Products / WeatherBond FR Base Sheet 1S

A non-asphaltic, fiberglass-based underlayment used beneath mechanically attached WeatherBond EPDM and TPO systems over wood, tectum, gypsum and lightweight concrete decks to improve the system fire rating. The bulletin says it meets or exceeds ASTM D226 or D4869 Type I or II performance and describes a tan, non-slip surface. Rolls are 48 inches by 250 feet, about 96 lbs, covering at least 1,000 square feet, with manufacture listed in Meridian, MS.