CONSERVATION SPECIFICATIONS

G. FINK STUDIO 2506 PONCE DE LEON CORAL GABLES, FL 33134

SECTION 04 72 00 HISTORIC CAST STONE RESTORATION

PART 1 – GENERAL

1.01 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions, apply to this section.

1.02 REFERENCES

A. United States Department of the Interior, National Park Service, “The Secretary of the Interior’s Standards for the Treatment of Historic Properties”, latest edition.

B. The American Institute for Conservation of Historic and Artistic Works (AIC) “Code of Ethics” and “Guidelines for Practice”, latest edition.

1.03 DESCRIPTION OF WORK

A. The Work of this Section includes all labor, materials, tools, equipment and services necessary for and reasonably incidental to complete the restoration of cast stone, including but not limited to the following:

1. Replication and replacement of missing or damaged historic ornament to match originals, including the roof weathervane finial and the gargoyle previously located on the east elevation. 2. Treatment of corroded embedded steel reinforcement in cast stone elements, including columns in east elevation tracery window. 3. Mortar injection grouting of previously treated and untreated cracks and microcracks where indicated. 4. Patching of cracks, small holes, and spalls 5. Repointing of mortar joints

B. Related Work Specified Elsewhere:

1. Section 05 70 00 – Historic Metal Restoration 2. Section 06 40 00 – Historic Wood Restoration 3. Section 09 01 25 – Historic Plaster Restoration 4. Section 09 91 00 – Historic Paint Restoration

04 72 00 - 1 1.04 QUALITY ASSURANCE

A. Restoration Specialist: Award cast stone restoration to a firm with a minimum of five (5) years of experience in the restoration of cast stone and the process and operations. Firm shall be regularly engaged in cast stone restoration and repair on historic buildings and shall demonstrate to Architect’s and Conservator’s satisfaction that it has successfully performed and completed at least five (5) projects similar in scope and type to required work involving facilities designated as Landmarks by local governmental authorities, listed on the National Register of Historic Places, or listed on a State Register of Historic Places.

1. Qualifications: Firm shall show qualifications and specialization in the following: a. Field survey and pre-construction documentation b. Mold making for decorative moldings and features c. Casting ornamental cast stone d. Installation of cast stone e. Rehabilitation of embedded steel in cast stone assemblies f. Surface repair of cast stone g. Injection of grouts and adhesives to repair cracks in cast stone h. Repointing existing cast stone

2. Foreman: Cast stone restoration shall be directly supervised by a full-time foreman, who must have a minimum of five (5) years of experience in the restoration and conservation of historic cast stone and the process and operations, and two (2) years with the present company. Foreman shall read and speak English fluently. Foreman shall be on site daily for duration of work of this Section. Same foreman shall remain on job throughout work unless his/her performance is deemed unacceptable. 3. Artisans: Cast stone restoration shall be carried out by a skilled artisan who is thoroughly experienced with materials and methods specified, has a minimum of three (3) years of experience with work on historic buildings similar to that required by this Section, and is familiar with project requirements. Contractor shall certify that all artisans employed for work of this Section fully understand project requirements. In acceptance or rejection of work of this Section, no allowance will be made for workers’ incompetence or lack of skill. Provide list of qualified artisans with bid. 4. Subcontractors: Subcontractors are subject to same requirements as Restoration Specialist. Subcontracting of any work included in this section, except for that accepted by Architect in writing prior to award of Contract, is specifically prohibited.

B. Laws, Codes, and Regulations: All work of this Section shall comply with requirements of all applicable federal, state, and local laws, codes, and regulations.

04 72 00 - 2 1.05 SUBMITTALS

A. Protection Plan: Submit a written description of the proposed protection plan, describing methods and materials for protection of surrounding materials, vegetation and site features that may be damaged by restoration operations. Provide a detailed description of the proposed materials and installation methods.

B. Hazard Assessment and General Safety Program: Submit a written plan detailing the potential hazards to personnel and the public that could occur during the course of work. Submit a safety plan detailing the specific actions; including training, procedures, protection, and signage, that will be performed to address and mitigate the hazards.

C. Product Data: Submit manufacturer's literature, product data, use and installation instructions and SDS for each of the products and materials proposed to perform the work of this section. Materials used in this work must be identical to those submitted and approved.

D. Repair Methodology: Prior to preparing repair mock-ups, submit a detailed written description of methods, methods, sequencing, materials and equipment proposed for use for restoration of cast stone. Detail each specific treatment step, protection, and sequencing with other work for each repair procedure. Include materials and methods to be used to control waste materials Contractor may propose products for testing in addition to those specified. Only submitted and approved products will be tested.

E. Provide letters of certification from the manufacturer stating that materials and chemical concentrations meet the requirements specified below.

F. Training Certifications: Provide certificates from manufacturers and trainer confirming that the specific personnel assigned to perform Jahn patching, and the use of any tools or supplies that require specific training for safe and/or proper use has been adequately trained.

G. Models: Restored and assembled fragments, or new sculptured models, should be submitted for approval prior to final molding and casting.

H. Qualifications: Individual resumes and proof of required experience in the repair and restoration of architectural cast stone.

1.06 MOCK-UPS

A. Cast Stone Repair: Prepare a sample of each types of cast stone repair using the specified and approved materials and methods selected by the Architect and Conservator. Adjust the color, finish, and installation of the repair as directed by the Architect. Approved samples panels, materials and procedures will become the

04 72 00 - 3 standard for review of the work of this Section. Approved sample panels may be incorporated into the work.

B. The contractor shall obtain written acceptance of the restoration methods, protective methods, materials, equipment, and mock-ups before proceeding with restoration. Before written approval is given, the contractor shall allow a minimum of seven calendar days after completion of mock-ups to permit study of the mock-ups.

C. Modify equipment, methods, and workmen and prepare additional samples until the quality of the work is acceptable to the Architect, Conservator, and Owner’s Representative. Additional samples shall be prepared at no additional cost, until the samples are approved. Approved samples shall stand as the Quality Control standard to which all subsequent work conforms

1.07 ENVIRONMENTAL REQUIREMENTS

A. Protect cast stone and mortar installations from premature drying from exposure to direct sun and wind by covering with tarps and damp burlap for a minimum of 24 hours after installation. B. Protect installations from direct rain exposure for a minimum of 24 hours after installation. C. Do not install masonry components when ambient temperature is below 40 degrees F.

D. All restoration operations shall be completed under natural daylight at a minimum of 100-foot candle evenly across the surface of the cast stone.

1.08 DELIVERY, STORAGE, AND HANDLING

A. Store and handle all products in strict compliance with manufacturer’s instructions and recommendations.

B. Store materials off the ground in a dry, clean location. Remove materials which are damaged or otherwise not suitable for use from the job site. Store materials at temperatures and humidity conditions required by the manufacturer. Store temperature sensitive materials in accordance with the manufacturer’s instructions.

C. Deliver materials to the site in the manufacturer's original and unopened containers and packaging, bearing labels as to the type of material, brand name and manufacturer's name. Delivered materials shall be identical to accepted products.

04 72 00 - 4 D. Store materials away from potential ignition sources and keep containers tightly closed when not dispensing. Keep containers in an upright position. Keep factory seal in place until used.

1.09 REGULATORY REQUIREMENTS

A. Comply with city and Federal regulations governing cleaning, chemical disposal, scaffolding, worker protection, and protection of adjacent site.

B. Dispose of runoff from repair operations in accordance with city and Federal regulations. Collect alkaline or acidic wastes that exceed the legal limits established by the City of Coral Gables for disposal in the city sewer system. Arrange for neutralization of such wastes by qualified personnel trained in this procedure or the wastes should be collected for off-site management in accordance with applicable Federal, state, and local laws and regulations. Test the pH levels of the runoff a minimum of once each hour during rinsing to assure compliance.

PART 2 – PRODUCTS

2.01 MATERIALS, GENERAL

A. Grade and Quality: Materials shall conform to requirements of this Section and shall be new, free from defects, and of recent manufacture.

1. Where any manufacturer makes more than one grade of each material specified, use highest grade and quality of each material, whether or not material is mentioned by trade name in these specifications. 2. Where products specified by name and number are not available, furnish products equal to original specifications, as approved by Architect and Conservator, in writing, at no additional cost to Owner. 3. Alternate Restoration Materials and Methods (If Any): If Restoration Specialist proposes alternate materials and methods to those specified for work of this Section, the Restoration Specialist shall provide detailed evidence of successful use on comparable projects and demonstrate effectiveness for use on this Project. Proposals for alternate materials and methods shall include testing, reports, and documentation of successful use on similar projects elsewhere and require approval from Architect and Conservator.

B. Ready-Mixed Products: Wherever a ready-mixed product is specified for use, containers shall bear labels giving exact mixture formula. Manufacturer shall guarantee formula, and product shall be subject to chemical analysis by laboratory

04 72 00 - 5 selected by Architect, in writing, at Contractor’s expense.

C. Manufacturer’s Instructions: Comply with material manufacturer’s instructions for use of products (including surface preparation, mixing, applying, drying, etc.). In case of conflict of requirements of this Section, the more stringent requirements shall govern.

2.02 ADHESIVE AND ANCHOR MATERIALS

A. Pin Anchors: Stainless steel, Type 304, size as specified by engineer.

1. Adhesive: Hilti HIT-HY 200 R. White or off white in color, or approved equal.

B. Depth of anchor holes shall be no more than 1/4 inch deeper than the length of the anchor.

C. The contractor may propose additional repair products or methodologies for testing on- site included with the proposal, but must submit all product literature, SDS, and manufacturers use instructions the same as for the specified products, and must prepare sample areas for each product or method proposed in the presence of the Architect and Conservator. Should any contractor proposed materials or methods be approved for use in the project, the contractor will perform the repairs using the approved materials or methods at no additional cost to the Owner.

2.03 CRACK REPAIR AND REPOINTING MORTAR

A. Color of the grout shall match the color of the cast stone. Color mix with mineral stable pigments as needed to match.

1. Edison Coatings Pump-X 53i for cracks with a thickness of 1 mm to as much as several inches, as supplied by Edison Coatings, 3 Northwest Drive, Plainville, CT 06062 Tel: 860-747-2220 2. Joint and Void Filling Grout for gaps of ¼” or greater shall be “VoidSpan PHLc” Grout as supplied by VoidSpan Technologies of Salem, MA Tel: 800- 966-8643. 3. Crack and Joint Filling Grout for gaps as small as 1/32” shall be “VoidSpan CG70” PHLc Grout as supplied by VoidSpan Technologies of Salem, MA Tel: 800-966-8643. 4. Natural cement and lime based mortar with a flow rate capable of low pressure injection of cracks and voids less than 1/16”. Color of the grout shall match the color of the cast stone. 5. Jahn Concrete and Precast Repair Mortar M90, Jahn Restoration Techniques and Research products available through Cathedral Stone Products, 7266 Park Circle Drive, Hanover, MD 21076.

04 72 00 - 6 6. Or approved equal

2.04 CAST STONE PATCHING MORTAR

A. Natural cement and lime based patching material specifically formulated and color matched for repair of the cast stone, including spalls and three dimensional losses.

1. Jahn Concrete and Precast Repair Mortar M90, Jahn Restoration Techniques and Research products, available through Cathedral Stone Products, 7266 Park Circle Drive, Hanover, MD 21076, or approved equal.

2.05 CAST STONE ORNAMENT REPLICATION

A. Mold Making Materials, flexible epoxy molding compound for molding replica from existing cast stone ornament, and gypsum casting plaster for creating supporting “mother molds”:

1. Silicone Putty GT-6568, manufactured by GT Products, Inc., 501 Industrial Blvd., Grapevine, TX 76051, 817-481-7113, or approved equal. 2. No. 1 Moulding Plaster, manufactured by United States Gypsum Company, 550 West Adams St., Chicago, IL 60661, or approved equal.

B. Modeling Materials, non-hardening, sulphur-free modeling clay for creating model replicas of ornament that is too damaged to be molded directly:

1. PRIMA Plastilina, as manufactured by Chavant, Inc., 5043 Industrial Road, Farmingdale, NJ 07727, 800-242-8268, or approved equal.

C. Replica Ornament Material, cement and lime based material specifically formulated and color matched for repair of the cast stone.

1. Jahn Concrete and Precast Repair Mortar M90, Jahn Restoration Techniques and Research products, available through Cathedral Stone Products, 7266 Park Circle Drive, Hanover, MD 21076, or approved equal. 2. Type “N” concrete consisting of 1 part Type II Portland cement, 1 part Type “S” hydrated lime, 6 parts clean angular sand, mineral pigments as needed to match original cast stone paste. 3. Chopped glass fiber and fiberglass rods for reinforcing new castings.

2.06 COATING FOR EMBEDDED METAL REINFORCING

A. Corrosion inhibiting, epoxy protective coating for embedded ferrous metal reinforcing in cast stone units:

04 72 00 - 7

1. Series 135 Chembuild, as manufactured by Tnemec Company, 6800 Corporate Drive, Kansas City, MO 64120-1372, 800-535-5053. 2. Armatec -110 as manufactured by Sika Corporation, 201 Polito Avenue, Lyndhurst, NJ 07071, 800-933-7452. 3. Approved equal.

2.07 MIGRATING CORROSION INHIBITOR

A. Migrating corrosion inhibitor / penetrating water repellant for the protection of exposed cast stone:

1. Sure Klean Weather Seal H40 Masonry Strengthening Water Repellent, as manufactured by PROSOCO, 3741 Greenway Cir., Lawrence, KS 66046, 800- 255-4255, or approved equal.

PART 3 – EXECUTION

3.01 DOCUMENTATION

A. Thoroughly and carefully inspect all areas where work is to be performed and identify conditions or defects which would result in the inability to perform the work as required or would result in latent defects in the work.

B. Bring conditions that are problematic to the attention of the Architect. Do not proceed with the work until conditions are corrected.

C. Take all precautions and protective measures necessary to protect the surrounding materials and site from damage.

3.02 PREPARATION

A. Take all necessary precautions and protective measures to protect all surrounding materials and vegetation on the site not being cleaned from coming in contact with the restoration materials and run-off.

B. The contractor will be responsible for repair and/or replacement of any and all materials damaged by the repair operations, the failure to install and maintain protection, and the installation or removal of the protection.

3.03 PROTECTION

04 72 00 - 8 A. Protect persons, adjacent surfaces, and equipment from injury or damage resulting from the stone restoration. Take great care not to damage adjacent surfaces. Any damage will be corrected at no cost to the owner.

1. The Contractor shall provide, erect, and maintain barricades, danger signals, and warning signs as deemed appropriate by the Construction Manager while working on site.

B. Follow all protection and precautionary measures noted by the manufacturer in the Product Literature.

3.04 MORTAR PATCHING

A. For cast stone with small holes and spalls which have the potential to collect water, and for filling of old anchor holes, the intent is to repair the cast stone by patching with mortar. Areas to be patched include previously repaired and previously unrepaired anchor holes and spalls. Total patch volume must not exceed 2 cubic inches.

B. Remove old patches by saw cutting and hand chiseling. Cut the edges of repair area square to the face of the stone and to a minimum depth of 1/2 inch. Leave the bonding surface of the cast stone rough to provide key for the mortar.

C. Clean the cast stone of all loose debris and dust by water washing.

D. Fill the patch area with Jahn M90 repair mortar which matches the color of the cast stone. Pack the area solidly with mortar leaving no voids. Do not allow the mortar to extend over the edges of the face of the stone. Do not feather the edges of the patch.

E. Level the surface of the mortar with the surface of the surrounding stone. Stipple the surface of the mortar to match the surface texture of the adjacent stone.

F. Keep patch damp until cured. Patches which have edge separation or hairline cracking shall be removed and replaced at the direction of the Architect.

3.05 CRACK REPAIR – CRACKS LARGER THAN 1/16TH INCH WIDE

A. Remove old mortar, sealants and fillers from within the crack and from the surface of the cast stone by hand. Clean and roughen the cast stone to form key for new patch.

B. Flush cracks with a solution of 50% ethyl alcohol in water. Inject cracks wet on wet after flushing. Fill previously repaired cracks with injection mortar using hypodermic needles. Continue to inject as grout draws into cracks until crack can accept no more grout. Allow grout to stiffen proud of the finished surface and then wipe back excess

04 72 00 - 9 flush with the surface of the adjacent cast stone using clean wet sponges. Stipple the surface of the mortar lightly to match the surface texture of the surrounding material.

C. Keep mortar damp until cured. Mortar which has edge separation or hairline cracking shall be removed and replaced at the direction of the Architect.

3.06 CRACK REPAIR – MIRCO-CRACKING

A. Remove debris from within the crack with stiff brushes, hand tools and low-pressure water. Do not widen the joint or remove any cast stone materials that is not loose.

B. Install adhesive/masking tape protection along both sides of the crack to prevent the grout from staining or adhering to the adjacent stone.

C. Thoroughly dampen the crack with 50% alcohol water solution.

D. Scrub crack grouting mortar into the crack with a soft, long bristle brush or sponge or inject with hand pressure pump. Scrub into the crack by brushing or wiping at 45- degree angle to the direction of the crack, similar to grouting ceramic tile. Bring grout level with the face of the stone, but do not allow to feather over the edges of the crack. Fill cracks to a minimum depth equal to the width of the crack, but no less than 1/4".

E. Remove masking tape and clean residual surface grout with clear water and soft brushes after grout has cured or as determined optimum during sample preparation.

F. Resulting grout repair should be level with the surface of the stone, match the color of the stone and approximate the surface texture of the stone.

G. Keep grout damp until cured. Grout which has edge separation or hairline cracking shall be removed and replaced.

3.07 CRACKS RESUTLING FROM CORROSION JACKING

A. Widen crack to expose corroding reinforcing metal. Sawcut patch perimeters in straight uniform cuts. Shoulder of saw cuts should be at least 90 degrees to facilitate keying of cast stone patch.

B. Exposed corroded steel shall be cleaned by sandblasting to SSPC-SP3. The underside of steel shall stand free of cast stone by 3/4 inch and be wire brushed. Contractor shall notify Architect of any steel members which appear to have a significant loss in cross-section due to corrosion. All exposed steel in areas to be patched shall be painted with two coats of epoxy protective coating.

04 72 00 - 10 C. Contractor shall install lengths of rebars to match existing where existing reinforcing has lost more than 25% of its original section. Contractor shall fasten bars, if necessary, with wire and ¼ inch expansion bolts. Contractor shall provide 12 inch minimum lap for #4 bars and lap other sizes as required by code.

D. Install mortar patch according to procedures described in 3.04.

3.08 REPOINTING OF CAST STONE MASONRY JOINTS

A. Joint Preparation:

1. Rake joints to a depth of 2 times the joint width, but in all cases remove deteriorated and loose material. All sealant and non-cementitious material used to seal or fill joints shall be completely removed. 2. Take special precautions to ensure that masonry faces and arises are not damaged and joints are not widened during the process of mortar raking or sealant removal. Contractor shall be responsible for protection of all adjacent joint surfaces. Work shall not proceed if Contractor’s methods are damaging existing surfaces. 3. Only hand tools, in conjunction with a pneumatic tool designed for mortar removal (such as the Barre Pneumatic Carving Tool, as manufactured by Trow and Holden Company, Barre, VT) shall be used to remove mortar from mortar joints. 4. Power grinders, power saws or other power abrasive tools shall be not used to remove mortar, except by approval of Architect. 5. Remove all mortar and sealant from the surface of the masonry within the joint so that new mortar bonds directly to the masonry. Provide joints with square backs. Brush, vacuum, or flush joints to remove dirt and loose debris. 6. Contractor shall repair all masonry units damaged from raking of joints at no extra cost to the Owner.

B. Mortar Installation: Joint profile shall match existing, and mortar shall match existing in color and aggregate size:

1. Wet masonry 24 hours prior to pointing and again immediately before pointing. Rinse masonry joint surfaces with water to remove dust and mortar particles. Time application of rinsing so that, at time of pointing, excess water has evaporated or run off, and joint surfaces are damp but free of standing water. 2. Apply first layer of pointing mortar to area where existing mortar has been removed to depths greater than surrounding areas. Apply in layers not greater than 3/8” until a uniform depth is formed. Compact each layer thoroughly and allow to become thumb print hard before applying next layer. 3. After joints have been filled to a uniform depth, place remaining pointing mortar in 3 layers with each of first and second layers filling approximately 2/5

04 72 00 - 11 of joint depth and third layer the remaining 1/5. Fully compact each layer and allow to become thumb print hard before applying next layer. Where existing units have rounded edges, recess final layer slightly from face to avoid leaving a joint that would be wider visually than the original appearance. Take care not to spread mortar over edges onto exposed masonry surfaces, or to feather- edge mortar. 4. When mortar is thumb print hard, tool joints to match original appearance of joints. Remove excess mortar from edge of joint by brushing. 5. Cure mortar by maintaining in damp condition for not less than 72 hours or until surface is cured. Mortar which has edge separation or hairline cracking shall be removed and replaced. 6. Allow mortar to harden not less than 14 days before beginning final cleaning.

3.09 CAST STONE REPLICATION

A. Gargoyle Ornament: Prior to replication, fragments of the existing gargoyle ornament, currently in storage with the City of Coral Gables, will need to be re-assembled. Restoration Specialist shall use adhesive and pins as necessary to reconstruct gargoyle from existing fragments. Gaps in the sculptural form shall be filled by the Restoration Specialist to replicate as closely as possible the original shape and dimensions of the ornament.

B. Missing ornament elsewhere on the building shall be cast from existing, identical ornament after removal of paint and repair as needed. C. Ornament that is too damaged to be replicated by casting, such as the weathervane finial, shall be replicated by creating a model in non-hardening clay. The model shall be identical in size, shape, profile, and texture to the original. The replica ornament can then be cast from the model using the procedures outlined below.

1. The clay model shall be sculpted by hand, using measuring instruments and calipers as needed to create an exact replica of the ornament in clay. 2. The Restoration Specialist shall not proceed with casting the replica ornament until the model has been approved by the Architect and Conservator.

D. Lightly coat ornament with mold release to facilitate removal from the mold. Press epoxy silicone putty against original ornament, ensuring tight contact at all surfaces including crevices and recesses in three dimensional ornament. Provide keys in silicone to engage plaster mother mold and retain correct form.

E. Install gypsum molding plaster around molding putty after it has cured, securing with wires, straps, screws, or other fasteners as necessary to form a “mother mold” preventing deformation of the putty mold.

04 72 00 - 12 F. After the mold sets and has adequately hardened, remove original ornament from mold assembly.

G. Place casting mortar into mold, starting with a slurry coat and using several lifts as necessary, and firmly pressing material of first lift into crevices and recesses. Embed fiberglass mat and reinforcing rods, leaving rod(s) extending a minimum of 6” out of back of casting to be used to mount elements as needed. Fill the mold proud of the surface, scraping back excess material after initial set according to the manufacturer’s instructions.

H. After the replica has cured, turn it out of the mold. Correct defects as needed.

I. Install replica ornament in original location, using anchors set into ornament and building as necessary.

3.10 PROTECTIVE COATING AT EXPOSED CAST STONE

A. Apply protective coating of migrating corrosion inhibitor / water repellent to all surfaces of exposed, bare cast stone.

B. Apply coating of water repellent on surfaces to be treated using or brush to the point of saturation. Apply coating in dual passes of uniform, overlapping strokes. Remove excess material; do not allow material to puddle beyond saturation. Comply with manufacturer's written instructions for application procedure unless otherwise indicated.

C. Apply a second saturation coating, repeating first application. Comply with manufacturer's written instructions for limitations on drying time between coats and after rainstorm wetting of surfaces between coats. Consult manufacturer's technical representative if written instructions are not applicable to Project conditions.

D. Immediately clean water repellent from adjoining surfaces and surfaces soiled or damaged by water-repellent application as work progresses. Correct damage to work of other trades caused by water-repellent application, as approved by Architect. Comply with manufacturer’s written cleaning instructions.

E. Allow protective coating to cure 28 days before applying paint or other coatings.

3.11 CLEANING AND PROTECTION

A. Protect areas below work areas from mortar and adhesive droppings.

04 72 00 - 13 B. Remove excess adhesive and mortar from the surface of cast stone immediately using non-metallic scrapers, fiber bristle brushes, and clean rags as necessary. Adhesive MUST be removed before cure occurs.

C. Remove mortar droppings from cast stone at the end of each day.

D. Remove all protective coverings and coatings and remove residue left by same.

E. Clean adjacent and adjoining surfaces of marks arising out of execution of work of this Section.

F. Remove dirt, debris and rubbish from the site daily.

END OF SECTION

04 72 00 - 14 SECTION 05 70 00 HISTORIC METAL RESTORATION

PART 1 – GENERAL

1.01 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions, apply to this section.

1.02 GENERAL CONDITIONS

A. All work shall be performed as specified in the general and special conditions.

1.03 REFERENCES

A. United States Department of the Interior, National Park Service, “The Secretary of the Interior’s Standards for the Treatment of Historic Properties”, latest edition.

B. The American Institute for Conservation (AIC) “Code of Ethics” and “Guidelines for Practice”, latest edition.

1.04 DESCRIPTION OF WORK

A. The work in this section includes, but is not limited to the following:

1. The metal restoration is to include all of the historic exterior wrought iron roof eave scroll brackets, balcony structure with supporting brackets, garden gate brace and straps, and rooftop weathervane.

2. Interior historic wrought iron, such as door and window hardware, is also included.

B. Related Work Specified Elsewhere:

1. Section 04 72 00 – Historic Cast Stone Restoration 2. Section 06 40 00 – Historic Wood Restoration 3. Section 09 91 00 – Historic Paint Restoration 4. Section 09 01 25 – Historic Plaster Restoration

1.05 QUALITY ASSURANCE

05 70 00 - 1 A. Work must be performed by a firm specializing in metal restoration, having a significant history of successful experience in comparable metal cleaning and coating projects, and employing personnel skilled in processes and operations indicated. References from three similar projects must be submitted to the Architect.

B. Work in this section shall also require oversight by a qualified independent architectural conservation professional.

C. Required cleaning and coating samples will, once approved, serve as standards to work of the section.

1.06 SUMMARY

A. The Contractor shall provide all labor, materials, equipment, tools, and services required to remove, restore, and reinstall metal artifacts, as indicated in the drawings and herein specified and as required by the existing conditions for proper performance and completion, and in accordance with the requirements of the Contract Documents. All metal artifacts shall be photographed prior to removal and after the reinstallation.

B. Removal of all coatings from metal artifacts shall be done using mechanical cleaning in accordance with SSPC-SP6/NACE 3- commercial blast cleaning supplemented with SSPC-SP1 solvent cleaning to remove all chlorides, oils, debris, and deleterious material. Surfaces shall be prepared using commercial blast cleaning methods supplemented with solvent cleaning to remove corrosion and loose or failing paint (feather edges of sound, existing paint back to a firm edge). Following abrasion, all surfaces shall be thoroughly cleaned of all debris and residue by a thorough vacuum cleaning or blow-down with clean, dry compressed air.

C. Coating of all exterior cleaned and prepared surfaces, shall be with a three-coat system, zinc rich primer or zinc metallizing spray, epoxy barrier coat, and a aliphatic urethane topcoat.

1.07 SUBMITTALS

A. Work Plan: The Contractor will submit to the Architect all methods for protecting surrounding surfaces and other workers during the removal and reinstallation process. All materials, methods, and equipment to be used will be described in detail. Receive approval from Architect and Conservator prior to commencing work.

B. Product Data: Submit manufacturer’s product data, installation instruction, use limitations, and recommendations for each material used. Receive approval from Architect and Conservator prior to commencing work.

05 70 00 - 2 C. Cleaning Mock-ups: Provide mock-ups measuring two (2) feet by two (2) feet, that are representative of the cleaning effect of cleaning materials and methods. Areas selected for cleaning test panels shall be representative of general conditions. The results of all cleaning tests are to be submitted to the Architect and Conservator, and and shall include all chemical formulations, dilutions, and application methods.

1. Execution and acceptance of cleaning samples will be under the guidance of the Architect, Conservator, and Owner’s Representative. Repeat cleaning tests as required until approval of materials and methods are obtained in writing. Adjust methods and/or materials employed at the request of the Architect, Conservator, and Owner’s Representative. Do not proceed with cleaning until written approval has been given.

D. Shop Drawings: Include plans, elevations, and sections showing locations and extent of repair work, with enlarged details of replacement parts indicating materials, profiles, methods of attachment, accessory items, and finishes.

E. Three (3) draw-downs of the custom tinted topcoat confirming its color matches the existing and recommended color, as selected by the Architect.

F. A quart sample of each coating product from the actual production batches must be submitted to the Architect for verification of the physical properties of VOC, weight per gallon, volume solids, and color.

1.08 DELIVERY, STORAGE, AND HANDLING

A. Store and handle in strict compliance with manufacturer’s instructions and recommendations.

PART 2 – PRODUCTS

2.01 CLEANING MATERIALS AND EQUIPMENT

A. SSPC-SP6/NACE3 Commercial Blast Cleaning products:

1. Media: Garnet or other abrasive including clean, washed sand without salt contamination.

B. SSPC-SP1 Solvent Cleaning products:

1. Lacquer thinner 2. Denatured alcohol

05 70 00 - 3 2.02 REPLACEMENT MATERIALS FOR IRON BALCONY

A. Except as otherwise shown on the approved Shop Drawings, use materials of size, thickness, and type required to produce reasonable strength and durability in the work of this Section.

B. Match existing components, including fasteners, in size, profile, and shape.

C. Fabricate with accurate angles and surfaces which are true to the required lines and levels, grinding exposed welds smooth and flush, forming exposed connections with hairline joints, and using concealed fasteners wherever possible.

D. All sections of metal artifacts are to be shop primed before shipment to the job site.

2.03 ANCHORING FOR IRON BALCONY

A. Mortar for Setting Iron: Use the following proportions (Type-S) as the basis for achieving an acceptable mix:

1. Cement: 2 parts by volume, Type II Portland. 2. Lime: 1 part by volume. 3. Sand: 8-9 parts by volume. 4. Dry pigment: If needed, add small amount to dry mortar mix in such proportion as determined to achieve the desired color match, not to exceed 10% weight of binder. Mix thoroughly to disperse pigment prior to addition of water. 5. Water: As required to achieve a workable mix.

B. Lead for Setting Iron: In lieu of mortar, molten lead may be used in the setting of iron elements, in accordance with accepted industry standards and practice.

C. Bolts for additional anchoring to hole bottoms shall be stainless steel, anchor bolt system, as approved by the Architect/Engineer, based on site conditions.

2.04 EXTERIOR COATING MATERIALS AND EQUIPMENT

A. The coating system for all exposed exterior ferrous metal shall incorporate a three-coat system consisting of a zinc-rich primer or zinc metallizing spray, an epoxy barrier coat and an aliphatic urethane topcoat.

B. All coating products and accessories, such as thinner and accelerators, furnished for this project shall be manufactured by the same manufacturer and shall be compatible with one another.

05 70 00 - 4 C. The manufacturer must certify the protective coatings can be applied in relative humidity as high as 99%, in temperature as low as 20°F, and that there is no restriction on the dew point temperature differential if the surface is visibly dry and free from condensate. The surface must be verified to be free of any frozen water products by an approved third-party inspector when application is below 35°F. The use of a 20X- power magnifier is recommended.

