Underwriters Laboratories (UL) Inc. test UL 2218 simulates hailstones falling at peak velocity, and designates products with the most impact resistance Class 4.  IBHS recommends UL 2218 Class 3 or 4 products in hail-prone regions. 

The majority of residential roofing consists of asphalt shingles.  To make finding UL 2218 approved product easier, we have compiled a list of Class 4 impact resistant asphalt shingles. 

To download this list, click on the option to the right.