CLINTON, Ohio — RICOWI’s Hail Investigation Report of the May 24, 2011 Dallas / Fort Worth Texas hailstorm has been released. The purpose of the project was to document the effects of hail impact on a variety of roofing products, and to describe roof assembly performance and modes of damage for substantiated hailstone sizes.

RICOWI’s Chairman, Michael Ennis stated, “The 2011 Dallas / Fort Worth Hail Investigation was the second industry-wide hail research program conducted by RICOWI, Inc. to assess field damage from a major hailstorm in the United States. The storm selected was based on the criteria of having been declared an insurance catastrophe by Property Claim Service (an insurance services company) and having hailstones larger than 1.5 inches in diameter in a region of five square miles or greater in a previously defined area. The Dallas / Fort Worth metropolitan area was targeted due to its concentration of Impact Resistant steep slope roofing products.”