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GAF introduces EnergyGuard high-density ISO cover boards

GAF recently announced the production of high-density polyisocyanurate (ISO) cover boards, which can be used as a protective layer over boardstock insulation or as a recover over an existing roofing system. GAF offers two versions: HD with over 80 psi, and HD PLUS with over 110 psi compressive strength and a durable coated glass facer. Each of these boards is an ideal choice for protecting your roof from the elements and rooftop traffic.