Hail-Resistant Roofs: Fact or Fiction?
Colorado often experiences severe hailstorms that can cause devastating property damage. The Rocky Mountain Insurance Information Association reports that Colorado’s Front Range and Wyoming’s eastern plains, commonly referred to as “hail alley,” receive the highest frequency of large hailstones in North America. Over the past 10 years, hailstorms have caused nearly $1.7 billion in damage to roofs and automobiles in hail alley. The damaging hailstorms generally occur mid-May through late July. Damages incurred to roofs during hailstorms can, however, be reduced with proper roof design and roofing product selection. A properly designed roof structure can substantially reduce hail damage. Several testing agencies have developed the following recommendations for the roof designer: Shingles made with polymer-modified (SBS) asphalt have better resistance to hail damage than shingles made from oxidized asphalt. Reroofing over an existing shingle system greatly increases the ...
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