surfactant and warm water solution, temperature 37 oC to 43 oC. Concentrations of the surfactant and water solution will be determined by the NCC Representative.
.5 Brush aggressively by hand using a stiff bristle brush. Do not allow to dry. Work on maximum surface areas which are manageable any one time. Brushes must be of various shapes and sizes to allow easy and certain contact with all shaped surfaces of the stones being cleaned.
.6 Discard surfactant solution as soon as it becomes dirty and replace with fresh solution.
.7 Once surface is clean and to the satisfaction of the NCC Representative, rinse the surface of the cleaned stones by applying liberally with hot water keeping certain to collect all spillage of the rinse water.
.8 Any damage of adjacent wall surfaces such as mortars, glass, plaster, wood, will be replaced or repaired to the NCC Representative's satisfaction at the expense of the Contractor.
3.12 Removal of Salts from Stone and Wall Surfaces Using Clay Poultices
.1 Brush and vacuum all loose salt efflorescence from the affected surface of stones.
.2 Soak the affected stone units by wetting with intermittent water misting. .1 Thorough soaking of the stones is necessary for poultice removal of damaging soluble salts. .2 Intermittent misting to ensure thorough and effective soaking must be carried out over a period of 12 hours prior to applying the clay poultice. .3 Trap all water runoff for this intervention in troughs so as to ensure wetting and rinsing water is contained to the work surface only.
.3 Mix diatomaceous clay in a bucket with sufficient amount of potable water to create a wet but cohesive consistency. The NCC Representative will determine the correct consistency for the clay poultice mixture.
.4 Apply clay poultice to the affected surface of wall to a thickness of 6 mm.
.5 Cover with polyethylene for 24 hours, remove and allow poultice to dry at a controlled atmospheric temperature between 18 oC and 24 oC and a relative humidity of 65%.
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.6 When the poultice has thoroughly dried after approximately 7 days, remove the poultice by scraping with wooden scrapers directly into disposable bags and remove from site.
.7 Brush and vacuum the surface thoroughly.
.8 Rinse with a low-pressure water rinse.
.9 Allow wall area to wait 3 days before repeating the procedures, maintaining temperature between 18 oC and 24 oC and humidity at 65% during this waiting period.
.10 Repeat procedure above for a minimum of 3 times, or as requested by the NCC Representative.
3.13 Removal of organic growth
.1 Apply proprietary solution of quaternary ammonium-based biocide in accordance with manufacturer's written instructions, using hand-held spray applicator.
.2 Apply flood coat. Penetrate masonry surface.
.3 Mask and protect adjacent masonry during application.
.4 Re-perform removal procedure as necessary.
3.14 Clean-Up
.1 Rinse off masonry to the satisfaction of the NCC Representative.
.2 Rinse from bottom to top and from top to bottom.
.3 Upon completion, check the pH levels of stone where chemicals have been used during the cleaning process. If pH levels are not neutral, flush with water. Continue flushing as necessary until pH level of wall surface achieves a neutral pH value of 7 to 8.5.
.4 Collect and dispose of cleaning materials and clean up work area as work progresses.
.5 Collect and dispose of chemicals and hazardous waste in accordance with applicable hazardous waste legislation.
.6 Carefully scrape residue into plastic bags and remove. Remove and dispose of droppings.
.7 Upon completion, clean and restore areas used for work to condition at least equal to that previously existing.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 07 Façades and Roofs Restoration HERITAGE – MASONRY REPOINTING AND REPAIR National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Sections
.1 Section 04 03 06 - Heritage - Cleaning Historic Masonry.
.2 Section 04 03 08 - Heritage - Mortaring.
.3 Section 04 03 41 - Heritage - Repair of Stone.
.4 Section 04 03 42 - Heritage - Replacement of Stone.
.5 Section 04 05 00 - Common Work Results for Masonry.
1.2 References
.1 American Society for Testing and Materials (ASTM) .1 ASTM A276-08a, Standard Specification for Stainless Steel Bars and Shapes.
.2 Canadian Standards Association (CSA) .1 CSA A23.1-04/A23.2-04, Construction Materials and Methods of Concrete Construction. .2 CSA-A371-04, Masonry Construction for Buildings.
.3 Health Canada / Workplace Hazardous Materials Information System (WHMIS): .1 Material Safety Data Sheets (MSDS).
1.3 Submittals
.1 Submit documents and samples in accordance with Section 04 05 00 - Common Work Results for Masonry.
.2 Submit two copies of WHMIS MSDS Material Safety Data Sheets in accordance with Section 01 35 29 - Health and Safety Requirements for materials used for the work of this Section. Indicate VOC content.
1.4 Quality Assurance
.1 Refer to Section 04 05 00 - Common Work Results for Masonry.
1.5 Mock-Ups
.1 Construct mock-up in accordance with Section 01 45 00 - Quality Control and Section 04 05 00 - Common Work Results for Masonry.
1.6 Delivery, Storage and Handling
.1 Store cementitious materials and aggregates in accordance with CSA A23.1.
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.2 Store lime putty in plastic lined sealed drums.
.3 Ensure that manufacturer's labels and seals are intact upon delivery. .4 Remove rejected or contaminated material from site.
1.7 Protection
.1 At end of each working day, cover unprotected work with waterproof membranes. Membranes should extend to 0.5 m over surface area of work and be tightly installed to prevent finished work from drying out too rapidly.
.2 Protect adjacent finished work against damage which may be caused by on-going work.
.3 All methods of enclosure and protection shall be to the approval of the NCC Representative.
.4 Newly laid mortar shall be protected from excessive exposure to rain and full sunlight for a period of 28 days or until the surface is fully cured.
.5 Provide and maintain protection for masonry walls at all times when work is suspended to prevent water from entering partially repointed masonry.
.6 Protection shall consist of 6 mm polyethylene sheets, tarpaulins or burlap, secured to prevent lifting during windy conditions or storms.
.7 Provide protection boards to exposed corners and all openings such as doors and windows that could be damaged by construction activities. Maintain protection for the duration of operations. Remove and dispose of protective materials as directed by the NCC Representative.
1.8 Environmental Requirements
.1 Comply with the requirements of Workplace Hazardous Materials Information System (WHMIS) regarding use, handling, storage and disposal of hazardous material; and regarding labelling and the provision of Material Safety Data Sheets.
.2 When temperature is 10 oC or less: .1 Store cements and sands for immediate use within heated enclosure. Allow these materials to reach minimum temperature of 12 oC. .2 Heat water to minimum of 20 oC and maximum of 25 oC: .1 At time of use, temperature of mortar to be minimum of 12 oC and maximum of 30 oC.
.3 Protection requirements are specified in Section 04 05 00 - Common Work Results for Masonry.
.4 Obtain approval from NCC Representative for methods of enclosure and protection.
1.9 Waste Management and Disposal
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.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction/Demolition Waste Management and Disposal and Section 04 05 10 - Common Work Results for Masonry.
PART 2 PRODUCTS
2.1 Materials
.1 Mortar and grout materials: to Section 04 03 08 - Heritage - Mortaring.
2.2 Coloured Lime Mortar
.1 Coloured lime mortar: to Section 04 03 08 - Heritage - Mortaring.
2.3 Grout Injection
.1 Grout masonry in accordance with CSA-S304.1, CSA-A371 and CSA-A179, ASTM C348 and ASTM C940; control water content to conform to CSA A179, Clause 4.2.1.2 o Clause 4.3.1.5,
2.4 Temporary Shim
.1 High density plastic temporary shim with appropriate thickness for stone setting and/or where raking/ cleanout operations may loosen stone units.
PART 3 EXECUTION
3.1 Site verification of conditions
.1 Report in writing, to NCC Representative unexpected areas of deteriorated masonry revealed during work (ex. deteriorated substrate). Obtain NCC Representative approval and instructions of repair and replacement of masonry units before proceeding with repair work.
.2 Obtain written approval of NCC Representative prior the commencement of the following operations: - Once the raking out of mortar joints and preparation are completed; - Prior the grouting; - Prior the backpointing; - Prior the front pointing and/or repointing.
3.2 General
.1 Perform work in accordance with CSA-A371. Extent of raking out and repointing is as noted on the Drawings.
.2 Use manual raking tool to remove deteriorated mortar and ensure that no masonry units are chipped/altered/damaged by work to remove mortar, unless otherwise specified. Tools for cutting out must be narrower than the joint; procure and use dove-tailed tipped chisels.
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.3 Tool and compact using jointing tool to force mortar into joint.
.4 Finish joints as approved after mock-ups; except where specified otherwise.
.5 Use suitable and pre-approved jointing tools to place and form mortar in joints.
3.3 Repointing
.1 Raking joints: .1 Rake out all joints. .2 Rake unsound joints free of deteriorated and loose mortar, dirt and other undesirable material. .3 All cutting out of joints is to be done with hammer and chisel, unless otherwise specified. Damage masonry units adjacent to joints will not be tolerated. The use of rotary grinders is not acceptable, unless demonstrated to the NCC Representative to be harmless to stone and of real benefit to assisting with joint removal. .4 Where grinders are deemed appropriate by the NCC Representative to remove existing mortar, proceed as follows: .1 Grind the centre of the joint only, to a maximum depth that is equal to half of the joint width. Mortar must remain on each side of the cut. The grinders must not touch the stone. Joints whose widths are less than 6 mm must be "relief" cut using specialty rotary grinding tools equipped with a diamond cutting blade of small diameter (86 mm). .1 Alternative Equipment: Approved by addendum in accordance with Instructions to Tenderers. .2 For vertical joints, and discontinuous horizontal joints, stop sawcut 50 to 75 mm from end of joint. Do not cut into stone. .3 The Contractor must notify the NCC Representative to inspect the grinding, prior to removing the remaining mortar with hand tools. .4 The remaining mortar must be removed using hand tools. .5 Permission to use power tools will be based on the Contractor's ability to comply with the above conditions, in the mock-up. .1 Only one mason will be appointed to the work of cutting mortar from joints with a grinder, and only after complete satisfaction of his/her work has been proven by demonstration. Notification must be given well in advance of any intention of the Contractor to change this appointed mason for another. .6 If the Contractor is found not to comply with these requirements, he will be required to remove all mortar using hand tools (non-powered), at no extra cost will be charge.
.5 Clean joints to full depth of deteriorated mortar but in no case to less than 25 mm. Note that voids in vertical joints can reach as deep as 250 mm. Clean all voided joints and cavities of loose material voids as they are encountered. Fabricate tools, as necessary, to suit the execution of a specific problem as it is encountered in order to insure the all debris and loose mortar particles are removed. .6 Clean by compressed air, surfaces of joints without damaging texture of exposed joints. .7 Flush open joints and voids; clean open joints and voids with low pressure water and compressed air to remove all debris and dust. .8 Fine joints (less than 4 mm) need not be raked out more than 10 mm, in order to reduce the danger of chipping the masonry edges. When saw cutting vertical joints, stop sawcut 50 to 75 mm from end of joint and finish by hand in order to avoid cutting into adjacent stonework. .9 Any stone damaged as a result of careless raking, or saw cutting, shall be replaced at no cost to the NCC Representative.
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.10 In no area can the joints be raked for more than four levels of scaffold in height, prior to backpointing, unless approved by the NCC Representative. .11 Temporary shims to be installed where raking and cleanout activities cause a stone unit to become loose. .12 After the raking/cleanout activities are complete but prior the commencement of back pointing, the NCC Representative will conduct an assessment of stone repair requirements and will make the necessary adjustments to stone repair designations according to the specified quantity allowances on the drawings.
.2 Backpointing: .1 Where cut out joints are deeper than minimum raking out depths specified, backpoint joints to bring mortar face to specified depth for raked out joints, in preparation for finish pointing. Where voids exist that conventional backpointing cannot fill, most often met at perpendicular joints, notify NCC Representative. In such instances, the following work shall be carried out: .1 Place backpointing to reach a depth of 100 mm. When mortar is firm, rake to prepare depth of backpointing such that 25 mm at face is empty for frontpointing. .2 Drill holes in top of joint to receive a 6 mm grout tube. Insert tube and seal with cloth. Inject grout under low pressure into deep cavity such that the full voided interior space around the stone unit is positively filled. .3 Allow grout to firm up and thoroughly clean and rinse any grout spills from surface of stone such that staining is prevented. .4 Allow grout to thoroughly cure and humidity in wall to dry before proceeding with frontpointing. .2 Immediately prior to pointing, thoroughly wet joints in order to control absorption. .3 Allow water to soak into masonry and mortar, leaving no standing water, but the joint surface remaining damp. .4 For backpointing, fill all joints full with mortar, compacting firmly into joints to ensure positive adhesion to all inner surfaces. Place mortar in layers, max 30 mm thick, minimum 12 mm thick, allowing each layer to set to thumb print hard before placing next layer. Bring face of mortar in backpointed joint to specified minimum depth from stone face, measured from the arris of the masonry unit. .5 Leave mortar in joint square and of even depth measured from stone arris. Where joints are wide, such as found on some Nepean sandstone walling, be certain to score the surface of the backpointing in order to assist bonding of the frontpointing when it is placed. .6 Prevent mortar from being placed or smeared onto face of stone during pointing work.
.3 Frontpointing: .1 When all required stone repair and replacement work is complete, carry out repointing. .2 Dampen joints and completely fill with mortar. If surface of masonry units/stone has worn rounded edges, keep pointing back from surface to keep same width of joint. Avoid feather edges. Pack mortar solidly into voids and joints. .3 Before repointing, wash walls to be repointed and allow to dry to damp, but not wet, conditions. Ensure that all dust, mortar particles, and other debris are removed from joints and wall surfaces before repointing. .4 Keep masonry damp while pointing is being performed. .5 Do no pointing in freezing weather. See Section 04 05 00 - Common Work Results for Masonry. .6 Firmly pack frontpointing mortar into joint being certain that full contact with backpointing and joint edges of stone is made. Fill joint with mortar to slightly overfill. .7 Allow mortar to set to thumb-pressed firmness, pack by pressing with slicker one last time, and then cut mortar to match approved mock-up. Mortar must be recessed by approximately 1 mm or as established during mock-up, such that the arris edge is visible. Flush cut joints or overpointing
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will not be allowed. .8 Final finish to expose aggregate texture will be completed using a stiff bristle brush which is struck, not wiped, against the surface of the finished joint. .9 Do not retemper pointing mortars by adding water. Retempering of mortar is only allowed by means of rewhipping it with a highspeed paddle mixer sufficiently to replasticize the mix: .10 Remove excess mortar from masonry face before it sets and clean thoroughly with water, brushes and thick cotton rags.
.4 Curing: .1 Moist cure freshly pointed joints by covering with moist heavy and tight woven burlap and polyethylene sheeting for minimum of 7 days. Keep wall and burlap misted and burlap completely covered with a polyethylene draped lining to prevent drying.
.5 Protection: .1 Protect newly laid mortar from frost, rainfall or rapid drying conditions such as wind for 28 days.
3.4 Resetting
.1 Gently remove stone to be reset.
.2 Remove all loose debris and deteriorated mortar from exposed core. Chip and clear away core masonry as necessary to allow stones to be rebuilt to fit.
.3 Backpoint all mortar joints of the exposed surface to 25 mm depth.
.4 Consolidate and parge 100% of exposed core with mortar - fill all the exposed cavities. .5 Allow mortar to set 24 hours and proceed with grout injection. Insert grout tubes along top joint. Grout the reset stone or stones under low pressure.
.6 Install stone.
.7 Fix masonry units in correct location with water-soaked hardwood wedges.
.8 Pull out wood wedges when dried and shrunken.
.9 Proceed with frontpointing only once grout has cured and humidity related to the grout installation has subsided. Remove any salts that may have formed on surface of stone with a stiff bristle nylon brush prior to front pointing.
3.5 Detached Stone Shards
.1 Should portions of stone adjacent to mortar joints, such as corner, become detached during the work of mortar joint work, then the Contractor shall reattach immediately following the specified procedures for shard repair as described in section 04 03 41 Heritage – Repair of Stone. .1 In order to prevent loss of such portions of stone, the Contractor must ensure the already loose portions of stone is retained, kept safe from loss and protected until such time that it is reattached to its original position. .2 Allow for 75 shard repairs to be executed in the project.
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3.6 Field Quality Control
.1 The NCC Representative will inspect the quality of the work on a regular basis.
.2 Notify NCC Representative prior to removing mortar joints, so that before condition can be recorded. Provide clear access to all points of stone masonry to permit this photography to occur.
.3 Approval of raked out condition of joints, and approval of backpointing mortar, must be received in writing to the Contractor before the next procedure can proceed.
.4 Provide the NCC Representative with a minimum of 48 hours notice for required inspections.
.5 Where work proceeds to the next phase without the approval of the NCC Representative, the Contractor will remove all unapproved mortar at his own cost.
3.7 Cleaning of Work in Progress
.1 Clean surfaces of mortar droppings, stains and other blemishes resulting from work of this contract as work progresses on a daily basis.
.2 Clean masonry with stiff, non-ferrous bristle brushes and clean water only. Chemicals are not to be used unless instructed in writing by NCC Representative.
.3 Remove all existing embedded anchors and/or repoint masonry joints at anchor locations as scaffolding is removed.
.4 Clean stone masonry to remove environmental soiling. See Section 04 03 06 - Heritage - Cleaning Historic Masonry.
.5 Remove all debris from stone faces, ledges and sills, as scaffolding is being removed.
.6 Re-oil all lead flashed surfaces at end of work.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 08 Façades and Roofs Restoration HERITAGE - MORTARING National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Sections
.1 Section 04 03 07 - Heritage - Masonry Repointing and Repair.
.2 Section 04 03 42 - Heritage - Replacement of Stone.
.3 Section 04 05 00 - Common Work Results for Masonry.
.4 Section 04 21 13 - Brick Masonry.
1.2 References
.1 American Society for Testing and Materials (ASTM) .1 ASTM C207-06, Specification for Hydrated Lime for Masonry Purposes. .2 ASTM C348-08, Test Method for Flexural Strength of Hydraulic-Cement Mortars. .3 ASTM C940-98a(2003), Test Method for Expansion and Bleeding of Freshly Mixed Grouts for Preplaced Aggregate-Concrete in the Laboratory. .5 ASTM C144-04 Standard specification for Aggregate for Masonry Mortar
.2 Canadian Standards Association (CSA International). .1 CSA-A3000-08, Cementitious Materials Compendium (Consists of A3001, A3002, A3003, A3004 and A3005). .2 CSA A179-04, Mortar and Grout for Unit Masonry.
.3 Health Canada / Workplace Hazardous Materials Information System (WHMIS): .1 Material Safety Data Sheets (MSDS).
.4 European standards .1 EN 459-1:2001, Building lime. Definitions, specifications and conformity criteria. .2 EN 459-2:2001, Building lime. Test Methods.
1.3 Submittals
.1 Submit documents and samples in accordance with Section 04 05 00 - Common Work Results for Masonry.
.2 Submit two copies of WHMIS MSDS Material Safety Data Sheets in accordance with Section 01 35 29 - Health and Safety Requirements for materials used for the work of this Section. Indicate VOC content.
.3 Samples (coloration) .1 Colour matched samples for mortar and in quantity and size in accordance with CSA A179M. .2 Prepare samples to represent same exposure conditions of building. Fully cure minimum 3 days .3 Submit two 100 mm diameter size samples each type of mortar. .1 Colour for mortars will ultimately be determined by placing trial colours in the joints of the wall where they will be placed, tamped, cut and cured as per specification.
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.4 Additional cubes for testing. Provide additional series of cubes for long term testing by NCC Representative as follows: .1 For all mortar types: up to 5 sets of cubes from selected mortar batches as directed by NCC Representative. .2 Prior to the mixing or preparation of mortars submit for approval to the NCC Representative: .1 Aggregate .2 Cements .3 Lime
1.4 Mortar Testing
.1 Submit test reports in accordance with Section 01 45 00 - Quality Control.
.2 Test results to show that properties are appropriate to particular mortar mix.
.3 Test reports required prior to commencement of work: .1 Sieve analysis of proposed sand. .2 Bulking analysis of proposed sand in condition as delivered to site and after any change in environmental conditions. .3 Air content of mortar mix in plastic state. .4 Vicat cone penetration of mortar mix. .5 Compressive Strength of mortar at 7 and 28 days, a minimum of 35 days prior to commencing work, or as directed by NCC Representative.
.4 Test reports required following commencement of work: .1 Bulking analysis of sand upon delivery and following any change in environmental conditions, or upon request by NCC Representative. .2 Air content of mortar mix on a daily basis at discretion of NCC Representative. .3 Vicat cone penetration measurements on each mortar batch for first three days, followed by daily tests at discretion of NCC Representative. .4 Compressive strength of mortar at 7 and 28 days, and daily strength tests at discretion of NCC Representative.
