Gar Roofing Class A Fire Ratings

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.

Gar roofing class a fire ratings.

A wind warranty with no maximum wind speed limitation. 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. An exterior fire retardant treated shake roof has a stand alone class b rating.

Highest roofing fire rating. Set custom price range. Understanding roof fire ratings class a roofing. Truck tool rental.

Class a does not mean grade a roofing systems are rated by realistic fire tests. Class c roof coverings are not readily flammable are effective against light fire exposures and do not readily carry or communicate fire. Similar to class a and b above but a still smaller fire test configuration is used. 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. According to the scope of fm 4470. Ul class a listed to ansi ul 790. This month let s take a closer look at one particular type fire ratings.

1 1 2 c 1 1 2 x 25 32 block of wood with one saw kerf on the wood block. But by including a particular underlying material it can meet the requirements for a class a roof. The maximum flame spread is 6 feet for a class a rated roof 8 feet for class b and 13 feet for class c. Example test process for class c fire protection rating.

Versashield fire resistant roof deck protection provides the very best fire protection. 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. 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. 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.

When installed with the required combination of gaf accessories timberline hdz shingles are eligible for an industry first. 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. Windproven limited wind warranty. Fire rating ul 790 class a 56 no rating available 1 price.