Ul Class A Roof

Class a b or c rating is a measurement of the external spread of flame on a roof surface.

Ul class a roof.

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. Underwriters laboratories ul is a not for profit independent testing organization that was founded in 1894. This test is called the ul 2218 impact rating. Understanding roof fire ratings class a roofing.

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. Class a roof assemblies are those that are effective against severe fire test exposure. Ul developed a test to rate the strength of roofing materials called the ul. Ul developed a test to rate the strength of roofing materials.

Class a roof assemblies shall be permitted for use in buildings or structures of all types of construction. 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. Class four is an impact standard used to rate roofing materials like shingles and metal materials. Ul provides the knowledge and expertise to help consumers make informed decisions on products that affect their daily lives.