Impact Resistant Roof Class 3
While class 4 is the highest rating for impact resistance there are also lower ratings a shingle can receive such as class 3 and class 2.
Impact resistant roof class 3. Impact resistant shingles are recommended for homes in areas that see frequent. Ir shingles are impact resistant not impact proof. Year manufactured date of installation. Roof coverings that have passed the ul standard 2218 test are classified by ul as either class 1 2 3 or 4.
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. Shingles on an impact resistant roof are designed to withstand high winds and hail damage and have a class 4 rating see below. The brand name of the roofing product. Approved laboratory roof class location ul class 1 2 3 and 4 tx only ul and fm class 3 and 4 all other states.
The difference between the ratings is that class 3 shingles withstand a smaller steel ball dropped from a lower height and likewise for class 2. What are impact resistant roofing materials. Considered a class 4 product impact resistant shingles can be made of steel rubber asphalt with sbs rubber asphalt with special matting materials aluminum copper and resin. Impact resistant shingles and other roofing materials are designed to resist damage from hail and flying debris abuse that might damage ordinary shingles.
Class 1 class 2 class 3 class 4. It is important to note the truth regarding a couple misconceptions associated with impact resistant roof shingles. 1 4 slate is not as strong and will usually come with a class 3 rating. Class 4 roof covering is the most impact resistant roof and receives the highest premium discount.
5 8 slate typically receives a class 4 rating making it impact resistant. After a hail storm your shingles may still experience some granular loss and dents at impact points. So while an ir shingle may reduce these effects the real benefit lies in. 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.
Aside from hail impact these materials can withstand high winds of up to 110 mph. The roof covering installed on this residence meets one of the following requirements. However you ll need to pay attention to the thickness of the slate you re choosing. 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.
Impact standard for impact resistance of prepared roof covering materials with an impact resistance classification of.