D. All paint shall be single-component and prepared at the factory ready for application. The addition of thinner or other material to the paint after the paint has been shipped shall not be permitted, except as recommended by the manufacturer and by permission of the Architect and Conservator. Contractor shall furnish paint manufacturer’s certification that the paint complies with paint system requirements specified.

E. Tinting - All tinting materials required shall be added to the paint at the time of paint manufacture. Field tinting shall not be allowed without approval.

F. All containers shall be labeled showing the exact title of the paint, the manufacturer's name, date of manufacture, the manufacturer's batch number, and the specification number and the lot number if appropriate. Materials shall be packaged in new approved containers. Do not store materials on site.

G. Precautions concerning the handling and storage of paint shall be shown on the label of paint and solvent containers.

2.05 EXTERIOR COATING PHYSICAL PROPERTIES

A. PRIMER: Generic Type: Zinc-rich, aromatic Urethane Volume Solids: 63% mixed Pigment Type: 90-97 Reddish-gray Dry film thickness: 2.5 – 3.5 mils per coat VOC: 2.68 lb./gal. Weight Per Gallon: 23.94 lb./gal.

B. EPOXY BARRIER COAT: Generic Type: Polyamide Epoxy Volume Solids: 56% Color: Refer to Tnemec Color Guide Dry film thickness: 2-6 mils DFT per coat VOC: 3.02 lb/gal Weight Per Gallon: 12.5 lb./gal.

C. FULL TOPCOAT:

05 70 00 - 5 Generic Type: 2 part Acrylic polyurethane Volume Solids: Minimum 60% Pigment Type: Minimum 2.0 lb/gal MIO depending on color Finish/Sheen: Matte Color: As indicated on drawings Dry Film Thickness: 3-6 mils DFT per coat .

2.06 PRE-APPROVED PRODUCTS

A. Full Primer: Zinc Clad II plus Full Intermediate: Macropoxy 646 Full Topcoat: Acrolon 218 HS Polyurethane

Sherwin-Williams https://protective.sherwin-williams.com/contact/ Phone: 1-800-524-5979

2.07 APPLICATION REQUIREMENTS A. Dry Film Thickness Schedule:

1. Full Primer: 3-5 mils DFT 2. Intermediate Coat: 5-10 mils DFT 3. Top Coat: 3-6 mils DFT

B. All coating required under this contract, shall be performed in conformance with the best practices of the trade, with the recommendations of the coating manufacturer, and with applicable portions of the Steel Painting Council Specification SSPC-PA 1; if those specifications are not in conflict with these standard recommendations.

C. All surfaces cleaned to bare metal shall be coated with the specified prime coat the same working day. Any cleaned surface that rusts before the application of the prime coat shall be re-cleaned prior to coating.

D. Film thickness measurements shall be made frequently by the applicator during wet film application, using an approved wet film thickness gauge, in conjunction with an approved magnetic or digital dry film gauge, such as an Elcometer 211 or Positest digital gauge, after the application of each subsequent coat. The applicator shall keep a log with readings and locations to be submitted at the end of work. One hundred percent of all thickness measurements shall be within the specified minimum dry film thickness. Where thickness measurements fall below the specified minimum, additional applications of paint shall be made as necessary to meet the thickness required, at no additional cost to project owner.

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E. Sufficient time shall elapse between successive coats to permit them to cure properly for recoating. Consult specific product data sheets for proper cure times.

F. Apply coatings via spray, brush and/or roll methods, using approved equipment that is standard to the industry, and according to all application information available from the manufacturer, its representatives, or these recommendations. Follow equipment cleaning procedures for such equipment as recommended by the manufacturer.

G. The application of a primer stripe coat is required and shall be brush-applied, stippled by hand, into all edges, corners, joints, nuts, bolts, bolt threads, rivet heads, weld seams, fayed and irregular areas. An additional brush application of a penetrating nature into tight metal to metal areas should be applied as well.

PART 3 – EXECUTION

3.1 DOCUMENTATION

A. Thoroughly and carefully inspect all artifacts under which work is to be installed and identify defects and deficiencies. Bring conditions that are problematic to the attention of the Architect.

B. Document original locations and orientation of each artifact. Artifacts are to be reinstalled in original location and orientation after treatment is complete.

3.2 GENERAL

A. Prior to cleaning, determine degree of cleaning to be carried out and review areas requiring additional treatment with Architect. Approved cleaning test panels will serve as the standard.

B. Prior to coating, receive approval of coating system from Architect. Approved draw downs will serve as the standard for coating.

3.3 PROTECTION

A. Protect persons, adjacent surfaces, and equipment from injury or damage resulting from the removal and reinstallation of metal artifacts. Take great care not to damage adjacent surfaces. Any damage will be corrected at no cost to the Owner.

1. The Contractor shall provide, erect, and maintain barricades, danger signals, and warning signs as deemed appropriate by the Architect while working on site.

05 70 00 - 7 B. Follow all protection and precautionary measures noted by the manufacturer in the Product Literature.

3.4 PROCEDURES

A. The Contractor shall perform all work as directed below and to the satisfaction of the Architect:

1. Schedule work as per the direction of the General Contractor and Owner and to minimize impact on the building, the public, and other work at the site. Store and stage materials only in locations as directed. Perform work only during work periods as directed. 2. Protection –Exercise extreme care while working on site not to damage surrounding surfaces during removal and re-installation. 3. Remove, protect, and transport all exterior artifacts offsite for treatment. 4. Treat interior artifacts in situ.

a. Perform repairs as needed using matching alloy steel with the same dimensions and profiles as the original. Attachments shall be hot riveted or full penetration welds. Finish repairs and attachments to match original alignment, profile and orientation. Prepare new surfaces to match historic prior to coating. b. Remove failed coatings by mechanical cleaning in accordance with SSPC- SP2 Hand Tool Cleaning or SSPC-SP3 Power Tool Cleaning supplemented with SSPC-SP1 Solvent Cleaning to remove all chlorides, oils, debris, and deleterious material. c. All bare metal surfaces shall be primed on the same day within 8 hours of completion of cleaning to avoid flash rusting. The stripe coating, as required, shall be applied within 1 to 3 days after the full primer coat. Follow manufacturer’s specifications for application and cure time between primer, intermediate, and top coats.

5. Remove failed coatings and corrosion by abrasion in accordance with SSPC- SP6/NACE3 Commercial Blast Cleaning supplemented with SSPC-SP1 Solvent Cleaning. Work shall be performed by methods which will remove all dirt, coatings, and corrosion. SSPC-SP1 Solvent Cleaning methods shall be employed as necessary to augment mechanical cleaning and to ensure that chlorides, oils, etc., are removed prior to coating.

6. The surface finish shall be free of all salts, oils, greases, dirt, and foreign matter. All rust, rust scale, and loose mill scale shall be completely removed, except that the extremely tight rust scale may remain in pit bottoms, inert carbon shadows and rust stain may remain. All coatings shall be removed. All

05 70 00 - 8 surfaces shall show an evenly abraded anchor pattern sufficient to provide good adhesion for over-coating.

7. Before coating, test surface to determine if the area to be coated is free of contaminants and desired level of cleanliness has been achieved. All metal surfaces shall be free of all cleaning residue. Cleaning shall be approved by the Architect and Conservator prior to coating.

8. Particular attention shall be given to all edges, corners, joints, weld seams, fayed and irregular areas.

9. All bare metal surfaces shall be primed on the same day as cleaning, and the stripe coating, as required, shall be applied within 1 to 3 days after the full primer coat. Follow manufacturer’s specifications for application and cure time between primer, intermediate, and top coats.

10. Return artifacts to the site and reinstall in original location and orientation. Install with new stainless-steel bolts.

11. Re-touch any damages with the same batch mix as used during top-coating. Remove all protection materials and debris and dispose off-site. Broom clean site to return it to its pre-existing conditions and to the satisfaction of the Architect.

END OF SECTION

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SECTION 06 40 00 HISTORIC WOOD RESTORATION

PART 1 – GENERAL

1.01 GENERAL REQUIREMENTS

A. Work of this section, as shown or specified, shall be in accordance with the requirements of the Contract Documents.

1.02 DESCRIPTION OF WORK

A. General: Provide all supervision, labor, materials, equipment and services required to complete restoration of historic wood elements and artifacts, as indicated on the drawings, as specified in this section, and as may be required by conditions and authorities.

B. Intent/Objective: The objective of architectural wood restoration is to return wood to a fully intact and structurally sound condition through repair, replacement, and refinishing.

C. Work Included: Without restricting the totality of the work, architectural woodwork restoration shall consist of the following:

1. General: Restored woodwork shall include all historic exterior wood components in areas selected to remain in the existing structure of the George Fink Studio, including pecky cypress eave boards; exterior doors including the garden gate and French doors at the balcony; and remaining original windows, including frames and screens, at the east elevation and 2nd floor vestibule. 2. Restoration of wood casements and transoms containing leaded glass panes shall be performed in conjunction with the restoration of the leaded glass. 3. Strip deteriorated finishes from all painted wood and refinish with paint as indicated on drawings, and in accordance with Section 09 91 00, Historic Paint Restoration. 4. Protect all adjacent materials during repair, stripping, and refinishing work. 5. Remove post-historic nails and fill resulting holes with exterior grade epoxy wood filler. 6. Close all open joints using finish nails and wood adhesive. 7. Repair defects in woodwork including gouges, splits, cracks, checks, and splits using exterior grade epoxy wood consolidant and filler system. 8. Cut out deteriorated or damaged section of wood and install new wood dutchman to match original in every respect. 9. Remove damaged wood elements that are beyond repair and replace with new wood to match original in every respect. 10. Replace missing wood elements to match original in every respect.

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D. Definitions:

1. "Restoration" or "Restored" shall mean the treatment of new and existing architectural components, to recreate or rehabilitate the original appearance, including the molding profiles, dimensions, and finishes, except where noted on the drawings and specifications. 2. "Replication" or "Replicated" shall mean the installation of new wood by means of an approved or specified treatment to duplicate an existing, original (or otherwise desired) finish, including unique wood species characteristics, such as lenticular voids in pecky cypress. 3. "Conservator" shall mean a person professionally trained in conservation and regularly employed exclusively in the field of wood conservation as defined in the code of ethics of the American Institute of Conservation of Historic and Artistic Works (AIC). The conservator shall be a member in good standing of the AIC. 4. "Dutchman" refers to any new or salvaged wood fitted into an existing wood element. 5. "Mock–ups" for architectural woodwork restoration to be established by treatments applied to existing wood surfaces. The mock–ups shall serve as standards for the restoration of all interior architectural woodwork.

E. Related Work of Other Sections: The following related work is to be performed by others under the designated sections:

1. Section 04 72 00 – Historic Cast Stone Restoration 2. Section 05 70 00 – Historic Metal Restoration 3. Section 09 01 25 – Historic Plaster Restoration 4. Section 09 91 00 – Historic Paint Restoration

1.03 QUALITY ASSURANCE

A. "Restoration Specialist" The contractor or subcontractor who shall perform the work specified in this section must be regularly engaged in the restoration of architectural woodwork. The Contractor must demonstrate that they have successfully performed and completed within the last five (5) consecutive years and in a timely fashion, at least (3) projects similar in scope and type to the required work, involving facilities designated as local historic landmarks or listed on the National Register of Historic Places. For the architectural woodwork restoration, use craftspeople who are completely familiar with the requirements for this work.

B. The Contractor shall maintain a steady work crew consisting of skilled craftspeople who are experienced with the materials and methods specified and familiar with the design requirements, and a full time foreman who has acceptable experience in architectural woodwork restoration. The Contractor shall confirm that all workmen

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under his direction fully understand the requirements of the job. The Contractor shall allow for inspection of all work areas by the Architect.

C. The foreman shall be present full–time on site whenever work is being performed.

D. All work shall comply with the United States Secretary of the Interior Standards for the Treatment of Historic Properties.

E. Field Supervised Construction: Contractor shall notify Architect before beginning work. Obtain the Architect's approval of the reinstallation of dismantled wood elements, before proceeding with the work.

F. Bidders must visit the site beforehand and make themselves thoroughly familiar with specific conditions relating to this Section.

G. Materials shall conform to the latest edition of reference specifications applicable and specified herein and to applicable codes and requirements of local authorities having jurisdiction.

1. Materials shall conform to governing regulations regarding the content of volatile organic compounds (VOC). 2. The Contractor shall confirm that the materials specified perform to the satisfaction of the Architect, and do not produce off–gassing or otherwise have a deleterious effect during or after application on either the surface being treated, adjacent surfaces. 3. The Contractor shall comply with relevant ASTM Standards for all materials.

H. Source of Materials: Obtain materials for architectural woodwork restoration from a single source for each type of material required to ensure a match in quality, color and texture.

I. Coordinate work with plaster restoration, paint restoration, cast stone restoration, and metalwork restoration, and cutting and patching adjacent to new and existing HVAC and Electrical and other related scope of work.

J. Replace all broken, lost and damaged adjacent material resulting from repair, removal, cleaning, and finishing of all woodwork under this section at no expense to the Owner.

K. All Subcontractors are bound by the same requirements as the Contractor. Subcontractors shall not begin work unless approved by the Contractor.

L. In acceptance or rejection of this work, no account shall be taken for incompetence on the part of the workmen.

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M. Inspect all surfaces to be restored before beginning this work and correct any defects in such work which will affect the proper execution and stability of this work.

1.04 RESTORED ARCHITECTURAL WOODWORK QUALITY STANDARDS

A. The Quality Standards, latest edition of the Architectural Woodwork Institute (AWI), shall apply to the work of this section. Except as otherwise indicated, provide "Premium Grade" work as defined in the above–referenced standard for all architectural woodwork.

B. Wood Moisture Content: Provide kiln–dried (KD) lumber with an average content range of 6–1 1 %.

C. New wood shall match original existing species and grade, or premium grade whichever is more stringent. New inserts in existing wood shall be selected to match grain, color, pattern, and wood species characteristics including lenticular voids in pecky cypress. Pecky cypress may be salvaged from existing, post-historic boards at the interior of the building, or sourced new and modified by the contractor to match the void pattern of adjacent historic material.

D. Wood for Painted Finish: New wood shall comply with quality standards for selection of species, grade and cut.

E. Hardware: Hardware shall be restored in accordance with Section 05 70 00 Historic Metal Restoration.

F. Joinery or ornamental elements shall be fabricated to match existing, or AWI Premium Grade, whichever is more stringent.

G. All millwork exposed to the weather or in contact with masonry or other dissimilar materials shall be given wood preservative treatment as specified herein.

1.05 SUBMITTALS

A. Qualification Data: Submit qualification data, specified in "Quality Assurance" Article, that demonstrate firm's and individual's capabilities and experience. Include a list of at least three (3) completed projects in buildings designated as local landmarks or listed on the National Register of Historic Places. List project names, addresses, names of Architect and Owner, and phone number of contact person for each project. Submit this information with the bid.

B. Product Literature: Submit three (3) copies of manufacturer's latest published technical data including, installation instructions and general recommendations for each specified material and fabricated product. Include test reports and certificates

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substantiating the product's compliance with the specified requirements. Obtain approval before materials are delivered to the site.

C. Methods of Protection: Prior to commencing the restoration, alteration and installation operations, the Contractor shall submit to the Architect a written description of proposed materials and methods of protection for preventing damage to any adjacent material or finish during the restoration, alteration and installation work of the architectural woodwork, or to any material not being cleaned, and any adjacent material to remain. Protection shall be installed at all locations where work is in progress so as to protect the woodwork from any damage by other Trades.

