Testing the tests: A closer look at shingle impact ratings

Asphalt shingle performance boils down to a few common factors: impact-resistant strength provided by asphalt coatings saturated on a fiberglass mat and high wind resistance. The next is a high-performance “sticky” modified asphalt sealant that adheres shingles to a roof and maintains that tack under high winds and cold temperatures. If the coating and sealant […] The post Testing the tests: A…