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September 17, 2013 WELLS FARGO AGRIBOARD PANEL REPAIR 501-2717-033 <br />ZEPHYR COMMONS <br />B. Fasteners: Factory -coated steel fasteners and metal or plastic plates complying <br />with corrosion -resistance provisions in FM Approvals 4470, designed for <br />fastening roof insulation and cover boards to substrate, and acceptable to roofing <br />system manufacturer. <br />C. Full -Spread Applied Insulation Adhesive: Insulation manufacturer's <br />recommended spray -applied, low-rise, two -component urethane adhesive <br />formulated to attach roof insulation to substrate or to another insulation layer. <br />D. Cover Board: ASTM C 1177/C 1177M, glass -mat, water-resistant gypsum <br />substrate, 1/2 inch (13 mm), factory primed. <br />1. Products: Subject to compliance with requirements, provide one of the <br />following available products that may be incorporated into the Work <br />include, but are not limited to, the following: <br />a. Georgia-Pacific Corporation; Dens Deck Prime. <br />b. Approved equivalent product acceptable to membrane <br />manufacturer. <br />2.5 ASPHALT MATERIALS <br />A. Roofing Asphalt: ASTM D 312, Type III or Type IV. <br />PART 3 - EXECUTION <br />3.1 EXAMINATION <br />A. Examine substrates, areas, and conditions, with Installer present, for compliance <br />with the following requirements and other conditions affecting performance of <br />roofing system: <br />1. Verify that roof openings and penetrations are in place and curbs are set <br />and braced and that roof drain bodies are securely clamped in place. <br />2. Verify that wood blocking, curbs, and nailers are securely anchored to <br />roof deck at penetrations and terminations and that nailers match <br />thicknesses of insulation. <br />B. Proceed with installation only after unsatisfactory conditions have been <br />corrected. <br />3.2 PREPARATION <br />A. Clean substrate of dust, debris, moisture, and other substances detrimental to <br />roofing installation according to roofing system manufacturer's written <br />instructions. Remove sharp projections. <br />THERMOPLASTIC POLYOLEFIN (TPO) ROOFING 07543 - 7 <br />