Owens Corning Roofing is making its Class 4 TruDefinition® Duration FLEX® and Duration STORM®
shingles available in more U.S. regions. The expansion of markets served meets growing demand for high-performance shingles in high storm regions across many parts of America.
TruDefinition Duration STORM and/or Duration FLEX shingles are now available to contractors and homeowners in more than 35 states, including the Irving and Memphis plant service areas. TruDefinition Duration STORM impact-resistant shingles combine SureNail technology for grip and feature patented WeatherGuard® Technology. The integrated polymeric backing material of the WeatherGuard Technology allows Duration STORM shingles to meet one of the industry's highest ratings for impact resistance: UL 2218, Class 4.