IKO Industries Ltd. SBS Modified Bituminous Membrane Roofing Section 07 51 13

IKO Industries ltd. SBS Modified Bituminous Membrane Roofing Section 07 51 13 Master Guide Specification (BUR – Glass Felt) Page 1 [Project Title] MM/DD/YYYY

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1. GENERAL

1.1 GENERAL INSTRUCTIONS

.1 Read and conform to:

.1 The General Conditions of the Contract [CCDC 2, 2008] [CCDC ??, YEAR].

.2 Section 00 73 10, Supplementary Conditions.

.2 Comply with Division 1 requirements and documents referred to herein.

1.2 SUMMARY

.1 Section Includes: Provide built-up asphalt roofing system including but not limited to following:

.1 surface preparation including: .1 Removal of existing roof or portion of existing roof system. .2 Cleaning of substrate. .2 Roof sheathing (metal deck substrate only).

.3 Vapour retarder.

.4 Roof insulation.

.5 Coverboard.

.6 4-ply built-up asphalt roofing membrane

.7 2-ply modified bitumen flashings.

.8 Gravel surfacing.

.9 Expansion joint system.

.10 Roof accessories.

.11 Roof walkways.

.12 Integration of new roof into existing adjoining roof system.

.2 Products installed but not supplied under this Section:

.1 Roof drains.

.2 Access hatches.

[INSERT COMPANY SYMBOL OR NAME HERE] IKO Industries ltd. SBS Modified Bituminous Membrane Roofing Section 07 51 13 Master Guide Specification (BUR – Glass Felt) Page 2 [Project Title] MM/DD/YYYY

.3 Related Sections: Following description of work is included for reference only and not presumed complete:

.1 [Stripping of existing roofing membrane system] [and/or] [cutting of existing roof slabs]: Section 02 41 00, Demolition and Salvage.

.2 [Patching and Making Good of existing slab or roof deck] [and/or] [concrete deck finish]: Section 03 30 00, Cast-in-Place Concrete.

.3 Reglets, through wall flashing and air/vapour barrier installation: Section 04 20 00, Masonry Units.

.4 Provision of metal decking: Section 05 31 00, Steel Deck.

.5 Supply of wood cant strips and other blocking: Section 06 10 00, Rough Carpentry.

.6 Supply of prepainted flashing: [Section 07 46 19, Metal Siding System] [Section

.7 07 62 00, Sheet Metal Flashing and Trim] [Insert cladding system providing prepainted flashing].

.8 Provision of roof hatches and accessories: Section 07 72 00, Roof Accessories.

.9 Sealants other then those required for roof system: Section 07 92 00, Joint Sealants.

1.3 REFERENCES

.1 Abbreviations and Acronyms:

.1 CRCA: Canadian Roofing Contractors’ Association; www.roofingcanada.com.

.2 EVT: Equiviscous Temperature.

.3 FBT: Finish Blowing Temperature.

.4 FM: Factory Mutual Global; www.fmglobal.com.

.5 FP: Flash Point.

.6 LTTR: Long Term Thermal Resistance.

.7 MSDS: Material Safety Data Sheets.

.8 OIRCA: Ontario Industrial Roofing Contractors Association; www.ontarioroofing.com.

.9 SBS: Styrene-Butadiene-Styrene.

.10 SMACNA: Sheet Metal and Air Conditioning Contractors’ National Association; www.smacna.org.

.2 Definitions:

.1 Roofing Terminology: Refer to ASTM D1079 and glossary as dictated by CRCA Manual.

.2 Phased Construction: Layered installation in which each component of cross section of roof system are not completed in a specific roof area during a 1 day period. This type of construction is not acceptable to roof system manufacturer.

.3 Reference Standards:

.1 ASTM C208-08/ - Specification for Cellulosic Fiber Insulating Board CAN/ULC S706

.2 ASTM C1177/C1177M-08 - Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing

.3 ASTM D92-05a - Standard Test Method for Flash ad Fire Points by Cleveland Open Cup

.4 ASTM D228-08 - Standard Test Methods for Sampling, Testing, and Analysis of Asphalt Roll Roofing, Cap Sheets, and Shingles Used in Roofing and Waterproofing

.5 ASTM D1079-08a - Standard Terminology Relating to Roofing and Waterproofing

.6 ASTM D1863-05 - Specification for Mineral Aggregate Used on Built-Up Roofs

.7 ASTM D2178-04 - Standard Specification for Asphalt Glass Felt Used in Roofing and Waterproofing

.8 ASTM D3273-00(05) - Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber

.9 ASTM E84-08a - Standard Test Method for Surface Burning Characteristics of Building Materials

.10 ASTM E136-04 - Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750°C

.11 CGSB 37-GP-9Ma - Primer, Asphalt, Unfilled, for Asphalt Roofing Dampproofing and Waterproofing

.12 CGSB 37-GP-56M - Membrane, Modified, Bituminous, Prefabricated, and Reinforced for Roofing

.13 CAN/CGSB-51.33-M89 - Vapour Barrier Sheet, Excluding Polyethylene, for Use in Building Construction

.14 CSA A123.4-04(08) - Asphalt for Constructing Built-Up Roof Coverings and Waterproofing Systems

.15 CSA A123.17-05 - Asphalt Glass Felt Used in Roofing and Waterproofing

.16 CSA B111-74 - Wire Nails, Spikes and Staples

.17 FM 4470-86 - Approval Standard for Class 1 Roof Covers

.18 CAN/ULC-S102-07 - Surface Burning Characteristics of Building Materials and Assemblies

