The last factor in determining a good choice for a hail resistant roof is choosing the type of metal panel itself.
Hail ratings roof.
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.
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.
What are hail ratings impact resistance ratings.
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.
The corrugation helps deflect and hide any deformities that may occur from a hail storm.
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.
There are hail resistant roofs.
Check our latest roofing ratings for detailed results for 16 different lines of.
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.
Below cr members with digital access can read ratings and reviews of three top performing shingles from our tests.
The american society of testing and materials astm perform the tests.