Roof Boards




Roof BoardsDEXcell from National Gypsum is a line of lightweight, mold- and moisture-resistant roofing boards designed for use as a cover board and/or thermal barrier in all commercial roofing applications. The boards are available in cement or fiberglass-faced versions, both of which meet FM Class 1 and UL Class A fire ratings for roofing systems up to unlimited slope per UL 790. Learn more >

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