.5 Mock-up: provide colour matched samples on building for final acceptance of materials.
.6 Refer to Section 04 05 00 - Common Work Results for Masonry for other quality assurance requirements.
.7 Any mortar found on the tower and identified by the NCC Representative as to be original mortar, to be tested in laboratory for material composition by the general contractor.
1.5 Environmental Requirements
.1 Comply with the requirements of Workplace Hazardous Materials Information System (WHMIS) regarding use, handling, storage and disposal of hazardous material; and regarding labelling and the provision of Material Safety Data Sheets.
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1.6 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction/Demolition Waste Management and Disposal and Section 04 05 00 - Common Work Results for Masonry.
PART 2 PRODUCTS
2.1 Materials
.1 Use same brands of materials, suppliers and source of aggregate for entire project.
.2 Mortar and grout: in compliance with CSA A179.
.3 Aggregate: to CSA A179. Use well graded aggregate passing 4.75 mm down to 300 microns sieve where joints are greater than 6 mm. Use aggregate passing 1.18 mm down to 300 micron sieve where 6 mm thick joints or less are indicated. Colour of sand to match existing. Contractor shall custom prepare the aggregate to suit any adjustment requests of the NCC Representative.
.1 Grading of sand: sieve analysis for mortar joints greater than 6 mm in width:
SIEVE SIZE PERCENTAGE BY WEIGHT PERCENTAGE BY WEIGHT PASSING EACH SIEVE RETAINED ON EACH SIEVE 4.75 mm 100 0 2.36 mm 90 10 1.18 mm 70 20 600 microns 50 20 300 microns 30 20
.2 Grading of sand: sieve analysis for mortar joints greater than 6 mm in width:
SIEVE SIZE PERCENTAGE BY WEIGHT PERCENTAGE BY WEIGHT PASSING EACH SIEVE RETAINED ON EACH SIEVE 1.18 mm 90 10 600 microns 70 20 300 microns 40 30
.4 Colour: dry powdered in inorganic pigments, maximum quantity permitted in dry form will not exceed 8% of the total binder volume. .1 Acceptable material: Mortar pigment as manufactured by Rockwood Pigments. .2 Alternative Materials: Approved by addendum in accordance with Instructions to Tenderers.
.5 Sand: to CSA A179 and ASTM C144 .1 Sand to be sharp, screened and washed siliceous pit sand, free of any organic material, graded as specified, colour to match sand from pit located at Renfrew, Ontario to approval of NCC Representative. .2 Sand is to be dried 100% and kept dry throughout period of work.
.6 Water: potable or from approved non-potable supply.
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.7 Lime: .1 Lime Type 1: Hydrated lime: ASTM C 207, type SA, containing air entrainment agent. .2 Lime Type 2:: fresh hydraulic lime, finely ground, to EN 459-1, type NHL 3.5, containing air entraining agent, to NCC Representative’s approval.
.8 Portland Cement: CSA-A3000, white, non staining, normal, type GU for sandstone, and type HS for foundation walls.
.9 Repair mortar and dispersed hydrated limes for crack repair of stone: .1 For mortar repairs including wide cracks mixed on site with aggregate and pigments. .1 Acceptable material: Proprietary premixed repair mortar based on St. Astier Hydraulic lime NHL 12. .2 Alternative Materials: Approved by addendum in accordance with Instructions to Tenderers. .2 For thin cracks and fissures (Colouring using dry pigment to be established during project work): .1 Acceptable material: Dispersed Hydrated Lime (DHL) for Injection and Shelter Coat. .2 Alternative Materials: Approved by addendum in accordance with Instructions to Tenderers.
.10 Repair mortar for patching stone surfaces: .1 Proprietary premixed stone patching material that is formulated to closely match the colour, texture and physical properties of the stone to be patched. .2 The mortar shall be formulated to need only to be mixed with potable water at the site. .3 The mortar shall be vapour-permeable, frost and salt resistant, shrink resistant, and be physically compatible with the substrate, including, but not limited to porosity, tensile strength and compressive strength. .4 Acceptable materials: .1 Jahn Restoration Mortars, distributed by Cathedral Stone Products Inc. .1 Stone patching mortar: Jahn M70. .2 Setting anchors in existing masonry: Jahn M80 Anchor Setting Mortar. .3 Injection Mortar for filling airspace between stone and Dutchmen: Jahn M30 or M40.
2.2 Properties and allowable tolerance
.1 Bedding and pointing mortar for stonework: .1 Subgrade stonework: use Type N, 1:2:6 Portland cement-lime-aggregate mix; compressive strength 5.5 MPa to 8 MPa at 28 days. .2 Above-grade stonework: use Type O, 1:2.5:8 white Portland cement-lime-aggregate mix; compressive strength; 1.5 MPa to 3.5 MPa at 28 days. .3 If the cement hydrated lime-sand mortar fails to meet the 7 day compressive strength requirements, but meets the 28 day compressive strength requirement, it is to be accepted. If the mortar fails to meet the 7 day compressive strength requirement, but its strength at 7 days exceeds two thirds of the value required for the 7 day strength, the General Contractor may elect to continue work at his own risk whilst awaiting the results of the 28 day tests, or to take down affected work.
1 .2 Mortar for levelling top surfaces of projecting elements prior to installation of flashing, use 1:2 /2:8 white Portland cement-lime-aggregate.
.3 Vicat Cone Penetration of mortar mix in plastic state;
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.1 Pointing Mortar; 18-22 mm .2 Bedding Mortar; 20-35 mm
.4 Allowable air content for all lime/cement mortars; 10% to 14%. Air content of plastic mix, using meter designed to record air content of mortar to EN 459-2.
.5 DHL and shelter coat: Properties established by mixing in accordance with the manufacturer's instructions and to the same consistencies as the approved mock-up.
.6 Repair mortar: Properties established by mixing in accordance with the manufacturer's instructions and to the same consistency as the approved mock-up.
2.3 Mortar types and proportions
.1 Proportion lime mortar by volume. Add colouring additives to match approved samples of each colour: buff, black and red, of pointing mortars, to maximum 8 percent of binder content, by volume. Adjusted mixes to comply with specified performance requirements.
.1 Subgrade stonework, backpointing and bedding mortar:
.1 Mortar Type 1: one part white Portland cement, two part hydraulic lime type 1 and six parts sand (1:2:6).
.2 Above-grade stonework – frontpointing:
.1 Mortar Type 1: one part white Portland cement, two part hydraulic lime type 1 and six parts sand (1:2:6).
.2 Mortar Type 2: one part white Portland cement, two and one half parts hydraulic lime type 1 and eight parts sand (1:2.5:8).
.3 Mortar Type 3: one part white Portland cement, two and one half parts hydraulic lime type 1 and eight parts sand and pigment (1:2.5:8).
2.4 Mixes
.1 Coloured mortars: incorporate colour into mixes, using dry pigments not exceeding 8% of binder volume. .1 Use clean mixer for coloured mortar. .2 The Contractor to allow for at least 6 different mortar colours to match the colour of the existing mortar joints in the project. The final and precise mixes and colours to be determined with the mock-up.
.2 Pointing and bedding mortar: .1 Correct water content and proper consistency for pointing will be established using a Vicat Penetrometer. .2 Mixes throughout project will be regularly monitored with the Vicat Penetrometer during the duration of project to insure the consistency remains constant.
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PART 3 EXECUTION
3.1 Manufacturers' Instructions
.1 Compliance: comply with manufacturer's written data, including product technical bulletins, product catalogue installation instructions, product carton installation instructions, and data sheets.
3.2 Construction
.1 Do masonry mortar and grout work in accordance with CSA A179 except where specified otherwise.
3.3 Mixing - General
.1 Prepare measuring boxes to ensure accurate proportioning of mortar ingredients. .1 Each box to contain exact volume proportion for each specific mix ingredient.
.2 Begin by mixing dry ingredients in a bucket for approximately 2 minutes, then add mix to predetermined quantity of water in a mixing bin/bucket. Whip-mix for approximately 5 minutes. Let rest for 5 minutes. Final whip-mix ingredients for a final approximate 3 minutes. The mortar should easily form when spun by hand into a ball.
.3 Water content for mortar to be determined by Vicat penetration testing.
.4 Record water quantities and use for subsequent mixes to help ensure uniformity of all subsequent mixes.
.5 All mortar used for rebuild areas of wall building can be mixed using a regular paddle mixer. Only electric motor mixers are permissible. Mixers run on fossil fuels are not permitted because of fumes. .1 Mixing by hand for repointing mortars must be pre-approved by the NCC Representative and must be carried out using a high speed, 2500 rpm, drill with paddle mixer attachment. Mixing to be completed in sufficiently small container so as to allow full contact of the paddle with the mortar during the mixing process, thus insuring thorough incorporation of ingredients and air-entrainment. .2 Submit mixing tools and container for approval prior to starting pointing work.
.6 Thoroughly clean all mixing boards and mechanical mixing parts between batches.
.7 Mortar must be weaker than the units it is binding.
.8 Mortar must not contain elements detrimental to the original masonry or surrounding materials.
.9 Contractor to appoint one individual to mix mortar, for duration of project. In the event that this individual must be changed, mortar mixing must cease until the new individual is trained, and mortar mix is tested.
3.4 Mixing - Cement/Lime/Sand Mortar
.1 Load mixer with 75 percent of total water volume required. Add 50 percent of sand required and full volume of dry hydrated lime and any colouring additives. Mix for approximately 3 minutes or until materials are thoroughly blended, without particles of white lime apparent in mix.
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.2 Allow mix to stand for 5 minutes.
.3 Pre-mix Portland cement with sufficient quantities of water to attain slurry mixture.
.4 Add full volume of Portland cement slurry and remaining volumes of sand and water. Mix for 3 to 5 minutes until thoroughly blended and mortar has reached consistency determined by Vicat Cone penetration test.
.5 Add sufficient water to obtain workable consistency for setting units to comply with specified allowable tolerances.
.6 Blend stone dust and colouring additives with sand. Maintain specified grading.
.7 Use mix within two hours.
3.5 Mixing - Proprietary Premixed Mortar
.1 Begin by mixing dry ingredients in a bucket for approximately 2 minutes.
.2 Add mix to predetermined quantity of water in a mixing bin/bucket with a digital timer.
.3 Whip-mix for approximately 3.5 minutes.
.4 Let rest for 5 minutes.
.5 Final whip-mix ingredients for a final approximate 3 minutes.
.6 The mortar should easily form when spun by hand into a ball.
3.6 Mixing - Repair Mortars
.1 Mix DHL and patching repair mortars in accordance with the manufacturer's instructions and using the same mixes and methods as the approved mock-ups. Refer to Section 04 03 41 - Repair of Stone and Section 04 05 00 - Common Work Results for Masonry.
.2 Mixed in small quantities as needed. Mix by hand and small paddle on electric drill (2500 rpm).
3.7 Cleaning
.1 Upon completion of mortar work, remove surplus materials, rubbish, tools and equipment.
.2 Remove mortar droppings using clean cotton cloth or sponge and water. Do not smear onto adjacent surface and causing lime streaking on stone.
.3 Clean masonry with low-pressure clean water and soft natural bristle brush. See Section 04 03 07 - Historic - Masonry Repointing and Repair.
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3.8 Protection of Completed Work
.1 Cover completed and partially completed work not enclosed or sheltered with waterproof covering at end of each work day. Anchor securely in position.
3.9 Field Quality Control
.1 Inspection and testing of mortar will be carried out by a Testing Laboratory designated by the NCC Representative, to CSA A179.
.2 The NCC Representative will pay for cost of initial inspections and tests. Contractor shall pay cost of re- inspecting and re-testing necessitated by failure to meet specification requirements on initial inspection/test.
.3 Frequency of mortar testing will be specified by NCC Representative. .4 Air content for all lime mortars, and penetration using Vicat cone penetrometer for mortars used in stonework, must be tested at the same frequency as strength tests, or more frequently as required by the NCC Representative. .1 Contractor is to own and have on site a fully functioning and well maintain Vicat penetrometer throughout the duration of the project work.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 41 Façades and Roofs Restoration HERITAGE – REPAIR OF STONE National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Work
.1 Section 01 43 17 - Masonry Conservator.
.2 Section 04 03 06 - Heritage - Cleaning Historic Masonry.
.3 Section 04 03 07 - Heritage - Masonry Repointing and Repairs.
.4 Section 04 03 08 - Heritage - Mortaring.
.5 Section 04 03 42 - Heritage - Replacement of Stone.
.6 Section 04 05 00 - Common Work Results for Masonry.
1.2 Reference Standards
.1 American Society for Testing and Materials (ASTM): .1 ASTM A276-08a, Standard Specification for Stainless Steel Bars and Shapes.
.2 Canadian Standards Association (CSA): .1 CSA-A179-04, Mortar and Grout for Unit Masonry.
.3 Health Canada / Workplace Hazardous Materials Information System (WHMIS): .1 Material Safety Data Sheets (MSDS).
1.3 Definitions
.1 Repair of Stone: any repair, other than cosmetic, i.e. superficial, and replacement, done to restore original appearance and function of partly deteriorated stones.
.2 Grout: material used as adhesive to fasten broken/fractured stone elements by direct application at fracture interface and/or by application to added reinforcing elements such as dowels.
.3 Repair Mortar: material used to rebuild broken or deteriorated part of stone.
1.4 Alternatives
.1 Change of manufacturer's brands, sources of supply of materials during entire contract must be approved by NCC Representative.
1.5 Samples
.1 Submit samples in accordance with Section 01 33 00 "Submittal Procedures".
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.2 Submit samples of patching mortar and stone adhesive proposed for use.
.3 Submit three full-size stone units, representative of the units proposed for the work.
1.6 Submittals
.1 For each set of photographs, submit to the NCC Representative: .1 A complete set of digital files on CD, clearly identified with the project name and the location. .2 A complete set of hardcopies of the photographs, as follows: .1 200 mm x 250 mm format .2 Neatly label each photograph with a number system corresponding to the key drawings prepared for the marking of the stonework. .3 Bind each set of photographs in a three-ring binder clearly identified with the project name and the location. .4 Include a copy of the relevant key drawing(s) in each binder.
1.7 Quality Assurance
.1 Refer to Section 04 05 00 - Common Work Results for Masonry.
1.8 Mock-Ups
.1 Construct mock-ups in accordance with Section 01 45 00 - Testing and Quality Control and Section 04 05 00 - Common Work Results for Masonry.
1.9 Delivery, Storage and Handling
.1 Deliver, store, and handle materials to protect them from damage, extreme temperature, and moisture in accordance with Section 01 61 00 - Common Product Requirements and Section 04 05 00 - Common Work Results for Masonry.
.2 Deliver and store material in the manufacturer's original, unopened containers with the grade, batch, and production date shown on the container or packaging.
.3 Store materials in a dry enclosed area and supported free of the ground. Maintain a minimum ambient temperature of 10 oC in the storage area.
.4 Use materials from the same manufacturer throughout the Project.
1.10 Environmental Requirements
.1 Refer to 04 05 00 - Common Work Results for Masonry.
.2 Maintain temperature at 10 oC or above during and 7 days after repair, throughout thickness of stone.
.3 Choose epoxy resin compatible with humidity and temperature condition of stone as specified by
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manufacturer.
1.11 Product Data
.1 Submit product data in accordance with Section 01 33 00 - Submittal Procedures.
.2 Provide product data for each product proposed for use. Include: .1 Application/installation instructions. .2 Laboratory test reports certifying compliance of products with specification requirements. .3 Manufacturer's material safety data sheets (MSDS) for the safe handling of the specified materials and products, in accordance with WHMIS requirements
1.12 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction/Demolition Waste Management and Disposal and Section 04 05 00 - Common Work Results for Masonry.
PART 2 PRODUCTS
2.1 General
.1 Use materials from same manufacturer throughout project.
.2 Acceptable Materials: Where materials are specified by trade name, refer to the Instructions to Tenderers for procedure to be followed in applying for approval of alternatives.
.3 For approval of alternative materials, thorough lab testing shall be required to establish equivalent performance levels. An independent testing laboratory, acceptable to the NCC Representative, shall be utilized. The cost of lab testing shall be paid by the Contractor.
2.2 Materials
.1 Materials for mortar and grout, see Section 04 03 08, Historic - Mortaring.
.2 Water: clean and free of deleterious materials such as acid, alkali and organic material in accordance with CSA-A179.
.3 Dowels and threaded rods, 2 to 26 mm diameter to ASTM A276, Stainless Steel Grade 304.
.4 Deformed wire: stainless steel or equivalent non-corrosive metal, 2 mm diameter.
.5 Stone slabs: to have similar mechanical and aesthetic properties to existing.
.6 Epoxy Resin Gel:
.7 Epoxy Resin, low viscosity, UV stable, capable of setting and curing in wet conditions.
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.8 Acrylic Resin:
.9 Acetone solvent. Industrial grade.
.10 Methyl Ethyle Ketone (MEK) solvent.
.11 Hot glue cartridges with electric gun dispenser.
.12 Modelling clay.
.13 Plumber's adhesive tape.
.14 Burlap, untreated and non-staining.
.15 100% cotton rags.
.16 Hardwood wedges: free of tannins, various lengths and thickness.
.17 Backer-rod: Polyethylene rope to accommodate all joint width snugly.
.18 Syringes: 30 ml and 60 ml volumes, with twisted attachment for standard needles.
.19 Catheters: 60 ml volume capacity.
.20 Needles for syringes: size numbers 14, 16, 21.
.21 Plumber's 6 mm and 12 mm clear tubing.
.22 De-ionised water.
.23 Repair mortar for wide cracks: Refer to Section 04 03 08 - Heritage - Mortaring.
.24 Dispersed hydraulic lime (DHL) injection grout and shelter coat: Refer to Section 04 03 08 - Heritage - Mortaring.
.25 Microballoon, polyester spheres. Colour tan.
2.3 Equipment
.1 Supply the following smaller specialized tools and equipment: .1 Small 18.5 volt cordless drills of good quality. .2 Small 100 mm grinders. .3 Tungsten Carbide tipped drill bits of 2 - 6 mm for drilling small holes. .4 Lightweight, quick-release clamps of various sizes. .5 Strap clamps. .6 Plunge-type core drill, capable of coring hole of 6 mm. .7 Metal artist spatulas of various sizes. .8 Carbide-tipped scriber for marking cut lines on stone. .9 Neoprene carvers mallet, small size (130 mm diameter).
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 41 Façades and Roofs Restoration HERITAGE – REPAIR OF STONE National Capital Commission Page 5
.10 Small carbide-tipped chisels of sizes 6 mm to 12 mm, dovetail-shaped. .11 Carborundum rubbing of fine, medium, and coarse grain. .12 Epoxy injection pump: .13 Grout injection tanks set up for low pressure injection into joints. .14 Submersible blender such as supplied in kitchen stores. .15 Rotary saw dremil: .16 Diamond cutting blades, turbo style, 86 mm.
2.4 Mortar Mixes
.1 Mixes, see Section 04 03 08 - Heritage - Mortaring.
.2 Mix restoration repair mortar in small quantities as needed. Mix by hand and small paddle on electric drill (2500 rpm).
2.5 Source Quality Control
.1 Retain purchase orders, invoices, suppliers test certificates and documents to prove that materials used in contract meet requirements of specification.
.2 Produce above upon request by NCC Representative and allow free access to sources where materials were procured.
PART 3 EXECUTION
3.1 Examination, Marking & Recording
.1 For each section of stonework, after scaffolding has been erected but prior to starting stonework removal or repair, examine the condition of the stonework to verify the exact scope of the work.
.2 Designate a set of drawings to be used as key drawings and mark them up to provide a referencing system to identify locations of repair and replacement of stone.
.3 Mark the stone, on the face, using marking product which can be completely erased when required without damaging masonry unit: .1 Ball-point pen on diachylon, attached to stone; or .2 Waxless chalk directly on stone.
.4 Mark the stone using a numbering, marking, and positioning system keyed to the prepared key drawings.
.5 Ensure that temporary marking will remain in use, resistant to weather, handling and cleaning until the completion of the work or final marking of stones designated for removal.
.6 When marking is complete obtain the NCC Representative's acceptance and agreement with respect to the scope of work. Should the agreed upon scope of work be found to vary substantially from that indicated on the drawings, changes in the Contract Price will be made, with resulting credits or expenditures to the Contract Price accruing to the NCC Representative.
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.7 Ensure that markings and adhesive are removed without damaging units by brushing with a vegetable fibre or nylon brush used either dry or with water. Use no solvent, acid or other chemical product.
.8 When stones are removed for repair or replacement, transfer temporary markings to a face which will not be visible in the final assembly using permanent markers.