.19 CAN/ULC-S107-03 - Methods of Fire Tests of Roof Coverings

.20 CAN/ULC-S114-05 - Standard Method of Test for Determination of Non- Combustibility in Building Materials

.21 CAN/ULC-S126-06 - Standard Method of Test for Fire Spread Under Roof- Deck Assemblies

.22 CAN/ULC-S701-05 - Thermal Insulation, Polystyrene, Boards and Pipe Covering

.23 CAN/ULC-S704-03 - Standard for Thermal Insulation, Polyurethane and Polyisocyanurate Boards, Faced

.24 CAN/ULC-S770-00 - Determination of Long-Term Thermal Resistance of Closed-Cell Thermal Insulating Foams

.25 UL 1256 - Standard for Fire Test of Roof Deck Construction

1.4 ADMINISTRATIVE REQUIREMENTS

.1 Coordination:

.1 Prior to start-up and during work, review conditions of space below to ensure conflicts and/or altercations are kept to a minimum.

.2 Work deemed disruptive to overall Project shall be cleared by Contractor and Owner in advance.

.2 Preinstallation Meetings:

.1 Arrange preinstallation meeting 1 week prior to commencing work with parties associated with trade as designated in Contract Documents or as requested by Consultant. Presided over by Contractor, include Consultant who may attend, Subcontractor performing work of this trade, Owner’s representative, manufacturer’s representative, testing company's representative and consultants of applicable discipline. Contact Consultant and involved parties minimum 2 weeks prior to preinstallation meeting to confirm details of meeting.

.2 Record discussions of conference, decisions, agreements or conflicts reached and furnish a copy to involved parties. Review preparations and installation procedures and coordinate scheduling required for work of this Section.

.3 Review methods and procedures related to roofing including following: .1 Tour, inspect and discuss conditions and coordination of substrate, roof drains, locations of roof drains, curbs, penetrations and other work performed by trades impacting this Section. .2 Examine deck substrate conditions and finishes for compliance. Review structural loading limits of deck and inspect deck for loss of flatness and for required mechanical fastening. .3 Review methods and procedures related to roofing installation, including manufacturer’s written instructions. .4 Review roofing system requirements (Drawings, Specifications and other documents). .5 Review required submittals. .6 Review and finalize construction schedules related to roofing work and verify availability of materials, installer’s personnel, equipment and facilities needed to make progress and avoid delays. .7 Review required inspections, testing, certifying and material usage accounting procedures. .8 Review weather and forecasted weather conditions, and procedures for coping with unfavorable conditions, including possibility of temporary roofing. .9 Review structural loading limitations of roof deck for stocking roofing materials. .10 Review flashing details, roof drainage and other conditions that will affect roofing systems. .11 Review temporary protection requirements for roofing system during and after installation. .12 Review roof observation and repair procedures after roofing installation. .4 Scheduling: .1 Co-operate with adjoining subtrades and promptly proceed with work as soon as site conditions permit. .2 Ensure items to be incorporated into work of this Section and items required for incorporation by other subtrades are supplied in a timely manner. Proceed with work of this Section after built-in items are installed and roof substrates are completed. 1.5 SUBMITTALS

.1 Provide 2 copies of each submittal unless otherwise noted in Specifications.

.2 Product Data: Submit Product data on components of roof system including but not limited to:

.1 each Product to be used, composition of material and method of installation.

.2 MSDS.

.3 certification of compliance with applicable standards and authorities having jurisdiction.

.4 warranty.

.3 Shop Drawings: Submit Shop Drawings as required showing method of installation and layout of each layer, roof edge condition details, roof penetration flashing details, control and expansion joint details, standard roof sections, connection to air barrier in wall, details of insulation, tapered insulation layouts, vapour retarder [and sheathing securement details] and other details required for proper roof system installation not specified in, or are different from Specifications and Drawings.

.4 Samples: Provide following samples of manufacturer’s roofing system components prior to commencement of work in this Section:

.1 Insulation 300 mm x 300 mm (12” x 12”) square.

.2 Roof membrane 300 mm x 300 mm (12” x 12”) square.

.3 Metal flashing material 300 mm (12”) long.

.5 Test and Evaluation Reports:

.1 If requested, provide Product test reports based on evaluation of comprehensive test performed by manufacturer and witnessed by a qualified independent testing agency for components for roofing system.

.2 Indicate components of roofing system comply with requirements of manufacturer and these Specifications including quantity, statistical and descriptive data for each Product and other data pertaining to date, time and temperature for each load of bulk asphalt.

.6 Manufacturer’s Instructions: Submit manufacturer’s installation instructions prior to installation of roofing system for use during installation.

.7 Qualification Statements:

.1 Provide a certificate or letter of authorization issued by roofing system manufacturer stating Contractor is registered, approved, authorized or licensed by roof system manufacturer to apply their Products and furnish manufacturer’s warranties if required.

.2 Ensure Contractor is a member in good standing of CRCA.

1.6 CLOSEOUT SUBMITTALS

.1 Operation and Maintenance Data: Supply necessary maintenance data and repair instructions for binding into maintenance manuals. Data includes: Project name, location, dated and executed copy of manufacturer’s warranty, described herein and name address and phone number of nearest manufacturer’s representative. Include recommendations for periodic inspections, care and maintenance. Identify common causes of damage with instructions for temporary patching until permanent repair can be made.

1.7 QUALITY ASSURANCE

.1 Qualifications:

.1 Manufacturers: Company to be recognized by membrane manufacturer as being qualified to install their roofing systems.

