Ul Class 4 Impact Resistant Roof

Meets class f wind rating from underwriters laboratories the highest wind rating possible dura grip adhesive seals each shingle tightly and reduces the risk of shingle blow off.

Ul class 4 impact resistant roof.

Class 4 roof covering is the most impact resistant roof and receives the highest premium discount. To meet class 4 impact criteria the shingle must show no evidence of fractures or cracks on the back side. Class 1 class 2 class 3 class 4. 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.

What are impact resistant roofing materials. Stormmaster shingles with core4 are ul 2218 class 4 impact rated. Roof coverings that have passed the ul standard 2218 test are classified by ul as either class 1 2 3 or 4. 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.

If you re one of the millions of american homeowners who live in an area where intense storms frequently occur then your choice of roofing shingles plays a critical role in protecting your roof from storm damage. The cost of class 4 impact resistant shingles can vary from company to company but if you take the time to search you will find that many companies offer ul class 4 impact resistant roof options that are reasonably priced. Shingles on an impact resistant roof are designed to withstand high winds and hail damage and have a class 4 rating see below. But it is also important to note that the price you pay for a class 4 roof will mean your home or building is well.

Class four is an impact standard used to rate roofing materials like shingles and metal materials. Impact tested to prevent cracks and tears. Roof coverings must be tested and approved by underwriters laboratories ul or factory mutual fm and be rated as a class 1 2 3 or 4. Class 4 impact resistant roofing shingles.

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. I have installed in accordance with the manufacturer s specifications on the above described residence a roof covering listed as complying with underwriters laboratory standard 2218 impact standard for impact resi. 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. The test consists of simulating the speed and terminal velocity of a 2 hail stone falling from the sky.

Ul developed a test to rate the strength of roofing materials called the ul. 1 excellent wind performance. Impact resistant shingles and other roofing materials are designed to resist damage from hail and flying debris abuse that might damage ordinary shingles. Stance of prepared roof covering materials with an impact resistance classification of.