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HomeMy WebLinkAbout07-7129-Manufactured-Roof-Expansion-Joints-(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 MANUFACTURED ROOF EXPANSION JOINTS 07 7129 - SECTION 07 7129 MANUFACTURED ROOF EXPANSION JOINTS (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. Section includes aluminum roof expansion joints. 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 9113 “General Commissioning Requirements." 3. Section 01 9119 “Facility Shell Commissioning" for commissioning process requirements for building envelope commissioning. 4. Section 06 1000 "Rough Carpentry" for wooden curbs or cants for mounting roof expansion joints. 5. Section 07 5419 “Polyvinyl-Chloride (PVC) Roofing” for single-ply elastomeric roofing system. 6. Section 07 6200 "Sheet Metal Flashing and Trim" for shop- and field-fabricated sheet metal expansion-joint systems, flashing, and other sheet metal items. 7. Section 07 7100 “Roof Specialties” for manufactured copings and roof-edge specialties. 8. 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. 1.3 PREINSTALLATION MEETINGS A. Preinstallation Conference: Conduct conference at Project site. 1.4 ACTION SUBMITTALS A. Make Submittals in accordance with Section 01 3300 “Submittal Procedures.” B. Product Data: For each type of product. C. Shop Drawings: For roof expansion joints. 1. Include plans, elevations, sections, and attachment details. 2. Include details of splices, intersections, transitions, fittings, method of field assembly, and location and size of each field splice. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 MANUFACTURED ROOF EXPANSION JOINTS 07 7129 - 3. Provide isometric drawings of intersections, terminations, changes in joint direction or planes, and transition to other expansion joint systems depicting how components interconnect with each other and adjacent construction to allow movement and achieve waterproof continuity. D. Samples: For each exposed product and for each color specified, 6 inches in size. 1.5 INFORMATIONAL SUBMITTALS A. Qualification Data: For Installer. B. Sample Warranties: For special warranties. 1.6 QUALITY ASSURANCE A. Installer Qualifications: Installer of roofing membrane. 1.7 WARRANTY A. Special Warranty: Manufacturer and Installer agree to repair or replace roof expansion joints and components that leak, deteriorate beyond normal weathering, or otherwise fail in materials or workmanship within specified warranty period. 1. Warranty Period: Two years from date of Substantial Completion. B. Special Warranty on Painted Finishes: Manufacturer's standard form in which manufacturer agrees to repair finish or replace roof expansion joints 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 five Hunter units when tested according to ASTM D 2244. b. Chalking in excess of a No. 8 rating when tested according to ASTM D 4214. c. Cracking, checking, peeling, or failure of paint to adhere to bare metal. 2. Warranty Period: 20 years from date of Substantial Completion. PART 2 - PRODUCTS 2.1 PERFORMANCE REQUIREMENTS A. 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 seals, failure of connections, and other detrimental effects. 1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces. 2.2 ALUMINUM ROOF EXPANSION JOINTS A. Aluminum Roof Expansion Joint: Factory-fabricated, continuous, waterproof, joint cover; consisting of a formed or extruded metal cover secured to extruded aluminum frames, with water-resistant gasketing between cover and frames, and with provision for securing assembly to substrate and sealing assembly to roofing membrane or flashing. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 MANUFACTURED ROOF EXPANSION JOINTS 07 7129 - 1. Basis-of-Design Product: Subject to compliance with requirements, provide Construction Specialties Model RJT-200 and Model RJTW-200 by C/S Group, or comparable product by one of the following: a. Architectural Art Manufacturing Inc.; a division of Pittcon Architectural Metals, LLC. b. Balco, Inc. c. MM Systems Corporation. d. Nystrom Building Products. e. Watson Bowman Acme Corp. 2. Joint Movement Capability: Plus and minus 50 percent of joint size. 3. Frame Members: Extruded aluminum configured for curbs as indicated; with exposed finish matching cover. 4. Cover: Extruded aluminum; thickness as recommended by manufacturer, but not less than 0.090 inch thick. 5. Centering Devices: Centering bars. 6. Corner, Intersection, and Transition Units: Provide factory-fabricated units for corner and joint intersections and horizontal and vertical transitions including those to other building expansion joints. 7. Accessories: Provide splicing units, adhesives, and other components as recommended by roof-expansion-joint manufacturer for complete installation. 8. Secondary Seal: Continuous, waterproof membrane within joint and attached to substrate on sides of joint below the cover. a. Thermal Insulation: Fill space above secondary seal with mineral-fiber blanket insulation; with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per ASTM E 84. B. Materials: 1. Aluminum: ASTM B 209 for sheet and plate, ASTM B 221 for extrusions; alloy as standard with manufacturer for finish required, with temper to suit forming operations and performance required. a. Apply manufacturer's standard protective coating on aluminum surfaces to be placed in contact with cementitious or preservative-treated wood materials. b. High-Performance Organic Finish: Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions. 1) Three-Coat Fluoropolymer: System consisting of primer, fluoropolymer color coat, and clear fluoropolymer topcoat, with both color coat and clear topcoat containing not less than 70 percent PVDF resin by weight. c. Aluminum Finish Color: As selected by Architect from manufacturer's full range. 2.3 MISCELLANEOUS MATERIALS A. Adhesives: As recommended by roof-expansion-joint manufacturer. B. Fasteners: Manufacturer's recommended fasteners, suitable for application and designed to withstand design loads. 1. Exposed Fasteners: Gasketed. Use screws with hex washer heads matching color of material being fastened. C. Mineral-Fiber Blanket: ASTM C 665. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 MANUFACTURED ROOF EXPANSION JOINTS 07 7129 - PART 3 - EXECUTION 3.1 EXAMINATION A. Examine joint openings, substrates, and expansion-control joint systems that interface with roof expansion joints, for suitable conditions where roof expansion joints will be installed. B. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 INSTALLATION A. Comply with manufacturer's written instructions for handling and installing roof expansion joints. 1. Anchor roof expansion joints securely in place, with provisions for required movement. Use fasteners, protective coatings, sealants, and miscellaneous items as required to complete roof expansion joints. 2. Install roof expansion joints true to line and elevation; and without warping, jogs in alignment, buckling, or tool marks. 3. Provide for linear thermal expansion of roof expansion joint materials. 4. Provide uniform profile of roof expansion joint throughout its length; do not stretch or squeeze membranes. 5. Provide uniform, neat seams. 6. Install roof expansion joints to fit substrates and to result in watertight performance. B. Coordinate installation and transition of roofing system component serving as an air barrier with roof expansion joint and requirements of Section 01 3113.23 “Air Barrier System Coordination.” C. Directional Changes: Install factory-fabricated units at directional changes to provide continuous, uninterrupted, and watertight joints. D. Transitions to Other Expansion-Control Joint Assemblies: Coordinate installation of roof expansion joints with other exterior expansion-control joint assemblies specified in Section 07 9513.16 "Exterior Expansion Joint Cover Assemblies" to result in watertight performance. Install factory-fabricated units at transitions between roof expansion joints and exterior expansion-control joint systems. E. Splices: Splice roof expansion joints to provide continuous, uninterrupted, and waterproof joints. 1. Install waterproof splices and prefabricated end dams to prevent leakage of secondary- seal membrane. F. 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. END OF SECTION