.2 Installers: .1 Provide work of this Section executed by competent installers with minimum 10 years’ experience in application of Products, systems and assemblies specified and with approval and training of Product manufacturers. .2 Project Foreman: .1 Provide a competent project foreman with minimum 5 years’ experience in supervision of roofing system installation, knowledgeable in roofing type specified herein. Ensure foreman is present at job site

during majority of work hours and is accessible to ensure good project coordination. .2 Do not alter foreman or crew without prior approval of Consultant. .3 Foreman to monitor weather conditions and take steps to ensure appropriate measures are implemented due to inclement conditions and to protect materials equipment and work to date. .2 Conform to CRCA’s “Roofing Specifications - 1997” manual as amended to date of this Specification, as applicable, except where indicated or specified otherwise. Do roofing work employing roofing Products, [roof sheathing,] plates and fasteners conforming to FM data for proposed roofing system. More stringent requirements by Consultant governs.

.3 Mock-Ups: Construct for review, minimum 10 m2 (100 sq ft) mock-up sample at Project location designated by Consultant. Once accepted, mock-up remains part of finished work and used as a quality reference standard for balance of Project.

1.8 DELIVERY, STORAGE AND HANDLING

.1 Delivery and Acceptance Requirements:

.1 Deliver materials in manufacturer’s original, unopened containers with manufacturer’s labels intact and legible.

.2 Carefully unload in a manner to prevent damage.

.2 Storage and Handling Requirements:

.1 Refer to Product MSDS for precautionary measures during storage and handling.

.2 Keep pail goods and membrane materials dry, stored in rolls standing on end, selvage edge up, elevated from contact with moisture, at temperatures not less than 4°C (40°F) or more than 49°C (120°F) and pre-conditioned before installation. Handle rolls with care to avoid crushing, puncturing or other damage. Ensure selvage edge is not damaged during handling and banding strips are removed before application of membrane. Do not use wet or damp membrane or flattened rolls.

.3 Protect materials from damage by elements, weather and other activities on raised platforms and covered with breathable tarpaulins.

.4 Ensure pail-goods have tight fitting lids when not in use. Store on end in up-right position.

.5 Ensure materials stored on roof stay within designated live load limits of roof construction. Provide ample bases under equipment and materials to distribute weight to conform to these live-load limits. Do not store materials on, or transport materials across, completed roof areas.

.6 Do not expose insulation [and roof sheathing] to wet weather. Store and handle insulation to prevent broken edges and corners, punctures, indentations or other damage. Remove damaged insulation from site.

.7 Ensure bitumen delivered in form of cartons has manufacturer's material identification labels intact on each carton; if in form of bulk tanker delivery, each shipment to be accompanied by written certificate from manufacturer confirming material identification including following: .1 Softening Point as per CSA A123.4. .2 Minimum FP per ASTM D92. .3 EVT.

.4 FBT. .8 Protect sheet metal materials from bending and scratching.

.9 Store materials at site within secure temporary sheds or trailers; such facilities must be well sealed and kept at least 3°C (5°F) warmer than exterior ambient temperature to ensure materials remain dry in terms of roofing. Do not use wet, damp, frozen or damaged materials. Stack rolls of felt on end.

.10 Do not store more than 1 day's supply of materials on roof at any time. On roof, stack materials on pallets and completely cover with incombustible waterproof tarpaulin whenever work is interrupted, or when there is precipitation of any kind. Securely tie covering to pallets in such way as to be weather tight. Plastic covers and shrink-wrap covers by manufacturers are not acceptable for site storage and be removed upon delivery to roof.

.11 Store combustible materials away from heat and open flames. Protect and store materials in dry, ventilated area away from elements or harmful substance.

.12 Do not lift rigid insulation in slings which will damage edges. Remove damaged insulation and replace with new material at no cost to Owner.

1.9 SITE CONDITIONS

.1 Ambient Conditions:

.1 Do not apply roof system during inclement weather or when ambient temperatures are expected to be below 5°C (40°F). For temperatures below this practice cold weather application techniques as recommended by membrane manufacturer.

.2 Use following article for repairs, additions or installation of new mechanical equipment on existing roof. Delete if not applicable.

.2 Existing Conditions:

.1 Modifications are to take place on existing adjacent roof areas as part of work of this Section. Do no use existing roof areas as storage, except to extent required for removal, alteration and replacement of work.

.2 Existing roofing is covered by roofing warranty. Obtain from Consultant necessary information regarding such warranty and notify manufacturer of existing roof by letter before work is commenced on existing roof.

.3 Execute alteration work in manner to maintain existing warranty.

.4 Provide temporary protection of existing roof while existing construction is open.

1.10 WARRANTY

.1 Manufacturer Warranty:

.1 Warrant work of this Section for a period of 5 years against roof leaks as a result of material defects in accordance with General Conditions of the Contract. Promptly correct any defects or deficiencies which become apparent within warranty period, to satisfaction of Consultant and at no expense to Owner. Defects include but are not limited to; leaking, buckling, opening of seams, bond failure and extensive colour fading. Provide “IKO Limited Labour and Membrane Warranty”.

.2 In addition to above, provide to Owner a written warranty covering defects of workmanship for a period of 2 years commencing from date of Substantial Performance of the Work and agree to Make Good promptly any defects which occur or become apparent within warranty period in conjunction with membrane manufacturer’s warranty. Ensure warranty is on either CRCA’s or OIRCA’s “Standard Form of Warranty”.

2. PRODUCTS

2.1 MANUFACTURERS

.1 Manufacturer List: Products of following manufacturers are acceptable subject to conformance to requirements of Drawings, Schedules and Specifications:

.1 IKO Industries Ltd.; www.iko.com

.2 Substitution Limitations: This Specification is based on IKO’s 4 ply inorganic felt built-up hot asphalt roofing system. No further substitutions will be permitted.

