INSULATION/UNDERLAYMENT Sample Clauses

INSULATION/UNDERLAYMENT. A. Install one layer of ½” HD cover board insulation, mechanically fastened through the existing materials and into the deck with roof system manufacturer approved screws and plates. B. Insulation shall be approved polyisocyanurate. Any areas with Wet insulation per IR Roof Scan report need to be replaced in-kind. 1. Rigid Polyisocyanurate Roof Insulation; ASTM C1289: