Vickie Crenshaw and Jim D. Koontz, P.E.
This article is based on a presentation delivered to the Roofing Industry Committee on Weather Issues (RICOWI)
meeting Oct. 27, 2000, in Dallas, Texas.
As a result of hail damage to roof coverings and membranes, insurance companies and property owners spend millions of replacement dollars annually. Over the years, several organizations have attempted to classify the impact or hail resistance of roofing systems. The intent in all cases was to provide some method of testing to quantify the relative hail resistance of roofing systems. Who could have imagined the resulting controversy surrounding finding a test method that would be satisfactory for all systems and meet the industry’s needs?