Shingles Class A Fire Rated Roofing System

1 1 2 c 1 1 2 x 25 32 block of wood with one saw kerf on the wood block.

Shingles class a fire rated roofing system.

That puts it somewhere between class g and class h. Roofing with a class c rating is able to. Experience maximum flame spread of 13 feet. And so we finally come to the question posed by the title of this article.

Withstand a burning brand measuring 1 5 x 1 5 and weighing 1 4 gram. Obviously since wildfires and the fire season has become increasingly worse it is important to note the roofing materials that are the lowest rated. If wood shakes and shingles are impregnated with fire retardant chemicals they meet the requirements for a class b fire rating and can meet a class a rating if additional materials are included in the roof assemblies. Class c roofing provides only light fire protection.

Get free shipping on qualified class a roof shingles or buy online pick up in store today in the. The code requirements for fire resistance of metal panels are logical and not overly burdensome. Fire rating ul 790. Most metal panel manufacturers have tested their roof assemblies and most if not all metal panels and shingles can be used in class a fire rated roof systems.

Ul 790 and astm e 108. Class c roof coverings are not readily flammable are effective against light fire exposures and do not readily carry or communicate fire. Lasting color davinci s state of the art tiles are made of virgin resins fortified with state of the art uv stabilizers. Similar to class a and b above but a still smaller fire test configuration is used.

You can find the ratings for gaf timberline shingles on this website. Fire resistance due to the materials used in their construction most asphalt shingle roof assemblies have a class a fire resistance rating. Fire resistance is based on two test standards. Pressure treated shakes and shingles are the most common roofing materials to fall under the class b rating.

Roofing systems must meet or exceed building codes and insurance requirements. Class c fire resistant roofing material. Example test process for class c fire protection rating. What class are gaf timberline hd shingles.

Set your store to see local. Some insurance companies may provide premium discounts when shingles are impact resistant rated at the class 4 level. Wood shake plywood or particle board roof are the most common roofing types listed as class c. A standard fire test is used to determine the fire rating of a roof covering.

This test evaluates the following performance. As you can see these shingles have a class a fire rating and its wind resistance rating is 130 mph.