After a hail storm your shingles may still experience some granular loss and dents at impact points.
Impact resitant roof class 3.
Impact standard for impact resistance of prepared roof covering materials with an impact resistance classification of.
The roof covering product.
1 4 slate is not as strong and will usually come with a class 3 rating.
5 8 slate typically receives a class 4 rating making it impact resistant.
The brand name of the roofing product.
Shingles on an impact resistant roof are designed to withstand high winds and hail damage and have a class 4 rating see below.
Impact resistant shingles and other roofing materials are designed to resist damage from hail and flying debris abuse that might damage ordinary shingles.
It is important to note the truth regarding a couple misconceptions associated with impact resistant roof shingles.
However you ll need to pay attention to the thickness of the slate you re choosing.
So while an ir shingle may reduce these effects the real benefit lies in.
The impact resistance classification class 1 class 2 class 3 class 4 of the product under u l.
Slate is considered impact resistant.
What are impact resistant roofing materials.
Ir shingles are impact resistant not impact proof.
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.
Class 1 class 2 class 3 class 4.