Hail Ratings Roof

The corrugation helps deflect and hide any deformities that may occur from a hail storm.

Hail ratings roof. After performing the test roofing manufacturers would be scored based on the resistance of the material getting a rating from 1 least hail resistant to 4 most hail resistant. What are hail ratings impact resistance ratings. There are hail resistant roofs. For the majority of homes a class 4 ul 2218 rating will be sufficient in protecting your home from roof penetration due to a hail storm.

In most cases a corrugated panel is the best option for pure protection. The last factor in determining a good choice for a hail resistant roof is choosing the type of metal panel itself. The ratings are given by taking a steel ball and dropping it from a pre determined height and measuring the damage the roof has sustained. The american society of testing and materials astm perform the tests.

Summarizing the result we would be looking at for a class 3 roof is earned if the sample does not crack when hit twice in the same spot by a 1 75 inch diameter steel ball. Underwriters laboratories inc ul an independent for profit company has developed a series of laboratory test to measure how well roofing materials resist hail. These products have class 1 through class 4 hail resistance ratings 4 being the highest. These tests are widely accepted by the roofing industry and the results are widely quoted in industry promotional materials.