Class 4 Impact Resistant Roof

With class 4 shingles there are no splits or tears.

Class 4 impact resistant roof.

Roof coverings that have passed the ul standard 2218 test are classified by ul as either class 1 2 3 or 4. Older class 4 roof systems can sustain damage from 2 1 2 stones. 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. With a regular shingle most of our competitors impact resistant shingles are only class 3 cracks and ruptures will appear from that kind of impact.

Ul developed a test to rate the strength of roofing materials called the ul. As asphalt ages it becomes less pliable and more brittle. Underwriters laboratories ul is a not for profit independent testing organization that delivers the verified information to help consumers make accurate decisions about products like impact resistant roofing materials. If you re one of the millions of american homeowners who live in an area where intense storms frequently occur then your choice of roofing shingles plays a critical role in protecting your roof from storm damage.

Effects of aging on a class 4 roof. Class 4 impact resistant roofing shingles. 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. As a result it no longer has the ability to transfer impact energy and the mat is damaged and or punctures occur to this system.

When it comes to shingles class 4 shingles are the highest classification you can get when it comes to hail damage resistance. In a class 4 ul 2218 impact resistance test a 2 inch steel ball is dropped from 20 feet to see if the shingles will fracture. They are associated with the ul 2218 impact test which involves dropping a two inch steel ball from 20 feet high onto the shingle and examining whether the shingle cracks or not. Storms that bring hail airborne debris and high winds put your roof at risk for damage and installing impact resistant shingles may.

Fm and be rated as a class 1 2 3 or 4.