BURmastic® Glass Ply - 28 lb.
Three Square Roll Asphalt Coated Fiberglass Base/Ply Sheet
The high-performance BURmastic Glass Ply-28 lb. sheet is good for use over pre-formed rigid insulation and/or base sheets, and can be used as hot applied or cold applied base sheet itself.
BURmastic Glass Ply-28 consists of a fiberglass membrane coated with waterproofing asphalts.