2.2 SYSTEMS

.1 Description:

.1 Design roofing membrane system and base flashings to be watertight, does not permit passage of water through finished roof system and resists exposure to weather without failure.

.2 Regulatory Requirements: .1 External Fire Resistance: Design roofing system to meet minimum Class A in accordance with CAN/ULC-S107 test method. .2 Internal Fire Resistance: Design roofing system to comply with CAN/ULC-S126, standard test method for fire spread under metal roof deck assemblies. .3 Wind Up-Lift Resistance: Design roofing system meet standard FM 4450 1-60 for wind up-lift resistance. Provide proof by membrane manufacturer as listed in RoofNav. .4 Compliance with Local, Provincial and Federal Building Codes: Ensure roofing system complies with authorities having jurisdiction over construction covered within scope of this Specification. .2 Performance/Design Criteria:

.1 Material Compatibility: Ensure components of roof system are compatible with adjoining materials under application and service as demonstrated by roofing manufacturer and based on testing and field experience.

.2 Concrete Deck Roof System: Provide 4 ply hot asphalt applied membrane roof system over concrete deck, including but not limited to following: .1 Concrete deck (by others). .2 Primer over concrete deck. .3 Vapour retarder. .4 Base rigid insulation board. .5 Tapered insulation. .6 Coverboard. .7 4 plies glass fibre felts mopped in asphalt. .8 Modified bituminous base ply in hot asphalt with cap sheet flashings heat welded.

.9 Accessories: .1 Metal flashing. .2 Roof walkways. .3 Perimeter precast pavers. .3 Metal Deck Roof System: Provide 4 ply hot asphalt applied membrane roof system over metal deck, including but not limited to following: .1 Metal deck (by others). .2 Roof sheathing with vapour retarder. OR .3 Vapour retarder directly over metal deck. .4 Base rigid insulation board. .5 Tapered insulation. .6 Coverboard. .7 4 plies glass fibre felts mopped in asphalt. .8 Modified bituminous base ply in hot asphalt with cap sheet flashings heat welded. .9 Accessories: .4 Metal flashing. .5 Roof walkways. .6 Perimeter precast pavers. .3 Materials:

.1 Cants: Fibreboard cants, 75 mm (3") conforming to ASTM C208/ CAN/ULC S706.

.2 Sheathing: Gypsum glass mat reinforced silicone treated board conforming to ASTM C1177/C1177M, non-combustible according to ASTM E136/CAN/ULC-S114 thermal barrier as tested to UL 1256/CAN/ULC-S126, flame spread 0, smoke developed 0 to ASTM E84/CAN/ULC-S102 and ASTM D3273 with a rating of 10, no mould growth after 4 weeks exposure, 6 mm (1/4") or for fire rating requirement 16 mm (5/8") thick gypsum board 1200 mm (4') wide, maximum practical length, tapered edge as required.

.3 Vapour Retarder: Kraft laminated paper, glass edge reinforced with asphalt filler, in compliance with CAN/CGSB-51.33-M, Type 2. Provide “Armourgard Vapour Retardant” Or self-adhering membrane composed of modified SBS asphalt with a top surface of high density cross laminated polyethylene film in compliance with CAN/CGSB-51.34-M, Type 1. Provide “MVP (Modified Vapour Protector)” by IKO Industries Ltd.

.4 Adhesive for Vapour Retarder: Provide “Armourgard Vapour Retardant Adhesive” by IKO Industries Ltd.

.5 Polyisocyanurate Insulation: Closed cell rigid foamed plastic boards conforming to CAN/ULC-S704, Type 2, Class 3, faced with glass reinforced organic felt paper, perforated, maximum board size 1220 mm x 2440 mm (4’ - 0” x 8’ - 0”) for mechanically attached application, maximum board size of 1220 mm x 1220 mm (4’ – 0” x 4’ – 0”) for hot asphalt application, minimum 84 mm (3.3”) thick to furnish a minimum R-Value in accordance with CAN/ULC-S770, LTTR of 20.4. Provide “IKOTherm” by IKO Industries Ltd.

.6 Fibreboard: Asphalt impregnated coated fibreboard roof insulation, rigid wood fibreboard, conforming to CAN/ULC-S706, with a factory applied coating on top surface and a minimum compression strength of 310 kPa (45 psi) @ 10% deformation, 13 mm (1/2”) thick, maximum board size 1220 mm x 1220 mm (4' – 0” x 4' – 0”). Provide “Standard Coated Fibreboard” by IKO Industries Ltd.

.7 Tapered Insulation (if required): Tapered wood fibre fibreboard roof insulation having a minimum compressive strength of 310 kPa (45 psi) conforming to CAN/ULC-S704. Provide tapered insulation from Accu-plane or Posi-Slope Enterprises.

.8 Insulation Fasteners: Coated insulation fasteners to meet FM corrosion resistance 4450 as recommended by the membrane manufacturer. Ensure fasteners also complies with FM 4470, 1-28 and 1-29.

.9 Roofing Felts: Type IV glass ply felts conforming to CSA A123.17 and ASTM D2178. Provide “IKO Glass Type IV Ply Sheet” by IKO Industries Ltd.

.10 Roofing Felts: Type 6 glass ply felts conforming to CSA A123.17 and ASTM D2178. Provide “IKO Glass Type 6 Ply Sheet” by IKO Industries Ltd.

.11 SBS Modified Bitumen Base Flashing: SBS modified asphalt base sheet meeting CGSB 37- GP-56M, Type 2, Grade 2, Class P, 180 g/m² (0.6 oz/sq ft) polyester reinforced, sanded top and bottom surface. Provide “Modiflex MP-180-FS Base” by IKO Industries Ltd.