.9 Make a complete photographic record of the condition of the wall prior to commencement of work.
3.2 Preparation
.1 Remove decayed section of stones until sound surface is reached. Obtain NCC Representative's approval for methodology and tools to be employed before commencing this work.
3.3 Protection
.1 Prevent damage to building, landscaping, pavement, which are to remain. Make good any damage.
.2 Take utmost care not to damage historic fabric. Make good any damage.
3.4 Removal of Caulked Sealants
.1 All caulking and sealants are to be removed along the joints between existing flashings and masonry, and at all other locations where caulking has been used to seal mortar joints. Refer to Section 04 03 06 - Heritage - Cleaning Historic Masonry.
3.5 Dutchman Repairs
.1 Location and dimension of cutting required to remove deteriorated stone will be marked and agreed upon by the NCC Representative prior to cutting.
.2 Only stones marked on drawings or otherwise marked out by the NCC Representative shall be cut into for purposes of inserting a Dutchman.
.3 Adjacent masonry units must not be cut into, displaced, or in any way damaged while cutting or removing masonry units.
.4 NCC Representative shall approve methods and tools used for cutting out purposes.
.5 Cutting out shall follow precise incised lines (scribed) which are squared and following right angles.
.6 Cut out deteriorated portion to a minimum of 100 mm behind wall or arris line.
.7 Smooth the bottom and side surface of the prepared cavity to receive the new stone.
.8 Cut new stone to dimension to fit prepared cavity snug. A tolerance of 1.0 mm will be allowed between Dutchman insert and host stone joints. This includes backside joint.
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Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 41 Façades and Roofs Restoration HERITAGE – REPAIR OF STONE National Capital Commission Page 7
.9 Smooth, tool or carve surface to match adjacent exterior surface of the cavity.
.10 Provide attachment of inserted Dutchman to cavity by inserting two stainless steel rods (12 mm dia.) into back side for Dutchmen smaller than 300 mm x 300 mm, and two rods (12 mm dia.) for Dutchmen larger than 300 mm x 300 mm, set in epoxy. The drilled holes shall reach 75 mm into connecting surface. The holes must be thoroughly cleaned before epoxy is injected.
.11 Insert Dutchman flush with original surface. It must be aligned with a joint of even width of 1 mm maximum surrounding it. Use slurry of hydraulic lime (NHL 12) to fill cavity joint around Dutchman. Thoroughly soak stone surfaces prior to applying the slurry.
.12 Allow slurry and resin for anchors to set thoroughly. Wipe all slurry spills from surface to insure against lime staining.
.13 Top-fill joints flush with colour matched layer of DHL shelter coat using a syringe and needle with spatula to press flush.
3.6 Stone Plugs
.1 Insert stone plugs to repair holes left by the removal of existing anchors and anchors required for the current work.
.2 Remove existing deteriorated plugs and insert new stone plugs as specified herein.
.3 After removal of anchor or old deteriorated plug, core-drill a hole in the stone, generally 25 mm dia. but large enough to include the removal of all irregular edges to the existing hole.
.4 Insert a matching cylindrical stone plug
3.7 Dress Back stone
.1 Where surface of stone is scaling or disaggregating, gently rub using hand-held carborundum blocks, and pluck with small hand-held tools.
.2 Should the surface display significant thin-plate exfoliation or similar condition, larger hand held tools shall be applied to the surface to remove them. Strict caution must be used to avoid aggressive removal of material from the surface. .3 Bevel the edges of retained and firm surface plates to ensure water shedding.
.4 If required by NCC Representative, stitch the bevelled edge and inject/shelter coat/fill any fissure along the bevelled line.
3.8 Fissure repairs
.1 For wide fissures (i.e. over 4 mm), face up the crack with hot glue in order to retain the grout to the injected areas of the fissure. Inject the DHL through ports placed along the length of the fissure a maximum of 100 mm apart. For small fissures (i.e. less than 4 mm), mix grout with de-ionized water to
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 41 Façades and Roofs Restoration HERITAGE – REPAIR OF STONE National Capital Commission Page 8
consistency that allows easy flow from a #12 and/or #16 hole size needle attached to a syringe containing the DHL deep injection grout to fill deep recesses and DHL shelter coat to fill the top surface of the fissure, and pigmented to match the stone colour.
3.9 Pin and Fill repair
.1 NCC Representative will mark location for stitches.
.2 Drill small holes as marked by NCC Representative to a minimum depth of 50 mm beyond line of crack being stitched. .1 Hole diameters and depths shall be determined by the Conservator.
.3 Clean hole thoroughly, first blowing out with forced air from compressor, followed by flushing with acetone. Allow solvent to evaporate.
.4 Install stainless steel dowels as noted on drawings, and as directed by NCC Representative.
.5 Inject with epoxy, adjusting viscosity with micro-balloons to prevent unnecessary flow into unwanted voids.
.6 Once epoxy is set, drill out cured epoxy from top 12 mm of hole and fill with a colour matching repair mortar.
.7 Complete repair of crack (following item 3.8 above) using DHL injection grout and DHL shelter coat.
.8 Where the crack is wider than 4 mm or where voids are considered too large along the edge of the crack, then mortar repairs (following item 3.14 below) shall be carried out.
3.10 Shard Repair
.1 This refers to detached portions of stone detail which become detached, usually at corners and under such circumstances as when mortar joints are cut away during repointing procedures, etc. Allow for 75 shard repairs to be executed in the project.
.2 Clean detached surfaces of dust and dirt by scrubbing with water and brush if necessary.
.3 Apply small dab of polyester resin to dry, middle area surface of detached portion.
.4 Working quickly, squeeze the two surfaces together to secure original fitting together.
.5 Cut any squeeze out of polyester resin while in the gel stage just prior to hardening.
.6 Proceed with repair as for crack fill described in 3.9 above (Mechanical consolidation of cracks in stone).
3.11 Deep Cracks repair in Stone
.1 Drill stitch holes as marked and directed by Conservator. For fragile detached portions such as corners, it is preferable to core the 1/4 holes required for the stitch. Thoroughly clean all dust from drilled holes. Cut
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 41 Façades and Roofs Restoration HERITAGE – REPAIR OF STONE National Capital Commission Page 9
and insert stainless steel rod such t hat it sits countersunk to surface by 20 mm. Plug holes with sandstone cored plug of same diameter as the drilled holes. Insert with epoxy paste or approved equivalent, such that the hole is fully sealed. With masonry tools, gently work the surface of the core plug down to surface contour of sandstone such that the core plug is as invisible as possible.
.2 Loose materials must be cleaned from crack and also from the adjacent surface of the stone.
.3 Seal the immediate edges of the crack with the acrylic resin or approved equivalent. This will provide a releasing agent and removable buffer to the quick-set cement.
.4 Apply masking tape to surface outside the acrylic resin so as to insure further protection of the stone surface from spills and or staining.
.5 Roll modelling clay into long rolls and push into top surface of cracks. Fully seal entire length of cracks so as to prevent any epoxy resin from escaping onto face of the sandstone.
.6 Insert port guides and injection ports along the crack, using a quick-setting cement to seal the ports to their positions.
.7 Inject the epoxy resin under pressures of between 50-80 psi.
.8 Purge the injection gun and equipment away from building.
.9 After the epoxy is cured, the cement seal and modelling clay removed, use MEK (methyl ethyl ketone) solvent to remove the acrylic resin from the surface.
.10 Final fills to the top surface of the cracks shall be completed by using a mixture of AC 33 acrylic resin thickened with fine-sieved stone dust (>300 microns). The stone dust shall be made from crushing waste portions of original stone. Conservator shall provide recipe during time of the work.
3.12 Stone with Fractures that Threaten to Divide the Stone
.1 Where possible, the following procedure shall be carried out prior to removing a broken stone from the wall. This is a preventative measure against complete division.
.1 From the joint sides or, only if necessary, through face of the stone, drill holes to a depth of 100mm beyond line or fracture. NCC Representative will mark line for drilling these holes. .2 Clean holes using vacuum with small diameter attachment to reach to bottom of hole. Follow this with a cotton swab wetted with Acetone. .3 Do not allow dust or moisture to enter the hole once it has been cleaned. .4 Fractures that might allow bleeding out of injected epoxy must be sealed first by micro grouting using DHL injection grout. .5 Inject holes with sufficient epoxy resin, thickened to control viscosity, to allow stainless steel rod to be inserted without spilling onto surface of the stone. .6 Any spills must be cleaned immediately from surface using appropriate solvent. .7 Complete repair of crack following item 3.6 above using DHL injection grout and DHL shelter coat. .8 Where the crack is wider than 4 mm or where voids are considered too large along the edge of the crack, then mortar repairs (following item 3.14 below) shall be carried out.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 41 Façades and Roofs Restoration HERITAGE – REPAIR OF STONE National Capital Commission Page 10
3.13 Fractured Stones
.1 Divided portions of broken stone shall be reattached along broken surfaces.
.2 Drill 2 parallel holes of suitable diameter on one broken surface, marking angle of drill direction on outside of stone with chalk. .1 Holes shall be 100 mm deep without drilling through the stone.
.3 Raise this portion of stone and lower onto exact position of second broken half of stone. Once together, tap stone to loosen dust from drilled hole. Extend chalked lines marking angle of drill on second, undrilled portion of stone.
.4 Lift up originally drilled half. Location of corresponding holes to be drilled in second portion shall be marked by small piles of drilling dust. .1 Mark these locations and drill holes to a minimum of 100 mm depth without drilling through the stone.
.5 Thoroughly clean holes using vacuum cleaner and small attachments that fit to bottom of hole. Following this, wipe hole with cotton swabs that have been wetted with acetone.
.6 Fill holes with gel form epoxy resin sufficiently to allow for stainless steel threaded rod to be inserted without spillage onto broken surfaces.
.7 A thin coating of DHL injection grout is brushed onto the broken surfaces just prior to bringing the two portions firmly together. Be certain to pre-wet the interfaces surfaces before applying DHL injection grout.
.8 Restrain position using clamps placed to provide compressive pressure between portions.
.9 Complete repair of crack (following item 3.8 above) using DHL injection grout and DHL shelter coat.
.10 Where the crack is wider than 4 mm or where voids are considered too large along the edge of the crack, then mortar repairs (following item 3.14 below) shall be carried out. Tool the joint if required to match the existing surface.
3.14 Restoration Mortar Repair
.1 Where deterioration is localized, mortar repairs can be returned to a flush or otherwise weatherproof surface where previously a void or localized loss had occurred. It is therefore crucial that the properties of the repair mortar and the preparation of the cavity to which it is applied match the surface of the stone with regards to colour and texture. .1 A mortar repair will be judged as failed if it is cracked and/or sounds hollow to tapping.
.2 The locations for mortar repairs will be marked out by the NCC Representative.
.3 Cut out deteriorated portion to form a cavity, making certain that the shoulders of the perimeter are slightly under cut so that the bottom of the cavity is of a greater surface area than the cavity opening at the exposed surface of the stone. .1 Depth of cavity to be 20 mm unless the substrate is not sound, in which case, cut depth to sound substrate depth.
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Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 41 Façades and Roofs Restoration HERITAGE – REPAIR OF STONE National Capital Commission Page 11
.4 If cavity is overhanging, prepare an armature for the mortar to be secured against the pull of gravity. Armature shall be formed from 1 mm stainless steel wire shaped into a "staple", the two turned ends of which are to be placed into predrilled holes of 10 mm depth and secured with epoxy paste. Be certain that the armature is set no closer to the surface than 10 mm.
.5 Clean cavity thoroughly with pressurized air and dampen.
.6 Using small spatula-type tools, press the repair mortar into the cavity. If the cavity is deeper than 25 mm, place the repair mortar in two lifts. The mortar should over-fill the cavity by a slight amount.
.7 Protect the repair mortar with moistened burlap for several hours. When it just yields to thumb pressure, the mortar is ready for cutting and/or shaping and texturing. .1 The time it takes before the cutting can take place will vary and depend on ambient temperature and humidity.
.8 Apply and fix in place moistened burlap over which is placed a fixed sheet of plastic to control rapid evaporation. Maintain in place for 7 days.
.9 Mist periodically over a 5 days period.
.10 For pricing, assume mortar repairs located above the heads of seventh floor windows are to receive a shelter coat in order to provide additional protection. Assume average repair size is 100 mm x 100 mm x 50 mm deep.
3.15 Cleaning
.1 Demonstrate cleaning operations to NCC Representative before starting cleaning work.
.2 Clean stone work surfaces after repairs have been completed and mortar has set.
.3 Clean stone surfaces of grout or mortar residue resulting from work performed without damage to stone or joints.
.4 Clear site of debris, surplus material and equipment, leaving work area in clean and safe condition.
3.16 Protection of Completed Work
.1 Protect finished work from impact damage for period of two weeks.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 42 Façades and Roofs Restoration HERITAGE – REPLACEMENT OF STONE National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Sections
.1 Section 04 03 07 - Heritage - Masonry Repointing and Repair.
.2 Section 04 03 08 - Heritage - Mortaring.
.3 Section 04 05 00 - Common Work Results for Masonry.
.4 Section 04 05 19 - Masonry Reinforcement and Connectors.
.5 Section 32 13 15 - Concrete Curbs, Walks and Gutters.
1.2 Quality Assurance and standards
.1 Refer to Section 04 05 00 - Common Work Results for Masonry. .2 All new stones to be conform to the following standards. .1 ASTM C568 Standard Specifications for Limestone Dimension Stone – type III (for limestone) .2 ASTM C616 - 08 Standard Specifications for Quartz-Based Dimension Stone. (for sandstone) .3 ASTM C97 Test Methods for Absorption and Bulk Specific Gravity of Dimension Stone .4 ASTM C99 Test Method for Modulus of Rupture of Dimension Stone .5 ASTM C170 Test Method for Compressive Strength of Dimension Stone
.3 The contractor to provide the laboratory test reports and results on the purchased stones to the Departemental Representative for approval (except the Berea sandstone). All the tests identified above at 1.2.2 to be performed for each type of stone in the project (see paragraph 2.1) and the results to be submitted to the Departemental Representative for approval. If the results do not match the requirements, the stone will be refused.
1.3 Stone Quality Control from the NCC Representative
.1 The NCC Representative shall inspect the stone blocks and stone units at the following stages: .1 At the quarry: The stone blocks shall be selected by the NCC Representative. .2 At the Contractor's facility before cutting: The delivered stone blocks shall be approved by the NCC Representative at the shop before the Contractor proceeds with the cutting. .3 Prior to Installation: The cut stone units shall be approved by the NCC Representative before installation in the building.
1.4 Submittals
.1 Make required submittals in accordance with Section 04 05 00 - Common Work Results for Masonry.
1.5 Delivery, Storage and Handling
.1 Deliver, store, handle and protect materials in accordance with Section 04 05 10 - Common Work Results
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for Masonry.
.2 Deliver materials to job site in dry condition and in purpose made containers, packed to avoid chipping, damage or soiling, and protected from frost.
.3 Label each container to clearly indicate contents and location on building.
.4 Mark each stone quarry bed or direction of bedding and location of stone on building referenced to submittals. Use concealed permanent markings.
.5 Handling: .1 Avoid excessive handling; protect against chipping damage, soiling or staining. .2 Repairing stone damaged during handling is not permitted. .3 Do not use Lewis pins to move stones. Lift stones only by straps or chains with edges protected.
1.6 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction/Demolition Waste Management and Disposal and Section 04 05 00 - Common Work Results for Masonry.
PART 2 PRODUCTS
2.1 New Stone
.1 Stone: Sam e type, colour, texture and mechanical properties as existing stone to be replaced. t be replaced.
.2 Select pieces as follows: .1 Free of seam s, crack s or other imperfections impairing structural integrity. .2 Free of excessive mottling or piebald markings, clay spots, coal streaks, iron banding, or foreign substance impairing appearance. .3 T o maintain continuity of colour and texture of existing units to be replaced or to match adjacent units, as applicable.
.3 Fabrication: .1 Cut stone to shape and dimensions obtained from measurements and profiles taken from existing stone. .2 Cut stone to lay on its natural quarry bed. Lay arch stones at right angles to thrust. .3 Dress beds and joints sam e thick ness as existing and at right angles to face. .4 H and tool finish stone to final size and profile. Match appearance and profile of existing stone. Machine split stones are not acceptable. .5 Match finish variations to existing stone and to approval of N CC Representative. .6 Cut stone pieces to within tolerances exhibited by similar existing stones. .7 Cut, dress, rub stones to accommodate existing materials and work of other .8 Retain and store stone off-cuts for re-use as wall core material. .9 Dress back s of stone to match original shape and keying into the core of wall.
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2.2 General Physical Properties Required
.1 SAND ST O N E PRO PERT Y STAN D ARD S .1 Density, m in kg/m 3 2000 .2 Absorption by weight, m ax. % 8.00 .3 Compressive strength, m in. M Pa 28 .4 Modulus of rupture, m in. M Pa 2.41 .5 Abrasion resistance, m in. hardness 2
.2 LIM EST O N E PR O PER T Y ST AN D AR D S T YPE I T YPE II 3 .1 Density, m in. kg/m 1760 2160 .2 Absorption by weight, m ax. % 12.00 7.50 .3 Compressive strength, m in. M Pa 12 28 .4 Modulus of rupture, m in. M Pa 2.76 3.45 .5 Abrasion resistance, m in. hardness 10 10
.3 G R ANIT E PRO PERT Y STAN D ARD S 3 .1 Density, m in. kg/m 2560 .2 Absorption by weight, m ax. % 0.40 .3 Compressive strength, m in. M Pa 131 .4 Modulus of rupture, m in. M Pa 10.34 .5 Ab ras ion res istance , m in. ha rdness 25 .6 Flexu ral streng th, m in. M Pa 8.27
2.3 Anchors, Ties, and Mortar
.1 Anchors, cramps, dowels: refer to Section 04 11 00 - Proprietary Grout Anchors.
.2 Mortar: refer to Section 04 03 08 - Heritage - Mortaring.
PART 3 EXECUTION
3.1 Preparation
.1 Prevent absorption of ground water and exposure to rain. Rest stones in their natural bedding.
.2 Handling: .1 Move and lift stone units using means to prevent damage. .2 Submit stone units dropped or impacted to NCC Representative for inspection and approval. .3 Do not make holes or indentations for Lewises or dogs on face or top side of stone. .4 Fill holes after moving and lifting.
.3 Indicate bedding planes of stone units. Duplicate bedding marks on usable pieces of cut stone.
.4 Place safety devices and signs near work area, as directed.
.5 Install shoring and supports as required.
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3.2 Cutting/Sizing of Stone
.1 Use callipers, squares and levels to measure hole for new stone.
.2 Site trim by cut-sizing new stone with joint widths not more than: .1 Rock-face stone: 6 mm or as existing on building. .2 Cut stone: 6 mm.
.3 Joint between cut and rubble: min 8 mm and max 12 mm.
3.3 Moving Stones
.1 Use approved methods to move stones horizontally and to lift stones to working level.
.2 Move, handle and set stones without causing damage.
3.4 Resetting Misaligned Stones
.1 Where indicated, re-set misaligned stone. Construct and brace temporary supports for arches to resist loads.
.2 Remove stone units as necessary.
.3 Re-set stones true to line and install dowels and cramps.
.4 Remove supports.
3.5 Re-Laying of Stone
.1 Prepare wall to receive stone.
.2 Obtain NCC Representative's approval of cleaning of core before commencing inserting stone.
.3 Mortar fill deep voids of cores to within 100 mm of back of stone in maximum 50 mm lifts. Build up thicknesses with stone pieces set in mortar to replace original bonding pattern of core to facework.
.4 Reconstruct masonry to ensure full embedding of grouted portion of anchors.
.5 Drill and set anchors as specified in applicable Sections. Allow period of curing as specified in applicable sections prior to drilling.
.6 Cut stones for connectors and support systems. Set connectors to face stone in appropriate sequence.
.7 Clean stone by washing with water and natural fibre brush before laying.
.8 Thoroughly dampen surfaces of core and apply mortar.
.9 Set stones plumb, true and level in full bed of mortar and with vertical joints filled full except where otherwise specified. Set stones in same orientation as removed stones with even joint widths.
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.10 Erect face stones ahead of core. Fill core with mortar and stone pieces. Size and position to interlock with face stones as found.
.11 Lay heavy stones and projecting stones after mortar in courses below has hardened sufficiently to support weight.
.12 Prop and anchor projecting stones until wall above is set.
.13 Set large stones on water soaked softwood wedges to support stone in proper alignment until mortar has set. Remove wedges when dry, do not break off.
.14 Remove mortar dropping from face of stone before mortar is set. Sponge stone free of mortar along joints as work progresses.
