Gar Roofing Class A Fire Ratings

But by including a particular underlying material it can meet the requirements for a class a roof.

Gar roofing class a fire ratings.

When installed with the required combination of gaf accessories timberline hdz shingles are eligible for an industry first. The best rating achieved is class a which is described by ul as effective against severe fire exposure class 1 rating. 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. Understanding roof fire ratings class a roofing.

20 30 3 30. Versashield fire resistant roof deck protection is a key part of the gaf lifetime roofing system 1 and has earned the good housekeeping seal. Class a does not mean grade a roofing systems are rated by realistic fire tests. As you can see these shingles have a class a fire rating and its wind resistance rating is 130 mph.

And so we finally come to the question posed by the title of this article. 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. In some jurisdictions roof assemblies are required to be fire resistant. Versashield fire resistant roof deck protection provides the very best fire protection.

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. Fire rating ul 790 class a 56 no rating available 1 price. Truck tool rental. You can find the ratings for gaf timberline shingles on this website.

This month let s take a closer look at one particular type fire ratings. A wind warranty with no maximum wind speed limitation. What class are gaf timberline hd shingles. 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 class a listed to ansi ul 790. Get free shipping on qualified class a roof shingles or buy online pick up in store today in the building materials department. 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. According to the scope of fm 4470.

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. An exterior fire retardant treated shake roof has a stand alone class b rating. The maximum flame spread is 6 feet for a class a rated roof 8 feet for class b and 13 feet for class c. That puts it somewhere between class g and class h.

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