SUMMIT® is constructed of a light weight, extremely strong, woven polypropylene fabric, with UV and water resistive coatings and packaged for convenience in 10 square rolls weighing less than 30 lbs. each. SUMMIT® is unaffected by exposure to water and sunlight for at least 6 months - exactly what is needed to survive those special needs jobs. Summit is an inorganic, high strength woven fabric based roof system component appropriate for use in virtually all steep slope roof covering systems. SUMMIT® is fully compatible with asphalt shingles, metal roof coverings, Clay Tile, Slate, Concrete Tiles, Wood Shingles and Shakes or any other code approved, steep slope roof covering. The UL Classification demonstrates conformance to critical fire testing requirements. SUMMIT® is designed to provide for the lifetime need of an underlayment, offering water-shedding redundancy within the roof system while protecting the structure from water damage.