P-DFOB

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 flexibility 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: UL 2218 Class 4 and may qualify for a homeowner insurance discount - check with your insurance company.

Duration® Series Shingles feature patented SureNail® Technology - a technological breakthrough in shingle design. SureNail is a wide, highly visible engineered fabric strip in the nailing area that helps provide a "no guess" nailing zone for a consistent and quality installation, outstanding gripping power to the shingle below, a unique triple layer of reinforcement in the nailing zone for excellent fastener holding power against wind uplift.