The impact resistant rating system ranks shingles’ resistance to impact into 4 levels – 1 through 4, with Class 4 as the highest rating level to impact resistance. If you install products that are UL 2218 Class 4 impact tested and may qualify for insurance discounts. These can be up to 30% on your premium. Please check with our insurance company for details.
Wind and hail damage is very costly. In fact, between 1991 and 1995, this kind of damage resulted in about $8 billion of insurance payouts each year. Roof damage caused by wind and hail made up a significant portion of these payouts. When asphalt shingles are damaged by hail, they can lose large amounts of granules, lose material at the edges, and suffer penetration by the hailstones.