Ul Class 4 Roof
An oc storm roof is about 5 more than a standard asphalt roof.
Ul class 4 roof. 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. With class 4 shingles there are no splits or tears. These shingles do not sacrifice style or aesthetic to earn their distinction as ul 2218 certified class 4 roof shingles. Class four is an impact standard used to rate roofing materials like shingles and metal materials.
As you contact various contractors or suppliers you should ask about roofing materials that meet ul standard 2218. A class 4 roof covering receives the highest premium credit. This roof will qualify homeowners for a discount with most insurance companies. Class 1 class 2 class 3 class 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. 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. A class 4 hail resistant roof is the most durable type of roofing on the market and will not rip tear or crack when exposed to heavy winds rain or hail. Class iv roofing systems include many different types of roofing materials not just asphalt shingles such as tile metal or synthetic roofing.
January 25 2010 ansi approved. 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. Stormmaster shingles with core4 are ul 2218 class 4 impact rated. 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.
Stance of prepared roof covering materials with an impact resistance classification of. To meet class 4 impact criteria the shingle must show no evidence of fractures or cracks on the back side. The list of approved laboratories is shown below. Ul standard ul 2218 edition 2 impact resistance of prepared roof covering materials edition date.
The test consists of simulating the speed and terminal velocity of a 2 hail stone falling from the sky. Class 4 roofing shingles are considered to be a premium product and therefore may cost more than standard non impact resistant shingles. They are more resistant to hail than normal shingles however medium sized hail will damage them. One great option for class 4 impact shingles is cedur roofing shakes.
Roof coverings that have passed the ul standard 2218 test are classified as either class 1 2 3 or 4.