D. Shop Drawings

1. Submit complete shop drawings of all new architectural woodwork to the Architect. The Drawings shall include dimensioned elevations and sections as well as full size details of all typical members and joinery, types of materials, and shall show hardware and methods of securing and fastening members to adjacent work. 2. Shop drawings shall clearly indicate any deviation from designs or details of the existing woodwork. 3. All dimensional information contained in the drawings, whether numerical, tabular, or graphic is provided only for the information of the Contractor, and is not guaranteed. Contractor shall verify all measurements in the field. 4. Samples: Submit three (3) samples of each type of new wood for repairs with and without restored finish. Provide full range of color to be found in final finished product.

F. Prepare Mock–ups for approval as specified in Section 1.06 "Mock–ups."

G. Samples and mockups submitted which are approved by the Architect and Conservator shall remain as a record at the site until the Work is completed and approved by the Architect and Conservator.

H. Program of Work: submit a written program for each phase of this Contract, include protection of surrounding materials.

1. Materials list: Before any materials are delivered to the job site, submit to the Architect a complete list of all materials proposed to be furnished and installed, including samples of all accessories, and copies of the manufacturer's current recommendations as to methods and installation. 2. If alternate methods and materials to those specified are proposed for any phase of the restoration work, provide a written description. Provide evidence of successful use on comparable projects and demonstrate its effectiveness for use on this project.

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1.06 MOCK–UPS

A. Prepare one mockup, at designated area, for each repair and replication type indicated in this Section unless otherwise indicated.

B. New wood inserts (Dutchmen): Subsequent to Architect’s approval of all shop drawings and samples, the Contractor shall prepare one sample repair using materials and methods specified for one (1) dutchman repair. Following any revisions requested by the Architect, the approved sample shall form a quality standard for all further new work.

C. Consolidation (epoxy repair): Prepare one (1) sample of an epoxy consolidation repair, including filling of minor holes and depressions in wood surfaces. Following any revisions requested by the Architect, the approved repaired area shall form a quality standard for all further repair work.

D. Mock–ups shall be approved by the Architect and Conservator before the work may proceed. Provide additional sample panels, as may be required by the Architect. The approved panels shall not be removed until so directed by the Architect.

E. No work will be accepted until it conforms in every respect to the finished sample.

F. Protect mockups for the duration of the job.

1.07 DELIVERY, HANDLING AND STORAGE

A. All materials shall be of grade, brand and manufacturer as approved by the Architect and shall be delivered and stored in the original sealed containers, bearing the Manufacturer's label indicating grade, type and color.

B. Deliver materials and handle so as to prevent the inclusion of foreign materials and the damage of materials by water, and in ample time to facilitate inspection and tests.

C. Store all materials in spaces designated by the Owner’s Representative or Project Manager. All such spaces shall meet pertinent City, State, and Federal code and fire regulation standards and shall be locked and inaccessible to those not employed under this section, except the Owner's Representative. All storage spaces shall maintain the minimum storage temperatures recommended by the painting manufacturer and be protected from direct ground contact and inclement weather.

D. No kiln–dried materials shall be placed in any building unit unless the unit is sufficiently dry. Delivery and storage of materials is the responsibility of the Contractor.

1.08 PROTECTION

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A. Protect, using extreme care, surrounding materials and finishes from damage due to the work of this Section. Any damage caused by the work of this Section is unacceptable and shall be repaired to the satisfaction of the Architect at no cost to the Owner.

B. Take all necessary precautions to protect all persons (whether engaged in the work of this Section or not) from all hazards of any kind associated with the work of this Section.

C. Take all necessary precautions to prevent fire and spread of fire.

D. Provide for adequate ventilation at all times during work of this Section.

E. Paint or solvent soaked rags, waste, overalls or other material which might constitute a fire hazard shall be placed in metal containers and be removed from the premises daily in coordination with Project Manager's requirements for waste removal.

1.09 LEAD–CONTAINING PAINT

A. Work that disturbs lead–containing paint (LCP) shall be done in accordance with applicable OSHA regulations, Title 29, Section 1926.62, Code of Federal Regulations, OSHA, US Department of Labor.

B. Dispose of lead–containing paint chips as hazardous waste according to federal, state and local regulations: US Department of Transportation, 49CFR Parts 173, 178 and 179.

C. Comply with all applicable regulations for the containerization, transportation and disposal of hazardous waste.

1.10 ENVIRONMENTAL REQUIREMENTS

A. Follow manufacturer's guidelines concerning temperature and humidity requirements for application of repair materials and coatings, or as specified herein, whichever is more stringent.

B. All chemical materials shall be safe in use and shall not violate City, State or Federal environmental safety regulations.

C. Perform all work of this Section in accordance with all City, State and Federal regulations regarding the transportation, storing, handling, application, removal, and disposal of the products involved.

D. Paint and other coatings must be applied in a dust–controlled environment acceptable to the Architect.

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PART 2 – MATERIALS

2.01 GENERAL MATERIAL REQUIREMENTS

A. Wherever a ready–mixed product is specified for use, the containers shall be labeled, giving the exact formula of the mixtures and these shall be guaranteed by the manufacturer and shall be subject to chemical analysis performed by the Architect or designated others, at the expense of the Restoration Contractor.

B. Where any manufacturer makes more than one grade of each material specified, the Contractor shall use the highest grade of each type, whether or not the material is mentioned by trade name in these specifications.

C. Follow manufacturer's instructions regarding preparation of surfaces, mixing, applying, drying, etc. In case of conflict with this specification, the more stringent shall govern.

D. Materials shall conform to the following requirements and shall be new of the highest grade, free from defects, and of recent manufacture. Where product names and numbers are indicated and are not available, furnish products which are equal to original specifications, as approved and at no additional cost to the Owner.

2.02 ARCHITECTURAL WOODWORK, GENERAL REQUIREMENTS

A. The grades of all materials under this section shall be as defined by the rules of the recognized association of lumber manufacturers producing the materials specified. Wood for millwork shall conform to, or exceed, the requirements of "Premium Grade, Class 1 " as established by Quality Standards or the Architectural Woodwork Institute and shall be provided in the cuts and figure required to match existing wood. Where conflicts occur between these standards and this Specification, the more stringent requirement shall govern in each case.

B. Pecky cypress for roof eave boards may be salvaged from existing, post-historic boards at the interior of the building, or sourced new and modified by the contractor to match the void pattern of adjacent historic material.

C. Lumber and plywood shall bear the grade and trademark of the association and under whose rules it is produced, and a mark of mill identification.

D. Lumber and finished woodwork throughout shall be of sound stock, thoroughly seasoned, kiln– dried to a moisture content not exceeding 19% for framing and 6–11% for finish.

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E. Work that is to be finished or painted shall be free from defects or blemishes on surfaces exposed to view that will show after the finish coat of paint is applied. Any materials which are in any way defective and not up to specifications for quality and grade, or otherwise not in proper condition shall be rejected.

F. All glues shall be non–staining waterproof types as manufactured by 3M Company, Pittsburgh Plate Glass Company, or Borden Company, as approved by the Architect.

2.02 EPOXIES, ADHESIVES, FASTENERS, FILLERS

A. Epoxy Consolidants and Fillers for the stabilization and repair of deteriorated wood and for filling voids, losses, and holes:

1. ConServ 100 Flexible Epoxy Consolidant and ConServ 200 Flexible Epoxy Patch, including slow, standard, and fast hardeners, as manufactured by ConServ Epoxy LLC, PO Box 454, Northford, CT 06472, 203-484-4123. 2. West System epoxy resins, fillers, and additives, including slow and fast hardeners, as manufactured by Gougeon Brothers, Inc., 100 Patterson Ave., Bay City, Michigan 48706, 866-937-8797. 3. Approved equal.

B. Adhesives for Fabrication and Repair. Non–staining, water resistant, aliphatic resin type glue for exterior applications:

1. Elmer’s Carpenter’s Exterior Wood Glue as manufactured by Elmer’s Products, Inc., 460 Polaris Parkway, Westerville, OH 43082, 800-848-9400. 2. Titebond II Premium Wood Glue, as manufactured by Franklin International, 2020 Bruck Street, Columbus, OH 43207, 800-877-4583. 3. Approved equal.

2.03 PAINT STRIPPER & EQUIPMENT

A. Materials and procedures for chemical stripping of paint shall be as specified in Section 09 91 00, Historic Paint Restoration.

B. Handheld power tools used for the removal of paint shall be equipped with vacuum attachments that control air–borne lead dust. Acceptable manufacturers include:

1. Desco Manufacturing company, Long Beach, CA (800) 337–2648. 2. The Marindus Company, Englewood, NJ, (201) 567–8383.

2.04 CLEANING MATERIALS

A. Cleaning Pads: Scotch–Guard Red Pads, or approved equal.

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B. Cleaning Pads: 0000 steel wool, clean and free of contaminants and corrosion.

C. Clean, lintless cotton rags and cheesecloth.

2.05 FABRICATION OF NEW WOODWORK

A. All work shall comply with AWI Section 1000, Premium Grade for new millwork. Repair existing millwork exactly matching existing wood species, joinery, profiles, dimensions, and wood species characteristics including lenticular voids in pecky cypress, unless otherwise scheduled for modifications.

B. Work shall be fabricated to designs, dimensions, and details shown on the Drawings and approved shop drawings, and shall replicate existing profiles except where specifically indicated otherwise.

C. Exterior Wood Primer for undercoating and back painting all new work to be painted, as specified in Section 09 91 00, Historic Paint Restoration:

1. Pratt and Lambert of Long Island City, NY 2. Sherwin Williams Company of Newark, NJ 3. Benjamin Moore of Milton, MA 4. Approved equal.

2.06 FINISH MATERIALS

A. Solvents

1. Denatured Alcohol: E.Z. Alcohol, Pure 180 proof denatured alcohol, as manufactured by E.E. Zlmmerman Co., Pittsburgh, PA 15238, or approved equal. 2. Mineral Spirits: As manufactured by Ashland Chemical, Inc., Carteret, NJ, or approved equal. 3. Odorless Paint Thinner: 100% petroleum distillate, mineral spirits, U.S. Paint Thinner, asmanufactured by Recochem Inc., Montreal, Quebec, or approved equal. 4. Turpentine: Pure gum spirits of turpentine meeting requirements of ASTM D– 13.

B. Wood Preservative for application to bare wood prior to painting. Water-borne, Disodium Octaborate Tetrahydrate termiticide, insecticide, and fungicide:

1. Bora-Care, as manufactured by Nisus Corporation, 100 Nisus Drive, Rockford, TN 37853, 800-264-0870, or approved equal.

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C. Exterior stain for application to roof eave boards. As specified in Section 09 91 00, Historic Paint Restoration, color to be determined by Architect:

1. Semi-Solid Acrylic Siding Stain #1100 Series, as manufactured by Cabot, 8725 W. Higgins Rd., Chicago, IL 60631, 800-US STAIN, or approved equal.

PART 3 – EXECUTION

3.01 FIELD CONDITIONS

A. Take all necessary field measurements and verify all installation conditions prior to submission of shop drawings and other submittals, and prior to ordering and fabrication of material.

B. Existing Conditions and Documents: The Contractor shall visit the site to become familiar with conditions and surfaces to be finished, and shall examine the drawings and specifications for the material of the various surfaces and the extent of repair work and finishes, and determine the extent of the work and the type of repair work and finishes application required for each respective surface as specified herein.

C. Coordinate work with other trades as required during salvage and restoration operations.

3.02 REMOVAL OF PAINT

A. Chemical strippers shall be used to strip all paint from areas designated on the Drawings, as specified in Section 09 91 00, Historic Paint Restoration.

B. Protect adjacent surfaces from damage or staining. Any damage or staining will be repaired by the Contractor to the satisfaction of the Architect, at no additional cost to the Owner.

C. Strip all paint using the following procedure:

1. Apply stripper following manufacturer's written instructions. Dwell time shall be in accordance with approved test procedures. 2. Remove stripper, following manufacturer's written instructions. 3. Remove all traces of chemical and residue as indicated in manufacturer's literature. 4. Repeat procedure as necessary to remove all coatings. 5. Conduct final wipe down using steel wool and denatured alcohol. Do not soak wood or apply too much solvent at one time. Prevent, drips, runs and flooding of the surfaces.

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D. Stripping, scraping, and painting preparation

1. Coatings on wood surfaces may contain lead based paint. Protect workers and general public from hazards associated with lead based paint removal according to the latest regulations. Contain, store, transport, and dispose of waste in accordance with all applicable regulations. 2. Remove all paint, as indicated, using chemical paint removers. Rinse as specified in Manufacturer's recommendations and in 3.02.D. 3. Provide documentation demonstrating that methods used do not release lead dust into the air. Demonstrate that methods used do not damage existing materials to be scraped and stripped or adjacent building materials.

3.03 RESTORATION OF WOODWORK: GENERAL

A. General: Inspect all elements for condition. Restore all woodwork, including specific items noted on the Drawings, using methods specified in this section. Restoration work includes all necessary repair work to return wood to a fully intact and structurally sound condition acceptable to the Architect and is not limited to specific items noted on the Drawings. Finished woodwork shall be fully intact and structurally sound.

B. Remove and label existing hardware and fixtures.

1. Protect openings in the work from weather. 2. Remove all extraneous nails, staples, bolts, hooks, etc. from woodwork. Fill resulting holes, gouges and indentations, and sand smooth with approved filler material.

C. Remove all dirt and debris from woodwork.

D. Remove all loose paint by scraping and sanding to feather–edge joints between existing paint and bare wood. All pieces requiring epoxy consolidation shall be stripped of all paint using chemical paint stripper.

3.04 REPAIR OF DAMAGED COMPONENTS

A. Repair holes, indentations, gouges, etc. greater than 1/4" X 1/4" but less than 1" X 1" X 1/2" deep using epoxy repair according to manufacturer’s written instructions, and as indicated in 3.05.

B. Repair holes, indentations, gouges, etc. using wood dutchmen for holes, indentations, gouges, etc., larger than 1" X 1 " X 1/2" deep, as indicated in 3.06.

3.05 EPOXY REPAIRS OF DAMAGED COMPONENTS

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A. For wood deterioration less than 3/4" deep (test with an ice pick using moderate hand pressure): Brush apply epoxy resin consolidant on to clean wood surfaces. Protect adjacent masonry and other surfaces by masking surrounding area.

B. For wood deterioration as indicated in 3.04.B, and cracks, splits and checks, brush apply epoxy resin consolidant on to clean wood surfaces. Protect adjacent surfaces by masking entire surrounding area.

1. Follow manufacturer's instructions for mixing of components, application temperatures, and material handling. 2. Apply heavy coat of consolidant and allow to soak into wood. Apply additional coat while previous coat is un–cured to completely saturate the deteriorated areas of wood. 3. Fill depressions, voids, gouges, cracks, splits and checks with epoxy filler and sand to smooth surfaces.

3.06 DUTCHMAN REPAIRS

A. Dutchman Repairs: Repair deteriorated, split, or missing wood with dutchman repairs matching existing adjacent wood species, grain orientation, and wood species characteristics including lenticular voids in pecky cypress.

1. Neatly cut out defective materials and enough sound wood to bond dutchman to sound substrate. Form a prismatic void in existing wood with square corners and edges. Cut dutchman to exactly fit void, with exposed portion matching original profile of woodwork, and grain of dutchman insert parallel to original wood grain direction. 2. Secure dutchman with waterproof adhesive and clamp (or for frames, nail) in place until glue is set. 3. Where necessary to cut off an end of a component and install dutchman, use a diagonal scarf joint for end–to–end joints. 4. For wood deterioration greater than 3/4" deep:

a. Drill three–eighths inch (3/8") diameter holes through approximately 90% of thickness of wood from top. Holes shall be staggered, on approximately three inch (3") centers. b. Protect all surrounding building elements from spillage of epoxy with polyethylene sheets and tape. c. Pour low modulus, low viscosity epoxy resin into each hole until hole has been filled. As epoxy is absorbed into the wood, top off holes with epoxy as required until all holes will accept no more. (If the wood being treated contains water, the water will be forced out by the epoxy without affecting the procedures.)

