CCAC West Hills Campus WHC Main Roof Project WHC Main Roof Project
Date of Issue (05/26/2022)
3.2
PREPARATION
A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation according to roofing system manufacturer's written instructions. Remove sharp projections. B. Prevent materials from entering and clogging roof drains and conductors and from spilling or migrating onto surfaces of other construction. Remove roof-drain plugs when no work is taking place or when rain is forecast. C. Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing system at the end of the workday or when rain is forecast. Remove and discard temporary seals before beginning work on adjoining roofing.
3.3
INSTALLATION, GENERAL
A. Install roofing system in accordance with manufacturer’s written instructions and approved details. B. Install wood cants, blocking, curbs, and nailers in accordance with requirements of Division 06 Section "Miscellaneous Rough Carpentry." C. NRCA Installation Details: Install roofing system in accordance with the following NRCA Manual Plates and NRCA recommendations; modify as required to comply with manufacturer's approved details and perimeter fastening requirements of FM Global references if applicable: 1. Base Flashing at Parapet Wall: Plates TP-1 and TP-1S. 2. Base Flashing and Counterflashing at Parapet Wall: Plates TP-5 and TP-5S. 3. Base Flashing and Counterflashing at Parapet Wall, Movement Joint: Plates TP-6 and TP-6S. 4. Base and Surface-mounted Counterflashing: Plates TP-4 and TP-4S. 5. Perimeter Edge, Raised: Plates TP-2 and TP-2S. 6. Perimeter Edge, Embedded Edge: Plates TP-3 and TP-3S. 7. Perimeter Edge, Draining: Plates TP-3A and TP-3AS. 8. Options for Perimeter Base Securement (Roof-to-Wall and Roof-to-Curb Intersections): Single Ply Table 7.1. 9. Options for Perimeter Base Securement (Roof-to-Wall and Roof-to-Curb Intersections: Single Ply Table 7.2. 10. Guide for Sheet Metal Fascia Edges for Thermoset and Thermoplastic Membrane: Single-Ply – Table 1. 11. Scupper, Raised: Plates TP-21 and TP-21S.
075419 - Page 10 of 14 POLYVINYL-CHLORIDE (PVC/TPA) ROOFING
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