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DocuSign Envelope ID: 313DA256 -1EDE- 4396- A716- 4C53B809027E <br />JERRY M. PASSMORE CENTER ADDITION AND RENOVATION <br />HILLSBOROUGH, NORTH CAROLINA <br />1. Verify that roof openings and penetrations are in place and set and braced and that roof <br />drains are securely clamped in place. <br />2. Verify that wood blocking, curbs, and nailers are securely anchored to roof deck at <br />penetrations and terminations and that nailers match thicknesses of insulation. <br />3. Verify that surface plane flatness and fastening of steel roof deck complies with <br />requirements in Division 5 Section "Steel Deck." <br />4. Proceed with installation only after unsatisfactory conditions have been corrected. <br />3.2 PREPARATION <br />A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation <br />according to roofing system manufacturer's written instructions. Remove sharp projections. <br />B. Prevent materials from entering and clogging roof drains and conductors and from spilling or <br />migrating onto surfaces of other construction. Remove roof -drain plugs when no work is taking <br />place or when rain is forecast. <br />C. Complete terminations and base flashings and provide temporary seals to prevent water from <br />entering completed sections of roofing system at the end of the workday or when rain is <br />forecast. Remove and discard temporary seals before beginning work on adjoining roofing. <br />3.3 VAPOR - RETARDER INSTALLATION <br />A. Loosely lay polyethylene -film vapor retarder in a single layer over area to receive vapor <br />retarder, side and end lapping each sheet a minimum of 2 inches (50 mm) and 6 inches (150 <br />mm), respectively. <br />Seal side and end laps with tape. <br />B. Completely seal vapor retarder at terminations, obstructions, and penetrations to prevent air <br />movement into membrane roofing system. <br />fc ! Nf.Yi1 r1:" N 0 [4l911►f. 1I_KV .,W4 0 <br />A. Coordinate installing membrane roofing system components so insulation is not exposed to <br />precipitation or left exposed at the end of the workday. <br />B. Comply with membrane roofing system manufacturer's written instructions for installing roof <br />insulation. <br />C. Install tapered insulation under area of roofing to conform to slopes indicated. <br />D. Install one or more layers of insulation under area of roofing to achieve required thickness. <br />Where overall insulation thickness is 2 inches (50 mm) or greater, install 2 or more layers with <br />joints of each succeeding layer staggered from joints of previous layer a minimum of 6 inches <br />(150 mm) in each direction. <br />BALLASTED EPDM MEMBRANE ROOFING 075310-7 <br />