Gypsum Concrete Roof Deck Construction

Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems.

Gypsum concrete roof deck construction.

You may also check out our complete list of companies. Roof deck is placed between or over roof supports and used as a base for the roof covering system. If the deck is sound it may be possible to treat the deck much like concrete by priming the surface adhering thermal insulation and installing a new roof membrane. Venting lwic installed over structural concrete and other non venting substrates.

In cincinnati columbus dayton southern ohio the blue book building and construction network. Typcally the poured gypsum deck is about 2 to 3 thick not 1 2 as you previously mentioned and is supported by bulb tees. Picture story of gypsum roof deck repair sequence nrdca 600 guideline for application of cementitious wood fiber roof deck systems technical bulletin 1001. Formerly known as pyrofill gypsum concrete securock brand gypsum concrete patch is a high performing gypsum patch solution that delivers a professional finish on a variety of poured roof decks.

Gypsum concrete roof deck system. It is mixed at the jobsite with clean water only and poured in place as a patch for existing gypsum decks. Formboards placed between the bulb tees contain the fast setting poured gypsum roof deck. Many of these installations continue to perform and provide support to roofing materials that have been added over time.

Gypsum concrete roof deck systems consist of a form board wire reinforcement and a poured application of gypsum concrete. The only cementitious structural panel approved by factory mutual fm fm approval standard 4472. Introduced as a roof deck substrate in the 1940 s. This is similar to using floor underlayments as the subfloor base for the floor covering.

Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets. Commercial roof deck concrete gypsum wood etc. Exceptional strength excellent fire performance and the versatility to patch many decks such as gypsum roof decks. According to fields corp the compressive strength of the gypsum is 500 psi.

A concrete roof deck that can be combined with other noncombustible materials to create 1 and 2 hour fire rated roof ceiling assemblies. The gypsum roof deck system is supported by bulb tees generally spaced from 24 to 32 on center. Usg securock brand gypsum concrete patch is mill formulated and composed of specially calcined gypsum and wood chips or shavings. I have generally seen the tees spaced about 30 to 36 on center.