06 40 00 - 13

d. Brush the remaining weathered portions of wood with epoxy. Repeat brush application until all surfaces being treated are saturated with epoxy and are flush and smooth. e. Finish to match original configuration. Thoroughly sand cured epoxy to provide proper surface for bond of paint. (Curing time varies with ambient temperature and product used.) f. Protect epoxy from prolonged exposure to ultraviolet light. Prime paint shall be applied within 48 hours after cure.

B. Tighten loose and open joints using waterproof glue and finishing nails properly countersunk. Fill all joints that cannot be closed without dismantling the component and fill all other holes in wood with non–shrinking epoxy wood filler.

C. Sand to smooth surface.

3.07 INSTALLATION OF SALVAGED OR NEW REPLICATED WOODWORK

A. Discard units of material which are unsound, warped, bowed, twisted, improperly treated, not adequately seasoned, or too small to fabricate work with minimum of joints or optimum jointing arrangements, or which are of defective manufacture with respect to surfaces, sizes or patterns.

B. Install work plumb, level, true, and straight with no distortions. Shim as required using concealed shims. Install to a tolerance of 1/8" in 8'–0" for plumb and level work; and with 1/32" maximum offset in flush adjoining surfaces and 1/16" maximum offsets in revealed adjoining surfaces.

C. Standing and Running Trim: Install with minimum number of joints possible, using full length pieces to the greatest extent possible.

D. Paneling: Anchor paneling to supporting substrate with concealed clips and by blind nailing on backup strips, splined–connecting strips, and similar associated trim and framing. Do not face nail unless otherwise indicated or approved.

E. Anchor finish carpentry work to anchorage devices or blocking built–in or directly attached to substrates. Secure to grounds, stripping and blocking with countersunk, concealed fasteners and blind nailing as required for a complete installation. Except where prefinished matching fastener heads are required, use fine finishing nail for exposed railings, countersunk and filled flush with finished surface, and matching final finish where clear finish is indicated. Mix various hues of colored putty to match, as closely as possible, the color of the surrounding wood.

F. Assure that elements are constructed to fit into proposed locations without disturbing the original or new construction.

06 40 00 - 14

G. Install woodwork in accordance with approved shop drawings. Plane panels, stiles and rails as required to fit properly and to align with adjacent existing woodwork.

H. Prior to installation of salvaged woodwork, repair existing woodwork as described below.

I. Install all finish hardware and fixtures as specified, accurately fitting and adjusting hardware as required.

3.08 FABRICATION OF REPLICATED WOODWORK AND REFINISHING

A. Fabricate all new woodwork in the area designated on the Drawings.

B. New woodwork shall match the original wood as specified.

C. Finish the new woodwork to match the proposed finish on the original woodwork and millwork as described in 3.11.

3.09 ADJUST AND CLEAN

A. Repair damaged and defective finish carpentry work wherever possible to eliminate defects functionally and visually; where not possible to repair properly, replace woodwork. Adjust joinery for uniform appearance.

3.10 APPLICATION OF WOOD PRESERVATIVE

A. Water-borne, Disodium Octaborate Tetrahydrate termiticide, insecticide, and fungicide shall be applied to all bare surfaces of wood after repairs and cleaning have been carried out, and before paint and stain finishes are applied:

1. Follow manufacturer’s written instructions and labeling with regard to substrate conditions, dilution, mixing, and application. 2. Provide protection to adequately protect adjacent work and materials. Do not allow wood preservative to drip, pool, or settle onto adjacent surfaces, including exposed sides of stain finished eave boards. 3. Apply only to clean, dry, bare wood that has no remaining paint or water repellent present. Do not apply in rain. Do not expose treated exterior wood surfaces to rain for at least 48 hours after treatment. 4. Apply first coat of wood preservative to the point of saturation. Allow to dry at least 20 minutes before applying second coat, if necessary. 5. Allow wood preservative to dry for at least 48 hours before applying paint or stain finish.

3.11 REFINISHING PREPARATION

06 40 00 - 15

A. General:

1. All surfaces shall be properly prepared to receive paint or stain finishes, including thorough cleaning of all grime, grease, dirt, loose material and other substances that may interfere with proper adhesion of paint or stain. All surfaces to be finished shall be dry. Allow several days for the wood surfaces to dry after stripping procedures. 2. If the surfaces are not thoroughly dry or if they cannot be put in proper condition to receive paint or stain by customary, normal methods, including sanding, the Contractor shall notify the Architect in writing. 3. The starting of the work under this section will be construed as acceptance of such surfaces as being satisfactory, and any defects to his work resulting from such accepted surface will be corrected by the Contractor at their own expense. 4. Remove all imperfections in the previous coat before the subsequent coat is applied onto all painted surfaces. 5. Provide protection to adequately protect adjacent work and materials.

END OF SECTION

06 40 00 - 16 SECTION 09 01 25 HISTORIC PLASTER RESTORATION

PART 1 – GENERAL

1.1 GENERAL REQUIREMENTS

A. Work of this section shall comply with all Contract Documents.

B. All elevations, soffits, moldings, reveals, etc., are to be considered a part of the Work even if not directly shown in the schedules, unless indicated as excluded.

C. Intent: It is the specific intent of this Section to provide for restoration of historic plaster, lath and plaster substrate system. All work necessary to fulfill this intent shall be included in work of this Section.

D. Required Quality of Work: All work shall conform to strict standards set forth in the drawings and specifications and shall be carried out to achieve the highest quality restoration work. All work shall be completed in such a way as to protect existing architectural features from damage and to retain as much historic fabric as possible, with a minimum of material loss.

1. Perform a plaster conditions survey, including sounding and mapping of conditions, and confirm areas to be restored. 2. Provide an outline of work.

1.2 SECTION INCLUDES

A. Work of this Section includes all labor, materials, equipment, and services necessary to complete plaster restoration as shown on the Drawings, specified herein, and required by existing conditions and authorities having jurisdiction including, but not limited to, the following:

1. Repair and restoration of interior gypsum plaster and exterior cement plaster/stucco to address existing deficiencies, as well as any damage related to construction activities, including but not limited to the replacement of windows and trenching for electrical conduit. 2. Plaster conditions survey, sounding, and mapping. Document conditions on drawings. Supply annotated drawings of findings to Architect for review. 3. Site Protection: Local containment and dust control at locations of disturbances of lead-containing paint. 4. Plaster Reattachment a. Loose metal lath to substrate with tapered anchors. b. Unstable areas of plaster back to existing stable metal lath with

09 01 25 - 1 mechanical anchors. c. Unstable cast ornament to substrate with mechanical fasteners. 5. Repair or replace existing historic plaster and ornament, including areas exhibiting cracks, damage, delaminated finishes, holes, etc. a. Bring repaired surfaces to same level and finish as adjacent existing finishes. b. Repair or replace previous unstable or non-conforming patches to same level and finish as adjacent existing finishes. c. Remove abandoned anchors and fasteners, and patch holes left by removal. d. Repair large cracks by routing and filling to same level and finish as adjacent existing finishes. 6. Cutting and patching plaster where necessary for mechanical and electrical work. a. Modify cuts, trenches, and voids in plaster resulting from mechanical and electrical work to provide sound, square edges. b. Fill voids to same level and finish as adjacent existing finishes. 7. Remove and replace all rusted metal lath. 8. Replace missing and severely damaged portions of cast ornament with new ornament to match original condition. a. Sculpt missing ornament b. Produce new molds c. Cast new units d. Install and point up new cast units e. Hand-build in situ 9. New three-coat plaster on metal lath – match texture of adjacent surfaces. a. Textured finish

B. Related Work Specified Elsewhere: 1. Section 04 72 00 – Historic Cast Stone Restoration 2. Section 05 70 00 – Historic Metal Restoration 3. Section 06 40 00 – Historic Wood Restoration 4. Section 09 91 00 – Historic Paint Restoration

1.3 QUALITY ASSURANCE

A. Restoration Specialist: Award plaster restoration to a firm with a minimum of ten (10) years of experience in the restoration of plaster and the process and operations. Firm shall be regularly engaged in plaster restoration and repair on historic buildings and shall demonstrate to the satisfaction of the Architect, Conservator, and the City of Coral Gables Historical Resources Department that, within previous ten (10) years, it has successfully performed and completed at least five (5) projects similar in scope and type to required work involving facilities designated as Landmarks by local governmental authorities,

09 01 25 - 2 listed on the National Register of Historic Places, or listed on a State Register of Historic Places.

1. Qualifications: Firm shall show qualifications and specialization in the following: a. Field survey and documentation b. Mechanical anchoring systems to attach historic plaster framing to masonry substrate c. Injection of consolidants and adhesives in historic plaster d. Mold making for decorative moldings and features e. Hand building decorative moldings and features in plaster f. Casting ornamental plaster g. Surface repair of flat and ornamental plaster h. Installation of ornamental plaster i. Replication of historic flat plaster using three-coat systems and required lath. 2. Project Portfolio: Project descriptions of three (3) prior projects of National or State Historic Register status must include the following information: a. Project name and address b. Historic designation c. Client/Owner name and contact information d. Total Value of overall project e. Value of plaster contract f. Narrative describing work performed on this project g. Photographs of completed work 3. Foreman: Plaster restoration shall be directly supervised by a full-time foreman, who must have a minimum of five (5) years of experience in the restoration and conservation of historic plaster and the process and operations, and two (2) years with the present company. Foreman shall read and speak English fluently. Foreman shall be on site daily for duration of work of this Section. Same foreman shall remain on job throughout work unless his/her performance is deemed unacceptable. 4. Artisans: Plaster restoration shall be carried out by a skilled artisan who is thoroughly experienced with materials and methods specified, has a minimum of three (3) years of experience with work on historic buildings similar to that required by this Section, and is familiar with project requirements. Contractor shall certify that all artisans employed for work of this Section fully understand project requirements. In acceptance or rejection of work of this Section, no allowance will be made for workers’ incompetence or lack of skill. Provide list of qualified artisans with bid. 5. Subcontractors: Subcontractors are subject to same requirements as Restoration Specialist. Subcontracting of any work included in this section, except for that accepted by Architect in writing prior to award of Contract, is specifically prohibited.

09 01 25 - 3

B. Laws, Codes, and Regulations: All work of this Section shall comply with requirements of all applicable federal, state, and local laws, codes, and regulations.

C. Referenced Standards: “Reference Standards” prepared by the Conservator and approved by Architect, in writing, shall constitute standards by which plaster restoration work of this Contract shall be judged acceptable by Architect. Mockups prepared by Restoration Specialist to match Reference Standards shall serve as standards for the creation of decorative finishes.

1. Materials and procedures shall comply with the following guidelines and standards and with requirements of this Section. In case of conflict, the more stringent requirements shall govern. a. “Code of Ethics” and “Guidelines for Practice” of American Institute for Conservation of Historic and Artistic Works (AIC). b. U.S. Department of the Interior. Secretary of the Interior Standards for Rehabilitation and Guidelines for Rehabilitating Historic Buildings. 2. ASTM International (ASTM) a. ASTM C 5, Quicklime for Structural Purposes b. ASTM C 28, Gypsum Plasters c. ASTM C 35, Inorganic Aggregates for Use in Gypsum Plaster d. ASTM C 59, Gypsum Casting and Molding Plaster e. ASTM C 206, Finishing Hydrated Lime f. ASTM C 631, Bonding Compounds for Interior Plastering g. ASTM C 842, Installation of Interior Gyspum Plaster h. ASTM C 847, Metal Lath i. ASTM C 911, Quicklime, Hydrated Lime, and Limestone for Chemical Uses.

D. Allowable Tolerances: When replacing missing or removed material with new material, install material to ensure a continuous and uniform appearance. Feather plaster repairs to exactly match and continue existing edges and contours of plaster walls. Repairs shall be true and flat in connection with adjacent plaster when checked with an 8-foot straight edge. Do not exceed 1/8 inch in 8 feet for bow or warp of surface or for plumb or level. Correct irregularities observable by the naked eye in all cases. Work containing ridges, ledges, and irregularities will be rejected. Remove rejected work and provide new plasterwork complying with requirements of this Section at no additional Cost to owner.

E. Knowledge of Site and Project Conditions: Bidders must visit project site before submitting bid and make themselves thoroughly familiar with specific conditions relating to this Section. Submission of bid shall be considered

09 01 25 - 4 acknowledgement that Contractor is familiar with existing site conditions affecting work of this Section.

F. Sources of Materials: Obtain each type of material required for cast ornament restoration and three coat plastering from a single source, where possible, to ensure a match in quality, performance and appearance.

1.4 SUBMITTALS

A. General: Submit the following in compliance with the requirements of the Contract Documents. Revise and resubmit each item as required to obtain Architect’s and Conservator’s approval.

B. Qualification Data: Qualification data for firm and personnel specified in “Quality Assurance” Article that demonstrates that both firm and personnel have capabilities and experience complying with requirements specified. Submit this information with the bid.

C. Work Description: Prior to beginning plaster restoration work on site, submit detailed written description of proposed materials and procedures for each type of plaster repair and treatment to be performed. Submit new written information. Do not submit photocopies of Contract Documents, excerpts from Contract Documents, or duplication of text in Contract Documents. Description for each type of restoration work shall include, but not be limited to:

1. Materials and Procedures: Materials, methods, tools, and equipment proposed for use. 2. Protection: Description, including drawings and diagrams, of proposed materials and methods of protection for preventing harm, damage, and deterioration caused by work of this Section to all persons (whether involved in the Work or not), building elements, materials, and finishes, and the environment (including air and water).

D. Product Literature: Manufacturer’s published technical data for each product to be used in work of this Section including recommendations for application and use, test reports and certificates verifying that product complies with specified requirements, and Safety Data Sheets (SDS).

E. Samples:

1. Metal Lath: 12-inch square section. 2. Gypsum Plaster: 16-inch square, full-thickness panel of each type and configuration, including lath. 3. Cement Plaster: 16-inch square, full-thickness panel of each type and

09 01 25 - 5 configuration, including lath. 4. New Cast Plaster Elements: each element. 5. Anchors and Fasteners: Each type.

F. As-Built Documents: Documentation of all restored plaster finishes indicating location, products, and application techniques used for each finish.

1.5 MOCKUPS

A. General: Before beginning general plaster restoration work, prepare mock- ups to provide standards for work of this Section. Do not proceed with plaster restoration until Architect, Conservator, and Owner’s Representative have approved relevant mockups, in writing.

1. Locate mockups as directed by Architect, in writing. 2. Notify Architect and Conservator 48 hours prior to start of each mockup. 3. Architect will monitor mockups. 4. Perform mockups using personnel that will be executing the work and following requirements of this Section. 5. Repeat mockups as necessary to obtain Architect and Conservator’s written approval. 6. Protect approved mockups to ensure that they are without damage, deterioration, or alteration at time of Substantial Completion. 7. Approved mockups in undamaged condition at time of Substantial Completion may be incorporated into the Work. 8. Approved mockups will represent minimum acceptable standards for plaster restoration work. Subsequent plaster restoration work that does not meet standards of approved mockups will be rejected.

B. Prepare the Following Mockups:

1. Typical repairs. a. Lath and support – one location b. Historic flat plaster with textured surface – large three-coat plaster patch 2 square feet or more – one (1) location c. Historic flat plaster – small patch, 1 SF or less (1) Small holes at areas of anchor installation – one (1) location d. Large crack repair – two (2) locations 2. Joint between new and old plaster.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Do not deliver materials to site until they have been approved in writing by Architect.

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B. Deliver and store materials in manufacturers’ original sealed containers or packaging, clearly labeled with manufacturers name, address and product identification, including grade, type, and color. Immediately reseal containers after partial use.