.15 Fill all voids around connectors with mortar type as specified.
3.6 Finish Pointing
.1 Rake back mortar joints and leave ready for finish pointing.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 43 Façades and Roofs Restoration HERITAGE – DISMANTLING STONE MASONRY National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Sections
.1 Section 02 41 21 - Selective Structure Demolition.
.2 Section 04 03 42 – Heritage - Replacement of Stone.
.3 Section 04 05 00 – Common Work Results for Masonry.
1.2 Storage and Protection
.1 Deliver, store, handle and protect materials in accordance with Section 01 61 00 "Common Product Requirements".
.2 Protect stone units and facilitate their reinstallation.
.3 Store dismantled stone masonry units in the designated area on site. Protect from exposure to water, elements, and potential mechanical damage under shelter or fully covered with polyethylene. Units are to be placed on wooden pallets and are not to sit directly on the ground. Should there be insufficient storage space on site, the contractor shall make arrangements to safely transport and store excess stone units off-site until required to be returned to the site. No additional costs can be claimed for off-site transport and storage.
.4 Stone units designated for replacement with new units are to be retained for repair of other units. Unused removed stone units are to be handed over to the NCC Representative. No stone units are to be disposed of without the NCC Representative's approval.
1.3 Shoring, cradling and temporary framing work
.1 Refer to Section 04 05 00 – Common Work Results for Masonry.
.2 Shoring and cradling, and other temporary framing work needed to support the structure shall be designed by a qualified structural engineer familiar with historic masonry structures and hired by the General Contractor. Shoring, cradling, and other temporary framing work design to be review and approved by the NCC Representative prior the work.
1.4 Sequencing
.1 Mark stones and other elements or components to show their identity and position in the building. Markings to be done with a stainless steel tag with the stone number and anchored at the back of the stone with a stainless steel fastener.
.2 General Contractor to take high definition general pictures (professional quality) of all areas to be dismantled and rebuild by façade (Type ‘’A’’ and Type ‘’B’’ dismantling – exterior and in the attic). All the stones to be dismantled on the pictures to be digitally numbered. General Contractor to submit the key- pictures to the NCC Representative for review and approval. Stone numbers on the pictures and on the stainless steel tags to be the same.
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.3 Keep the key-pictures up-to-date and, produce a copy following every modifications.
.4 Ensure that the key-pictures contains relevant information which will facilitate the reinstallation of each stone in its original location, as indicated on the drawings.
.5 Submit up-to-date copies of the key-picture as well as chronological information concerning each numbered unit (individual cards of units), when requested.
PART 2 PRODUCTS
2.1 Not Used
.1 Not Used.
PART 3 EXECUTION
3.1 Inspection
.1 Examine areas and conditions under which work is to be performed and notify the NCC Representative in writing of conditions detrimental to the proper and timely completion of the work.
3.2 Examination, Marking & Recording
.1 Before starting the work of this Section, follow the examination procedures specified in Section 04 03 41 "Repair of Stone". Mark stones and other elements or components to show their identity and position in the building. Markings to be done with a stainless steel tag with the stone number and anchored at the back of the stone with a stainless steel fastener.
3.3 Support
.1 Construct shoring and cradling, and other temporary framing work needed to support the structure, or parts of it, during removal operations and in anticipation of reinstallation, where the structure is not to be completely dismantled, according to approved drawings, prepared by and bearing the seal and signature of the structural engineer referred to paragraph 1.3 above.
3.4 Loosening Stones
.1 Rake-out all the mortar joints (as per section 04 03 07) and use approved methods to carefully loosen stones which will cause no damage either to stones or to other architectural elements.
.2 Do not use circular millstone or saw, pneumatic chisel, steel tools exerting concentrated pressure on edges of stone. Obtain the NCC Representative's approval for the use of power tools before commencing work.
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Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 43 Façades and Roofs Restoration HERITAGE – DISMANTLING STONE MASONRY National Capital Commission Page 3
.3 Loosen wet masonry only when the temperature is above 5 oC.
.4 The General Contractor to be responsible for damage to stones being removed, adjacent stonework designated to remain and other adjacent construction. Repair such damage to the satisfaction of the NCC Representative, at no additional cost to the Contract.
3.5 Handling
.1 The use of Lewis bolts for handling stone is not permitted.
.2 Place detached stones on wood surfaces during handling. Prevent contact with metal.
.3 When stones are lowered to the deck, place directly on wooden platforms that will be used for storage. Distribute stored stones so as to ensure that the structural loading capacity of the deck is not exceeded. Refer to Section 01 50 00 "Temporary Facilities" for structural analysis requirements.
.4 Ensure that sharp edges of stones do not come into contact with any hard object.
.5 Do not place stones directly on ground or vegetation.
.6 In freezing weather, keep stones dry.
.7 Protect wet stones from freezing.
3.6 Temporary Storage
.1 Place stones in a designated area for cleaning, detailed inspection and for final marking, before storage.
.2 Ensure that stones are accessible and easily removed, and placed so as to be retrieved and inspected quickly, when required.
3.7 Cleaning
.1 Do cleaning operations at above freezing temperature. After cleaning, protect wet stones against freezing until dry.
.2 Clean stones by wet scrubbing with vegetable fibre brush unless otherwise instructed by the NCC Representative. Do not use high pressure water jet.
.3 Remove excess mortar by hand. Use power tools only with the prior written approval of the NCC Representative.
.4 Ensure masonry does not dry out too quickly. The drying process of stones may be accelerated by fans or unit heaters.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 03 43 Façades and Roofs Restoration HERITAGE – DISMANTLING STONE MASONRY National Capital Commission Page 4
3.8 Storage
.1 When stones are placed under shelter, the shelter must be adequately ventilated and designed to keep condensation from forming on the internal surfaces of shelter.
.2 Lay out the storage so that each stone will have its numbered face visible, and be accessible or removable without having to move adjacent stones.
.3 Show the layout of stones to be stored on a record drawing and submit a copy to the NCC Representative.
3.9 Marking and reinstallation.
.1 Stainless steel tag to be removed right prior the stone reinstallation.
3.10 Stone Masonry Repair
.1 Repair individual stones as necessary in accordance with Section 04 03 41 "Repair of Stone”.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 05 00 Façades and Roofs Restoration COMMON WORK RESULTS FOR MASONRY National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Sections
.1 Section 01 45 17 - Masonry Conservator.
.2 Section 04 03 06 - Heritage - Cleaning Historic Masonry
.3 Section 04 03 07 - Heritage - Masonry Repointing and Repair
.4 Section 04 03 08 - Heritage - Mortaring.
.5 Section 04 03 42 - Heritage - Replacement of Stone.
.6 Section 04 05 19 - Masonry Reinforcement and Connectors.
.7 Section 04 21 13 - Brick Masonry.
.8 Section 07 92 10 - Joint Sealing.
1.2 References
.1 Canadian Standards Association (CSA): .1 CSA-A179-04, Mortar and Grout for Unit Masonry. .2 CSA-A371-04, Masonry Construction for Buildings.
.2 Health Canada/Workplace Hazardous Materials Information System (WHMIS). .1 Material Safety Data Sheets (MSDS).
1.3 Submittals
.1 Submit documents and samples in accordance with Section 01 33 00 - Submittal Procedures and as specified in related Sections.
.2 Product Data: submit manufacturer's printed product literature, specifications and data sheet for each product: .1 Indicate date of manufacture of product and shelf life. .2 Indicate initial rate of absorption, saturation coefficient and compressive strength of bricks. .3 Submit two copies of WHMIS MSDS - Material Safety Data Sheets. .4 Indicate VOC's for epoxy coatings and galvanized protective coatings and touch- up products for masonry reinforcement and connectors. .5 Indicate VOC's for joint fillers and lap adhesives.
.3 Table of anchors, cramps and dowels; include dimensions, shapes and assemblies for standard and non-standard items.
.4 Shop drawings: submit drawings for non-standard anchors, cramps and dowels.
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Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 05 00 Façades and Roofs Restoration COMMON WORK RESULTS FOR MASONRY National Capital Commission Page 2
.5 Stone cutting schedule; submit document indicating size of each block; quantity and sizes to be cut from each block, and marking number of each cut piece related to each block.
.6 Samples; submit: .1 One of each type of masonry accessory, anchor and reinforcing. .2 One of each mortar constituent in 500 ml plastic container with screw top lid. .3 Three of each type of stone, sized and dressed to match existing stone units with direction of bedding marked. Indicate visible markings and finish. .4 Two of each type of brick. .5 One of each type of cleaning material in 250 ml container with safety screw caps.
.7 Scheduling: Submit dates indicating critical stages in masonry work. Include supply date, completion of shop fabrication and delivery to site.
.8 Manufacturer's Instructions: Submit manufacturer's installation instructions.
.9 Test Reports: Submit certified test reports showing compliance of materials with specified performance characteristics and physical properties.
1.4 Quality Assurance - Execution
.1 Perform work under the supervision of the Masonry Conservator specified in Section 01 43 17.
.2 Perform work in accordance with established procedures for historic masonry conservation and The Standards and Guidelines for the Conservation of Historic Places in Canada, published by Parks Canada.
.3 Shoring and cradling, and other temporary framing work needed to support the structure shall be designed by a qualified structural engineer, familiar with historic masonry structures and licensed to practise in the Province of Ontario. Drawings to be stamped and signed by the aforementioned engineer.
1.5 Quality Assurance - Mock-Ups
.1 Construct mock-ups in accordance with Section 01 45 00 - Quality Control, as described herein and as specified in the applicable other Sections of the Specifications.
.2 Construct mock-ups under supervision of NCC Representative to demonstrate a full understanding of specified procedures, techniques and formulations are achieved before work commences.
.3 Construct mock-ups to illustrate: .1 Stone repair: Construct a mock-up of a representative sample of each type of repair. Include the following mock-ups: .1 Four fissure repairs .2 Four deep crack repairs .3 Five restoration mortar repairs .4 Four stone resetting repairs .5 Four in-situ fracture repairs .6 Four fracture repair, with stone removed .7 Two stone restoration repairs, on sandstone elements .8 Six Dutchman repairs. (two of each type, flat, templated and sculpted)
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.9 Five pin and fill stone consolidation treatment .10 Cavity preparation at three locations. .11 Repair mortar placement at four locations.
.2 Backpointing and repointing: Construct mock-up 1.5 m x 1.5 m to demonstrate raking out, backpointing and repointing procedure as per the following (imp: locations of all the tests to be identified by the NCC Representative once the scaffold is set up): .1 Raking out of joints .2 Backpointing of joints (1 test for each type of stonework and mortar type, including junctions at differing stonework and methodology to meet environmental requirements for mortar curing). .3 Front pointing of joint. One test for each type of mortar and each type of stonework, including junctions at differing stonework and methodology to meet environmental requirements for mortar curing.
.3 Cleaning: Each type of stone and each type of masonry cleaning specified in Section 04 03 06 - Historic Masonry Cleaning. Illustrate cleaning techniques required representative of full range of soiling or stains. Extents of mock-ups as indicated in section 04 03 06. Locations to be identified by the NCC Representative once the scaffold is set up.
.4 Stone, coursing or bond pattern, joints between units, and movement control joints.
.5 Backup wall, connectors and accessories.
.4 Allow samples to cure at least 5 days before obtaining the NCC Representative's approval for colour match. Samples shall be viewed from a distance of approximately 3.6 m.
.5 When accepted, mock-ups shall demonstrate the minimum standard for this work. Accepted mock-ups may remain as part of the finished work.
.6 Mock-up will be used: .1 To judge workmanship, substrate preparation, operation of equipment and material application. .2 For testing to determine compliance with performance requirements. .3 Quality and degree of finish required.
.7 Construct mock-up where indicated by NCC Representative. .1 Coordinate and sequence activities accordingly.
.8 Allow 72 hours for inspection of mock-up by NCC Representative before proceeding with work.
.9 Repeat mock-up until satisfactory results are obtained to satisfaction of NCC Representative (above and beyond the mock-up quantities mentioned in the specifications).
.10 When accepted by NCC Representative in writing, mock-up will demonstrate minimum standard for this work. Mock-up may remain as part of finished work.
1.6 Quality Assurance - Reviews
.1 Make mason's workshop accessible to NCC Representative for review of current work-in- progress. 1.7 Delivery, Storage, and Handling
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 05 00 Façades and Roofs Restoration COMMON WORK RESULTS FOR MASONRY National Capital Commission Page 4
.1 Deliver, store, handle and protect materials in accordance with Section 01 61 00 - Common Product Requirements.
.2 Deliver materials to job site in dry condition.
.3 Storage and Protection: .1 Keep materials dry until use except where wetting of bricks or stone is specified. Protect from freezing and contamination. .2 Store under waterproof cover on pallets or plank platforms held off ground by means of plank or timber skids.
.4 Do not use materials which have exceeded manufacturer's recommended shelf life.
.5 Comply with the requirements of Workplace Hazardous Materials Information System (WHMIS) regarding use, handling, storage and disposal of hazardous material; and regarding labelling and the provision of Material Safety Data Sheets.
1. 8 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction/Demolition Waste Management and Disposal.
.2 Remove from site and dispose of packaging materials at appropriate recycling facilities.
.3 Collect and separate for disposal paper, plastic, polystyrene, and corrugated cardboard packaging material for recycling in accordance with Waste Management Plan.
.4 Unused metal materials are to be diverted from landfill to a metal recycling facility as approved by NCC Representative.
.5 Unused or damaged masonry materials must be diverted from landfill to a local facility as approved by NCC Representative.
.6 Identify hazardous and related materials which cannot be reused, are regarded as hazardous products and are subject to regulations for disposal. Information on these controls can be obtained from the Provincial Ministries of Environment and Regional Levels of Government.
.7 Safely store materials defined as hazardous or toxic waste, including emptied containers and application apparatus, in containers or areas designated for hazardous waste and dispose of contaminants in an approved legal manner.
.8 Place materials defined as hazardous or toxic in designated containers.
.9 Handle and dispose of hazardous materials in accordance with applicable federal, regional and municipal regulations.
.10 Do not dispose of unused materials into sewer systems, into lakes, streams, onto ground or in other location where they will pose health or environmental hazard
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 05 00 Façades and Roofs Restoration COMMON WORK RESULTS FOR MASONRY National Capital Commission Page 5
.11 Fold up metal banding, flatten, and place in designated area for recycling.
1. 9 Environmental Requirements
.1 Execute all mortar work when ambient temperature is between 15 oC and 25oC and Relative Humidity (RH) is greater than 50% during installation. .1 Curing conditions for repointing mortars: maintain for a period of 7 days, 100% humidity. .2 Curing conditions for repair mortars: maintain for a period of 12 days, 100% humidity.
.2 When ambient conditions do not meet requirements prescribed herein, provide enclosure system around curing area to ensure that stated environmental conditions are maintained for curing period. Take precautions to avoid overheating masonry. .1 The use of heated temporary enclosures to maintain temperatures above 10 oC in cold weather is subject to the written approval of the material manufacturer and the NCC Representative. .2 Submit enclosure system for approval from NCC Representative in accordance with Section 01 33 00 - Submittal Procedures.
.3 Remove work exposed to lower temperatures as directed by the NCC Representative.
.4 Hot Weather Requirements: .1 Protect repair mortar from direct sunlight and wind when the ambient air temperature exceeds 21 oC. .2 Use protection methods acceptable to the NCC Representative. .3 Keep repaired area humid for a period of 7 days for a proper cure. .4 Do not use or prepare mortar when the ambient air temperature is above 32 oC at the location of the work.
PART 2 PRODUCTS
2.1 Materials
.1 Refer to related sections for stone, brick, related materials, accessories and material preparation procedures.
.2 Burlap: clean, non-staining, free of printed matter, to NCC Representative's approval.
.3 Plumber's hemp: asbestos-free, oil- free jute rope.
2.2 Source Quality Control
.1 Retain purchase orders, invoices, suppliers test certificates and documents to prove that materials used in contract meet requirements of specification.
.2 Produce above upon request by NCC Representative and allow free access to sources where materials were procured.
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PART 3 EXECUTION
3.1 Manufacturer's Instructions
.1 Compliance: comply with manufacturer's written data, including product technical bulletins, product catalogue installation instructions, product carton installation instructions, and data sheets.
3.2 Site verification of conditions
.1 Report in writing, to NCC Representative, areas of deteriorated masonry revealed and not conforming to specified requirements of the Work.
.2 Once the scaffold is set up, providing access to all walls areas, obtain NCC Representative's review, approval and instructions for each specified repair and replacement of masonry units before proceeding with repair work.
.3 Obtain NCC Representative’s review and approval after the raking out of the mortar joints and prior the backpointing / repointing work. See section 04 03 07 for complementary information.
3.3 Protection
.1 Provide safe containment, collection and removal of sandstone and sandstone dust.
.2 Ensure workers are informed of hazards and trained in procedures prior to commencing work. Ensure workers wear protective clothing during work on sandstone.
.3 Where cutting out of sandstone produces sandstone dust particles, take the following measures. .1 Use wet techniques to eliminate dust. .2 Work in sealed enclosure and maintain a negative vacuum system complete with NIOSH approved vacuum and filters. .3 Prevent transmission of airborne dust particles beyond sealed enclosure. .4 Remove residual dust particles daily from sealed enclosure. Maintain work areas in dust- free condition. .5 Prior to commencing work, provide temporary materials and take necessary measures, to prevent ingress of dust into building. Immediately remove dust entering building and make corrective measures to NCC Representative's approval, before continuing work.
3.4 Preparation
.1 Inspect site with NCC Representative and verify extent and location of mortar types prior to commencing installation.
.2 Support: .1 Construct shoring, cradling, and temporary framing work to support structure parts during removal and resetting operations, in accordance with approved drawings. Drawings to be stamped and signed by engineer experienced with historic masonry structures and registered in Province of Ontario.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 05 00 Façades and Roofs Restoration COMMON WORK RESULTS FOR MASONRY National Capital Commission Page 7
.2 Leave work in safe condition when work is not in progress.
.3 Take utmost care not to damage historic fabric. Make good any damage.
.4 Seal and protect openings, doors, windows, and adjacent areas to prevent damage and spread of construction dust, water or other materials into the building.
.5 Cover sills and projecting courses with rigid protection, secured into joints, for duration of work.
.6 Prevent scaffolding, hoists or construction equipment from bearing directly against masonry or roof. Provide lumber or plywood with padding of sufficient thickness to prevent damage.
.7 Obtain NCC Representative's approval prior to proceeding, for: .1 Extent and type of stone to be replaced, repaired or removed. .2 Methodology and tools to be employed before commencing work.
.8 Determine precise exterior wall thicknesses at each level of building by drilling minimal size pilot holes. Repair and make good holes to match existing condition.
3.5 Installation
.1 Do masonry work in accordance with CSA-A371 except where specified otherwise.
.2 Build masonry plumb, level, and true to line, with vertical joints in alignment.
.3 Lay out coursing and bond to achieve correct coursing heights, and continuity of bond above and below openings, with minimum of cutting.
.4 Prevent materials from entering or penetrating wall cavities of building. Report findings of materials to NCC Representative before continuing with work.
3.6 Construction
.1 Remove, repair and replace masonry as indicated.
.2 Jointing: .1 Allow joints to set just enough to remove excess water, then finish joint as specified. .2 Finish brick masonry joints to match existing. .3 Finish stone joints as specified in Section 04 03 07 – Historic Masonry Repointing and Repair.
.3 Cutting: .1 Cut out for electrical switches, outlet boxes, and other recessed or built-in objects. .2 Make brick cuts straight, clean, and free from uneven edges.
.4 Building-In: .1 Build in items required to be built into masonry. .2 Prevent displacement of built- in items during construction. Check plumb, location and alignment frequently, as work progresses.
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.5 Wetting of bricks: .1 Except in cold weather, wet bricks having an initial rate of absorption exceeding 1 g/minute/1000 mm 2: wet to uniform degree of saturation, 3 to 24 hours before laying, and do not lay until surface dry. .2 Wet tops of walls built of bricks qualifying for wetting, when recommencing work on such walls.
.6 Interface with other work: .1 Cut openings in existing work as indicated on drawings (ex: concrete floor cutting to get access to the floor structure). .2 Openings in walls: approved by NCC Representative prior to commencing the work. .3 Make good existing work. Use materials to match existing. .4 Finish all existing metal elements found within masonry assemblies, or that are in contact with masonry, in accordance with Section 09 91 10 - Painting.
3.7 Site Tolerances
.1 Tolerances in notes to Clause 5.3 of CSA-A371 apply.
