CertainTeed Black Diamond Base Sheet

CertainTeed Black Diamond Base Sheet is a heat activated, self adhered base sheet for hybrid roof systems with a torch applied cap or cap set in hot asphalt for modified bitumen or built up roofing systems. This base ply is suitable for new residential and commercial roofing constructions and reroofing over insulation, concrete, and plywood/OSB. It can also be used as a vapor barrier under roof insulation and may be left exposed for up to six months. The CertainTeed Black Diamond Base Sheet is backed by a Limited Manufacturer’s Warranty.