A composite concrete roof deck serves as the structural base supporting one layer of a fully adhered self-adhering sheet vapor retarder directly on its surface. Two layers of fully adhered polyisocyanurate board insulation are installed above to achieve the specified R-value, followed by a fully adhered cover board. A single-ply thermoplastic PVC roofing membrane is fully adhered to the top of the cover board as the weathering surface. Mesh is provided as required for electronic film vector mapping testing.
COMPOSITE CONCRETE ROOF DECK; REF. STRUCTURAL (1) LAYER SELF-ADHERING SHEET VAPOR RETARDER; FULLY ADHERED TO CONCRETE SURFACE COVER BOARD FULLY ADHERED TO INSULATION; THICKNESS AS SPECIFIED FULLY-ADHERED SINGLE-PLY THERMOPLASTIC PVC ROOFING MEMBRANE; THICKNESS AS SPECIFIED (2) LAYERS OF FULLY-ADHERED POLYISOCYANURATE BOARD INSULATION. THICKNESS TO ACHIEVE SPECIFIED R-VALUE. NOTE: PROVIDE MESH AS REQUIRED FOR EFVM TESTING
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