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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 />SECTION 075423 - THERMOPLASTIC POLYOLEFIN (TPO) ROOFING (Alternate G -2) (Addendum #1) <br />PART 1 - GENERAL <br />1.1 RELATED DOCUMENTS <br />A. Drawings and general provisions of the Contract, including General and Supplementary <br />Conditions and Division 01 Specification Sections, apply to this Section. <br />1.2 SUMMARY <br />A. Section Includes: <br />1. Mechanically fastened TPO membrane roofing system. <br />2. Vapor retarder. <br />3. Roof insulation. <br />B. Related Sections: <br />1. Division 06 Section "Miscellaneous Rough Carpentry" for wood nailers, curbs, and <br />blocking. <br />2. Division 07 Section "Thermal Insulation" for insulation beneath the roof deck. <br />3. Division 07 Section "Sheet Metal Flashing and Trim" for metal roof penetration <br />flashings, flashings, and counterflashings. <br />4. Division 07 Section "Joint Sealants" for joint sealants, joint fillers, and joint preparation. <br />5. Division 22 Section "Storm Drainage Piping Specialties" for roof drains. <br />1.3 DEFINITIONS <br />A. TPO: Thermoplastic polyolefin. <br />B. Roofing Terminology: See ASTM D 1079 and glossary in NRCA's "The NRCA Roofing and <br />Waterproofing Manual" for definitions of terms related to roofing work in this Section. <br />1.4 PERFORMANCE REQUIREMENTS <br />A. General Performance: Installed membrane roofing and base flashings shall withstand specified <br />uplift pressures, thermally induced movement, and exposure to weather without failure due to <br />defective manufacture, fabrication, installation, or other defects in construction. Membrane <br />roofing and base flashings shall remain watertight. <br />B. Material Compatibility: Provide roofing materials that are compatible with one another under <br />conditions of service and application required, as demonstrated by membrane roofing <br />manufacturer based on testing and field experience. <br />THERMOPLASTIC POLYOLEFIN (TPO) ROOFING (Alternate G -2) (Addendum #1) 075423 - 1 <br />