Products / WeatherBond Type IV Glass Ply Felt

A heavyweight fiberglass mat with heat-cured resinous binders saturated with Type IV asphalt, used as a base or inner ply in WeatherBond multi-ply systems under AC cap sheets, as a mopped base ply over asphalt-compatible substrates, as a 90-day temporary roof in a two-ply format, and as a vapor retarder. The bulletin says it meets ASTM D2178 and UL G1 base sheet requirements. Rolls are 36 inches by 180 feet, about 40 lbs, covering 500 square feet in one ply, made in Tuscaloosa, AL.