.12 SBS Modified Bitumen Cap Flashing: SBS modified asphalt cap sheet meeting CGSB 37- GP-56M, Type 2, Grade 2, Class G, 180 g/m² (0.6 oz/sq ft) polyester reinforced, thermofusible film bottom surface and granulated top surface. Granular colour to be selected by Consultant from manufacturer’s samples at a later date. Provide “Torchflex TP- 180-CAP” by IKO Industries Ltd.

.13 Bituminous Materials: .1 Asphalt Primer: Unfilled asphalt conforming to CGSB 37-GP-9Ma. Provide “Mod-Bit Primer” by IKO Industries Ltd. .2 Asphalt Bitumen: Oxidized asphalt conforming to CSA A123.4, “Type II, III and Easy-Melt 200” by IKO Industries Ltd. .3 Cutback Asphalt Plastic Cement: Fibrated cut back type plastic asphalt compound. .4 Rubberized Asphalt Sealing Compound: Provide “Aquabarrier Mastic” by IKO Industries Ltd. .5 Bituminous Paint: .6 Bituminous Paint: As recommended by IKO Industries Ltd. .14 Peel and Stick Membrane (tie-in membrane): SBS modified bitumen base flashing membrane consisting of nominal 140g/m2 polyester mat saturated and coated with SBS modified asphalt, conforming to CGSB 37-GP-56M, Type 2, Class 2 Grade P, release film on bottom and micro-perforated film on top. Provide “ArmourBond Flash” by IKO Industries Ltd.

.15 Aggregate: 9 mm to 16 mm (3/8" to 5/8") rounded or crushed stone, clean, dry, free from dust, sand or organic impurities, conforming to ASTM D1863, Size 7A.

.16 Fasteners: Galvanized or non-ferrous type, size and configuration as required to suit each type of application. Nails and spikes to CSA B111.

.17 Walkway Pavers and Gas Line Pads: .1 610 mm x 610 mm x 50 mm (24” x 24” x 2”) precast concrete pavers conforming to CSA A231.1. .2 560 mm x 560 mm x 25 mm (22" x 22" x 1") extruded polystyrene conforming to CAN/ULC-S701; “Formular 350” by Owens-Corning or “SM” by Dow Chemical.

2.3 ACCESSORIES

.1 Stack-Jack Flashings: 1.6 mm (0.063”) thick x 300 mm (12”) high x diameter to suit, seamless, spun aluminum sleeve flashings with premoulded urethane insulation on inner side of sleeve and 100 mm (4”) wide bituminous paint primed flange with removable 1.2 mm (0.047”) thick aluminum cap with neoprene grommet cap seal and 1.6 mm (0.063”) thick aluminum type bitumen protection cup. Provide “Flash-Tite Flashings Model VSC-G” by Lexsuco Canada.

.2 Flashings for Flexible Conduit: 1.3 mm (0.051”) thick x 300 mm (12”) high x diameter to suit, seamless, spun copper sleeve flashings with premoulded urethane insulation on inner side of sleeve, 150 mm (6”) wide bituminous paint primed sleeve flange with 0.69 mm (0.027”) thick flexible copper liner with premoulded urethane insulation on inner side of liner. Provide “Flash-Tite Flashings, Model WPF-12” by Lexsuco Canada.

.3 Flashings for “B” Vents: 2.1 mm (0.083”) thick x 300 mm (12”) high x diameter to suit, seamless spun aluminum sleeve flashing with sloping sides having 50 mm (2”) wide perforated aluminum vent holes at top of sleeve, 100 mm (4”) wide bituminous paint primed sleeve flange with 2.1 mm (0.083”) thick split aluminum collar, aluminum rivets, and 4.8 mm (3/16”) diameter stainless steel nuts and bolts and 1.6 mm (0.063”) thick aluminum type bitumen protection cup. Provide “Flash-Tite B-Vent Flashings” by Lexsuco Canada.

.4 Flashings for Gas Lines: 1.6 mm (0.063”) thick x 300 mm (12”) high x diameter to suit, seamless spun aluminum sleeve flashing with 50 mm (2”) wide perforated aluminum vent holes at top of sleeve, 100 mm (4”) wide bituminous paint primed sleeve flange with removable 1.3 mm (0.051”) thick formed aluminum collar and 2.1 mm (0.083”) thick aluminum type bitumen protection cup. Provide “Flash-Tite Flashings” by Lexsuco Canada.

3. EXECUTION

3.1 EXAMINATION

.1 Verification of Conditions:

.1 Verify actual site dimensions and location of adjacent materials prior to commencing work. Notify Consultant in writing of any conditions which would be detrimental to installation.

.2 Verify roof penetrations and drains are present in quantity required. Verify roof drains are securely clamped in place.

.3 Verify wood blocking is securely anchored to deck and nailers match thickness of anticipated roof insulation.

.4 Examine substrate for compliance of conditions that affect installation and performance of roof system.

.2 Evaluation and Assessment: Proceed with installation of roof after unsatisfactory conditions have been corrected. Commencement of work implies acceptance of previously completed work.

3.2 PREPARATION

.1 Protection of In-Place Conditions:

.1 Protect walls where hoisting is necessary. Locate kettles so smoke and fumes will not discolour building or adjacent buildings or become a nuisance to adjacent Owners or the public.

.2 Temporarily block drain pipes during application of roofing membrane. Remove blocking each night or when Work is not in progress and after Work of this Section is completed.

.2 Surface Preparation:

.1 Ensure new [and] [/] [or] [existing] metal decking is clean, dry and properly anchored prior to roof installation.