C. Store materials in spaces designated by Owner. Such spaces shall comply with pertinent federal, state, and local laws, codes and regulations and shall be locked and inaccessible to those not employed under this Section, except Owner’s Representatives.

1. Maintain temperatures in storage spaces within range recommended by manufacturer of material being stored in each case. Protect liquid components from freezing. 2. Store products and materials at least 4 inches above floor and protect them from water, dampness, and high humidity.

D. Discard and remove from site deteriorated or contaminated materials and products that have exceeded their expiration dates. Replace with fresh materials.

1.7 PROJECT CONDITIONS

A. Laws and Regulations: Perform work of this Section in compliance with all applicable federal, state, and local laws and regulations.

B. Protection of Persons: Take all necessary measures to protect all persons, whether or not they are involved with work of this Section, from harm caused by work of this Section.

1. Ventilate building spaces in compliance with ASTM C 842 and as required to remove water in excess of that required for hydration of plaster. Begin ventilation immediately after plaster is applied and continue until it sets.

C. Protection of Building: Protect building elements, finishes, and artwork from damage or deterioration caused by work of this Section. Repair damage to materials or finishes to Architect’s satisfaction at no additional cost to Owner.

1. Prevent fire or spread of fire.

D. Contract Drawings: The Drawings are two-dimensional representations of three-dimensional objects and do not show all surfaces. Perform work on all surfaces of projections, reveals, ornament, and other elements associated with

09 01 25 - 7 areas on which work is indicated.

E. Curing before Painting: Allow all new plasterwork and all plaster patches, fills, and crack repairs to cure for a minimum of 28 days before painting. Allow longer cure as recommended by paint manufacturer for optimum performance of paint.

1. Test with moisture meter to confirm standard suitable for paint, acrylic and polymer coatings has been met.

1.8 LEAD-CONTAINING PAINT (LCP)

A. General: Perform all work that disturbs lead-containing paint (LCP), handle all material that involves lead-containing paint, and transport and dispose of all lead-containing paint and residue in compliance with all applicable federal, state, and local laws and regulations for identification, removal, labeling, handling, containerization, transportation, and disposal of lead-containing material including, but not limited to, those referenced herein.

B. U.S. Department of Labor OSHA Regulations: Including but not limited to: Title 29, Code of Federal Regulations (CFR) Section 1926.62: “Lead Exposure in Construction” and Title 29, CFR Section 1910.1200: “Hazard Communication Standard.”

C. U.S. Environmental Protection Agency (USEPA) Regulations: Including but not limited to: Title 40 CFR Part 262: “Standards Applicable to Generators of Hazardous Waste” and Part 263: “Standards Applicable to Transporters of Hazardous Waste.”

1.9 ENVIRONMENTAL REQUIREMENTS

A. Follow material manufacturer’s guidelines concerning temperature and humidity requirements for preparation and application of finishing materials or requirements specified herein, whichever are more restrictive.

B. Three coat systems and ornamental plaster:

1. Cold weather requirements: When ambient temperatures are below 50°F, maintain continuous uniform temperature of not less than 50°F nor more than 80°F for at least 7 days before beginning plaster application, during its application, and until plaster is dry but for at least 7 days after application is complete. Distribute heat evenly; prevent concentrated or uneven heat from contacting plaster near heat source. 2. Ventilate building spaces as required to remove water in excess of that

09 01 25 - 8 required for hydrating plaster. Begin ventilation immediately after plaster is applied and continue until it sets. Comply with ventilation Requirements of ASTM C 842. a. Ventilate plaster conservation areas with sparkless ventilators.

C. Alert other contractors when flammable materials are in use.

D. The shelf life of mold making material is drastically reduced after opening. Remaining product should be used as soon as possible. Follow manufacturer’s instructions for use. Immediately replace lids on mold making containers after dispensing product to prolong the shelf life of the unused product.

PART 2 – PRODUCTS

2.1 MATERIALS, GENERAL

A. Grade and Quality: Materials shall conform to requirements of this Section and shall be new, free from defects, and of recent manufacture.

1. Where any manufacturer makes more than one grade of each material specified, use highest grade and quality of each material, whether or not material is mentioned by trade name in these specifications. 2. Where products specified by name and number are not available, furnish products equal to original specifications, as approved by Architect and Conservator, in writing, at no additional cost to Owner. 3. Alternate Restoration Materials and Methods (If Any): If Restoration Specialist proposes alternate materials and methods to those specified for work of this Section, the Restoration Specialist shall provide detailed evidence of successful use on comparable projects and demonstrate effectiveness for use on this Project. Proposals for alternate materials and methods shall include testing, reports, and documentation of successful use on similar projects elsewhere and require approval from Architect and Conservator.

B. Ready-Mixed Products: Wherever a ready-mixed product is specified for use, containers shall bear labels giving exact mixture formula. Manufacturer shall guarantee formula, and product shall be subject to chemical analysis by laboratory selected by Architect and Conservator, in writing, at Contractor’s expense.

C. Manufacturer’s Instructions: Comply with material manufacturer’s instructions for use of products (including surface preparation, mixing, applying, drying, etc.). In case of conflict of requirements of this Section, the more stringent requirements shall govern.

09 01 25 - 9

2.2 PLASTER RESTORATION MATERIALS

A. Gypsum Plaster: ASTM C 28

1. Super-White Gauging Plaster; National Gypsum Co. 2. Champion Gauging Plaster; United Stated Gypsum Co. 3. Red Top Gauging Gypsum Plaster; Untied States Gypsum Co. 4. Star Gauging Plaster; United States Gypsum Co.

B. Gypsum Molding Plaster: ASTM C 59

C. Bonding Agent: For bonding new plaster to existing plaster:

1. Plasterweld as manufactured by Larsen Products, or approved equal. 2. ACRYL-60 as manufactured by Thoro Systems Products, or approved equal. Verify compatibility of bonding agent with actual cement used.

D. Special Finishing Hydrated Lime: ASTM C 206

1. Ivory Finish Lime; United States Gypsum Co. 2. Snowdrift Finish Lime; United States Gypsum Co.

E. Lime Putty: Special finishing hydrated lime machine-mixed with water to putty consistency and allowed to stand before using. Use approved measures to prevent excessive evaporation.

F. Cement Plaster/Stucco: ASTM C150:

1. Type I Portland cement or white Portland cement, as required. 2. Plastic cement of any type shall not be used.

G. Fibers: Non-staining, alkali resistant synthetic or vegetable or mineral product not more than 2 inches long, clean and free from foreign material.

H. Sand: Natural or manufactured sand complying with ASTM C 35.

I. Water: Clean, fresh, potable, and free from all substances that might have adverse effects on plaster, substrate, or embedded elements and from contaminants that may cause staining or efflorescence.

J. Plaster of Paris: ASTM C 28.

K. Crack fill and joint compound:

09 01 25 - 10

1. Durabond setting type gypsum joint compound, as manufactured by USG, or approved equal.

L. Sundry Items:

1. Fiberglass mesh tape 2. Sparkless ventilators 3. Heavy plastic 4. Protective clothing, suits and gloves 5. Drills & miscellaneous drill bits 6. Drill stops 7. Drill paddle 8. Enclosed caulking gun 9. Mixing containers, measuring containers, and scale 10. Trowels, palette knives, chisels, dental tools, hammer 11 HEPA-filtered vacuum cleaner 12. Stainless Steel screws of various sizes 13. Plaster washers of various sizes 14. No. 30 Sieve

2.3 SUPPORTING MATERIALS

A. Metal Lath for General Support: Galvanized diamond mesh lath conforming to ASTM C 847, ASTM A 568 (steel), and ASTM A 525 (galvanizing coating), cut from copper bearing sheet steel, flat, expanded metal not lighter than 3.4 lbs. per sq. yd.

B. Lacing Wire: Stainless steel, not less than 0.035-inch diameter.

2.4 ANCHORS AND FASTENERS

A. General: As indicated on Drawings and approved shop drawings and approved by Architect, in writing.

B. Attachments for Metal Lath: Stainless steel screws long enough to penetrate substrate at least 1 inch and with heads large enough to securely engage the lath as approved by Owner, in writing.

PART 3 – EXECUTION

3.1 GENERAL

09 01 25 - 11 A. General: Replicate, repair and restore plasterwork in locations as required to restore existing damaged plaster surfaces and existing deteriorated plaster surfaces to sound secure condition and original planes and profiles; and as required to provide sound, securely attached plasterwork with surfaces matching original surfaces.

B. Existing Conditions and Documents: Visit site to become familiar with conditions and surfaces on which plaster finishes are to be restored and examine Drawings and Specifications for extent of interior plaster, and from there determine extent of work and type of plaster preparation, restoration and replication as specified herein.

C. Examine the surfaces scheduled to be finished prior to commencement of work. Report any conditions that may potentially affect proper application.

D. Supports and Lath: Repair or replace supports and lath where they are missing, damaged, or deteriorated to provide sound, secure, optimal substrates to receive plaster.

1. Install molded elements with approved metal attachments, adhesives and anchors. 2. Where plaster is removed or missing, apply new metal lath.

E. Plaster Thicknesses: In each location, provide thickness required to provide plumb and square wall surfaces and to provide surfaces flush with adjacent surfaces.

1. Replicate, repair, and restore plaster moldings and cast ornament as required to restore wall and ceiling plaster to sound condition and original profile and surface.

F. Installation: Execute plaster repairs edge to edge in long strips or large areas for each separate coat. Where breaks are necessary, lap new work over adjoining work.

3.2 PLASTER CONDITIONS SURVEY

A. Contractor will document plaster existing conditions via a “hands on" sounding examination.

B. Based on physical sounding and visual examination, the Contractor will document conditions and schedule them to a drawing that will give an overall sense of the existing conditions. The conditions survey will include all areas of the face of the plaster when accessible from scaffolding.

09 01 25 - 12

1. The Conditions to be recorded are: a. Water damage b. Damaged lath, stringers, and joists c. Cracks d. Areas of loss e. Rusted lath and metal framing f. Prior remedies including replacement, mechanical devices, etc. g. Plaster that is detached from the lath h. Lath that is detached from structural support i. Percentage of keys missing or broken j. Previous failed or inappropriate patches k. Any other conditions that affect the work of this Section.

C. Submit findings and recommendations for treatment to Architect.

3.3 MECHANICAL RE-ATTACHMENT METHODS

A. Where sections of plaster lath require mechanical re-attachment to framing, pre-drill holes and insert Helifix anchors. Assume installation of one (1) anchor per every 4 SF.

3.4 PATCHING HOLES REMAINING AFTER ANCHORS ARE INSTALLED AND/OR REMOVED

A. Using HEPA-filtered vacuum, clean substrate free of dust and dirt.

A. Seal holes with bonding agent.

C. Install patching material to provide surface matching adjacent profile. Finish surfaces of patches to match adjacent plaster surface. Do not damage adjacent finishes.

3.5 REPAIR OF CRACKS EXCEEDING 1/32 INCH THICK

A. Channel cracks and undercut (to create a key) using fine tools or dental picks. Be careful not to remove excessive amounts of original material. Using HEPA- filtered vacuum and fine tools, scrape out all loose materials as a result of this procedure. Insure that fill will be "mechanically" attached to original existing lath, i.e., fiberglass mesh tape that is tacked or glued to original substrate.

B. Apply bonding agent to all crack surfaces.

C. Fill crack with patching material with the use of pointing trowel or artist's palette

09 01 25 - 13 knives. Allow no patching material to cover or damage adjacent existing original paint or plaster. Fill should match adjacent existing original plaster texture and when dry, be at same level as original plaster finish.

D. Surface shall show no signs of crack or crack repair after finish has been applied. Cut out work that does not meet requirements of these specifications and repeat patching to Architect’s satisfaction.

3.6 CHANNELLING AND REPAIR OF VOIDS CREATED BY THE WORK OF OTHERS

A. Refer to Architect’s drawings and sections in mechanical/electrical where existing plaster will require channeling for new work or voids created by the removal of existing elements. Work with various trades in cutting out plaster as is required for new work. During cutting, minimize damage to plaster.

B. Fill voids and match existing adjacent plaster finish.

3.9 PATCHING PLASTER

A. Preparation: Remove all soft, broken, loose, delaminated and non-adhering plaster back to lath, masonry substrate, or to solid, sound plaster, making clean and sharp edges, beveled inward toward substrate to provide mechanical key. Ensure that remaining plaster is completely bonded to substrate.

1. Using HEPA-filtered vacuum, clean surface on which new plaster patch is to be applied clean and free of all existing plaster and other contaminants. 2. Provide new metal lath and supporting elements as required to provide secure, sound substrate.

B. Bonding Agent: Apply bonding compound on plaster surfaces in strict accordance with manufacturer’s instructions.

C. Apply three-coats of gypsum or cement plaster as required, match existing adjacent finish.

3.10 PATCHING DAMAGED ORNAMENT

A. General: Patch damaged areas of cast ornament and areas in which portions of ornament are missing to match original size and shape.

B. Clean remaining portions of ornament that will contact patching material to remove dirt and other substances that might inhibit adhesion of patching compound.

09 01 25 - 14 C. Build up ornament to original size and shape with patching compound or apply patching compound proud of original profile and carve to original size and shape after compound has cured. Follow manufacturer's directions to ensure adhesion between patching material and original ornament.

3.11 FABRICATION OF CAST PLASTER

A. Fabricate molds from existing undamaged plaster, or sculpt clay models to match each new design. 1. Seal porous plaster surfaces from which mold is to be brushed on. 2. Apply release agent. 3. Apply molding material in multiple coats and allow to dry. 4. Allow the mold to cure overnight at room temperature. 5. Peel latex "mold" from plaster and support in mother mold formwork while plaster sets. 6. Pour neat molding plaster into form, insert anchoring devices as required, and allow to harden. 7. Remove cast ornament from mold and mount by approved methods.

B. For continuous elements, fabricate molds with overage on length to permit field fitting.

C. Cast replacement units with sharp lines and edges, with profiles to match existing.

3.12 IN-PLACE RESTORATION OF ORNAMENTAL PLASTER-MINOR DAMAGE

A. Remove existing damaged plaster back to a point at which sound material is reached.

B. Reattach loose cast elements with countersunk screws. Fill screw holes with patching compound; finish flush.

C. Fill voids with patching compound; tool to match existing profiles. Finish smooth and flush with adjacent surfaces.

3.13 REPLACEMENT OF ORNAMENTAL PLASTER CAST ELEMENTS

A. At locations indicated on survey report, remove existing damaged plaster back to a point at which sound material is reached, in straight lines.

B. Attach new cast plaster to substrate with countersunk screws. Fill screw holes with patching compound: finish flush.

09 01 25 - 15 C. Install pre-manufactured moldings and ornaments in accordance with approved shop drawings showing attachment systems.

D. Fill joints between units with patching compound: finish flush with adjacent surfaces.

E. Examine all restored cast ornament. Remove and replace any ornament that does not meet requirements of this Section, does not meet standard of approved mockups, or that has a defect that will mar appearance of finished work to meet requirements of this Section to Architect's satisfaction at no additional cost to Owner.

3.14 CLEANING AND PROTECTION

A. As work proceeds, promptly remove plaster where spilled, splashed or spattered.

B. During progress of work maintain premises free of unnecessary accumulation of tools, equipment, surplus materials and debris.

C. Collect waste, cloths and material which constitute a fire hazard, place in closed metal containers and remove daily from site.

D. At completion of work, remove temporary protection and enclosure of other work. Promptly remove plaster from door frames, windows, and other surfaces not indicated to be plastered. Repair floors, walls, and other surfaces stained, marred, or otherwise damaged during plastering. Remove all scaffolding, equipment, and materials, and leave site in a “broom-clean” condition.

