When selecting a fire resistant roofing system it is usually recommended that the system in question has a ul class a fire resistance rating.
Fire resistant roofing membrane.
Versashield fire resistant roof deck protection provides the very best fire 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.
Wood shake plywood or particle board roof are the most common roofing types listed as class c.
Expect to pay between 6 50 and 8 50 per square foot installed.
A one hour rating would mean the structural elements have not yet reached their yield point when exposed to a under deck heat load defined in astm e119 for steel structural members as reaching 1 070 degrees f.
There are different fire ratings for construction products depending on what is being tested.
The fire retardant sheet is made up of a bottom ply of standard and a top ply of fire retardant compound.
All ratings are.
It is important to note that there are no fire ratings for roofing membranes.
Class c fire resistant roofing material.
Vinyl roofing membranes are inherently fire resistant.
No roofing system is 100 resistant to everything.
The fire rating of a single ply membrane is determined through standardised testing methods which take into account the complete flat roof system from the structural deck upwards.
Although a ballasted epdm fully adhered roof comes really close.
Rubbergard epdm fr fire retardant roofing membrane 1.
Versashield fire resistant roof deck protection is a key part of the gaf lifetime roofing system 1 and has earned the good housekeeping seal.
Fire resistance ratings time temperature include structural elements and everything above including the roof membrane and its surfacing.
Description the firestone rubbergard epdm fr fire retardant membrane is a 100 cured roofing membrane made of a synthetic rubber ethylene propylene diene terpolymer.
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.
Vinyl roofing membranes contain additional fire retardants making this cool roofing material slow to catch or spread fire and self extinguishing when the.
For a flat roof system the resistance of the roof to external fire.
If your building is in an area that s in danger of falling debris such as tree branches or heavy foot traffic opt for a thicker membrane such as 75 mil.
In some jurisdictions roof assemblies are required to be fire resistant.