.2 Ensure concrete substrate is clean and dry prior to roof installation.

3.3 APPLICATION

.1 Safety Precautions: Refer to Product MSDS sheets for any safety requirements when applying components.

.2 Priming:

.1 Prime masonry, concrete and metal surfaces that come in contact with flashing materials with a compatible asphalt primer. Install primer in accordance with manufacturer’s recommendations.

.2 Ensure primer is dry to touch before installing flashing.

.3 Re-prime surfaces contaminated with dust.

.3 Vapour Retarder to Concrete:

.1 Apply vapour retarder adhesive “Armourgard Vapour Retardant Adhesive” at rate required by manufacturer.

.2 Unroll vapour retarder “Armourgard Vapour Retardant” into freshly applied adhesive.

.3 Coat side laps with vapour retarder adhesive “Armourgard Vapour Retardant Adhesive” and joining overlapping a minimum of 50 mm (2”).

.4 Overlap and seal endlaps a minimum of 150 mm (6”) with vapour retarder adhesive “Armourgard Vapour Retardant Adhesive”.

.4 Vapour Retarder to Steel Deck:

.1 Apply vapour retarder adhesive “Armourgard Vapour Retardant Adhesive” to male flutes of deck at a rate of 0.45 L/m2 (269 sq ft/gal).

.2 Unroll vapour retarder “Armourgard Vapour Retardant” into freshly applied vapour retarder adhesive “Armourgard Vapour Retardant Adhesive” ensuring sidelaps fall over a male flute for joining later.

.3 Coat side laps with vapour retarder adhesive “Armourgard Vapour Retardant Adhesive” and join so they are overlapped by a minimum of 50 mm (2”).

.4 Overlap and seal endlaps a minimum of 150 mm (6”) with vapour retarder adhesive “Armourgard Vapour Retardant Adhesive”.

.5 Self-Adhered Air/Vapour Barriers:

.1 Apply primer by roller or spray to all surfaces to be covered with self-adhered membrane as required and allow to dry.

.2 Unroll and align self-adhered membrane centered at low point of roof or drain. Apply self- adhered membrane

.3 Apply self-adhered membrane complete and continuous to prepared and primed substrate in an overlapping shingle fashion by removing release film providing 75 mm (3”) side and end laps in accordance with manufacturer’s written instructions. Stagger all vertical joints. Promptly roll all laps and self-adhered membrane with a counter top roller to affect the seal.

.6 Rigid Insulation:

.1 Butt insulation “IKOTherm” boards moderately together without gaps. Fit accurately to abutting surfaces. Stagger end joints in adjacent rows. Install insulation “IKOTherm” over vapour retarder “Armourgard Vapour Retardant” and mechanically secure to deck in accordance with FM I-90 requirements. In a full mopping, embed the 13 mm (1/2") “Standard Coated Fiberboard” over insulation “IKOTherm” using Type II asphalt with an EVT of 204°C – 232°C (400°F – 450°F), applied at a nominal rate of 1.25 kg/m^3 (25 lbs/100 sq ft) +/-20%. Check attachment tenacity from time to time. Lay “Standard Coated Fibreboard” with joints offset minimum 300 mm (12") from underlying layer.

.2 Back cut insulation “IKOTherm” boards to a gradual taper 600 mm (24") diameter around all roof hoppers permitting hoppers to be depressed approximately 13 mm (1/2") below general roof level.

.3 Do not lay more insulation “IKOTherm” than can be completely covered with roofing felts on same day. At the end of the day, turn down roofing felts over exposed edges of the last course of insulation “IKOTherm” and solidly mop to deck flute or flange. Remove this temporary water cut-off (out-stop) when roofing work is recommenced.

.7 Cants: Install cants at intersections of roofing and vertical surfaces and other locations where wood cants are not provided. Apply a continuous and uniform full mopping of Type II asphalt to area being taken up by cant and while hot, embed cant. Lay true to line, level, with flush butt joints and accurate corner mitres.

.8 Roofing Membrane:

.1 Ensure roofing membrane is 4-ply felts [“IKO Glass Type IV Ply Sheet”] [“IKO Glass Type VI Ply Sheet”].

.2 Install built-up roofing in accordance with CRCA’s “Roofing Specifications - 1997” manual. Phased roofing is not acceptable.

.3 Do not gang roll felts [“IKO Glass Type IV Ply Sheet”] [“IKO Glass Type VI Ply Sheet”] during application as this will result in displacement of bitumen.

.4 Apply full mopping of hot bitumen to insulation “IKOTherm” and apply 4 plies of felt [“IKO Glass Type IV Ply Sheet”] [“IKO Glass Type VI Ply Sheet”]lapping each sheet over preceding sheet and mopping a full width of each sheet with bitumen as per manufacturer's written instructions. Lay felt [“IKO Glass Type IV Ply Sheet”] [“IKO Glass Type VI Ply Sheet”], shingled in, free of wrinkles, air pockets, prominent lap joints, tears, fish-mouths and with end joints of felts staggered and lapped a minimum of 150 mm (6"). Lay plies of felt [“IKO Glass Type IV Ply Sheet”] [“IKO Glass Type VI Ply Sheet”] so flow of water to drains is with or parallel to laps as much as possible.

.5 Extend membrane to top of cant strips and cut off to a neat, even line. Solidly mop felts [“IKO Glass Type IV Ply Sheet”] [“IKO Glass Type VI Ply Sheet”] to cants with hot bitumen.

.6 Use a nominal rate of 1.25 kg/m3 (25 lbs/100 sq ft) +/-20% coating of bitumen for each inter-ply mopping, Type II or III with an EVT of 232°C (450°F).

