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HomeMy WebLinkAbout07-7100-Roof-Specialties-(Part-of-FSB-07-2000)_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ROOF SPECIALTIES 07 7100 - 1 SECTION 07 7100 ROOF SPECIALTIES (Part of Filed Sub-Bid Section 07 0002 - Roofing And Flashing) PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Work Included: Provide labor, materials and equipment necessary to complete the work of this Section, including but not limited to the following: 1. Copings. 2. Roof-edge specialties. 3. Other items indicated on Drawings as Work of this Section. B. Related Requirements: 1. Section 01 3113.23 “Air Barrier System Coordination” for administrative and procedural requirements for coordination between the trades, and for the proper scheduling and sequencing of the work to produce an airtight building enclosure. 2. Section 01 8113.23 “Sustainable Design Requirements” for general requirements and procedures for compliance with certain USGBC LEED prerequisites and credits. 3. Section 01 9113 “General Commissioning Requirements." 4. Section 01 9119 “Facility Shell Commissioning" for commissioning process requirements for building envelope commissioning. 5. Section 06 1000 "Rough Carpentry" for wood nailers, curbs, and blocking. 6. Section 07 5419 “Polyvinyl-Chloride (PVC) Roofing” for single-ply elastomeric roofing system. 7. Section 07 6200 "Sheet Metal Flashing and Trim" for custom- and site-fabricated sheet metal flashing and trim. 8. Section 07 7129 “Manufactured Roof Expansion Joints.” 9. Section 07 7200 "Roof Accessories" for hatch-type heat and smoke vents, elevator penthouse ventilators with operable dampers, roof drain markers, and other manufactured roof accessory units. 10. Section 07 9200 "Joint Sealants" for field-applied sealants between roof specialties and adjacent materials. C. Preinstallation Conference: Conduct conference at Project site. 1. Meet with Owner, Architect, Owner's insurer if applicable, roofing-system testing and inspecting agency representative, roofing Installer, roofing-system manufacturer's representative, Installer, structural-support Installer, and installers whose work interfaces with or affects roof specialties, including installers of roofing materials and accessories. 2. Examine substrate conditions for compliance with requirements, including flatness and attachment to structural members. 3. Review special roof details, roof drainage, and condition of other construction that will affect roof specialties. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ROOF SPECIALTIES 07 7100 - 2 1.3 ACTION SUBMITTALS A. Make Submittals in accordance with Section 01 3300 “Submittal Procedures.” B. Product Data: For each type of product. 1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes. C. Sustainable Design Submittals: 1. Recycled Content: Provide manufacturers’ product documentation that includes recycled content claims for the products contributing towards compliance. Claims must conform to the definition in ISO 14021-1999, Environmental Labels and Declarations, Self-Declared Environmental Claims. a. Complete "LEED Materials Documentation Sheet" with MRc3 Option 2 information for products with recycled content installed in the building. D. Shop Drawings: For roof specialties. 1. Include plans, elevations, expansion-joint locations, keyed details, and attachments to other work. Distinguish between plant- and field-assembled work. 2. Include details for expansion and contraction; locations of expansion joints, including direction of expansion and contraction. 3. Indicate profile and pattern of seams and layout of fasteners, cleats, clips, and other attachments. 4. Detail termination points and assemblies, including fixed points. 5. Include details of special conditions. E. Samples for Verification: 1. Include Samples of each type of roof specialty to verify finish and color selection, in manufacturer's standard sizes. 2. Include copings and roof-edge specialties made from 12-inch lengths of full-size components in specified material, and including fasteners, cover joints, accessories, and attachments. 1.4 INFORMATIONAL SUBMITTALS A. Qualification Data: For manufacturer. B. Product Certificates: For each type of roof specialty. C. Product Test Reports: For copings and roof-edge flashings, for tests performed by a qualified testing agency. D. Sample Warranty: For manufacturer's special warranty. 