3.8 Field Quality Control
.1 Testing on all types of mortars in the project (bedding mortar, front pointing mortar and backpointing mortar) shall be carried out by a Testing Laboratory designated by the NCC Representative and engaged by the NCC. The laboratory tests shall occur once a week (2 tests on each type of mortar) during the entire mortaring operations throughout the project on all types of mortars. The tests shall be done with on- site fresh samples and shall include the compressive strength at 7 days and 28 days, air entrainment %age, vicat cone testing (mortar only) and flexural strength.
3.9 Cleaning
.1 Perform cleaning after installation to remove construction and accumulated environmental dirt.
.2 Upon completion of installation, remove surplus materials, rubbish, tools and equipment barriers.
3.10 Protection
.1 At end of each working day, cover unprotected work with waterproof membranes. Membranes should extend to 0.5 m over surface area of work and be tightly installed to prevent finished work from drying out too rapidly.
.2 Protect masonry and other work from marking and impact damage. Protect completed work from mortar droppings. Use non-staining coverings.
.3 Maintain protection for minimum three weeks.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 05 19 Façades and Roofs Restoration MASONRY REINFORCEMENT AND CONNECTORS National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Sections
.1 Section 04 03 42 – Heritage - Replacement of Stone.
.2 Section 04 05 00 - Common Work Results for Masonry.
.3 Section 04 21 13 - Brick Masonry.
1.2 References
.1 American Society for Testing and Materials (ASTM): .1 ASTM A580/A580M-06, Standard Specification for Stainless Steel Wire. .2 ASTM A666-03, Standard Specification for Annealed or Cold- Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar.
.2 Canadian Standards Association (CSA): .1 CSA-A179-04, Mortar and Grout for Unit Masonry. .2 CSA-A370-04, Connectors for Masonry. .3 CSA-A371-04, Masonry Construction for Buildings. .4 CSA-S304.1-04, Design of Masonry Structures. .5 CAN/CSA-A23.1-04, Concrete Materials and Methods of Concrete Construction.
1.3 Submittals
.1 Submit documents and samples in accordance with Section 04 05 00 - Common Work Results for Masonry.
1.4 Quality Assurance
.1 Submit test reports and certificates in accordance with Section 04 05 00 - Common Work Results for Masonry.
1.5 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction/Demolition Waste Management and Disposal and Section 04 05 10 - Common Work Results for Masonry.
PART 2 PRODUCTS
2.1 Materials
.1 Connectors including wall ties, anchors, dowels and cramps: to CSA- A370 and CSA-S304.1.
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Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 05 19 Façades and Roofs Restoration MASONRY REINFORCEMENT AND CONNECTORS National Capital Commission Page 2
.2 Resin: two part epoxy resin system, low viscosity, high modulus, moisture insensitive, UV stable (non- yellowing).
.3 Dowels for Pinning Across Cracks: stainless steel to ASTM A580, type 316, nominal 2 to 6 mm diameter, threaded, size to NCC Representative's approval.
.4 Dowels for Setting Stone: stainless steel to ASTM A580, Type 316, from 6 to 13 mm diameter, threaded, size to NCC Representative's approval.
.5 Cramps: stainless steel to ASTM A666, type 316, standard hooked bar or strap anchor, nominal 6 mm thickness x 25 mm, length and design to suit application.
2.2 Fabrication
.1 Fabricate connectors in accordance with CSA-A370.
PART 3 EXECUTION
3.1 Manufacturer's Instructions
.1 Compliance: comply with manufacturer's written data, including product technical bulletins, product catalogue installation instructions, product carton installation instructions, and data sheets.
3.2 General
.1 Install masonry connectors in accordance with CSA-A370, CSA-A371, CAN/CSA-A23.1 and CSA-S304.1 unless indicated otherwise.
.2 Prior to placing mortar and grout, obtain NCC Representative's review of placement of connectors.
.3 Install dowels in stone with resin.
.4 Install cramps in stone with grout.
3.3 Bonding and Tying
.1 Bond, tie and place anchors in walls in accordance with CSA-S304, CSA-A371 and as indicated.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 21 13 Façades and Roofs Restoration BRICK MASONRY National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Sections
.1 Section 04 03 07 - Heritage - Masonry Repointing and Repair.
.2 Section 04 03 08 - Heritage - Mortaring.
.3 Section 04 05 00 - Common Work Results for Masonry.
.4 Section 04 05 19 - Masonry Reinforcement and Connectors.
1.2 References
.1 Canadian Standards Association (CSA): .1 CSA-A82-06, Fired Masonry Brick Made from Clay or Shale.
1.3 Submittals
.1 Submit documents and samples in accordance with Section 04 05 10 - Common Work Results for Masonry.
1.4 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction/Demolition Waste Management and Disposal, and Section 04 05 00 - Common Work Results for Masonry.
PART 2 PRODUCTS
2.1 Manufactured Units
.1 Burned clay face brick: to CSA-A82. .1 Type: FBS. .2 Grade: SW. .3 Maximum absorption: 5%. .4 Maximum saturation coefficient: 0.78. .5 Minimum compressive strength: 55 MPa. .6 Size to match existing bricks. .7 Colour: to match existing bricks (NCC Representative to approve colour)
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Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 04 21 13 Façades and Roofs Restoration BRICK MASONRY National Capital Commission Page 2
PART 3 EXECUTION
3.1 Manufacturer's Instructions
.1 Compliance: comply with manufacturer's installation instructions and data sheets.
3.2 Removal of Existing Brick
.1 Verify with NCC Representative, locations and dimensions of areas of work, and methods required at junctions with brick to remain.
.2 Use mechanical hand methods of removal. Obtain NCC Representative's approval for use of power tools before commencing work.
.3 Carefully dismantle walls. Leave adjacent brick designated to remain clean and free of mortar, chips and cracks, and ready to receive new materials.
3.3 Installation
.1 Do masonry work in accordance with Section 04 05 00 - Common Work Results for Masonry.
.2 Bond, coursing and jointing: to match existing.
.3 Do tying in accordance with Section 04 05 19 - Masonry Reinforcement and Connectors.
.4 Clean masonry as work progresses.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 05 01 70 Façades and Roofs Restoration DECORATIVE METAL RESTORATION National Capital Commission Page 1
PART 1 GENERAL
1.1 Summary of Work
.1 Work Included: .1 The work of this Section includes all labour, materials, equipment and services required to remove, repair, re-finish and re-install decorative metal elements, as indicated on the drawings, as specified herein and as required for a complete project. .2 The work includes, but is not necessarily limited to: .1 Removal of decorative metal elements. .2 Sandblasting to white metal. .3 Making good damage, including the replacement of deteriorated portions. .4 Hot-dip galvanizing. .5 Re-installation.
.2 Related Sections: .1 Section 02 41 19 - Selective Demolition. .2 Section 04 03 41 - Stone Repair".
1.2 References
.1 Canadian Standards Association (CSA): .1 CAN/CSA-G40.21-04, Structural Quality Steels. .2 CAN/CSA-G164-M92(R2003), Hot Dip Galvanizing of Irregularly Shaped Articles. .3 CSA-W59-03, Welded Steel Construction (Metal Arc Welding).
.2 Master Painters Institute (MPI): .1 MPI Architectural Specification Manual, 2004 (referred to herein as "MPI Manual") .2 MPI Approved Product List, January 2009 (Referred to herein as "MPI APL").
.3 The Society for Protective Coatings (SSPC): .1 SSPC-SP5/NACE No.1-2007, White Metal Blast Cleaning.
1.3 Design Requirements
.1 These are historic buildings. The intent is to repair the existing fabric wherever possible rather than to replace it. Repairs shall exactly match the existing metalwork.
1.4 Qualifications
.1 The work of this Section shall be executed by firm with minimum five years documented experience in historical conservation work of a comparable nature, using similar repair techniques.
.2 Tradesmen shall be experienced in work of this kind and shall demonstrate reasonable care during the execution of the work of this Section.
1.5 Pre-Installation Conference
.1 Review with the NCC Representative on site the locations where portions of assemblies or entire assemblies need to be replaced.
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1.6 Field Measurements
.1 The assemblies might not be interchangeable. Do not interchange them even if they are interchangeable. Number each assembly and return them to their original locations in the building.
.2 Take field measurements to verify sizes of replacement or new assemblies.
PART 2 PRODUCTS
2.1 Materials
.1 Steel sections and plates: to CAN/CSA-G40.21-M87, grade 300W.
.2 Welding materials: to CSA-W59-M1989
.3 Fasteners: Anchors to suit site conditions and to the NCC Representative 's approval, hot-dip galvanized steel or stainless steel.
.4 Cementitious primer for shop application and on-site touch-up prior to finish painting: Cementitious galvanized metal primer to MPI APL #26.
.5 Touch-up primer for galvanized metal surfaces: Inorganic zinc-rich primer to MPI APL #19.
PART 3 EXECUTION
3.1 Examination
.1 Fully determine the Scope of Work by site inspection with the NCC Representative .
.2 Examine areas and conditions under which work is to be performed and notify the NCC Representative in writing of conditions detrimental to the proper and timely completion of the work.
.3 Do not proceed with the work until unsatisfactory conditions have been corrected to the satisfaction of the installer.
.4 Take field measurements to verify or supplement dimensions.
.5 Commencement of the installation will be construed as acceptance of the site conditions and, thereafter the Contractor shall be fully responsible for satisfactory work as specified herein.
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3.2 Removal of Decorative Metal Elements
.1 Carefully remove existing decorative metal elements.
.2 Disconnect fastenings to masonry work. Avoid damaging masonry work.
.3 Patch redundant holes in masonry surfaces as specified in Section 04 03 41 "Stone Repair".
3.3 Repair of Decorative Metal Elements
.1 Remove, replace and make good, as applicable, damaged and defective portions of the decorative metal. Cut out severely deteriorated portions and weld in replacement material if necessary.
.2 Do welding work to CSA-W59.
.3 Grind welded joints to a flat plane, fill with metallic paste filler and sand to uniform smooth finish.
.4 Repair work shall match exactly the original assembly and the repairs shall be inconspicuous through paint coats.
.5 Prepare metal surfaces by sandblasting to SSPC-SP5. Surfaces shall be free of all visible oil, grease, dust, dirt, mill scale, rust, coating, oxides, corrosion products, and other foreign matter.
.6 Immediately after preparation of surfaces, hot-dip galvanize decorative metal elements to CAN/CSA-G164, 600 g/m 2 zinc coating weight.
.7 After galvanizing, shop-apply one coat of cementitious primer, MPI APL #26.
3.4 Reinstallation
.1 Re-install decorative metal elements in their original locations, level, plumb and in true alignment.
.2 Fasten securely in place using appropriate galvanized or stainless steel anchors.
3.5 Painting
.1 Refer to Section 09 91 13 for painting.
.2 Prior to executing finish painting, touch up surfaces which have been damaged by subsequent work. .1 Where the cementitious coating has been disturbed touch-up with cementitious primer, MPI APL #26. .2 Where the galvanizing has been damaged, remove any accumulated rust and touch up with zinc-rich primer, MPI APL #26.
3.6 Cleaning
.1 Upon completion of the installation, remove from the premises all surplus material, dirt and debris caused by the work of this Section and leave the installation clean.
.2 Make good any damage caused by the work of this Section.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 06 03 20 Facades and Roofs Restoration WOOD REPAIR National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Documents
.1 Drawings and general provisions of the Contract and Division 1 Specification Sections, apply to this Section.
1.2 Summary of Work
.1 Work Included: .1 The work of this Section includes the provision of all labour, materials, equipment and services required to restore existing exterior woodwork, as indicated on the drawings, as specified herein and as required for a complete project.
.2 The work includes, but is not necessarily limited to, epoxy consolidation and patching with wood dutchmen inserts where the wood is irreparably deteriorated or is missing.
1.3 References
.1 Canadian Standards Association (CSA): .1 CSA-O112-Series M1977 (R2001), CSA Standards for Wood Adhesives.
1.4 Design Requirements
.1 These are historic buildings. The intent is to repair the existing fabric wherever possible rather than to replace it. The repairs are to exactly match the existing woodwork.
1.5 Submittals
.1 General: Submit each item in this Article according to the Conditions of the Contract and the applicable Division 01 Specification Sections.
.2 Product Data: .1 Submit product data for: .1 Waterproof wood adhesive. .2 Consolidant Materials. .3 Semi-rigid patching compound materials. .2 Include application instructions for specified materials. .3 Include manufacturer's material safety data sheets for the safe handling of the specified materials and products, in accordance with Workplace Hazardous Materials Information Service (WHMIS) requirements.
.3 Samples: Provide two sealed, screw-top, one-litre plastic containers of the following: .1 Consolidant. .2 Semi-rigid patching compound.
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1.6 Quality Assurance
.1 Qualifications: .1 The work of this Section shall be executed by a company which specializes in work of this nature, using skilled tradesmen with a minimum of five years documented successful experience using similar repair techniques. .2 If requested by the NCC Representative, provide evidence of previously completed projects of a similar nature.
.2 Pre-installation Conference: Meet with the NCC Representative to .1 review existing conditions, and .2 determine the sizes and locations of the test sample.
.3 Test Sample: .1 Perform a sample repair on site for the NCC Representative's review for method, effectiveness, and appearance. .2 Locate where directed by the NCC Representative. .3 The reviewed and accepted sample repair will be the standard of acceptance for the work of this Section.
1.7 Delivery, Storage & Handling
.1 Deliver products in original unopened packaging with legible manufacturers' identification.
.2 Store materials in strict accordance with the manufacturers' recommendations, indoors in a dry, fireproof area.
1.8 Warranty
.1 For the work of this Section, the 12-months warranty period prescribed in the General Conditions of the Contract is extended to 3 years.
.2 Repairs of warranted work shall include removal and reinstatement of related finishes and the making good of any other work damaged or disturbed by the warranty work.
PART 2 PRODUCTS
2.1 General
.1 This specification is based on epoxy formulations by Crosslink Technology, (800) 563-3769.
.2 Requests for substitutions will be considered in accordance with provisions of Section 01 00 00 "General Requirements". Acceptance of alternative products is subject to the approval of the NCC Representative.
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2.2 Materials
.1 Patching Lumber: .1 At time of installation, moisture content of wood to be between 5% and 9% for interior wood and between 10% and 15% for wood exposed to the exterior. .2 Use only straight, sawn square and true material. .3 Match wood species and grain to adjacent work.
.2 Adhesive for Wood: Waterproof synthetic resinous adhesive to CSA-0112, of type approved for general carpentry work.
.3 Bleach: 10 Sodium Hypochlorite. Standard of acceptance: Javex bleach.
.4 Detergent: Non-ionic detergent only. Acceptable products: .1 Igepal by GAP. .2 Tergitol by Union Carbide. .3 Triton by Rohm & Haas. .4 Approved equivalent.
.5 Paint Stripper: Methylene-chloride solvent based only. Do not use sodium hydroxide (lye) based strippers. Acceptable products: .1 Lasco 106 by Lawrason's Chemicals Ltd. .2 Sure-klean 509 by Pro-So-Co Ltd. .3 Approved equivalent.
.6 Fasteners: Brass or stainless steel nails and screws.
.7 Consolidation materials distributed by Abatron or approved equivalents: .1 Liquid Wood from Abatron .2 Epoxy Resin 332 by Dow Chemical. .2 Epoxy Diluent RD2, by Ciba-Geigy. .3 Jeffamine D230 (Flexibilising Amine Curing Agent) by Jefferson Chemical. .4 Approved equivalent.
.8 Flexible patching compound materials distributed by Abatron or approved equivalent: .1 Wood-Epox from Abatron .2 Epoxy Resin 331 (epoxy resin) by Dow Chemical or approved equivalent. .3 One of the following products: .1 LP-3 (polysulphide rubber) by Thiokol Chemical .2 Versamid 140 by Versamid Chemical .3 Approved equivalent. .4 EH-330 (amine curing agent) by Thikol Chemical or approved equivalent. .5 BJO-0930 (Phenolic microballoons) by Union Carbide Corp or approved equivalent. 6 Aerosil 200 (fumed silica) manufactured by Degussa Canada Inc. or approved equivalent.
2.3 Mixes
.1 Consolidant: Blend the following components by weight to make: .1 Consolident Part A: .1 DER 332: 100 parts .2 RD2: 100 parts
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 06 03 20 Facades and Roofs Restoration WOOD REPAIR National Capital Commission Page 4
.2 Consolidant Part B: .1 D230: 75 parts
.2 Flexible Patching Compound: .1 Prepare compound in two parts for final mixing on site. Do not mix parts before use. Use separate mixing containers and spoons etc., labelled for each part. .2 Blend compounds by weight to make: .1 Part A: .1 DER 331: 8 parts .2 Part B: .1 LP-3: 7 parts .2 EH 330: 1 part .3 Part C: .1 Fumed Silica: 1 part .2 Micro-balloons: 2 parts .3 Then prepare pre-mixed compounds by weight: .1 Patching compound Part A: .1 Part A: 16 parts, blended with .2 Part C: 3 parts .2 Patching compound Part B: .1 Part B: 8 parts, blended with .2 Part C: 3 parts
.3 Store each pre-mixed compound in separate sealed containers for use on site and label: "PATCHING COMPOUND"- "PART A" and "PART B" respectively.
PART 3 EXECUTION
3.1 Examination
.1 Examine areas and conditions under which work is to be performed, fully determine the scope of repairs intended and notify the NCC Representative in writing of conditions detrimental to the proper and timely completion of the work.
.2 Do not proceed with the work until unsatisfactory conditions have been corrected.
.3 Verify proposed schedule of repairs and obtain acceptance for any additional work before proceeding.
3.2 Protection
.1 Protect all adjacent areas and adjoining materials against damage.
.2 Provide protection against the spread of dust and residues into the environment at or beyond the work area.
3.3 Installation and Application
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.1 Examination and Paint Stripping: .1 Examine woodwork to determine extent and method of repairs required. .2 Strip paint from affected area of woodwork with paint stripper.
.2 General Overhaul of Woodwork: .1 Remove rotted wood from trim, sashes, doors, and/or framing members as directed. .2 Scrub all affected surfaces of wood with bleach and detergent mixture in water to remove and kill fungus. Rinse with water. Rinse with bleach mixture. Allow to dry. .1 Bleach and detergent mixture: Mix 1 litre bleach with 50 ml detergent with 200 ml Tri-sodium phosphate and 3 litres of water to create cleaning solution. .2 Bleach mixture: Mix bleach and water 1:1. .3 Take apart removable sections of woodwork and reset after repair of individual pieces. .4 Brush-apply consolidant mixture to strengthen deteriorated wood, as specified in this Section. .5 Insert one-piece wood dutchman into large voids. Set dutchman with grain in same direction as wood piece being repaired. .6 Bed dutchman in semi-rigid patching compound. Fill all voids. .7 Fill all open edge grain, checks, vanes and knot holes with epoxy-resin semi-rigid patching compound specified in this Section. .8 After curing, sand down repairs for refinishing.
.3 Consolidation of Deteriorated Wood: .1 Complete all stripping and bleaching before starting consolidation. .2 Wood must be below 15% moisture content when consolidant is applied. .3 Treat soft, punky, and weathered wood with brush-applied consolidant mixture before filling with semi-rigid patching compound. .4 Drill 6 mm diameter holes about 50 mm o.c. at 45o downward from the face plane to allow for full impregnation of the grain. Do not drill through the full thickness of the wood as this would allow resin to escape below. .5 Plug holes in the edges of wood that might leak with Plasticine modelling clay before applying mixed consolidant. .6 To make consilidant: Mix 2 volumes of Part A Consolidant with 1 volume of Part B Consolidant. Mix thoroughly with an electric drill propeller blade for at least two minutes. Tap off excess consolidant from mixer into a bucket and wipe drill blade with paper towels immediately after mixing. .7 Half fill a plastic ketchup squeeze bottle with mixed consolidant and inject consolidant into the holes in the wood. Allow consolidant to seep into the wood. Repeat as necessary. The intent is to saturate the grain of the wood as deeply as possible. .8 Brush any consolidant standing on the surface of the wood into the grain. When saturated, wipe off surplus consolidant with paper towels. Remove all consolidant standing on the surface. Allow consolidant to cure 24 hours at room temperature. Allow to cure longer at lower temperature.
