Fire Rated Roof Deck

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 rated roof deck.

Versashield fire resistant roof deck protection provides the very best fire protection. An excellent fire barrier densdeck roof boards feature a noncombustible core and inorganic surface that offer greater fire protection than other conventional commercial roofing products when applied over combustible roof decks and steel decks. How are roofs rated. Firestall roof decking is a nailable class a fire rated structural roof decking made of multiple plies of homasote structural board and a face ply of ul listed n c f r homasote it is designed for use as a structural load bearing decking in residential and commercial buildings that require a class a 25 flame.

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. In the world trade tower collapse heat load on the connections of steel trusses is suspect. Ul and fm list many roof ceiling systems in their publications. Rooftop deck system is class a fire rated versadeck rooftop deck systems provide turnkey solutions for your roof deck needs.

Astm e108 defines fire test methods for roof. During the late 1980s there was an outbreak of structural roof deck failures directly related to degradation of frt plywood used as roof sheathing. The third major roof system fire test is astm e 119. This is a system test that includes structural members such as beams trusses and roof deck.

Most metal panel manufacturers have tested their roof assemblies and most if not all metal panels and shingles can be used in class a fire rated roof systems. The code requirements for fire resistance of metal panels are logical and not overly burdensome. In some jurisdictions roof assemblies are required to be fire resistant. Building with fire safety in mind.

Have there been any significant efforts made to eliminate premature degradation of fire retardant treated frt plywood used as roof decks. In many states especially in california having a class a fire rated non combustible decking is a must. Densdeck roof boards are fm tested and approved as the only 1 2 gypsum product to meet the. This may result in changes in the e 119.