Gar Roofing Class A Fire Ratings

Fire rating ul 790 class a 56 no rating available 1 price.

Gar roofing class a fire ratings.

Highest roofing fire rating. But by including a particular underlying material it can meet the requirements for a class a roof. Versashield fire resistant roof deck protection provides the very best fire protection. That puts it somewhere between class g and class h.

What class are gaf timberline hd shingles. And so we finally come to the question posed by the title of this article. This month let s take a closer look at one particular type fire ratings. The class 1 rating is an exclusive designation that can only be awarded by fm global which indicates the successful testing of the entire roof assembly using fm approval standard 4470.

In some jurisdictions roof assemblies are required to be fire resistant. Class a does not mean grade a roofing systems are rated by realistic fire tests. The maximum flame spread is 6 feet for a class a rated roof 8 feet for class b and 13 feet for class c. Windproven limited wind warranty.

Tested roof systems are fire classified class a b or c where the most fire resistant roof assemblies are class a and class c is least resistant. Truck tool rental. 20 30 3 30. In a recent roofing column we focused upon technical information that could be found on roofing material wrappers that could verify compliance with various building codes.

According to the scope of fm 4470. Get free shipping on qualified class a roof shingles or buy online pick up in store today in the building materials department. The best rating achieved is class a which is described by ul as effective against severe fire exposure class 1 rating. An exterior fire retardant treated shake roof has a stand alone class b rating.

When installed with the required combination of gaf accessories timberline hdz shingles are eligible for an industry first. Set custom price range. The slope of the test specimen is preselected and since steeper slopes are more of a challenge due to melting material feeding the fire the rating applies to the maximum slope passed. Building code fire resistance requirements building codes establish fire resistance requirements for roofs based on the type of construction e g concrete steel wood for the building.

As you can see these shingles have a class a fire rating and its wind resistance rating is 130 mph. Common underlying materials include a type 72 roll roofing material also known as 72 pound felt or 72 pound capsheet material and a panelized gypsum product. A wind warranty with no maximum wind speed limitation. You can find the ratings for gaf timberline shingles on this website.

Understanding roof fire ratings class a roofing.