.4 Flexible Epoxy Patching of Voids in Wood: .1 Apply semi-rigid patching compound only after consolidation of woodwork. .2 Fill all open edge grin, checks, wanes, knot holes and voids with semi-rigid patching compound. .3 Work mixed patching compound into the crevices and finish slightly above the surface of the wood. Patching compound can be used as a bedding adhesive for dutchmen inserts and as a large-volume filler. .4 Mix Patching Compound Part A and Patching Compound Part B in equal parts by volume. Keep above 21 oC to facilitate mixing. .5 Hand-mix the compound vigorously for three minutes. Thorough mixing is vital to ensure proper curing of the epoxy resin. The final product has the viscosity of a heavy paste. .6 The effective pot life of the patching compound is about 20 minutes. Mix only enough patching compound that can be used within this time. Ensure that all preparation is complete before mixing patching compound. Clean up all tools and containers with zylor immediately after use. Ensure that all
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 06 03 20 Facades and Roofs Restoration WOOD REPAIR National Capital Commission Page 6
compound is removed from tools to prevent contamination of next mix. .7 Allow patching com pound to cure overnight at above 10 oC, longer at lower temperatures. When properly cured the compound will be a rubbery, semi-rigid material that can be carved, planed, sanded and painted easily. .8 Shave cured, exposed compound down to the original surface with woodworking tools.
3.4 Cleaning
.1 Upon completion of the work of this Section, remove from the premises all surplus material, dirt and debris caused by the work of this Section and leave clean and ready for the following trades.
.2 Clean any drippage and spills of surplus resins or paint from adjacent surfaces and make good any damage to finishes or materials caused by the work of this Section.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 06 20 00 Facades and Roofs Restoration FINISH CARPENTRY National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Requirements
.1 06 03 20 - Wood Repair
1.2 References
.1 Architectural Woodwork Manufacturers Association of Canada (AWMAC) and Architectural Woodwork Institute (AWI): .1 Architectural Woodwork Quality Standards, 1st edition, 2009.
.2 American Society for Testing and Materials (ASTM): .1 ASTM A123-09 / A123M-09, Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.
.3 Canadian Standards Association (CSA): .1 CSA-B111-1974(R2003), Wire Nails, Spikes and Staples. .2 CAN/CSA-O141-05, Softwood Lumber.
.4 National Lumber Grades Authority (NLGA) .1 NLGA Standard Grading Rules for Canadian Lumber 2008.
1.3 Action and Informational Submittals
.1 Provide submittals in accordance with Section 01 33 00 - Submittal Procedures.
.2 Shop Drawings: Coordinate with Section 06 03 20 - Wood Repair and provide shop drawings for the guardrail/handrail assembly. .1 Indicate details of construction, profiles, jointing, fastening and other related details. .2 Indicate materials, thicknesses, finishes and hardware.
1.4 Quality Assurance
.1 Lumber by grade stamp of agency certified by Canadian Lumber Standards Accreditation Board (CLSAB).
1.5 Delivery, Storage and Handling
.1 Deliver, store and handle materials in accordance with Section 01 61 00 - Common Product Requirements.
.2 Storage and Handling Requirements: .1 Store materials in clean, dry, well-ventilated area. .2 Store and protect wood products from nicks, scratches, and blemishes. .3 Replace defective or damaged materials with new.
.3 Packaging Waste Management: remove packaging materials for reuse as specified in Construction Waste Management Plan] [Waste Reduction Workplan in accordance with Section 01 74 21 - Construction /
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 06 20 00 Facades and Roofs Restoration FINISH CARPENTRY National Capital Commission Page 2
Demolition Waste Management and Disposal.
PART 2 PRODUCTS
2.1 Materials
.1 Softwood lumber: Pine species, S4S, moisture content 19% or less in accordance with AWMAC custom grade.
2.2 Accessories
.1 Nails and staples: to CSA B111; galvanized to ASTM A123 for exterior work.
.2 Wood screws: stainless steel, type and size to suit application.
PART 3 EXECUTION
3.1 Examination
.1 Verification of Conditions: verify conditions of substrates previously installed under other Sections are acceptable for guard and handrail installation in accordance with the reviewed and accepted shop drawings. .1 Visually inspect substrate in presence of NCC Representative. .2 Inform NCC Representative of unacceptable conditions immediately upon discovery. .3 Proceed with installation only after unacceptable conditions have been remedied and after receipt of written approval to proceed from NCC Representative.
3.2 Installation
.1 Do finish carpentry to Quality Standards of (AWMAC), Custom Grade.
.2 Scribe and cut as required, fit to abutting surfaces, fit properly into recesses and to accommodate projecting, intersecting or penetrating objects.
.3 Form joints to conceal shrinkage.
3.3 Construction
.1 Fastening: .1 Position items of finished carpentry work accurately, level, plumb, true and fasten or anchor securely. .2 Design and select fasteners to suit size and nature of components being joined. Use proprietary devices as recommended by manufacturer. .3 Set finishing nails to receive filler. Where screws are used to secure members, countersink screw in round smooth cut hole and plug with wood plug to match material being secured. .4 Replace items of finish carpentry with damage to wood surfaces including hammer and other bruises.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 06 20 00 Facades and Roofs Restoration FINISH CARPENTRY National Capital Commission Page 3
.2 Guards and handrails: .1 Install guards and handrails in locations indicated. .2 Secure using counter sunk screws plugged with matching wood plugs.
3.4 Cleaning
.1 Progress Cleaning: clean in accordance with Section 01 74 11 - Cleaning. .1 Leave Work area clean at end of each day.
.2 Final Cleaning: upon completion remove surplus materials, rubbish, tools and equipment in accordance with Section 01 74 11 - Cleaning.
.3 Waste Management: separate waste materials for reuse and recycling in accordance with Section 01 74 21 - Construction / Demolition Waste Management and Disposal. .1 Remove recycling containers and bins from site and dispose of materials at appropriate facility.
3.5 Protection
.1 Protect installed products and components from damage during construction.
.2 Repair damage to adjacent materials caused by finish carpentry installation.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 07 21 13 Facades and Roofs Restoration BOARD INSULATION National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Sections
.1 Section 07 31 13 – Asphalt Singles.
.2 Section 07 52 00 – Modified Bituminous Membrane Roofing
.3 Section 07 61 00 – Sheet Metal Roofing
.4 Section 07 62 00 – Sheet Metal Flashing and Trim.
.5 Section 31 23 10 - Excavating, Trenching and Backfilling.
.6 Section 33 46 13 - Foundation Drainage.
1.2 References
.1 American Society for Testing and Materials (ASTM): .1 ASTM C1289-10, Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board.
.2 Canadian General Standards Board (CGSB): .1 CGSB-71-GP-24M-77(+Amdt.1983), Adhesive, Flexible, for Bonding Cellular Polystyrene Insulation.
.3 Health Canada/Workplace Hazardous Materials Information System (WHMIS) .1 Material Safety Data Sheets (MSDS).
.4 Underwriters Laboratories of Canada (ULC): .1 CAN/ULC-S701-05, Standard for Thermal Insulation, Polystyrene Boards and Pipe Covering.
1.3 Single Source Responsibility
.1 Engage a single Subcontractor to assume undivided responsibility for the installation of the insulation associated with the roofing work, the foundation work and sheet metal flashing and trim specified in Section 07 62 00.
1.4 Submittals
.1 Product Data: .1 Submit manufacturer's printed product literature, specifications and data sheet in accordance with Section 01 33 00 - Submittal Procedures. .2 Submit two copies of WHMIS MSDS Material Safety Data Sheets in accordance with Section 01 35 29 - Health and Safety Requirements for each type of insulation and insulation adhesive. Indicate VOC content.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 07 21 13 Facades and Roofs Restoration BOARD INSULATION National Capital Commission Page 2
.2 Manufacturer's Instructions: .1 Submit manufacturer's installation instructions.
1.5 Quality Assurance
.1 Test Reports: certified test reports showing compliance with specified performance characteristics and physical properties. .2 Certificates: product certificates signed by manufacturer certifying materials comply with specified performance characteristics and criteria and physical requirements.
.3 Convene pre-installation meeting one week prior to beginning work of this Section and on-site installations. .1 Verify project requirements. .2 Review installation and substrate conditions. .3 Co-ordinate with other building subtrades. .4 Review manufacturer's installation instructions and warranty requirements.
1.6 Environmental Requirements
.1 Health and Safety Requirements: do construction occupational health and safety in accordance with Section 01 35 29 - Health and Safety Requirements.
.2 Comply with the requirements of Workplace Hazardous Materials Information System (WHMIS) regarding use, handling, storage and disposal of hazardous material; and regarding labelling and the provision of Material Safety Data Sheets.
1.7 Waste Management and Disposal
.1 Separate waste materials for reuse and recycling in accordance with Section 01 74 21 - Construction/Demolition Waste Management And Disposal.
.2 Remove from site and dispose of packaging materials at appropriate recycling facilities.
.3 Collect and separate for disposal paper, plastic, polystyrene, and corrugated cardboard packaging material in appropriate on-site bins for recycling in accordance with Waste Management Plan.
.4 Identify hazardous and related materials which cannot be reused, are regarded as hazardous products and are subject to regulations for disposal. Information on these controls can be obtained from the Provincial Ministries of Environment and Regional Levels of Government.
.5 Safely store materials defined as hazardous or toxic waste, including emptied containers and application apparatus, in containers or areas designated for hazardous waste and dispose of contaminants in an approved legal manner.
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Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 07 21 13 Facades and Roofs Restoration BOARD INSULATION National Capital Commission Page 3
PART 2 PRODUCTS
2.1 Insulation
.1 Foundation wall insulation: Extruded polystyrene (XPS): to CAN/ULC-S701. .1 Type: 4. .2 Compressive strength: .1 Vertical boards: 210 kPa .2 Horizontal and near-horizontal boards: 415 kPa .3 Thickness: as indicated. .4 Size: 609 mm x 2438 mm. .5 Edges: shiplapped.
.2 Roof insulation: Rigid cellular polyisocyanurate, faced: to ASTM C1289, Type 1, Class 1. .1 Compressive strength: 138 kPa. .2 Thickness: as indicated. .3 Size: 914 mm x 2438 mm. .4 Edges: Square.
2.2 Adhesive
.1 Adhesive (for polystyrene): to CGSB 71-GP-24. Type as recommended by the insulation board manufacturer.
PART 3 EXECUTION
3.1 Manufacturer's Instructions
.1 Compliance: comply with manufacturer's written data, including product technical bulletins, product catalogue installation instructions, product carton installation instructions, and data sheets.
3.2 Workmanship
.1 Install insulation after building substrate materials are dry.
.2 Install insulation to maintain continuity of thermal protection to building elements and spaces.
.3 Cut and trim insulation neatly to fit spaces. Butt joints tightly, offset vertical joints. Use only insulation boards free from chipped or broken edges. Use largest possible dimensions to reduce number of joints.
.4 Offset both vertical and horizontal joints in multiple layer applications.
.5 Do not enclose insulation until it has been inspected and approved by the NCC Representative.
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3.3 Examination
.1 Examine substrates and immediately inform the NCC Representative in writing of defects.
.2 Prior to commencement of work ensure: .1 Substrates are firm, straight, smooth, dry, free of snow, ice or frost, and clean of dust and debris.
3.4 Perimeter Foundation Insulation
.1 Install boards on the exterior side of the foundation wall and retain with sufficient adhesive to remain in place until backfilling is complete.
.2 Extend boards out 1 m from the face of the foundation wall as indicated. Lay boards on smooth sloped compacted fill.
.3 Combined overall depth of vertical and sloped insulation: 1200 mm below grade, as indicated on the drawings .
3.5 Cleaning
.1 Upon completion of installation, remove surplus materials, rubbish, tools and equipment barriers.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 07 31 13 Facades and Roofs Restoration ASPHALT SHINGLES National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Requirements
.1 Section 06 03 20 – Wood Repairs.
.1 Section 06 20 00 - Finish Carpentry.
1.2 References
.1 American Society for Testing and Materials (ASTM): .1 ASTM D3161-09, Standard Test Method for Wind Resistance of Asphalt Shingles (Fan-Induced Method).
.2 Canadian General Standards Board (CGSB). .1 CGSB-37-GP-56M-80 (+Amdt.1985), Membrane, Modified, Bituminous, Prefabricated, and Reinforced for Roofing.
.3 Canadian Standards Association (CSA International). .1 CAN/CSA-A123.1/A123.5-05(R2010), Asphalt Shingles Made From Organic Felt and Surfaced With Mineral Granules/Asphalt Shingles Made From Glass Felt and Surfaced With Mineral Granules. .2 CAN3-A123.51-M85 (R2006), Asphalt Shingle Application on Roof Slopes 1:3 and Steeper. .3 CSA-B111-1974 (R2003), Wire Nails, Spikes and Staples.
.4 Health Canada/Workplace Hazardous Materials Information System (WHMIS). .1 Material Safety Data Sheets (MSDS).
.5 National Research Council Canada (NRC)/Institute for Research in Construction (IRC) - Canadian Construction Materials Centre (CCMC). .1 CCMC-2011, Registry of Product Evaluations.
1.3 Action and Informational Submittals
.1 Provide submittals in accordance with Section 01 33 00 - Submittal Procedures.
.2 Product Data: .1 Submit product data sheets for asphalt shingles. Include: .1 Product characteristics. .2 Performance criteria. .3 Installation instructions. .4 Limitations. .5 Colour and finish. .2 Submit manufacturer's Instructions: Provide to indicate special handling criteria, installation sequence, and cleaning procedures. .3 Submit proof of shingle manufacturer's CCMC Listing and listing number. .4 Submit product data sheets for underlayment. .5 Submit WHMIS MSDS - Material Safety Data Sheets in accordance with Section 01 35 29 - Health and Safety Requirements. WHMIS acceptable to Health Canada for asphalt shingles and underlayment.
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.3 Samples: .1 Submit duplicate samples of full size specified shingles.
1.4 Delivery, Storage and Handling
.1 Deliver, handle, store and protect materials in accordance with Section 01 61 00 - Common Product Requirements.
.2 Provide and maintain dry, off-ground weatherproof storage.
.3 Remove only in quantities required for same day use.
1.5 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction / Demolition Waste Management and Disposal.
.2 Remove from site and dispose of all packaging materials at appropriate recycling facilities.
.3 Collect and separate for disposal paper, plastic, polystyrene, and corrugated cardboard packaging material in appropriate on-site bins for recycling in accordance with Waste Management Plan.
.4 Place materials defined as hazardous or toxic in designated containers.
.5 Dispose of unused asphaltic cement type materials at official hazardous material collections site approved by NCC Representative.
.6 Fold up metal banding, flatten and place in designated area for recycling.
PART 2 PRODUCTS
2.1 Materials
.1 Asphalt shingles: Mineral-surfaced, self-sealing, 3-tab fibreglass-based strip asphalt shingles to CSA-A123.5. Provide shingles with Class A fire-test-response classification that pass the wind-resistance- test requirements of ASTM D3161. .1 Pattern: standard pattern, rectangular. .2 Colour: as selected by the NCC Representative .3 Texture: as selected by the NCC Representative.
.2 Underlayment: Self-adhesive, SBS modified bitumen reinforced with a polyester and glass composite reinforcement, top surface sanded, underside self-adhesive protected by silicone release film, to CGSB- 37-GP-56M, as follows: .1 Thickness: 3 mm .2 Strain energy: MD: 7.8 kN/m XD: 7.2 kN/m
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.3 Breaking strength: MD: 15 kN/m XD: 13.5 kN/m .4 Ultimate elongation: MD: 60% XD: 65% .5 Cold bending: Initial: -30 oC 90 days at 70 oC: -30 oC .6 Static puncture: 560 N .7 Tear Resistance: 125 N
.3 Sheet metal flashing: Aluminum sheet to ASTM B209, 3003 H14 alloy and temper, 0.6 mm thick, prefinished , colour as selected by the NCC Representative.
.4 PVC drip edge: extruded profile of unplasticized polyvinyl chloride of minimum thickness of 0.8 mm.
.5 Nails: to CSA B111, of galvanized steel, sufficient length to penetrate 19 mm into deck.
.6 Staples: chisel point galvanized steel 25 mm crown 1.5 mm thick, sufficient length to penetrate 20 mm into deck.
PART 3 EXECUTION
3.1 Application
.1 Do asphalt shingle work in accordance with CAN3-A123.51 except where specified otherwise.
.2 Install drip edge along eaves, overhanging 12 mm, with minimum 50 mm flange extending onto roof decking. Nail to deck at 400 mm on centre.
.3 Install bottom step flashing (soaker base flashing) interleafed between shingles at vertical junctions.
.4 Install valley flashings.
.5 Install asphalt shingles in accordance with CAN3-A123.51.
3.2 Cleaning
.1 Upon completion of the installation, remove from the premises all surplus material, dirt and debris caused by the work of this Section and leave the installation clean.
.2 Make good any damage caused by the work of this Section.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 07 61 00 Facades and Roofs Restoration SHEET METAL ROOFING National Capital Commission Page 1
PART 1 - GENERAL
1.1 Related Sections
.1 Section 02 41 21 - Demolition of Structures.
.2 Section 06 20 00 - Finish Carpentry.
.3 Section 07 62 00 – Sheet Metal Flashing and Trim.
.4 Section 07 92 10 - Joint Sealing.
1.2 References
.1 American Association of Textile Chemists and Colorists (AATCC): .1 AATCC 127-2008, Test Method - Water Resistance: Hydrostatic Pressure Test.
.2 American Society for Testing and Materials (ASTM) .1 ASTM B32-08, Standard Specification for Solder Metal. .2 ASTM B370-09, Standard Specification for Copper Sheet and Strip for Building Construction. .3 ASTM E84-10, Standard Test Method for Surface Burning Characteristics of Building Materials. .4 ASTM E96/E96M-05, Standard Test Methods for Water Vapor Transmission of Materials. .5 ASTM E907-96(2004), Standard Test Method for Field Testing Uplift Resistance of Adhered Membrane Roofing Systems.
.3 Copper Development Association (CDA): .1 Copper in Architecture Handbook, latest edition.
.4 Canadian Standards Association (CSA): .1 CSA-B111-1974(R2003), Wire Nails, Spikes and Staples.
.5 Health Canada / Workplace Hazardous Materials Information System (WHMIS): .1 Material Safety Data Sheets (MSDS).
.6 Society for Protective Coatings (SSPC): .1 SSPC-Paint 12 1982, Paint Specification No. 12: Cold Applied Asphalt Mastic (Extra Thick Film).
1.3 Single Source Responsibility
.1 Engage a single Subcontractor to assume undivided responsibility for the following work: .1 Sheet tinned copper roofing specified herein. .2 Sheet metal flashings and trim specified in Section 07 62 00.
1.4 Submittals
.1 General: Submit each item in this Article according to Section 01 30 00 - Submittal Procedures.
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.2 Shop drawings showing manner of forming, joining, and securing tinned copper roofing, and pattern of seams. Show expansion joint details and waterproof connections to adjoining work and at obstructions and penetrations.
.3 Samples: Submit duplicate 100 mm x 100 mm samples of sheet tinned copper material.
.4 Product Data: .1 Submit tinned copper manufacturer's and fabricator's specifications, installation instructions, and general recommendations for roofing applications. .2 Submit product data sheets for underlayment material. Include: .1 Product characteristics. .2 Performance criteria. .3 Limitations. .3 Include certification or other data substantiating that materials comply with requirements. .4 Submit two copies of WHMIS MSDS Material Safety Data Sheets in accordance with Section 01 35 29 - Health and Safety Requirements for the underlayment material and for sealant material. Indicate VOC content.
1.5 Environmental Requirements
.1 Comply with the requirements of Workplace Hazardous Materials Information System (WHMIS) regarding use, handling, storage and disposal of hazardous material; and regarding labelling and the provision of Material Safety Data Sheets.
1.6 Quality Assurance
.1 Industry Standard: Except as otherwise shown or specified, comply with the applicable recommendations and details of CDA "Copper in Architecture Handbook". Conform to dimensions and profiles shown.
.2 Wind Uplift: Provide roof assemblies meeting requirements of ASTM E907 for Class I-90 wind uplift resistance.
1.7 Field Samples and Mock-Ups
.1 In accordance with Section 01 45 00 - Quality Control, construct a portion of tinned copper roofing including materials and methods of fabrication and installation identical with project requirements. Provide a mock-up of sufficient size and scope to show the typical pattern of seams, fastening details, edge construction, and finish texture and colour.
.2 Locate where directed by the NCC Representative.
.3 The accepted mock-up may be incorporated into the finished work.
.4 The accepted mock-up shall be the standard of acceptance for the work of this Section.
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1.8 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with section 01 74 21 Construction/Demolition Waste Management and Disposal.
.2 Place materials defined as hazardous or toxic waste in designated containers.
.3 Ensure emptied containers are sealed and stored safely for disposal away from children.
.4 Collect and separate plastic, paper packaging and corrugated cardboard in accordance with Waste Management Plan.
.5 Fold up metal banding, flatten and place in designated area for recycling.
.6 Use the least toxic sealants, and adhesives necessary to comply with requirements of this section.
.7 Identify hazardous and related materials which cannot be reused, are regarded as hazardous products and are subject to regulations for disposal. Information on these controls can be obtained from the Provincial Ministries of Environment and Regional Levels of Government.