1.5 CLOSEOUT SUBMITTALS A. Maintenance Data: For roofing specialties to include in maintenance manuals. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ROOF SPECIALTIES 07 7100 - 3 1.6 QUALITY ASSURANCE A. Manufacturer Qualifications: A qualified manufacturer offering products meeting requirements that are FM Approvals listed for specified class. B. Source Limitations: Obtain roof specialties approved by manufacturer providing roofing-system warranty specified in Section 07 5419 “Polyvinyl-Chloride (PVC) Roofing.” 1.7 DELIVERY, STORAGE, AND HANDLING A. Do not store roof specialties in contact with other materials that might cause staining, denting, or other surface damage. Store roof specialties away from uncured concrete and masonry. B. Protect strippable protective covering on roof specialties from exposure to sunlight and high humidity, except to extent necessary for the period of roof-specialty installation. 1.8 FIELD CONDITIONS A. Field Measurements: Verify profiles and tolerances of roof-specialty substrates by field measurements before fabrication, and indicate measurements on Shop Drawings. B. Coordination: Coordinate roof specialties with flashing, trim, and construction of parapets, roof deck, roof and wall panels, and other adjoining work to provide a leakproof, secure, and noncorrosive installation. 1.9 WARRANTY A. Special Warranty: Manufacturer's standard form in which manufacturer warrantees that the coping and fascia systems, when installed per manufacturer’s instructions, will not blow off, leak, or cause membrane failure, even in wind conditions up to 155 mph, or the manufacturer shall at their option repair or replace their materials. 1. Warranty Period: 25 years from date of Substantial Completion. B. Roofing-System Warranty: Roof specialties are included in warranty provisions in Section 07 5419 “Polyvinyl-Chloride (PVC) Roofing." C. Special Warranty on Painted Finishes: Manufacturer agrees to repair finish or replace roof specialties that show evidence of deterioration of factory-applied finishes within specified warranty period. 1. Fluoropolymer Finish: Deterioration includes, but is not limited to, the following: a. Color fading more than 5 Delta E units when tested according to ASTM D2244. b. Chalking in excess of a No. 8 rating when tested according to ASTM D4214. c. Cracking, checking, peeling, or failure of paint to adhere to bare metal. 2. Finish Warranty Period: 20 years from date of Substantial Completion. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ROOF SPECIALTIES 07 7100 - 4 PART 2 - PRODUCTS 2.1 LEED REQUIREMENTS A. Recycled Content: Provide products with the maximum recycled content possible. Minimum recycled content 20 percent. 2.2 PERFORMANCE REQUIREMENTS A. General Performance: Roof specialties shall withstand exposure to weather and resist thermally induced movement without failure, rattling, leaking, or fastener disengagement due to defective manufacture, fabrication, installation, or other defects in construction. B. FM Approvals' Listing: Manufacture and install copings and roof-edge specialties that are listed in FM Approvals' "RoofNav" and approved for windstorm classification, Class 1-120. Identify materials with FM Approvals' markings. C. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes to prevent buckling, opening of joints, hole elongation, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Provide clips that resist rotation and avoid shear stress as a result of thermal movements. Base calculations on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss. 1. Temperature Change (Range): 120 deg F, ambient; 180 deg F, material surfaces. 2.3 COPINGS A. Metal Copings: Manufactured coping system consisting of metal coping cap in section lengths not exceeding 10 feet, concealed anchorage; with corner units, end cap units, and concealed splice plates with finish matching coping caps. 1. Basis-of-Design Product: Subject to compliance with requirements, provide PermaSnap Premier Plus Coping by OMG, Inc. or a comparable product by one of the following or equal: a. ATAS International, Inc. b. Metal-Era, Inc. c. Perimeter Systems; a division of SAF. d. Petersen Aluminum Corporation. 