Ul Class A Roof

It also serves as a key differentiator for products within the roofing market.

Ul class a roof. Underwriters laboratories ul is a not for profit independent testing organization that was founded in 1894. Class a roof assemblies and roof coverings shall be listed and identified as class a by an approved testing agency. 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. Class four is an impact standard used to rate roofing materials like shingles and metal materials.

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

Class a roof assemblies shall be permitted for use in buildings or structures of all types of construction. This test is called the ul 2218 impact rating. Understanding roof fire ratings class a roofing. Ul provides the knowledge and expertise to help consumers make informed decisions on products that affect their daily lives.