.8 Close and seal, tightly, all partly used sealant and adhesive containers and store protected in well ventilated, fire-safe area at moderate temperature.
.9 Place used hazardous sealant tubes and adhesive containers in areas designated for hazardous materials.
.10 Collect, package and store sheet metal cut-offs and waste for recycling and return to recycler in accordance with Waste Management Plan.
.11 Safely store materials defined as hazardous or toxic waste, including emptied containers and application apparatus, in containers or areas designated for hazardous waste and dispose of contaminants in an approved legal manner.
PART 2 - PRODUCTS
2.1 Materials
.1 General: Except as specifically indicated as the work of another trade, provide components required for a complete roof system, including trim, copings, fascias, ridge closures, clips, seam covers, flashings, gutters, sealants, gaskets, and closure strips. Match materials and finishes of roof.
.2 Tinned copper roofing sheets: Tinned copper sheet: to ASTM B370, H00 temper designation, 2% yield strength for roofing, 060 temper designation for flashing 6.10 kg/m 2 minimum weight, 0.68 mm thick.
.3 Cleats: of same material, and temper as sheet metal, minimum 50 mm wide. Thickness same as sheet metal being secured.
.4 Underlayment: Air barrier membrane as follows:
DFS Inc. Architecture & Design File No. 4713-510
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.1 Spunbonded polypropylene breather membrane .2 Nonswelling, rot and mildew resistant. .3 Nominal weight 175 g/m 2. .4 Nominal thickness 0.6 mm. .5 Water vapour transmission (ASTM E96 Method B): 212 perms. .6 Water penetration resistance ATTCC-127: 68 cm. .7 Surface burning characteristics (ASTM E84): .1 Flame spread: Class A. .2 Smoke Developed: Class A.
.5 Support panel for air barrier membrane: Semi-rigid board composed of a mineral fortified asphaltic core.
.6 Fasteners: .1 Nails for metal flashing to CSA B111 flat head, wire, barbed, roofing nail type; solid tinned copper or hardware bronze, length and diameter to suit application, not less than 22 mm long x 2.76 mm dia. .2 Rivets: 3.2 mm to 4.8 mm diameter, with solid tinned copper mandrels and washers. .3 Other fasteners to suit site conditions as recommended by installer to the approval of the NCC Representative.
.7 Washers: of same material as sheet metal, 1 mm thick with rubber packings.
.8 Accessories for flashing include cleats, wedges, washers and other accessories required to perform work. Insure all such accessories are compatible with adjacent materials.
.9 Solder: to ASTM B32, Grade Sn50, 50/50 tin/lead.
.10 Flux: rosin, cut hydrochloric acid, or commercial preparation suitable for materials to be soldered.
.11 Sealants: .1 Sealing Tape: Pressure-sensitive 100 percent solids polyisobutylene compound sealing tape with release paper backing. Provide permanently elastic, nonsag, nontoxic, nonstaining tape. .2 Joint Sealant: One-part silicone rubber sealant as recommended by the tinned copper sheet manufacturer. Refer to Section 07 92 00 - Joint Sealants.
2.2 Fabrication
.1 Shop-fabricate work to the maximum extent possible, to configurations indicated on the reviewed and accepted shop drawings, as required by site conditions, and in accordance with the applicable requirements of CDA "Tinned copper in Architecture Handbook" and other recognized industry practices.
.2 Fabricate for waterproof and weather-resistant performance with expansion provisions for running work, sufficient to permanently prevent leakage, damage, or deterioration of the work. Form work to fit substrate.
.3 Comply with material manufacturer's instructions and recommendations for forming material.
.4 Form exposed tinned copper work without excessive oil-canning, buckling, and tool marks, true to line and levels indicated, with exposed edges folded back to form hems.
.5 Form individual pieces in 2400 mm maximum lengths. Make allowances for expansion at joints.
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.6 Hem exposed edges on underside 12 mm, mitre and seal.
.7 Form sections square, true and accurate to size, free from distortion and other defects detrimental to appearance or performance.
.8 Fabricate nonmoving seams in tinned copper sheet with flat-lock seams. Form seams, and solder. Rivet joints for additional strength where necessary.
.9 Where lapped or bayonet-type expansion provisions in work cannot be used, or would not be sufficiently water/weatherproof, form expansion joints of intermeshing hooked flanges, not less than 1" deep, filled with mastic sealant (concealed within joints).
.10 Where movable, non-expansion-type joints are indicated or required for proper performance of work, form tinned copper to provide for proper installation of elastomeric sealant, in compliance with CDA standards.
.11 Provide for separation of tinned copper from noncompatible metal or corrosive substrate by coating concealed surfaces at locations of contact, with bituminous coating or other permanent separation as recommended by the manufacturer/fabricator. Apply coating to both faces of dissimilar metals in contact.
PART 3 - EXECUTION
3.1 Preparation
.1 Clean surfaces to receive tinned copper roofing. Substrate to be smooth and free of defects. Drive all projecting nails or other fasteners flush with substrate.
3.2 Workmanship
.1 Except as otherwise shown or specified, comply with recommendations and instructions of the tinned copper sheet manufacturer and conform to the reviewed and accepted shop drawings.
.2 Fabricate and install work with lines and corners of exposed units true and accurate. Form exposed faces flat and free of buckles, excessive waves, and avoidable tool marks considering temper and reflectivity of metal.
.3 Provide uniform, neat seams with minimum exposure of solder, welds, and sealant.
.4 Except as otherwise shown, fold back sheet metal to form a hem on concealed side of exposed edges.
.5 Conceal fasteners and expansion provisions where possible in exposed work, and locate so as to minimize possibility of leakage. Cover and seal fasteners and anchors as required for a tight installation.
.6 Separate dissimilar metals by painting each metal surface in area of contact with a heavy coat of bituminous coating.
.7 Use concealed fastenings except where approved by the NCC Representative before installation.
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3.3 Underlayment
.1 Install underlayment the semi-rigid support panel and the air barrier membrane over the entire area of the plywood sheathing to receive the tinned copper roofing and flashing. .1 Handle underlayment carefully to prevent tears and punctures and repair with adhesive tape any which does occur. .2 Install underlayment parallel to eaves with the green side up, maintaining consistent taughtness. .3 Head (horizontal) laps to be not less than 100 mm and end laps of not less than 150 mm. Laps shall run with the flow of the water in a shingling manner. .4 Fasten top edge of each strip with 2.77 mm shank diameter, corrosion-resistant stainless steel nails with a minimum 9.5 mm diameter head. Use sufficient nails to hold underlayment in place until tinned copper roofing is applied. .5 Lap underlayment over hips and ridges. .6 Lap underlayment 100 mm over metal valleys or built-in gutters.
3.4 Tinned copper Roofing Installation
.1 Form and fabricate sheets, seams, strips, cleats, valleys, ridges, edge treatments, integral flashings and other components of tinned copper roofing to profiles, patterns and drainage arrangements shown and as required for permanently leakproof construction.
.2 Provide for thermal expansion and contraction of the work, as indicated. Seal joints as shown and as required for leakproof construction. Shop-fabricate materials to greatest extent possible.
.3 Secure cleats with two fasteners each and cover with cleat tabs.
.4 Stagger transverse seams in adjacent panels.
.5 Flash roof penetrations with material matching roof panels, and make watertight.
.6 Form seams in direction of water-flow and make watertight.
.7 Perform soldering with well heated tinned coppers, heat seam thoroughly and sweat solder through its full width.
.8 Clean and flux metals before soldering.
.9 Follow sheet metal manufacturer's recommendations for soldering procedures.
.10 As work progresses, neutralize excess flux with 5% to 10% washing soda solution, and thoroughly rinse. Leave work clean and free of stains.
.11 Separate sheet metal cut-offs and damaged material from non-recyclable waste and dispose of at proper recycling facility.
3.5 Sealant-Type Joints
.1 Where sealant-filled joints are used, embed hooked flanges of joint members not less than 25 mm into sealant. Form joints to conceal sealant completely.
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.2 When ambient temperature is moderate at time of installation, 4 oC to 21 oC, set joint members for 50% movement either way. Adjust setting proportionately for installation at higher ambient temperatures.
.3 Do not install sealant-type joints at temperatures below 4 oC.
.4 Comply with the requirements of Section 07 92 00 - Joint Sealants for handling and installing sealants.
3.6 Flat Seam Roofing
.1 Use 6.10 kg/m 2 tinned copper, 0.68 mm thick rectangular sheets, to make flat seam roofing. Notch corners and turn up pretinned edges 20 mm.
.2 Lay sheets with long dimension parallel to eaves.
.3 Lock cleats into seams and flatten smooth in direction of flow.
.4 At eaves and gable ends, terminate roofing by hooking over previously installed edge strip.
END OF SECTION
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PART 1 GENERAL
1.1 Related Sections
.1 Section 06 10 10 - Rough Carpentry.
.2 Section 07 61 00 - Sheet Metal Roofing.
1.2 References
.1 American Association of Textile Chemists and Colourists (AATCC): .1 AATCC 127-2008, Test Method - Water Resistance: Hydrostatic Pressure Test.
.2 American Society for Testing and Materials (ASTM International) .1 ASTM B32-08, Standard Specification for Solder Metal. .2 ASTM E84-10, Standard Test Method for Surface Burning Characteristics of Building Materials. .3 ASTM E96/E96M-05, Standard Test Methods for Water Vapor Transmission of Materials.
.3 Canadian Standards Association (CSA): .1 CSA-B111-1974(R2003), Wire Nails, Spikes and Staples.
.4 Health Canada / Workplace Hazardous Materials Information System (WHMIS): .1 Material Safety Data Sheets (MSDS).
.5 Society for Protective Coatings (SSPC): .1 SSPC-Paint 12 1982, Paint Specification No. 12: Cold Applied Asphalt Mastic (Extra Thick Film).
1.3 Single Source Responsibility
.1 Engage a single Subcontractor to assume undivided responsibility for the following work: .1 Finish carpentry work associated with the roofing work, including installation of board insulation, specified in Section 06 20 00. .2 Sheet metal flashing and trim specified herein.
1.4 Submittals
.1 General: Submit each item in this Article according to Section 01 30 00 - Submittal Procedures.
.2 Shop drawings showing manner of forming, joining, and securing metal flashing and trim. Show joint details and waterproof connections to adjoining work.
.3 Samples: Submit duplicate 100 mm x 100 mm samples of sheet metal material.
.4 Product Data: .1 Submit metal manufacturer's and fabricator's specifications, installation instructions, and general recommendations for flashing and trim applications. .2 Submit product data sheets for underlayment material. Include: .1 Product characteristics.
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.2 Performance criteria. .3 Limitations. .3 Include certification or other data substantiating that materials comply with requirements. .4 Submit two copies of WHMIS MSDS Material Safety Data Sheets in accordance with Section 01 35 29 - Health and Safety Requirements for the underlayment material and for sealant material. Indicate VOC content.
1.5 Environmental Requirements
.1 Comply with the requirements of Workplace Hazardous Materials Information System (WHMIS) regarding use, handling, storage and disposal of hazardous material; and regarding labelling and the provision of Material Safety Data Sheets.
1.6 Quality Assurance
.1 Industry Standard: Except as otherwise shown or specified, comply with the applicable recommendations and details of CDA "Metal in Architecture Handbook". Conform to dimensions and profiles shown.
1.7 Waste Management and Disposal
.1 Separate and recycle waste materials in accordance with Section 01 74 21 - Construction/Demolition Waste Management and Disposal, and with Waste Reduction Workplan.
.2 Place materials defined as hazardous or toxic waste in designated containers.
.3 Ensure emptied containers are sealed and stored safely for disposal away from children.
.4 Collect and separate plastic, paper packaging and corrugated cardboard in accordance with Waste Management Plan.
.5 Fold up metal banding, flatten and place in designated area for recycling.
.6 Use the least toxic sealants, and adhesives necessary to comply with requirements of this section.
.7 Identify hazardous and related materials which cannot be reused, are regarded as hazardous products and are subject to regulations for disposal. Information on these controls can be obtained from the Provincial Ministries of Environment and Regional Levels of Government.
.8 Close and seal, tightly, all partly used sealant and adhesive containers and store protected in well ventilated, fire-safe area at moderate temperature.
.9 Place used hazardous sealant tubes and adhesive containers in areas designated for hazardous materials.
.10 Collect, package and store sheet metal cut-offs and waste for recycling and return to recycler in accordance with Waste Management Plan.
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PART 2 PRODUCTS
2.1 Materials
.1 Galvanized Metal sheet: 060 temper designation, 6.10 kg/m 2 minimum weight, 0.68 mm thick.
.2 Copper sheet: to ASTM B370, 060 temper designation, 6.10 kg/m 2 minimum weight, 0.68 mm thick.
.3 Cleats: of same material, and temper as sheet metal, minimum 50 mm wide. Thickness same as sheet metal being secured.
.4 Underlay for metal flashing: Spunbonded polypropylene breather membrane, as follows: .1 Nonswelling, rot and mildew resistant. .2 Nominal weight 175 g/m 2. .3 Nominal thickness 0.6 mm. .4 Water vapour transmission (ASTM E96 Method B): 212 perms. .5 Water penetration resistance AATCC 127: 68 cm. .6 Surface burning characteristics (ASTM E84): .1 Flame spread: Class A. .2 Smoke Developed: Class A.
.5 Fasteners: .1 Nails for metal sheet to CSA B111 flat head, wire, barbed, roofing nail type; solid metal, length and diameter to suit application, not less than 22 mm long x 2.76 mm dia. .2 Rivets for metal sheet: 3.2 mm to 4.8 mm diameter, with solid metal mandrels and washers. .3 Nails for lead sheet: Non-corrosive fasteners, as recommended by the manufacturer. .4 Other fasteners to suit site conditions as recommended by installer to the approval of the Consultant.
.6 Washers: of same material as sheet metal, 1 mm thick with rubber packings.
.7 Accessories for flashing include cleats, wedges, washers and other accessories required to perform work. Insure all such accessories are compatible with adjacent materials
.8 Solder: to ASTM B32, Grade Sn50, 50/50 tin/lead.
.9 Flux: rosin, cut hydrochloric acid, or commercial preparation suitable for materials to be soldered.
.10 Sealants: .1 Sealing Tape: Pressure-sensitive 100 percent solids polyisobutylene compound sealing tape with release paper backing. Provide permanently elastic, nonsag, nontoxic, nonstaining tape. .2 Joint Sealant: One-part silicone rubber sealant as recommended by the metal sheet manufacturer. Refer to Section 07 92 00 - Joint Sealants.
.11 Bituminous Coating: Cold-applied asphalt mastic, SSPC paint 12, compounded for 0.38 mm dry film thickness per coat, except as otherwise indicated. Provide inert-type noncorrosive compound, nominally free of sulphur components and other deleterious impurities.
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2.2 Fabrication
.1 Shop-fabricate metal flashings and other sheet metal work to the maximum extent possible, to configurations indicated on the reviewed and accepted shop drawings, as required by site conditions, and in accordance with the applicable requirements of CDA "Metal in Architecture Handbook" and other recognized industry practices.
.2 Form pieces in 2400 mm maximum lengths. Make allowance for expansion at joints.
.3 Hem exposed edges on underside 12 mm. Mitre and seal corners with sealant.
.4 Form sections square, true and accurate to size, free from distortion and other defects detrimental to appearance or performance.
.5 Apply isolation coating to metal surfaces to be embedded in concrete or mortar or in contact with dissimilar metals.
2.3 Metal Flashings
.1 Form flashings, copings and fascias to profiles indicated, generally of metal sheet. Form flashings of galvanized metal sheet where indicated.
PART 3 EXECUTION
3.1 Installation
.1 Install sheet metal work as detailed.
.2 Use concealed fastenings except where approved before installation.
.3 Provide underlay under sheet metal. Secure in place and lap joints 100 mm.
.4 Lock end joints and caulk with sealant.
.5 Insert metal flashing into reglets and under cap flashings to form weathertight junctions.
.6 Turn top edge of flashing into recessed reglet or mortar joint minimum of 25 mm. Lead wedge flashing securely into joint.
.7 Caulk flashing at reglets and cap flashings with sealant.
END OF SECTION
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PART 1 GENERAL
1.1 Related Sections
.1 Section 04 03 07 - Heritage - Masonry Repointing and Repair
.2 Section 07 62 00 - Sheet Metal Flashing and Trim.
.3 Section 08 11 00 - Metal Doors and Frames.
1.2 References
.1 American Society for Testing and Materials International, (ASTM): .1 ASTM C834-10, Standard Specification for Latex Sealants. .2 ASTM C920-10, Standard Specification for Elastomeric Joint Sealants.
.2 Department of Justice Canada (Jus) .1 Canadian Environmental Protection Act, 1999 (CEPA).
.3 Health Canada/Workplace Hazardous Materials Information System (WHMIS) .1 Material Safety Data Sheets (MSDS).
.4 Transport Canada (TC) .1 Transportation of Dangerous Goods Act, 1992 (TDGA).
1.3 Submittals
.1 Submit product data in accordance with Section 01 33 00 - Submittal Procedures. .1 Manufacturer's product to describe. .1 Caulking compound. .2 Primers. .3 Sealing compound, each type, including compatibility when different sealants are in contact with each other. .2 Submit two copies of WHMIS MSDS Material Safety Data Sheets in accordance with Section 01 35 29 - Health and Safety Requirements for each type of sealant and primer. Indicate VOC content.
.2 Submit samples in accordance with Section 01 33 00 - Submittal Procedures. .1 Submit duplicate samples of each type of material and colour. .2 Cured samples of exposed sealants for each colour where required to match adjacent material.
.3 Submit manufacturer's instructions in accordance with Section 01 33 00 - Submittal Procedures. Instructions to include installation instructions for each product used.
1.4 Mock-Ups
.1 In accordance with Section 01 45 00 - Quality Control, construct a mock-up of each of the following sealant applications: .1 Wood door or window frame perimeter at interface with masonry.
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.2 Caulked masonry joints .3 Two other sealant applications to be selected by the NCC Representative.
.2 Each mock-up shall consist of minimum 1.5 linear metres of sealant joint, located where directed by the NCC Representative.
.3 The approved mock-ups may be incorporated into the finished work.
.4 The approved mock-ups shall be the standard of acceptance for the work of this Section.
1.5 Delivery, Storage, and Handling
.1 Deliver, handle, store and protect materials in accordance with Section 01 61 00 - Common Product Requirements.
.2 Deliver and store materials in original wrappings and containers with manufacturer's seals and labels, intact. Protect from freezing, moisture, water and contact with ground or floor.
1.6 Waste Management and Disposal
.1 Separate waste materials for reuse and recycling in accordance with Section 01 74 19 - Construction/Demolition Waste Management And Disposal.
.2 Remove from site and dispose of packaging materials at appropriate recycling facilities.
.3 Collect and separate for disposal paper, plastic, polystyrene and corrugated cardboard packaging material in appropriate on-site bins for recycling in accordance with Waste Management Plan.
.4 Identify hazardous and related materials which cannot be reused, are regarded as hazardous products and are subject to regulations for disposal. Information on these controls can be obtained from the Provincial Ministries of Environment and Regional Levels of Government.
.5 Safely store materials defined as hazardous or toxic waste, including emptied containers and application apparatus, in containers or areas designated for hazardous waste and dispose of contaminants in an approved legal manner.
.6 Place materials defined as hazardous or toxic in designated containers.
.7 Handle and dispose of hazardous materials in accordance with the CEPA, TDGA, Regional and Municipal regulations.
.8 Unused sealant material must not be disposed of into sewer system, into streams, lakes, onto ground or in other location where it will pose health or environmental hazard.
.9 Divert unused joint sealing material from landfill to official hazardous material collections site approved by the NCC Representative.
.10 Empty plastic joint sealer containers are not recyclable. Do not dispose of empty containers with plastic materials destined for recycling.
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.11 Fold up metal banding, flatten, and place in designated area for recycling.
1.7 Project Conditions .1 Environmental Limitations: .1 Do not proceed with installation of joint sealants under following conditions: .1 When ambient and substrate temperature conditions are outside limits permitted by joint sealant manufacturer or are below 4.4 oC. .2 When joint substrates are wet.
.2 Joint-Width Conditions: .1 Do not proceed with installation of joint sealants where joint widths are less than those allowed by joint sealant manufacturer for applications indicated.
.3 Joint-Substrate Conditions: .1 Do not proceed with installation of joint sealants until contaminants capable of interfering with adhesion are removed from joint substrates.
1.8 Environmental Requirements
.1 Comply with requirements of Workplace Hazardous Materials Information System (WHMIS) regarding use, handling, storage, and disposal of hazardous materials; and regarding labelling and provision of Material Safety Data Sheets (MSDS) acceptable to Labour Canada.