END OF SECTION

09 01 25 - 16

SECTION 09 91 00 HISTORIC PAINT RESTORATION

PART 1 – GENERAL

1.01 RELATED DOCUMENTS

A. Work of this section shall comply with all Contract Documents, including the General Notes provided in drawings.

1.02 SUMMARY

A. Required Quality of Work: All work shall conform to strict standards set forth in the specifications and shall be carried out to achieve the highest quality restoration work.

B. Work of this Section includes all labor, materials, equipment, and services necessary to complete restoration of historic paint schemes, as called for in the Construction Documents, specified herein, and required by existing conditions and authorities having jurisdiction including, but not limited to, the following:

1. Preparation of interior and exterior plaster, cast stone, metal, wood, and terra cotta tile surfaces for painting, including general cleaning and removal of paint and tile floor coating overburden. 2. Replication of historic decorative paint and glaze finishes on interior plaster walls and ceilings, and cast stone ornament. 3. Replication of historic paint finishes on exterior plaster, cast stone, metal, and wood substrates. 4. Conservation and restoration of existing historic stencil designs and decorative painting on interior wood ceiling beams, wood doors, and decorative terra cotta floor tiles.

C. Intent: It is the specific intent of this Section to provide for cleaning and conservation of existing decorative finishes, and new decorative finishes to match historic finishes. Original finishes shall be preserved under new finish layers and shall be removed only in areas designated by the Architect and Conservator in project drawings. All work necessary to fulfill this intent shall be included in work of this Section.

D. Related Work Specified Elsewhere:

1. Section 04 72 00 – Historic Cast Stone Restoration 2. Section 05 70 00 – Historic Metal Restoration 3. Section 06 40 00 – Historic Wood Restoration 4. Section 09 01 25 – Historic Plaster Restoration

1.03 DEFINITIONS

A. “Conserved” or “Conservation”: Preservation of existing finish by means of an

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approved or specified treatment to stabilize a material or its finish.

B. “Restored” or “Restoration”: Preservation of existing finish by means of an approved or specified treatment to correct defects and improve appearance. Restored finishes shall always be made to match color and appearance of adjacent conserved or restored finishes of same type.

C. “Replicated” or “Replication”: Application of new finish by means of an approved or specified treatment to duplicate an existing finish, an original finish, or an otherwise identified finish.

D. “Reference Standards”: Samples of cleaning, restored, and replicated finishes (including stenciling and decorative painting) prepared by Conservator to serve as standards for the work to be provided under this section.

E. “Mockups”: Small panels produced on site by decorative painter to replicate finishes of Reference Standards.

1.04 QUALITY ASSURANCE

A. Restoration Specialist: Firm that performs decorative finishes restoration shall be regularly engaged in decorative painting and finish work on historic buildings. Firm shall demonstrate to Owner’s satisfaction that, within previous ten (10) years, it has successfully performed and completed at least five (5) projects similar in scope and type to required work involving facilities designated as Landmarks by local governmental authorities, listed on the National Register of Historic Places, or listed on a State Register of Historic Places.

1. Foreman: Decorative finishes restoration shall be directly supervised by a full- time foreman with experience equal to or greater than that required of Restoration Specialist. Foreman shall read and speak English fluently. Foreman shall be on site daily for duration of work of this Section. Same foreman shall remain on job throughout work unless his/her performance is deemed unacceptable. 2. Artisans: Decorative finishes restoration shall be carried out by a steady crew of skilled artisans who are thoroughly experienced with materials and methods specified, have a minimum of three (3) years experience with work on historic buildings similar to that required by this Section, and are familiar with project requirements. Contractor shall certify that all artisans employed for work of this Section fully understand project requirements. In acceptance or rejection of work of this Section, no allowance will be made for workers’ incompetence or lack of skill. 3. Conservators: Finishes conservation work shall be carried out by qualified conservators with at least three (3) years experience with work on historic painted finishes similar to those required by this section. All conservators must carry out work in accordance with the Code of Ethics and Guidelines for Practice of the American Institute for Conservation (AIC).

B. Standards: Materials and procedures shall comply with the following guidelines and standards and with requirements of this Section. In case of conflict, the more

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stringent requirements shall govern.

1. Applicable standards and recommendations of the Painting and Decorating Contractors of America (PDA). 2. Code of Ethics and Guidelines for Practice of American Institute for Conservation (AIC). 3. Secretary of the Interior’s Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring & Reconstructing Historic Buildings.

C. Knowledge of Site: Bidders must visit project site before submitting bid and make themselves thoroughly familiar with specific conditions relating to this Section. Submission of bid shall be considered acknowledgement that Contractor is familiar with existing site conditions affecting work of this Section.

1.05 SUBMITTALS

A. General: Submit the following in compliance with the requirements of the Conditions of the Contract. Revise and resubmit each item as required to obtain Architect’s and Conservator’s approval.

B. Qualification Data: Qualification data for firm and personnel specified in “Quality Assurance” Article that demonstrates that both firm and personnel have capabilities and experience complying with requirements specified. For firm, Foreman, and Conservator provide a list of at least three (3) completed projects similar in size and scope to work required on this project. For each project list project name, address, architect, conservator, supervising preservation agency, scope of contractor’s work, and other relevant information. Submit this information with the bid.

C. Product Literature: Manufacturer’s published technical data for each product to be used in work of this Section including recommendations for application and use, test reports and certificates verifying that product complies with specified requirements, and Safety Data Sheets (SDS).

D. Before and After Documentation: Document existing and completed work with clear, sharp, color photographs showing conditions of all areas of surfaces prior to and following completion of work.

E. Treatment Report: Contractor shall submit a written report documenting and summarizing the work performed under this section. The report shall comply with the recommendations for treatment reports and Guidelines for Practice of the American Institute for Conservation (AIC). The report shall include a description of the work undertaken on each surface, including, but not limited to, materials and procedures used, successful and unsuccessful tests performed, and copies of photographs taken during the work. The Treatment Report shall be prepared and signed by the Conservator.

G. Reference Standards: Prepare Reference Standards as specified in Article “Reference Standards,” below.

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H. Mockups: Prepare mockups for approval as specified in Article “Mockups,” below.

I. As Built Documents: Documentation of all restored decorative finishes indicating location, color, products, and application techniques used for each finish.

1.06 REFERENCE STANDARDS

A. Prepare the Following Reference Standards

1. Cleaning: Each type of finish treatment to be cleaned, min 12in.x12in. 2. Paint / Coatings Removal: Each type of substrate (i.e., cast stone, terra cotta flooring) requiring removal of paint or clear coating overburden; min 12in.x12in. 3. Finish Restoration: Each type of finish treatment requiring replication, restoration, or conservation (including color, glazing, clear coating, etc.) on each type of surface on which it is to be applied, minimum 12in.x12in.

1.07 MOCKUPS

A. General: Before beginning general decorative finishes replication, restoration or conservation work, prepare mockups to provide standards for work of this Section. Do not proceed with decorative finishes restoration until Architect, Conservator, and Owner’s Representative have approved relevant mockups.

1. Locate mockups as directed by Architect and Conservator. 2. Notify Architect 48 hours prior to start of each mockup. 3. Architect will monitor mockups. No mockup done in absence of Architect will be accepted. 4. Perform mockups using personnel that will be executing the work and following requirements of this Section. 5. Repeat mockups as necessary to obtain Architect and Conservator’s approval. 6. Protect approved mockups to ensure that they are without damage, deterioration, or alteration at time of Substantial Completion. 7. Approved mockups in undamaged condition at time of Substantial Completion may be incorporated into the Work. 8. Approved mockups will represent minimum acceptable standards for decorative finishes restoration work. Subsequent decorative finishes restoration work that does not meet standards of approved mockups will be rejected.

B. Prepare the Following Mockups

1. Cleaning: Each type of finish treatment to be cleaned, 12in.x12in. or as required to include all elements of finish treatment, whichever is greater. 2. Paint / Coatings Removal: Each type of substrate (i.e., cast stone, terra cotta flooring) requiring removal of paint or clear coating overburden; min 12in.x12in.

09 91 100 - 4

3. Finish Restoration: Each type of finish treatment requiring restoration (including color, gilding, consolidation, inpainting, etc.) on each type of surface on which the finish is to be restored (wood, plaster, etc.), 12in x12in. or as required to include all elements of finish treatment, whichever is greater. 4. Finish Replication: Each type of finish treatment to be applied in the Work (including color, gilding, glazing, clear coating, etc.) on each type of surface on which it is to be applied, 12in.x12in. or as required to include all elements of finish treatment. Whichever is greater.

1.08 PRODUCT DELIVERY, STORAGE, AND HANDLING

A. Do not deliver materials to site until they have been approved by Architect and Conservator.

B. Deliver and store materials in manufacturers’ original sealed containers or packaging, clearly labeled with manufacturers name, address and product identification, including grade, type, and color. Immediately reseal containers after partial use.

C. Store materials in spaces designated by Construction Manager. Such spaces shall comply with pertinent federal, state, and local laws, codes and regulations and shall be locked and inaccessible to those not employed under this Section, except Owner’s Representatives.

1. Maintain temperatures in storage spaces within range recommended by manufacturer of material being stored in each case. Protect liquid components from freezing 2. Store products and materials at least 4 inches above floor and protect them from water, dampness, and high humidity.

D. Deliver, store, and handle all products and materials to prevent damage, deterioration, or degradation and intrusion of foreign material.

E. Discard and remove from site deteriorated or contaminated materials and products that have exceeded their expiration dates. Replace with fresh materials.

1.09 PROJECT CONDITIONS

A. Laws and Regulations: Perform work of this Section in compliance with all applicable federal, state, and local laws and regulations.

B. Protection of Persons: Take all necessary measures to protect all persons, whether or not they are involved with work of this Section, from harm caused by work of this Section.

1. Provide adequate ventilation during work of this Section.

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C. Protection of Building: Protect building elements, finishes, and artwork from damage or deterioration caused by work of this Section using all means necessary. Repair damage to materials or finishes to Architect’s satisfaction at no additional cost to Owner.

1. Use all means necessary to prevent fire or spread of fire. 2. Do not use torches, heat guns, or any other heat generating equipment to remove paint or finishes. 3. Place paint or solvent soaked rags, waste, overalls, or other material that might constitute a fire hazard in metal containers and remove from premises daily.

D. Material Safety: Chemical materials shall be safe in use and shall comply with all applicable federal, state, and local laws and regulations.

E. Coordination: Coordinate work of this Section with work of other Division 9 Sections and work of other Divisions to ensure proper completion of the Work.

F. Contract Drawings: The Drawings are two-dimensional representations of three- dimensional objects and do not show all surfaces. Perform work on all surfaces of projections, reveals, ornament, and other elements associated with areas on which work is indicated.

G. Access for Inspection and Approvals: Provide Architect and Conservator access on a regular basis to all locations on which Reference Standards or mockups are being carried out, on which work is ongoing, and where work has been completed to allow for inspections and approvals. Provide means of access and safety precautions required to facilitate inspections and approvals.

1.10 LEAD-CONTAINING PAINT

A. Perform all work that disturbs lead-containing paint (LCP) in compliance with applicable OSHA regulations, including but not limited to, Lead in Construction and Hazard Communication Standard (Title 29, Sections 1926.62 and 1910.1200, respectively, Code of Federal Regulations, OSHA, US Department of Labor) and with all other applicable federal, state, and local laws and regulations for removal, handling, containerization, transportation and disposal of lead-containing material.

B. Dispose of lead-containing paint chips and other residue as hazardous waste in compliance with federal, state, and local laws and regulations, including but not limited to: US Department of Transportation, 49 CFR Parts 173, 178, and 179.

1.11 ENVIRONMENTAL REQUIREMENTS

A. Follow finishing material manufacturer’s guidelines concerning temperature and humidity requirements for preparation and application of finishing materials or requirements specified herein, whichever are more restrictive.

B. Apply all coating materials, including paint, metallic leaf, shellac, and transparent

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pigmented coatings, in a dust-controlled environment acceptable to Owner.

PART 2 – PRODUCTS

2.01 MATERIALS, GENERAL

A. Grade and Quality: Materials shall conform to requirements of this Section and shall be new, free from defects, and of recent manufacture. 1. Where any manufacturer makes more than one grade of each material specified, use highest grade and quality of each material, whether or not material is mentioned by trade name in these specifications. 2. Where products specified by name and number are not available, furnish products equal to original specifications, as approved by Architect and Conservator. 3. Alternate Restoration Materials and Methods (If Any): If Restoration Specialist proposes alternate materials and methods to those specified for work of this Section, the Restoration Specialist shall provide detailed evidence of successful use on comparable projects and demonstrate effectiveness for use on this Project. Proposals for alternate materials and methods shall include testing, reports, and documentation of successful use on similar projects elsewhere and shall be prepared and signed by the Conservator, as applicable.

B. Ready-Mixed Products: Wherever a ready-mixed product is specified for use, containers shall bear labels giving exact mixture formula. Manufacturer shall guarantee formula, and product shall be subject to chemical analysis by laboratory selected by Architect and Conservator at Contractor’s expense.

C. Manufacturer’s Instructions: Comply with material manufacturer’s instructions for use of products (including surface preparation, mixing, applying, drying, etc.). In case of conflict of requirements of this Section, the more stringent requirements shall govern.

2.02 CLEANING MATERIALS

A. Dry Cleaners, available from Talas, 330 Morgan Ave, Brooklyn NY 11211 212-219-0770

1. Absorene Book and Paper Cleaner 2. Dry-Cleaning Sponge 3. Wishab Sponges

B. Aqueous cleaning products: Non-ionic detergents and pH specific detergents for removing dirt, oil, grease, and other contaminants without damaging finishes to be cleaned.

1. Orvus WA Paste, available from Talas, 330 Morgan Ave, Brooklyn NY 11211, 212-219-0770, or approved equal. 2. Enviro Klean 2010 All Surface Cleaner, manufactured by PROSOCO, 3741 Greenway Cir., Lawrence, KS 66046, 800-255-4255, or approved equal.

09 91 100 - 7

3. Surfonic JL-80X Surfactant, available from Conservation Support Systems, P.O. Box 91746, Santa Barbara, CA 93190, 800-482-6299, or approved equal. 4. Liquid TSP Substitute Cleaner, manufactured by SAVOGRAN, 259 Lenox St., P.O. Box 130, Norwood, MA 02062, 781-762-5400.

C. Water: Clean, potable, free of oils, acids, alkalis, salts, and organic matter.

D. Solvents: For removal of dirt, oil, grease and other contaminants without damaging finishes to be cleaned, where aqueous cleaners are harmful to existing finishes.

1. Odorless Mineral Spirits

E. Brushes: Soft natural fiber bristle brushes.

F. Cotton Pads: Lint-free, nonabrasive cotton pads. Webril Handi-pads, available from Ames Supply Co., 1936-C University Lane, Lisle, IL 60532, 800-323-3856, or approved equal.

2.03 PAINT AND FLOOR FINISH REMOVAL MATERIALS

A. Paint Strippers, for removing opaque finish layers from cast stone masonry and ornament. Test the following products:

1. Peel Away 1 Heavy Duty Paint Remover, manufactured by Dumond Chemicals, Inc., 1475 Phoenixville Pike, Suite 18, West Chester, PA 19380, 609-655-7700, or approved equal. 2. Smart Strip PRO Professional Paint Remover, manufactured by Dumond Chemicals, Inc., 1475 Phoenixville Pike, Suite 18, West Chester, PA 19380, 609-655-7700, or approved equal. 3. Heavy Duty Paint Remover, manufactured by Cathedral Stone Products, Inc., 7266 Park Circle Dr., Hanover, MD 21076, 410-782-9150, or approved equal. 4. Enviro Klean SafStrip, manufactured by PROSOCO, 3741 Greenway Cir., Lawrence, KS 66046, 800-255-4255, or approved equal.

