What are Class 4 Shingles?

If you live in an area susceptible to hail such as Rapid City, South Dakota, you may have heard the term “class 4 shingles”. Class 4 is the highest possible rating a roofing product can receive for its resistance to hail damage.

Most shingles are not impact rated. Much of the country does not receive hail large enough to damage shingles so manufacturers focus most of their energy and production time into making shingles that resist wind and damage from the sun. When replacing your roof in Rapid City or another area that is susceptible to hail, it is wise to look into upgrading to a class 4 impact resistant shingle.

Class 4 shingles receive their rating when they pass the UL2218 testing. Certified lab technicians drop a steel ball of 2" in diameter onto a shingles from 20 feet high. This generates 23.71 ft-lbs of energy to the 2" area that the ball impacts. There must be no tearing, fracturing, cracking, or rupturing for the shingle to pass the test.

Class 4 shingles typically cost about 20% more than standard shingles. This is a worthwhile investment because insurance companies typically offer you a discount on your yearly premium if you have class 4 shingles because it is less likely that the insurance will have to buy you a new roof in the future from hail damage.

We have seen class 4 shingles survive hailstorms where every neighboring roof received severe damage. If you live in Rapid City, the Black Hills, or any other area susceptible to hail damage you should consider a class 4 shingle next time you replace your roof.

To learn more about how we can install class 4 shingles for you, give us a call, we’d love to chat about upgrading your shingles!

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