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.
Ul class 4 roof.
Class 1 class 2 class 3 class 4.
One great option for class 4 impact shingles is cedur roofing shakes.
With class 4 shingles there are no splits or tears.
Owens corning oc duration storm shingles are the most economical class 4 asphalt shingle on the market.
However due to the various benefits of class 4 impact resistant shingles the extra cost upfront may be a worthwhile investment if you live in an area where hail and wind storms frequently occur.
But what is most important for homeowners to know about a class iv roofing system is that it can save you big money on your homeowner s insurance premium with a class iv roof discount.
They are more resistant to hail than normal shingles however medium sized hail will damage them.
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.
Class four is an impact standard used to rate roofing materials like shingles and metal materials.
To meet class 4 impact criteria the shingle must show no evidence of fractures or cracks on the back side.
Class iv roofing systems include many different types of roofing materials not just asphalt shingles such as tile metal or synthetic roofing.
A class 4 roof covering receives the highest premium credit.
January 25 2010 ansi approved.
The list of approved laboratories is shown below.
Class 4 roofing shingles are considered to be a premium product and therefore may cost more than standard non impact resistant shingles.
As you contact various contractors or suppliers you should ask about roofing materials that meet ul standard 2218.
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.
Trudefinition duration flex shown in the color brownwood a class 4 impact resistant sbs roofing shingle from owens corning roofing.
The test consists of simulating the speed and terminal velocity of a 2 hail stone falling from the sky.
This roof will qualify homeowners for a discount with most insurance companies.
Stormmaster shingles with core4 are ul 2218 class 4 impact rated.
These shingles do not sacrifice style or aesthetic to earn their distinction as ul 2218 certified class 4 roof shingles.
An oc storm roof is about 5 more than a standard asphalt roof.
Stance of prepared roof covering materials with an impact resistance classification of.
Roof coverings that have passed the ul standard 2218 test are classified as either class 1 2 3 or 4.