MemBrain 8 ft. W X 50 ft. L Unfaced Air Barrier and Smart Vapor Retarder Roll 41 por | ago 6, 2026It lets wall cavities dry out to help prevent mold. Not all climate zones require vapor retarders. Color Family: Clear. Film Type: Other. Item Type: Plastic Sheeting. Paint Tool Product Type: Waterproofing Accessory.