2. Snap-On Coping Cap: a. Material: 0.063 inch thick aluminum. b. Formed Lengths: 10 feet. c. Face Dimension: Indicated on the Drawings. d. Back Dimension: Indicated on the Drawings. e. Finish: Three-coat fluoropolymer. 1) Color: Custom color as selected by Architect. 3. Intermittent Clips: a. Material: 16-gauge galvanized steel. b. Width: 12 inches. c. Fastener Holes: Slotted. 4. Springs: Steel, 6 inches wide. 5. Concealed Splices: a. Material: Same as snap-on coping cap. b. Finish and Color: Same as snap-on coping cap. c. Width: 6 inches. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ROOF SPECIALTIES 07 7100 - 5 6. Fasteners: a. Universal Fasteners: E-coated, corrosion-resistant. b. Suitable for intended substrate. c. Provided by coping system manufacturer. d. No exposed fasteners. 7. Factory-Fabricated Accessories: a. Miters. b. End caps. c. End terms. d. Material, Finish, and Color: Same as snap-on coping cap. e. Fabrication: Welded or metal-Lok. 2.4 ROOF-EDGE SPECIALTIES A. Roof-Edge Fascia: Manufactured, two-piece, roof-edge fascia consisting of snap-on metal fascia cover in section lengths not exceeding 10 feet and a continuous metal receiver with integral drip-edge cleat to engage fascia cover and secure single-ply roof membrane. Provide matching corner units. 1. Basis-of-Design Product: Subject to compliance with requirements, provide TerminEdge Fascia System by OMG, Inc. or a comparable product by one of the following or equal: a. ATAS International, Inc. b. Metal-Era, Inc. c. Perimeter Systems; a division of SAF. d. Petersen Aluminum Corporation. 2. Face Size: 12.75 inches. 3. Formed Retainer: a. Material: 20-gauge galvanized steel. b. Formed Lengths: 10 feet. 4. Exterior Fascia Covers: a. Material: 0.063-inch aluminum. b. Formed Lengths: 10 feet. c. Finish: Three-coat fluoropolymer. 1) Color: Custom color as selected by Architect. 5. Concealed Joint Splices: a. Splice Plates: 0.040-inch aluminum. b. Finish and Color: Same as exterior fascia covers. c. Width: 4 inches. 6. Fasteners: a. E-coated, corrosion-resistant fasteners. b. Suitable for intended substrate. c. Provided by fascia system manufacturer. 7. Sealant: a. Non-hardening waterproof sealant. b. Compatible with fascia system and membrane roofing. c. Provided by membrane roofing manufacturer. 8. Accessories: a. Material, Finish, and Color: Same as exterior fascia covers. b. Miters: Outside and inside. c. End Caps: Left and right. d. End Terms: Left and right. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ROOF SPECIALTIES 07 7100 - 6 2.5 MATERIALS A. Zinc-Coated (Galvanized) Steel Sheet: ASTM A653/A653M, G90 coating designation. B. Aluminum Sheet: ASTM B209, alloy as standard with manufacturer for finish required, with temper to suit forming operations and performance required. 2.6 MISCELLANEOUS MATERIALS A. Fasteners: Manufacturer's recommended fasteners, suitable for application and designed to meet performance requirements. Furnish the following unless otherwise indicated: 1. Exposed Penetrating Fasteners: Gasketed screws with hex washer heads matching color of sheet metal. 2. Fasteners for Aluminum: Aluminum or Series 300 stainless steel. 3. Fasteners for Zinc-Coated (Galvanized) Steel Sheet: Series 300 stainless steel or hot- dip zinc-coated steel according to ASTM A153/A153M or ASTM F2329. B. Elastomeric Sealant: ASTM C920, elastomeric silicone polymer sealant of type, grade, class, and use classifications required by roofing-specialty manufacturer for each application. C. Butyl Sealant: ASTM C1311, single-component, solvent-release butyl rubber sealant; polyisobutylene plasticized; heavy bodied for hooked-type joints with limited movement. D. Bituminous Coating: Cold-applied asphalt emulsion complying with ASTM D1187/D1187M. 2.7 FINISHES A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes. B. Protect mechanical and painted finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipping. C. Appearance of Finished Work: Noticeable variations in same piece are unacceptable. Variations in appearance of adjoining components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast. D. Coil-Coated Aluminum Sheet Finishes: 1. High-Performance Organic Finish: Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions. a. Three-Coat Fluoropolymer: AAMA 2605. Fluoropolymer finish containing not less than 70 percent polyvinylidene fluoride (PVDF) resin by weight in both color coat and clear topcoat. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions for seacoast and severe environments. b. Concealed Surface Finish: Apply pretreatment and manufacturer's standard acrylic or polyester backer finish consisting of prime coat and wash coat with a minimum total dry film thickness of 0.5 mil. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ROOF SPECIALTIES 07 7100 - 7 PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, areas, and conditions, with Installer present, to verify actual locations, dimensions, and other conditions affecting performance of the Work. B. Examine walls, roof edges, and parapets for suitable conditions for roof specialties. C. Verify that substrate is sound, dry, smooth, clean, sloped for drainage where applicable, and securely anchored. D. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 INSTALLATION OF UNDERLAYMENT A. Slip Sheet: Install with tape or adhesive for temporary anchorage to minimize use of mechanical fasteners under roof specialties. Apply in shingle fashion to shed water, with lapped joints of not less than 2 inches. 3.3 INSTALLATION, GENERAL A. Install roof specialties according to manufacturer's written instructions. Anchor roof specialties securely in place, with provisions for thermal and structural movement. Use fasteners, solder, protective coatings, separators, underlayments, sealants, and other miscellaneous items as required to complete roof-specialty systems. 1. Install roof specialties level, plumb, true to line and elevation; with limited oil-canning and without warping, jogs in alignment, buckling, or tool marks. 2. Provide uniform, neat seams with minimum exposure of solder and sealant. 3. Install roof specialties to fit substrates and to result in weathertight performance. Verify shapes and dimensions of surfaces to be covered before manufacture. 4. Torch cutting of roof specialties is not permitted. 5. Do not use graphite pencils to mark metal surfaces. B. Metal Protection: Protect metals against galvanic action by separating dissimilar metals from contact with each other or with corrosive substrates by painting contact surfaces with bituminous coating or by other permanent separation as recommended by manufacturer. C. Expansion Provisions: Allow for thermal expansion of exposed roof specialties. 1. Space movement joints at a maximum of 12 feet with no joints within 18 inches of corners or intersections unless otherwise indicated on Drawings. 2. When ambient temperature at time of installation is between 40 and 70 deg F, set joint members for 50 percent movement each way. Adjust setting proportionately for installation at higher ambient temperatures. D. Fastener Sizes: Use fasteners of sizes that penetrate wood blocking or sheathing not less than 1-1/4 inches for nails and not less than 3/4 inch for wood screws. E. Seal concealed joints with butyl sealant as required by roofing-specialty manufacturer. F. Seal joints as required for weathertight construction. Place sealant to be completely concealed in joint. Do not install sealants at temperatures below 40 deg F. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 ROOF SPECIALTIES 07 7100 - 8 3.4 INSTALLATION OF COPINGS A. Install cleats, anchor plates, and other anchoring and attachment accessories and devices with concealed fasteners. B. Anchor copings with manufacturer's required devices, fasteners, and fastener spacing to meet performance requirements. 1. Interlock face and back leg drip edges of snap-on coping cap into cleated anchor plates anchored to substrate at manufacturer's required spacing that meets performance requirements. 3.5 INSTALLATION OF ROOF-EDGE SPECIALITIES A. Install cleats, cants, and other anchoring and attachment accessories and devices with concealed fasteners. B. Anchor roof edgings with manufacturer's required devices, fasteners, and fastener spacing to meet performance requirements. 3.6 CLEANING AND PROTECTION A. Remove temporary protective coverings and strippable films as roof specialties are installed. On completion of installation, clean finished surfaces, including removing unused fasteners, metal filings, pop rivet stems, and pieces of flashing. Maintain roof specialties in a clean condition during construction. B. Replace roof specialties that have been damaged or that cannot be successfully repaired by finish touchup or similar minor repair procedures. END OF SECTION