Products / BITEC Imperflex SA2

BITEC Imperflex SA2 is a fiberglass-reinforced, self-adhered SBS modified bitumen base ply for residential roofing, applied by removing a silicone-coated split release film. It may be used as a vapor retarder, underlayment, or base ply in a 2-ply modified bitumen membrane. The data sheet lists a 45 mil thickness, a weight of 24 lbs per 100 square feet, a polyethylene film top surface, and 67 ft by 3 ft rolls.