Products / HPR Glasbase / HPR Premium Glasbase

Asphalt-coated fiberglass base sheet used as the initial underlayment in a Garland HPR built-up roof, as a nailable base sheet on various decks, or as ply sheets in the cold-applied Weatherking system. Offered as HPR Glasbase (3 ft by 108 ft rolls) and HPR Premium Glasbase (3 ft by 72 ft rolls), both 55 mil nominal. The finished sheet meets or exceeds ASTM D 4601 Type II.