The american society of testing and materials astm perform the tests.
Hail ratings roof.
In most cases a corrugated panel is the best option for pure protection.
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.
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.
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.
A class 4 test involves a steel ball weighing 1 2 pounds being dropped from a height of 12 to 20 feet on the same location of the assembly.
Below cr members with digital access can read ratings and reviews of three top performing shingles from our tests.
There are hail resistant roofs.
The corrugation helps deflect and hide any deformities that may occur from a hail storm.
Check our latest roofing ratings for detailed results for 16 different lines of.
What are hail ratings impact resistance ratings.
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.