Gar Roofing Class A 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.

Gar roofing class a fire ratings.

Example test process for class c fire protection rating. Similar to class a and b above but a still smaller fire test configuration is used. Understanding roof fire ratings class a roofing. 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. Windproven limited wind warranty. In some jurisdictions roof assemblies are required to be fire resistant. Ul class a listed to ansi ul 790.

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. This month let s take a closer look at one particular type fire ratings. A wind warranty with no maximum wind speed limitation. But by including a particular underlying material it can meet the requirements for a class a roof.

When installed with the required combination of gaf accessories timberline hdz shingles are eligible for an industry first. The maximum flame spread is 6 feet for a class a rated roof 8 feet for class b and 13 feet for class c. Highest roofing fire rating. Get free shipping on qualified class a roof shingles or buy online pick up in store today in the building materials department.

An exterior fire retardant treated shake roof has a stand alone class b rating. Fire rating ul 790 class a 56 no rating available 1 price. Truck tool rental. Set custom price range.

According to the scope of fm 4470. 20 30 3 30. Class a does not mean grade a roofing systems are rated by realistic fire tests. The best rating achieved is class a which is described by ul as effective against severe fire exposure class 1 rating.

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. Versashield fire resistant roof deck protection provides the very best fire protection. Versashield fire resistant roof deck protection is a key part of the gaf lifetime roofing system 1 and has earned the good housekeeping seal. 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.