.2 Conform to manufacturer's recommended temperatures, relative humidity, and substrate moisture content for application and curing of sealants including special conditions governing use.
.3 Ventilate area of work as directed by the NCC Representative by use of approved portable supply and exhaust fans.
PART 2 PRODUCTS
2.1 Sealant Materials
.1 Do not use caulking that emits strong odours, contains toxic chemicals or is not certified as mould resistant in air handling units.
.2 When low toxicity caulks are not possible, confine usage to areas which offgas to exterior, are contained behind air barriers, or are applied several months before occupancy to maximize offgas time.
.3 Where sealants are qualified with primers use only these primers.
2.2 Sealant Material Designations
.1 Type A: Silicone, one-component to ASTM C920, Type S, Grade NS, Class 100/50, Use T, NT, M, G, A, O. Use: for dynamic and control joints (see also 2.4)
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.2 Type B: Silicone, one-component to ASTM C920, Type S, Grade NS, Class 50, Use NT, M, G, A. Use: for waterproofing joints (masonry, around windows and doors, etc..) see also 2.4
.3 Type C: Siliconized acrylic latex, one-part, paintable, to ASTM C834. Use: for interior use only (see also 2.4)
2.3 Accessories
.1 Preformed Compressible and Non-Compressible back-up materials, compatible with sealant: .1 Polyethylene, Urethane, Neoprene or Vinyl Foam. .1 Extruded closed cell foam backer rod. .2 Size: oversize 30 to 50 %.
.2 Neoprene or Butyl Rubber. .1 Round solid rod, Shore A hardness 70.
.3 Bond Breaker Tape. .1 Polyethylene bond breaker tape which will not bond to sealant.
2.4 Sealant Selection
.1 Perimeters of exterior openings where frames meet stone exterior facade of building: Sealant Type A with primer where recommended by manufacturer.
.2 Control and expansion joints in exterior surfaces of stone masonry walls: Sealant Type A.
.3 Coping joints and coping-to facade joints: Sealant Type A.
.4 Cornice and wash (or horizontal surface joints): Sealant Type A.
.5 Seal interior perimeters of exterior openings as detailed on drawings: Sealant Type C.
.6 Control and expansion joints on the interior of exterior surfaces of unit masonry walls: Sealant Type A.
.7 Perimeters of interior frames, as detailed and itemized: Sealant Type C.
.8 Interior masonry vertical control joints: Sealant Type A.
.9 Exposed interior control joints in drywall: Sealant type: C.
.10 Sealant joints in metal roofing, flashing and trim: Sealant Type B.
.11 Waterproofing joints for masonry, around doors and windows, equipment: Sealant Type B.
2.5 Joint Cleaner
.1 Non-corrosive and non-staining type, compatible with joint forming materials and sealant recommended by sealant manufacturer.
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.2 Primer: as recommended by manufacturer.
PART 3 EXECUTION
3.1 Protection
.1 Protect installed Work of other trades from staining or contamination.
3.2 Surface Preparation
.1 Examine joint sizes and conditions to establish correct depth to width relationship for installation of backup materials and sealants.
.2 Clean bonding joint surfaces of harmful matter substances including dust, rust, oil grease, and other matter which may impair Work.
.3 Do not apply sealants to joint surfaces treated with sealer, curing compound, water repellent, or other coatings unless tests have been performed to ensure compatibility of materials. Remove coatings as required.
.4 Ensure joint surfaces are dry and frost free.
.5 Prepare surfaces in accordance with manufacturer's directions.
3.3 Priming
.1 Where necessary to prevent staining, mask adjacent surfaces prior to priming and caulking.
.2 Prime sides of joints in accordance with sealant manufacturer's instructions immediately prior to caulking.
3.4 Backup Material
.1 Apply bond breaker tape where required to manufacturer's instructions.
.2 Install joint filler to achieve correct joint depth and shape, with approximately 30% compression.
3.5 Mixing
.1 Mix materials in strict accordance with sealant manufacturer's instructions.
3.6 Application
.1 Sealant. .1 Apply sealant in accordance with manufacturer's written instructions. .2 Mask edges of joint where irregular surface or sensitive joint border exists to provide neat joint.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 07 92 00 Facades and Roofs Restoration JOINT SEALANTS National Capital Commission Page 6
.3 Apply sealant in continuous beads. .4 Apply sealant using gun with proper size nozzle. .5 Use sufficient pressure to fill voids and joints solid. .6 Form surface of sealant with full bead, smooth, free from ridges, wrinkles, sags, air pockets, embedded impurities. .7 Tool exposed surfaces before skinning begins to give slightly concave shape. .8 Remove excess compound promptly as work progresses and upon completion.
.2 Curing. .1 Cure sealants in accordance with sealant manufacturer's instructions. .2 Do not cover up sealants until proper curing has taken place.
.3 Cleanup. .1 Clean adjacent surfaces immediately and leave Work neat and clean. .2 Remove excess and droppings, using recommended cleaners as work progresses. .3 Remove masking tape after initial set of sealant.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 24 33 Facades and Roofs Restoration PORTLAND CEMENT PARGING National Capital Commission Page 1
PART 1 GENERAL
1.1 Related Documents
.1 Drawings and general provisions of the Contract and Division 1 Specification Sections, apply to this Section.
1.2 Summary of Work
.1 Work Included: The work of this Section includes the provision of all labour, materials, equipment and services required to apply Portland cement parging to the surfaces of the foundation walls, as indicated on the drawings, as specified herein and as required for a complete project.
.2 Related Sections: .1 Section 07 14 13 - Hot-Applied Rubberized Asphalt Waterproofing. .2 Section 31 23 10 - Excavating and Backfilling. .3 Section 33 46 20 - Foundation Drainage.
1.3 References
.1 Canadian Standards Association (CSA): .1 CSA-A179-04, Mortar and Grout for Unit Masonry.
1.4 Submittals
.1 General: Submit each item in this Article according to the Conditions of the Contract and the applicable Division 01 Specification Sections.
.2 Product Data: .1 Provide manufacturer's complete technical product data for each specified product. .2 Include application instructions for parging. .3 Include manufacturer's material safety data sheets for the safe handling of the specified materials and products, in accordance with Workplace Hazardous Materials Information Service (WHMIS) requirements.
1.5 Delivery, Storage and Handling
.1 Deliver materials to job site in dry condition.
.2 Deliver packaged products in original unopened packaging with legible manufacturer's identification.
.3 Storage and Protection: .1 Keep materials dry until use. .2 Store cementitious materials on elevated platforms, under cover, and in a dry location.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 24 33 Facades and Roofs Restoration PORTLAND CEMENT PARGING National Capital Commission Page 2
1.6 Environmental Conditions
.1 Do not apply parging in wet weather.
.2 Maintain ambient and surface temperatures of minimum 5 oC in the area of the work before, during and for at least 72 hours after parging application.
1.7 Qualifications
.1 The work of this Section shall be executed by a company licensed by the material manufacturer as an approved installer.
.2 Employ only skilled tradesmen with minimum 5 years documented experience in the specialized type of work required.
.3 Provide a competent trade foreman, well-skilled and experienced in the specialized type of work required, for continuous supervision.
1.8 Warranty
.1 For the work of this Section, the 12-months warranty period prescribed in the General Conditions of the Contract is extended to 5 years. Provide a written warranty, co-signed by the manufacturer and the installer.
PART 2 PRODUCTS
2.1 General
.1 This specification is based on Bétomix Plus mortar products by Daubois Inc.
.2 Requests for substitutions will be considered in accordance with provisions of Section 01 00 00 "General Instructions". Acceptance of alternative products is subject to the approval of the NCC Representative.
2.2 Materials
.1 Cement/lime/sand parging mix: To CSA-A179, proprietary, premixed, mixture of Type N sand, hydrated lime, Portland cement and agents designed to enhance bond and workability, formulated specifically for parging masonry walls above and below grade. Standard of acceptance: Bétomix Plus, Type N mortar or approved equivalent.
.2 Water: Potable.
2.3 Mixing
.1 Empty contents of bag into mixing container.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 24 33 Facades and Roofs Restoration PORTLAND CEMENT PARGING National Capital Commission Page 3
.2 Add clean water at the rate of 5 litres per 30 kg bag.
PART 3 EXECUTION
3.1 Examination
.1 Examine areas and conditions under which work is to be performed and notify the NCC Representative in writing of conditions detrimental to the proper and timely completion of the work.
.2 Do not proceed with the work until unsatisfactory conditions have been corrected to the satisfaction of the applicator.
.3 Commencement of the installation will be construed as acceptance of the site conditions and, thereafter, the Contractor shall be fully responsible for satisfactory work as specified herein.
3.2 Surface Preparation
.1 Surfaces must be structurally sound.
.2 Clean surfaces free of dirt, sand, dust, paint and other foreign material, by brushing vigorously with a broom or stiff brush and water.
.3 If small amounts of grease or oil are present, scrub vigorously with a strong detergent solution and flood with large volumes of water.
3.3 Parging Application
.1 Thoroughly saturate the area to be parged with clean water and remove any free standing water. Some very porous materials may require several applications of water to ensure complete saturation.
.2 Apply parging to damp surface, not more than 10 mm in thickness, using a trowel.
.3 If a greater thickness is necessary to produce the required finish, rough up surface with a coarse broom, and allow to harden 24 hours before repeating the process.
.4 Trowel-finish to a smooth flat surface, suitable to receive the dampproofing specified in Section 07 14 13 "Hot-Applied Rubberized Asphalt Waterproofing" and the drainage composite specified in Section 33 46 20 "Foundation Drainage".
3.4 Curing
.1 After setting, keep damp for 72 hours by misting occasionally with water.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 24 33 Facades and Roofs Restoration PORTLAND CEMENT PARGING National Capital Commission Page 4
3.5 Cleaning
.1 Upon completion of the application, remove from the premises all surplus material, dirt and debris caused by the work of this Section and leave the installation clean.
.2 Clean any drippage and spills of surplus parging mortar from adjacent surfaces.
.3 Make good any damage caused by the work of this Section
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 91 10 Facades and Roofs Restoration PAINTING National Capital Commission Page 1
PART 1 GENERAL
1.1 References
.1 Health Canada/Workplace Hazardous Materials Information System (WHMIS) .1 Material Safety Data Sheets (MSDS).
.2 Master Painters Institute (MPI) .1 MPI Architectural Painting Specifications Manual, 2007. .2 MPI - Maintenance Repainting Manual, 2004.
1.2 Submittals
.1 Submittals in accordance with Section 01 33 00 - Submittal Procedures.
.2 Product Data: .1 Submit product data and instructions for each paint and coating product to be used. .2 Submit product data for the use and application of paint thinner. .3 Submit two copies of Workplace Hazardous Materials Information System (WHMIS) Material Safety Data Sheets (MSDS) in accordance with Section 01 33 00 - Submittal Procedures. Indicate VOCs during application and curing. .4 Submit certificates signed by manufacturer certifying that materials comply with specified performance characteristics and physical properties. .5 Submit manufacturer's application instructions.
1.3 Storage and Handling
.1 Storage and Protection: .1 Provide and maintain dry, temperature controlled, secure storage. .2 Store materials and supplies away from heat generating devices. .3 Store materials and equipment in well ventilated area within temperature as recommended by manufacturer.
.2 Fire Safety Requirements: .1 Provide one 9 kg dry chemical fire extinguisher adjacent to storage area. .2 Store oily rags, waste products, empty containers and materials subject to spontaneous combustion in ULC approved, sealed containers and remove from site on a daily basis. .3 Handle, store, use and dispose of flammable and combustible materials in accordance with National Fire Code of Canada requirements.
1.4 Waste Management and Disposal
.1 Separate waste materials for reuse and recycling in accordance with Section 01 74 21 - Construction/Demolition Waste Management And Disposal.
.2 Remove from site and dispose of packaging materials at appropriate recycling facilities.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 91 10 Facades and Roofs Restoration PAINTING National Capital Commission Page 2
.3 Place materials defined as hazardous or toxic waste, including tubes and containers, in containers or areas designated for hazardous waste.
.4 Paint, stain and wood preservative finishes and related materials (thinners, and solvents) are regarded as hazardous products and are subject to regulations for disposal. Information on these controls can be obtained from Provincial Ministries of Environment and Regional levels of Government.
1.5 Site Conditions
.1 Heating, Ventilation and Lighting: .1 Ventilate enclosed spaces in accordance with Section 01 51 00 - Temporary Utilities. .2 Co-ordinate use of existing ventilation system with NCC Representative and ensure its operation during and after application of paint as required. .3 Take all necessary precautions to avoid contaminating the air in the occupied portion of the building. .4 Provide minimum lighting level of 323 Lux on surfaces to be painted.
.2 Temperature, Humidity and Substrate Moisture Content Levels: .1 Apply paint finishes when ambient air and substrate temperatures at location of installation can be satisfactorily maintained during application and drying process, within MPI and paint manufacturer's prescribed limits. .2 Test concrete, masonry and plaster surfaces for alkalinity as required. .3 Apply paint to adequately prepared surfaces, when moisture content is below paint manufacturer's prescribed limits.
.3 Additional application requirements: .1 Apply paint finish in areas where dust is no longer being generated by related construction operations or when wind or ventilation conditions are such that airborne particles will not affect quality of finished surface. .2 Apply paint in occupied facilities during silent hours only. Schedule operations to approval of NCC Representative such that painted surfaces will have dried and cured sufficiently before occupants are affected.
PART 2 PRODUCTS
2.1 Materials
.1 Paint materials listed in the MPI Approved Products List (APL) are acceptable for use on this project.
.2 Provide paint materials for paint systems from single manufacturer.
.3 Only qualified products with E3 "Environmentally Friendly" rating are acceptable for use on this project.
.4 Conform to latest MPI requirements for all painting work including preparation and priming.
.5 Materials used in the building interior (primers, paints, coatings, varnishes, stains, lacquers, fillers,
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 91 10 Facades and Roofs Restoration PAINTING National Capital Commission Page 3
thinners, solvents, etc.) in accordance with MPI - Architectural Painting Specification Manual and MPI - Maintenance Repainting Manual "Approved Product" listing.
.6 For the building interior, provide paint products meeting MPI "Environmentally Friendly" E3 ratings based on VOC (EPA Method 24) content levels.
2.2 Colours
.1 Colours are to be approved by NCC Representative.
2.3 Mixing and Tinting
.1 Perform colour tinting operations prior to delivery of paint to site, in accordance with manufacturer's written instructions. Obtain written approval from NCC Representative for tinting of painting materials.
.2 Use and add thinner in accordance with paint manufacturer's recommendations. Do not use kerosene or similar organic solvents to thin water-based paints.
.3 Thin paint for spraying in accordance with paint manufacturer's instructions.
.4 Re-mix paint in containers prior to and during application to ensure break-up of lumps, complete dispersion of settled pigment, and colour and gloss uniformity.
2.4 Gloss/Sheen Ratings
.1 Paint gloss is defined as sheen rating of applied paint, in accordance with following values:
Gloss Level Description Gloss @ 60 o Gloss @ 85 o
1 max. 5 max. 10 Matte or flat finish
2 max. 10 10 to 35 Velvet-like finish
3 10 to 25 10 to 35 Eggshell finish
4 20 to 35 min. 35 Satin-like finish
5 35 to 70 Traditional semi-gloss finish
6 70 to 85 Traditional gloss finish
7 > 85 High-gloss finish
.2 Gloss level ratings of painted surfaces as indicated.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 91 10 Facades and Roofs Restoration PAINTING National Capital Commission Page
2.5 Exterior Painting/Repainting
.1 Galvanized Metal (high contact/high traffic areas - doors, frames, stairs, railings and handrails, etc.): .1 EXT 5.3L - Polyurethane pigmented (over epoxy primer), Premium grade.
.2 Dressed Lumber where paint finish is called for (window frames, casings, trim, etc.): .1 EXT 6.3C - Solid Colour Stain, Premium grade.
2.6 Interior Painting/Repainting
.1 Galvanized Metal: high contact/high traffic areas (doors, frames, railings and handrails, etc.). .1 INT 5.3C - Alkyd finish, gloss level 4, Premium grade (over cementitious primer).
.2 Dressed Lumber where paint finish is called for (window frames, casings, mouldings, etc.): .1 INT 6.3A - Latex finish, gloss level 4, Premium grade.
.3 Plaster and gypsum board: .1 INT 9.2B - Latex finish, gloss level 3, Premium grade.
PART 3 EXECUTION
3.1 General .1 Compliance: comply with manufacturer's written recommendations or specifications, including product technical bulletins, handling, storage and installation instructions, and data sheet.
.2 Perform preparation and operations for interior painting in accordance with MPI - Architectural Painting Specifications Manual and MPI - Maintenance Repainting Manual except where specified otherwise.
3.2 Examination
.1 Investigate existing substrates for problems related to proper and complete preparation of surfaces to be painted. Report to NCC Representative damages, defects, unsatisfactory or unfavourable conditions before proceeding with work.
.2 Conduct moisture testing of surfaces to be painted using properly calibrated electronic moisture meter, except test concrete floors for moisture using simple "cover patch test". Do not proceed with work until conditions fall within acceptable range as recommended by manufacturer.
3.3 Preparation
.1 Protection: .1 Protect existing building surfaces and adjacent structures from paint spatters, markings and other
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 91 10 Facades and Roofs Restoration PAINTING National Capital Commission Page 5
damage by suitable non-staining covers or masking. If damaged, clean and restore surfaces as directed by NCC Representative. .2 Protect items that are permanently attached such as Fire Labels on doors and frames. .3 Protect factory finished products and equipment.
.2 Surface Preparation: .1 Remove electrical cover plates, light fixtures, surface hardware on doors, bath accessories and other surface mounted equipment, fittings and fastenings prior to undertaking painting operations. Identify and store items in secure location and re-installed after painting is completed. .2 Move and cover furniture and portable equipment as necessary to carry out painting operations. Replace as painting operations progress. .3 Place "WET PAINT" signs in occupied areas as painting operations progress. Signs to approval of NCC Representative.
.3 Clean and prepare surfaces in accordance with MPI - Architectural Painting Specification Manual and MPI - Maintenance Repainting Manual specific requirements and coating manufacturer's recommendations.
.4 Prevent contamination of cleaned surfaces by salts, acids, alkalis, other corrosive chemicals, grease, oil and solvents before prime coat is applied and between applications of remaining coats. Apply primer, paint, or pretreatment as soon as possible after cleaning and before deterioration occurs.
.5 Where possible, prime non-exposed surfaces of new wood surfaces before installation. Use same primers as specified for exposed surfaces. .1 Apply vinyl sealer to MPI #36 over knots, pitch, sap and resinous areas. .2 Apply wood filler to nail holes and cracks. .3 Tint filler to match stains for stained woodwork.
.6 Sand and dust between coats as required to provide adequate adhesion for next coat and to remove defects visible from a distance up to 1000 mm.
.7 Clean metal surfaces to be painted by removing rust, loose mill scale, welding slag, dirt, oil, grease and other foreign substances in accordance with MPI requirements.
.8 Touch up of shop primers with primer as specified.
.9 Do not apply paint until prepared surfaces have been accepted by NCC Representative.
3.4 Application
.1 Method of application to be as approved by NCC Representative. Conform to manufacturer's application instructions unless specified otherwise.
.2 Apply coats of paint continuous film of uniform thickness. Repaint thin spots or bare areas before next coat of paint is applied.
.3 Allow surfaces to dry and properly cure after cleaning and between subsequent coats for minimum time period as recommended by manufacturer.
.4 Sand and dust between coats to remove visible defects.
DFS Inc. Architecture & Design File No. 4713-510
Project No. NCC 106419 457-465 Sussex Drive, Ottawa Section 09 91 10 Facades and Roofs Restoration PAINTING National Capital Commission Page 6
.5 Fini sh surfaces both above and below sight lines as specified for surrounding surfaces, including such surfaces as tops of interior cupboards and cabinets and projecting ledges.
.6 Finish inside of cupboards and cabinets as specified for outside surfaces.
.7 Finish closets and alcoves as specified for adjoining rooms.
.8 Finish top, bottom, edges and cutouts of doors after fitting as specified for door surfaces.
3.5 Mechanical/Electrical Equipment
.1 Paint conduits, piping, hangers, ductwork and other mechanical and electrical equipment exposed in finished areas, to match adjacent surfaces, except as indicated.
.2 Do not paint over nameplates.
.3 Keep sprinkler heads free of paint.
.4 Paint fire protection piping red.
.5 Paint disconnect switches for fire alarm system and exit light systems in red enamel.
END OF SECTION
DFS Inc. Architecture & Design File No. 4713-510