.7 Extend roofing membrane onto flanges of roof drain body and trowel on a coat of plastic cement. Place collar over edges of felts and secure with bolts, clamping felts securely all around.

.8 Be responsible for making watertight joints to items projecting through or located on roof, to approval of Consultant. Refer to other Divisions to determine extent required of flashing flanges and the like specified.

.9 Install vent stack covers and sleeve flashings in accordance with manufacturer's directions. Extend horizontal metal flanges a minimum of 150 mm (6") and maximum of 200 mm (8") in all directions from base of pipe flashing. Set flanges in trowel coat of rubber asphalt sealing compound and strip metal flange with 4 plies of roofing felt [“IKO Glass Type IV Ply Sheet”] [“IKO Glass Type VI Ply Sheet”], extend each 450 mm (18") from base of flange onto roof. Extend 2nd ply 650 mm (26") from base and 3rd ply 900 mm (36") from base onto roof. Extend top pour of bitumen and gravel to finish tight and flush against base of flange.

.10 Over entire surface of roofing felt [“IKO Glass Type IV Ply Sheet”] [“IKO Glass Type VI Ply Sheet”], pour bitumen at a nominal rate of 3 kg/m3 (60 lbs/100 sq ft) and embed full covering of thickness of aggregate at rate of 19.5 kg/m3 (400 lbs/100 sq ft).

.11 Keep gravel 300 mm (12") clear of cants until flashing has been installed.

.12 Do not leave felts [“IKO Glass Type IV Ply Sheet”] [“IKO Glass Type VI Ply Sheet”] uncovered at conclusion of Working Day.

.13 Mop in and seal flashings and flanges of items projection through membrane.

.9 2-Ply Modified Bituminous Sheet Membrane Flashings:

.1 Install 2-ply modified bituminous sheet membrane flashings at intersection of roof and walls, parapets, curbs, equipment bases, services and where a vertical member passes through roof.

.2 Ensure walls, curbs, parapets and other surfaces to which 2-ply modified bituminous sheet membrane flashings are to be attached are dry, smooth and even.

.3 Ensure provision is made for securing flashings.

.4 Install base flashing “Modiflex MP-180-FS Base” by mopping as required by detail height and manufacturer in accordance with manufacturer’s instructions onto the substrate.

.5 Roll out base flashing “Modiflex MP-180-FS Base” in strips 1 m (39”) wide to vertical surfaces, extending minimum of 100 mm (4") onto built-up roofing membrane from toe of cant and ensure solid adhesion to the substrate free from wrinkles or buckles.

.6 Nail top edge of base flashing “Modiflex MP-180-FS Base” at 200 mm (8") minimum/600 mm (24”) maximum (without mechanical termination) above roof surface 200 mm (8”) oc.

.7 Provide fully sealed 89 mm (3-1/2") side laps to selvage edge in base flashing “Modiflex MP-180-FS Base”.

.8 Install cap flashing “Torchflex TP-180-CAP” by heat welding to base flashing “Modiflex MP- 180-FS Base”.

.9 Roll cap flashing “Torchflex TP-180-CAP” out halfway, set in place, re-roll and then heat weld in both directions, welding cap flashing “Torchflex TP-180-CAP” to base flashing “Modiflex MP-180-FS Base” ensuring a bead of melted bitumen flows in front of full width of roll to provide solid adhesion for full coverage. Stagger or offset joints in cap flashing “Torchflex TP-180-CAP” from joints in base flashing “Modiflex MP-180-FS Base” 300 mm (12"). Extend cap flashing “Torchflex TP-180-CAP” a minimum 150 mm (6") onto built-up roof membrane from toe of cant.

.10 Ensure heat welding softens both membranes and ensure a uniform weld. Take care not to burn membranes or their respective reinforcement.

.11 Use a propane torch to preheat surface to which membrane is to be applied, except wood or other flammable surface.

.12 Provide fully sealed 89 mm (3-1/2") side laps to selvage edge, straight, flat, neat, checking lap seal with nose of trowel and ensuring melted bitumen bleeds out to provide 6 mm (1/4") bead continuously along laps, avoiding excessive asphalt seepage.

.13 Ensure sheets have been continuously bonded, without air pockets or wrinkles, fish-mouths and tear.

.14 Carry 2-ply modified bituminous sheet membrane flashings over and down parapets where indicated.

.15 Extend 2-ply modified bituminous sheet membrane flashing up vertical surfaces at least 200 mm (8") above ballast where possible, or as indicated and secure with large head galvanized roofing nails, fastening through both cap flashing “Torchflex TP-180-CAP” and base flashing “Modiflex MP-180-FS Base” where nails can be covered with metal counterflashing. Use roofing nails spaced 200 mm (8") oc. Nail plies at top through tin discs or with nails having 25 mm (1") minimum diameter heads. Use continuous galvanized steel or aluminum termination bar fastened 200 mm (8") oc as required.

.16 Install 2-ply modified bituminous flashings to form scuppers and expansion joints in accordance with manufacturer's written instructions and standard details.

.17 Co-ordinate with adjacent air/vapour barrier installations provided by others to provide continuous seal. Ensure compatibility of adjacent materials. Submit proof of compatibility and details of installation.

.18 Do not install metal flashing until installation of flashing membranes have been accepted by roofing inspector.

.10 Metal Flashings: Install in accordance with SMACNA specifications and/or CRCA FL series details. Ensure metalwork and termination bars are installed within 72 hours of completed membrane application.

