Owens Corning TruDefinition® Duration Flex® Limited Lifetime Warranty Impact Resistant Shingles (32.8 sq. ft.)

Unlike standard shingles, TruDefinition® Duration FLEX™ shingles are made with a proprietary blend of SBS polymer modified asphalt. The rubberizing effect of the uniquely blended SBS modified asphalt makes the shingle pliable and gives them greater FLEX™bility and enhanced durability and toughness, especially under intense storm conditions. With Duration FLEX™, you are getting a shingle that has the highest impact rating possible at UL 2218 Class 4 and may qualify for a homeowner insurance discount; chec...