Ul 2218 Class 4 Metal Roofing

A class 4 rating means the panel did not crack when struck twice in the same location by the 2 inch steel ball.

Ul 2218 class 4 metal roofing.

Ul 2218 standard for impact resistance of prepared roof covering materials the industry guideline ul 2218 exists to test a metal panel s resistance to puncturing or failing when it comes into contact with items such as hail or other small debris. Class 1 class 2 class 3 class 4. This simulation is achieved by taking a 1 25 2 inch steel ball and dropping it from a height of 12 feet above the panel. Of insurance web site.

The list of approved laboratories is shown below. We have installed class 4 shingles for many of our customers in recent years. 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. Class iv roofing systems include many different types of roofing materials not just asphalt shingles such as tile metal or synthetic roofing.

Hail qualification ul2218 class 4 excerpt from texas dept. Ul provides the knowledge and expertise to help consumers make informed decisions on products that affect their daily lives. Roof coverings that have passed the ul standard 2218 test are classified as either class 1 2 3 or 4. Installing ul 2218 class iv impact resistant shingles on a home has been proven to protect the roof from wind and hail damage.

As you contact various contractors or suppliers you should ask about roofing materials that meet ul standard 2218. Ul developed a test to rate the strength of roofing materials. Delta b c canada phone. Ul standard ul 2218 edition 2 impact resistance of prepared roof covering materials edition date.

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. Underwriters laboratories ul is a not for profit independent testing organization that was founded in 1894. The ul 2218 impact rating is a testing process in which a panel is subjected to a impact that simulates a hailstone. These are all terms used for roofing systems that have exceeded the standards of the test ul 2218 that is performed by underwriters laboratories.

The hail standard ul 2218 essentially encompasses four different sized metal balls being dropped from different heights to simulate hail more or less. This test is called the ul 2218 impact rating. After hail storms we checked for damage on the roofs recently covered with these shingles and found no significant damage on most. A class 4 roof covering receives the highest premium credit.

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