Fire Rated Roof Deck

Densdeck roof boards are fm tested and approved as the only 1 2 gypsum product to meet the.

Fire rated roof deck.

Building with fire safety in mind. 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.

Roofing systems must meet or exceed building codes and insurance requirements. This is a system test that includes structural members such as beams trusses and roof deck. Rooftop deck system is class a fire rated versadeck rooftop deck systems provide turnkey solutions for your roof deck needs. 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.

The code requirements for fire resistance of metal panels are logical and not overly burdensome. We provde a design take off including everything you need from the materials design plans installation instructions to the technical support. 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. Versashield fire resistant roof deck protection provides the very best fire protection.

Have there been any significant efforts made to eliminate premature degradation of fire retardant treated frt plywood used as roof decks. 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. This may result in changes in the e 119. After all one major concern about building a deck is the potential for fire especially if the area of installation will be near an outdoor grill or fire ring or in a town where the risk of wildfire is.

In the world trade tower collapse heat load on the connections of steel trusses is suspect. How are roofs rated. Ul and fm list many roof ceiling systems in their publications. In many states especially in california having a class a fire rated non combustible decking is a must.