Fire Resistant Roofing Tar

Astm e108 defines fire test methods for roof coverings.

Fire resistant roofing tar. The benefit of metal tiles is that they are non corrosive and sit strong on houses with a steep slope. A 12 x 12 x 2 1 4. According to the nrca kirby who referred to astm e 108 and ansi ul 790 class a roof coverings are not readily flammable are effective against moderate fire exposures and do not carry or communicate i e. Fire ratings may pertain to resistance to fire from above the roof system the familiar class a b or c ratings or fire exposure from the building interior the underside of the roof deck.

It s fire resistance ballast roofing offers class a fire resistance without the need for gypsum underlayments or expensive fire retardant chemicals sustainability and ease of repair since the ballast stones aren t actually embedded in the membrane they can be easily removed and the membrane repaired as necessary and overall energy efficiency make ballast roofing systems a popular choice in many areas. Additional fire protection methods for roofs according to the national roofing contractors association homeowners should keep tree branches trimmed and away from the roof. Manufactured using a highly effective fire retardant and underlaid with a fire resistant barrier this assembly is one of only a few synthetic roofing materials to get ul s class a fire rating. Have a look at ecostar s recycled rubber majestic slate traditional tiles.

Metal tiles are made of a material that does not ignite when on fire with a fire resistant barrier with a class a protection. Wood shake plywood or particle board roof are the most common roofing types listed as class c. Gypsum fiberglass product used to give fire retardant treated shakes a by assembly class a rating. Class c fire resistant roofing material.

These tiles do not ignite when set on fire and have a fire resistant barrier with a class a level of protection. Obviously since wildfires and the fire season has become increasingly worse it is important to note the roofing materials that are the lowest rated. Two roofing materials in particular combine class a fire resistance style low maintenance and durability. They re relatively inexpensive but also require more upkeep than other options.

This insulating metal roof product is resistant to fire corrosion abrasion moisture and uv rays. Roofing systems must meet or exceed building codes and insurance requirements. Fiberglass based asphalt shingles provide good fire protection when they re installed with a fire resistant underlayment. Expect to pay between 6 50 and 8 50 per square foot installed.

How are roofs rated. Example test process for class a fire protection rating. In order for a given roof covering or assembly to be considered class a fire cannot penetrate through the roofing assembly into what would be the attic. Most metal roofs are made of steel copper zinc and alloys that are best for the dry environment in nevada.

Surface flame spread and ember generation requirements must also be met. The roof can withstand severe exposure to fire see astm e 108.