There are approximately 3,000 hailstorms annually in the United States, resulting in average insured losses of $1.6 billion. Hailstones can cause significant damage to roofs, windows, siding, and more.
While most hail is usually less than two inches in diameter, it can get much, much larger! The U.S. National Weather Service (NWS) has created an informative object-to-size conversion chart. Read more about hail from the NWS at: https://lnkd.in/ePBMApY
The Insurance Institute for Business & Home Safety (IBHS) has been conducting both laboratory research and field studies on hail. IBHS research has found that there is considerable variation in the impact resistance of different types of roof coverings. Lab tests and field observations indicate that most commercial roof coverings are not typically damaged by hail less than 1.25 in. in diameter, however, 3-tab asphalt shingles may be damaged by hail as small as 1 inch. More on their research can be found at: http://disastersafety.org/hail/
At Alexander& Schmidt, we evaluate roof conditions on thousands of property surveys annually. We do this in one of several ways. First, if we have internal access, we will get on the roof to observe and take photographs. Second, if we cannot gain access, and the building is 20’ high or less, we will use a camera on a pole. We can get high-resolution photos and evaluate conditions from these photos. Third, we can arrange to use drones to take photos and evaluate roofs.