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<br />075400.6 – THERMOPLASTIC SINGLE-PLY ROOF SYSTEM <br /> <br />Project Manual for Whitted Building Roof Replacement <br />Orange County, Hillsborough, NC <br />Prepared by Atlas Engineering, Inc., 551-A Pylon Drive – Raleigh, NC 27606 <br />May 2022 <br /> <br /> <br />1. Acceptable manufacturers and products include: <br />a. Sarnafil (G410), 60 MIL minimum <br />b. Fibertite (SM), 45 MIL <br />c. IB Roof Systems, 60 MIL minimum <br /> <br />2. The listed roof membrane manufacturers are provided as examples of manufacturers and <br />products that typically meet the requirements of these specifications. The listed <br />manufacturers are used to denote the quality standard of product desired and are acceptable <br />only if they are able to meet the requirements of the specifications. Requests for <br />substitution of another manufacturer or product must be submitted in writing to the <br />Engineer for approval or disapproval no less than ten (10) days prior to the bid date. <br />Submitted requests must include sufficient documentation to indicate that manufacturer <br />and/or product submitted meet the requirements of these specifications and are equivalent <br />to the quality of those listed in accordance with Section 016000. A minimum membrane <br />thickness of 80-mils is required for all membrane systems requested as substitutions. <br />Acceptance of requested substitutions will be solely at the discretion of the Designer. <br /> <br />3. The membrane properties shall meet or exceed the following minimum values: <br /> PVC (Fiberglass Reinforced) <br />a. Tensile Strength ASTM D751 80 lbf <br />b. Elongation at break ASTM D751 250%MD and 220%CMD <br />c. Linear Dimensional Stability ASTM D1204 .1% <br />d. Tear Strength ASTM D1004 17.5 lbf <br />e. Weight Change after immersion in water ASTM D750 2% <br />f. Static Puncture Resistance ASTM D5602 33 lbf <br />h. Dynamic Puncture Resistance, 7.3 ft-lbf per D5635 Pass <br />i. Thickness over Scrim 27 mil <br /> <br />PVC (Polyester Reinforced) <br />a. Breaking Strength ASTM D751 370x308 lbf <br />b. Tensile Strength ASTM D751 305 psi <br />c. Elongation at break ASTM D751 34% x 29% <br />d. Linear Dimensional Stability ASTM D1204 .2 <br />e. Tear Strength ASTM D751 58x72 lbf <br />ASTM D1004 48 lbf <br />f. Weight Change after immersion in water ASTM D750 2% <br />g. Static Puncture Resistance ASTM D5602 33 lbf <br />h. Dynamic Puncture Resistance, 7.3 ft-lbf per D5635 Pass <br />i. Thickness over Scrim 27 mil <br /> KEE <br />a. Thickness over Scrim .37 mm <br />b. Breaking Strength ASTM D751 Proc. B 350 lbf <br />c. Elongation at Break ASTM D751 18% <br />d. Tearing Strength ASTM D751 Proc. B 100 lbf <br />e. Static Puncture Resistance ASTM D5602 99 lbf <br />DocuSign Envelope ID: 89558C18-938A-4BFF-B14A-A2214E8AA5DD