Ul Class A Roof

Class a roof assemblies and roof coverings shall be listed and identified as class a by an approved testing agency.

Ul class a roof.

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. It also serves as a key differentiator for products within the roofing market. Class a roofing is the preferred choice for any home but this type of roofing is particularly important if you live in an area that is prone to wildfires to achieve a class a rating the roof must be effective against severe fire exposure. Ul developed a test to rate the strength of roofing materials called the ul.

The ul certification mark on roofing products and assemblies is relied on by code enforcement officials and buyers to verify that your products and systems meet regulatory requirements. Ul developed a test to rate the strength of roofing materials. Class four is an impact standard used to rate roofing materials like shingles and metal materials. Class a roof assemblies are those that are effective against severe fire test exposure.

Class a b or c rating is a measurement of the external spread of flame on a roof surface. Underwriters laboratories ul is a not for profit independent testing organization that was founded in 1894. A number of fire test laboratories including underwriters laboratories ul and fm global fmg conduct this test using either the astm e 108 or ul 790 standard. This test is called the ul 2218 impact rating.