Impact tested to prevent cracks and tears 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.
Impact resistant roof class 3.
After a hail storm your shingles may still experience some granular loss and dents at impact points.
The roof covering installed on this residence meets one of the following requirements.
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.
Approved laboratory roof class location ul class 1 2 3 and 4 tx only ul and fm class 3 and 4 all other states.
What are impact resistant roofing materials.
The brand name of the roofing product.
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.
Ir shingles are impact resistant not impact proof.
Class 1 class 2 class 3 class 4.
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.
Class 4 roof covering is the most impact resistant roof and receives the highest premium discount.
Impact resistant shingles are recommended for homes in areas that see frequent.
The roof covering product.
Roof coverings that have passed the ul standard 2218 test are classified by ul as either class 1 2 3 or 4.
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 standard for impact resistance of prepared roof covering materials with an impact resistance classification of.
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.
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.
However you ll need to pay attention to the thickness of the slate you re choosing.
1 4 slate is not as strong and will usually come with a class 3 rating.
The impact resistance classification class 1 class 2 class 3 class 4 of the product under u l.
So while an ir shingle may reduce these effects the real benefit lies in.
Year manufactured date of installation.
Aside from hail impact these materials can withstand high winds of up to 110 mph.
