Over the past year, the Asphalt Roofing Manufacturers Association (ARMA) has led the process to update the ASTM International (ASTM) wind resistance standard for asphalt shingles to help ensure that it complies with the latest methods to determine design loads for roofs and cladding used on buildings. ASTM standards are consensus standards that are used around the world to improve product quality and build consumer confidence.
The 2016 version of ASTM D7158 is now coordinated with the American Society of Civil Engineers (ASCE) standard ASCE 7-10, “Minimum Design Loads for Buildings and Other Structures”, which is the document that the International Building Code relies on for its structural provisions. The ASCE 7-10 standard had significant revisions in wind design. ARMA worked with recognized structural engineers who are leaders in the wind-engineering field and industry stakeholders who provided specific updates to D7158 that ensure consistency with ASCE 7-10.
Although the building code includes conversion factors to account for differences between versions of ASCE 7, ARMA, and other industry stakeholders recognized the value of correlating D7158 with the latest version of ASCE 7. The updates were balloted and approved via the ASTM consensus process. This move helps to maintain building owners’ and homeowners’ confidence in the wind resistance of asphalt shingles.
“ARMA has always been a leader of progress and innovation in the roofing industry,” said Reed Hitchcock, executive vice president of ARMA. “Spearheading the revision of the test standard that determines wind resistance of asphalt shingles shows ARMA’s commitment to the roofing community, building owners and homeowners alike. We continue to strive to make asphalt the leading roofing technology.”
ASTM D7158-16, “Standard Test Method for Wind Resistance of Asphalt Singles (Uplift Forces/Uplift Resistance Method),” is now available for purchase on the ASTM International (ASTM) website.