Ul Class 4 Roof

The test consists of simulating the speed and terminal velocity of a 2 hail stone falling from the sky.

Ul class 4 roof.

Each shadow band is applied using a sophisticated computer controlled feathering technique. A class 4 rating the material should not get damaged when hit twice in the same spot by 2 inch diameter steel ball. 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 hail standard ul 2218 essentially encompasses four different sized metal balls being dropped from different heights to simulate hail more or less.

Stormmaster shingles with core4 are ul 2218 class 4 impact rated. With class 4 shingles there are no splits or tears. Stance of prepared roof covering materials with an impact resistance classification of. Ul standard ul 2218 edition 2 impact resistance of prepared roof covering materials edition date.

Installing a class iv roofing system should only be done by a qualified roofing company it must be a complete system that includes the proper roofing accessories the ul 2218 roofing material and the designated hip and ridge material for that system. Class 4 impact resistant roofing shingles. 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.

One great option for class 4 impact shingles is cedur roofing shakes. A hail resistant roof will save you money in the last 10 years hailstorms have caused more than 3 billion in property damage in colorado and wyoming mainly to roofs. Storms that bring hail airborne debris and high winds put your roof at risk for damage and installing impact resistant shingles may. Ul developed a test to rate the strength of roofing materials called the ul 2218 impact rating which is the test that determines if a roofing material is class 1 2 3 or 4.

January 25 2010 ansi approved. Their beauty is unlike any other thanks to our proprietary shadow bands. Class 1 class 2 class 3 class 4. 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.

To meet class 4 impact criteria the shingle must show no evidence of fractures or cracks on the back side.