B. Floor Strippers, non-ammoniated liquid wax stripper/floor cleaner for removing wax and clear floor finishes from terra cotta tile floors without damaging substrate. Test the following products:

1. Starco FS-10 Stripper, manufactured by Diamond Chemical Co., Inc., Union Avenue & DuBois Street, East Rutherford, NJ 07073, or approved equal. 2. HMK R154 Stripper Stain remover, manufactured by ACI International, 3162 W Pembroke Road, Hallandale, FL 33009, 800-424-2465, or approved equal. 3. Aqua Mix Sealer & Coating Remover, manufactured by Custom Buildings Products, 10400 Pioneer Blvd., Unit 3, Santa Fe Springs, CA 90670, 800-272- 8786, or approved equal. 4. Enviro Klean Klean ’N Release Cleaner, manufactured by PROSOCO, 3741 Greenway Cir., Lawrence, KS 66046, 800-255-4255, or approved equal.

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2.04 TERRA COTTA TILE PROTECTIVE COATING MATERIALS

A. Sealers: penetrating liquid sealers for initial protection of terra cotta tile and grout, without harming or discoloring substrates. Test the following:

1. Stand Off Stone, Tile & Masonry Protector, manufactured by PROSOCO, 3741 Greenway Cir., Lawrence, KS 66046, 800-255-4255, or approved equal. 2. HMK S731 Silane Impregnator, manufactured by ACI International, 3162 W Pembroke Road, Hallandale, FL 33009, 800-424-2465, or approved equal.

B. Coatings: clear, renewable, strippable, non-slip coatings for protecting terra cotta tile flooring from heavy wear such as foot traffic.

1. Acrylic: HMK P326 Terracotta Care, manufactured by ACI International, 3162 W Pembroke Road, Hallandale, FL 33009, 800-424-2465, or approved equal. 2. Natural Wax: Classic Wax, manufactured by FLAG Paints Ltd., 8 Springfield Rd, Springfield Industrial Estate, Burnham on Crouch, Essex, CM80 8UA, UK, +44 (0) 1621 785 173 , or approved equal.

2.05 PAINT MATERIALS

A. General: Materials as specified herein for replication and inpainting of historic and decorative finishes.

1. Paint materials shall be top of the line (finest quality) products of one of the listed acceptable manufacturers. Colors shall contain pure, non- fading pigments finely ground in approved medium. They shall be mildew-proof. Paint shall not settle, cake, or thicken in container and shall have easy brushing properties.

B. Colors: Colors shall match historic colors of paints, transparent pigmented coatings, and varnishes as revealed and identified by Conservator in cleaned Reference Standards and as reproduced by Decorative Painter in mockups.

1. Colors are not limited to manufacturer’s standard colors. 2. Prime coats and undercoats shall be tinted to approximate shade of final coat. Each coat shall have a slight variation of color to distinguish it from preceding coat. 3. Prime coats, undercoats and finish coats shall be products of same manufacturer to assure compatibility.

C. Acceptable Manufacturers: Subject to compliance with requirements, provide products by one of the following unless otherwise specified.

1. For replication of decorative finishes and application of new acrylic finishes:

a. Benjamin Moore

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b. Pratt and Lambert c. Sherwin Williams d. Crescent Bronze e. Golden Artist Colors

2. For inpainting of historic decorative finishes, watercolor or acrylic color paint from one of the following manufacturers:

a. Windsor-Newton b. Golden Artist Colors c. Utrecht Manufacturing Corp. d. Maimeri Restoration Colors

3. For replication of historic lime finish:

a. KEIM Romanit Lime Paint and Wash b. Portola Paints & Glazes Lime Wash c. St. Astier Le Décor Lime Paint

4. For replication of stain finish at eaves:

a. Cabot Semi-Solid Acrylic Siding Stain #1100 Series

5. For priming and painting of historic architectural metal:

a. As indicated in Section 05 70 00, Historic Metal Restoration.

D. Pigments: Ronan Superfine Japan Colors, manufactured by T.J. Ronan Paint Corp., 749 East 135th St., Bronx, NY 10454, 718-292-1100, or approved equal.

E. Turpentine: Pure gum spirits of turpentine complying with ASTM D 13.

F. Solvents: Xylene, cellosolve acetate, and other such materials required to achieve desired effects.

G. Spackling Compound: Vinyl spackling compound designed to be sanded to a feather edge.

1. DAP vinyl spackling, manufactured by DAP Products, Inc., 2400 Boston Street Suite 200, Baltimore, MD, 21224, 888-327-8477, or approved equal.

H. Restoration Varnish/Adhesive/Consolidant for Paint: Acryloid B-72, available from Talas, 330 Morgan Ave, Brooklyn NY 11211, 212-219-0770; or approved equal as determined by the testing program.

I. Adhesive for Readhering Flaking Paint: BEVA D8 Dispersion in Water, Talas, 330 Morgan Ave, Brooklyn NY 11211, 212-219-0770; or approved equal as determined by the testing program.

J. Putty Filler: Epoxy resin thickened with appropriate fillers or other putty approved by Architect and Conservator.

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PART 3 – EXECUTION

3.01 GENERAL

A. Existing Conditions and Documents: Visit site to become familiar with conditions and surfaces on which decorative finishes are to be restored and examine Drawings and Specifications for materials of various surfaces and extent of interior decorative finishes restoration, and there from determine extent of work and type of cleaning, preparation, and decorative finish restoration and replication required for each respective surface as specified herein.

B. Cleaning, Restoration, and Replication of Decorative Finishes: All finishes work indicated in this Section shall be performed by Restoration Specialist as specified.

3.02 EXAMINATION

A. Inspect all surfaces to be restored before beginning interior decorative finishes restoration. Correct any defects in surfaces that might affect proper execution and stability of work of this Section.

B. If surfaces are not thoroughly dry or if they cannot be put in proper condition to receive decorative finishes by customary, normal methods, including sanding or spackling, notify Architect in writing.

C. Starting of work under this Section will be construed as acceptance of surfaces as being satisfactory. Contractor shall correct any defects to his work resulting from such accepted surfaces at his/her own expense.

3.03 PREPARATION OF SURFACES FOR FINISHES

A. Clean original finishes by removing dirt and soiling as specified herein.

B. Remove opaque paint overburden at cast stone ornament in areas specified on drawings, as specified herein.

C. Remove wax and clear coating buildup on historic terra cotta tile floors in areas specified on drawings, as specified herein.

3.04 PREPARATION OF MOCKUPS

A. Restoration Specialist shall prepare Mockups to match Reference Standards.

3.05 CLEANING EXISTING DECORATIVE FINISHES

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A. General: Clean existing decorative finishes to remove dirt and soiling as specified. Do not damage or deteriorate original finishes. Stop work and notify Architect and Conservator at once if any finish is damaged or deteriorated. Do not resume work until conditions and procedures have been corrected to avoid damaging finishes.

3.06 PREPARATION FOR NEW DECORATIVE FINISHES

A. Provide protection to adequately protect building elements, materials and finishes from damage or deterioration caused by work of this section.

B. Properly prepare all surfaces to receive paint and finishes including thorough cleaning of all grime, grease, dirt, loose material, and other substances that may interfere with proper adhesion.

1. Remove all blistered, peeling and loose paint to sound substrate by scraping and sanding. Scrape and sand only as minimally necessary. Take special care to ensure that none of the substrate is damaged. Contractor shall repair or replace damaged materials at direction of and to satisfaction of Architect at no additional cost to Owner. 2. Feather-edge painted surfaces at edges around chipped areas using care to avoid dishing areas from which paint is missing. 3. Fill in deep depressions in plaster surfaces using specified vinyl spackling compound. 4. Clean surfaces using specified detergent. 5. All surfaces to be painted shall be dry.

C. Remove hardware, hardware accessories, plates, machined surfaces, lighting fixtures, and similar items or protect such items in approved manner prior to surface preparation and treatment. Following completion of decorative finishing operations in each area, remove protection and have removed items reinstalled by workers skilled in trades involved.

3.07 PAINT REMOVAL

A. Provide protection to adequately protect building elements, materials and finishes from damage or deterioration caused by work of this section.

B. Apply paint stripper to designated surfaces according to the manufacturer’s instructions, maintaining a consistently thick layer. Do not allow paint stripper to dry on surface. Cover paint stripper with plastic or proprietary coated paper to prevent premature drying or evaporation. Allow paint stripper to dwell the optimum amount of time for softening or dissolving overpaint layers, as determined by testing.

C. Scrape away softened paint and stripper residue using plastic or metal scrapers, nylon scrub pads or brushes, wood skewers, or dental tools, as required to remove softened paint from surfaces, including crevices and recesses in ornament. Conduct scraping using methods and materials that do not gouge, cut into, or damage

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substrate.

D. If required, re-apply paint stripper to remove remaining paint deposits, following manufacturer’s instructions. Clear away remaining paint and paint stripper residue with water or denatured alcohol. Rinse area with clean water. Using pH papers with a 1-14 scale, check the treated surfaces to ensure that neutralization has been achieved. If surface pH is above 9, repeat water rinsing until the desired 7-9 pH is achieved.

E. If required, apply neutralizing rinse to substrate according to the manufacturer’s instructions, and then rinse area with clean water. Using pH papers with a 1-14 scale, check the treated surfaces to ensure that neutralization has been achieved. If surface pH is above 9, repeat neutralizing rinse and water rinsing until the desired 7- 9 pH is achieved.

3.08 REMOVAL OF CLEAR FLOOR FINISHES

A. Provide protection to adequately protect building elements, materials and finishes from damage or deterioration caused by work of this section.

B. Apply floor stripper to designated surfaces according to the manufacturer’s instructions, maintaining a consistently thick layer. Do not allow floor stripper to dry on surface. Allow floor stripper to dwell the optimum amount of time for softening or dissolving floor coatings, as determined by testing.

C. Scrape away softened floor finishes and residue using plastic scrapers or nylon scrub pads or brushes, as required to remove softened coatings from surfaces. If approved in mock-ups, a rotary floor machine equipped with a nylon buffing pad may be used, but only if the Restoration Specialist demonstrates that machine scrubbing will not result in excessive abrasion or loss of tile surfaces.

D. If required, re-apply floor stripper to strip away remaining coating deposits, following manufacturer’s instructions. Clear away remaining residue according to the manufacturer’s instructions.

E. Allow the tile floor surface to dry completely before proceeding with restoration work.

3.09 FINISH APPLICATION: GENERAL

A. Do not execute painting or finishing when air is dust-laden or when weather and temperature conditions are unsuitable.

B. Apply ornamental finishes (decorative painting, glazing, and coating) only after painting of flat plaster surfaces has been completed.

C. Ensure that paint and finishing materials are free from skins, lumps, and foreign matter when used and that pigments, fillers, and other materials are kept well stirred during application.

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D. Execute work in a workmanlike manner using skilled artisans. Materials shall be evenly spread, smoothly flowed on, and free from holidays, runs, and sags. Finish surfaces shall be uniform.

E. Brush-apply all paint, unless otherwise noted. Brush each coat onto surfaces in an even film with parallel brush strokes.

F. Do not apply paint until preceding coat is thoroughly dry and hard. In general and unless otherwise specified or recommended by manufacturer, allow paints to dry at least 48 hours between coats.

G. Remove all imperfections in paint coating before applying subsequent coat.

3.12 CLEANING AND PROTECTION

A. Upon completion of interior decorative finishes restoration work, remove all misplaced paint spots or stains from adjacent surfaces. Leave entire project site clean.

B. Provide protection and other precautions required through remainder of construction period to ensure that decorative painting will be without damage at time of Substantial Completion.

END OF SECTION

09 91 100 - 14 GEORGE FINK STUDIO HISTORIC PAINTED FINISHES SCHEDULE

FINISH TRANSLUCENT NO. BASE / ACCENT PAINT GLAZE LOCATION(S)

F-1 lt. brown-yellow 2.5Y 8/4 dk. brown 2.5Y 2/2 OBSERVATION SPACE plaster walls tan ~10YR 8/4 OBSERVATION SPACE cast stone F-2 (color of cast stone) (darker) dk. brown 2.5Y 2/2 fireplace ornament tan 10YR 8/2 OBSERVATION SPACE cast stone F-3 (color of cast stone) dk. beige 2.5Y 5/2 fireplace flat blocks ~7.5GY 5/4 OBSERVATION SPACE plaster ceiling F-4 grey-green (darker) n/a coffer fields ~10YR 6/6 OBSERVATION SPACE plaster ceiling F-5 tan (lighter) dk. brown 10YR 2/1 beam bracket grotesques ~2.5Y 8.5/4 ORIG. RECEPTION ROOM plaster F-6 lt. brown-yellow (lighter) amber 7.5YR 4/4 walls and ceiling coffer fields, HALL plaster ceiling panel fields ORIG. RECEPTION ROOM plaster F-7 gold metallic n/a dk. brown 2.5Y 2/2 ceiling rosettes and frieze borders ORIG. RECEPTION ROOM plaster F-8 orange 3.75 YR 5/12 n/a frieze recessed cruciform fields ORIG. RECEPTION ROOM plaster F-9 green-blue 5BG 5/4 n/a frieze recessed fields ~2.5Y 8.5/4 F-10 lt. brown-yellow (less saturated) dk. brown 2.5Y 2/2 HALL plaster walls tan 10YR 7/4 HALL cast stone columns- raised F-11 (color of cast stone) n/a ornament (glaze wiped off) tan 10YR 7/4 golden HALL cast stone columns- recessed F-12 (color of cast stone) brown 7.5YR 6/6 flutes lt. brown-yellow 2.5Y 8/4 F-13 pale grey accent N 6.25/ dk. brown 2.5Y 2/2 STAIR plaster wall recesses STAIR plaster wall raised areas (pale F-14 lt. brown-yellow 2.5Y 8/4 dk. brown 2.5Y 2/2 grey accent paint wiped off)

F-15 pale brown 10YR 5/2 n/a STAIR columns ~5GY 7/4 ND F-16 pale green (less saturated) n/a 2 FLOOR OFFICE plaster walls ~2.5Y 8.5/4 pale tan ~7.5YR 7/2 2ND FLOOR OFFICE plaster ceiling F-17 lt. brown-yellow (less saturated) (less saturated) panel fields EXTERIOR plaster / stucco (possible F-18 brown-white 5Y 8.5/1 n/a limewash) EXTERIOR cast stone, except F-19 dark tan 10YR 6/4 n/a gargoyle (possible limewash) EXTERIOR cast stone gargoyle F-20 brown-pink 10R 5/4 n/a (possible limewash)

F-21 dk. red-brown 5R 2/2 n/a EXTERIOR wood garden gate (to be confirmed) GEORGE FINK STUDIO HISTORIC PAINTED FINISHES SCHEDULE

FINISH TRANSLUCENT NO. BASE / ACCENT PAINT GLAZE LOCATION(S) EXTERIOR iron garden gate brace, F-22 black N 1.25/ n/a also eave brackets and east portal balcony (to be confirmed) EXTERIOR historic wood windows at F-23 TBD n/a east elevation, also portal and balcony doors

ST-1 brown 10YR 2/1 n/a ND OBSERVATION SPACE, HALL, 2 ND ST-2 white N 8.5/ n/a FLOOR OFFICE, and 2 FLOOR LANDING wood ceiling beam stencils,

also wood doors THROUGHOUT black N 1.25/ n/a ST-3 Additional colors may exist, TBD ST-4 red 10R 3/8 n/a

ST-5 yellow 5Y 7/8 n/a These finishes are to be conserved, not restored. ST-6 orange 3.75 YR 5/12 n/a ~10GY 5/4 ST-7 green (darker) n/a ~2.5PB 5/8 ST-8 bright blue (darker) n/a