.11 Special Techniques:

.1 Cold Weather Precautions: .1 Follow cold weather application guidelines from manufacturer when temperatures are expected to be below 0°C (32°F). If such guidelines are unavailable or not known, contact membrane manufacturer for clarification. .2 During cold weather store roll goods and pail goods in a heated environment and bring to roof site just prior to use. Unroll and allow SBS rolls to relax fully prior to installation. Time may vary for this depending on sunlight and air temperature. If in doubt, call membrane manufacturer for instruction. 3.4 SITE QUALITY CONTROL

.1 Site Tests and Inspections:

.1 Consultant may appoint an independent roofing inspection company. Cost of inspection will be paid from Cash Allowance specified in Section 01 20 00.

.2 If required by inspection company or by Consultant, make cut tests in accordance with ASTM D228. Subcontractor to pay costs of tests and making good roofing after completion of test.

.3 Owner may engage independent inspection company to inspect work of this Section. Give minimum 2 weeks’ notice of starting work and allow inspector free access. [Inspection may include thermographic survey of completed roof.]

.4 Inspection - Roof Levels: .1 Before roofing is commenced, inspect and check roof surfaces for levels. .2 Undertake a series of spot level checks to determine unevenness in roof decks which may result in pools of water remaining on completed roofing in excess of 13 mm (1/2") depth. .3 Ensure deck has been inspected and approved by Consultant prior to start of roofing work. .2 Non-Conforming Work: Replace damaged work which cannot be satisfactorily repaired, restored or cleaned, to satisfaction of Consultant at no cost to Owner.

.3 Manufacturer Services: Arrange for membrane manufacturer representative to visit site on day roofing is commenced and periodically thereafter, to ensure work is properly performed. Upon completion of work of this Section, ensure manufacturer's representative inspects roof and verifies quality of work to yield weathertight waterproofing roofing system and issue manufacturer's warranty. Ensure manufacturer's representative informs Consultant, Contractor and Subcontractor executing work of this Section promptly in writing when inspection is complete and provide detailed report.

3.5 CLEANING

.1 Waste Management: Discard and legally dispose components that cannot be applied within its stated shelf life to requirements of authorities having jurisdiction.

3.6 PROTECTION

.1 Take necessary precautions to protect Owner’s property and adjacent properties, including trees, shrubs, buildings, sanitation, water piping, gas piping, electrical service and miscellaneous cabling from damage which may result from work of this Section.

.2 Provide protection covering out of 13 mm (1/2") [19 mm (3/4")] thick plywood underlaid with 25 mm (1") thick polystyrene insulation board adhered to it, over roofed areas when working from, or over, such roof surfaces. Provide such protection below hoist rigs, ladders, pallets of material and in other circumstances where roofing membrane is exposed to potential damage. Secure protection boards mechanically against wind storm loss.

.3 Protect finished wall and roof surfaces against damage of any kind. Protect finished sheet metal work and membrane flashing against punctures and damage of any kind. Be responsible for damage sustained by work of this trade. Do not use equipment over roofing materials which would cause damage to materials in any way.

.4 Protect surrounding work, and adjacent building and other property from damage during roofing operations, taking particular care to prevent bitumen droppings and discolouration of surrounding buildings by smoke from kettles. Locate kettles to prevent smoke entering adjacent and Project buildings.

.5 Use protection covering specified in work areas and along work routes as required to prevent damage to steel deck, or [sheathing and ]roofing.

.6 Temporarily block drain pipes during application of roofing membrane. Remove blocking each night or when work is not in progress and after work of this Section is completed.

.7 Protect [existing and] completed portions of roof from damage.

.8 At conclusion of each day's work, seal exposed edges of roof insulation. Remove when resuming work.

.9 Fire Protection:

.1 Respect safety measures described in manufacturer's literature as well as local jurisdictional authorities.

.2 Verify no vent pipes venting flammable fumes (i.e. fuel storage tanks) are located in area of work.

.3 Be vigilant against self-starting fires at end of roofing operations cease for day. Use a heat detector gun to spot any smouldering or concealed fire. Examine roof for hot spots 1 hour after completion of roofing operations, especially at flashings and around roof penetrations. [Alert watchman of such possibilities.]

3.7 ATTACHMENTS

.10 Details:

.4 Roof Perimeter Details: .1 Parapet Wall with Metal Coping: follow IKO details MB-15 and MB-21. .2 Drip Edge or Gravel Stop: follow IKO details MB-11 and MB-12. .3 Reglet Mounted Counterflashing: follow IKO detail MB-18. .4 Surface Mounted Counterflashing: follow IKO detail MB-19. .5 Through Wall Scupper: follow IKO detail MB-22. .6 Downspout Scupper Box: follow IKO detail MB-23. .7 Outside Corner: follow IKO detail MB-34. .8 Inside Corner: follow IKO detail MB-35. .5 Roof Penetration Details: .9 Curbs: follow IKO detail MB-34. .10 Vent Pipes: follow IKO detail MB-13. .11 Roof Drains: follow IKO detail MB-24. .12 Support Column or Hot Pipe Flashing: follow IKO detail MB-14. .13 Curb Expansion Joints: follow IKO detail MB-26. .14 Wall Expansion Joint: follow IKO detail MB-27.

IKO Industries manufactures and sells waterproofing materials. IKO does not practice architecture or engineering. Therefore the design responsibility remains with the architect, engineer, or consultant. We hope the information given here will of some assistance. It is based upon data considered to be true and accurate and is offered solely for the user's consideration, investigation and verification. Nothing contained herein is representative of a warranty or guarantee for which IKO Industries can be held legally responsible. IKO does not assume any responsibility for any misinterpretation or assumptions the reader may formulate.

END OF SECTION

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