Poured Gypsum Roof Deck

Bulb tees are high strength lightweight steel sections.

Poured gypsum roof deck. 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. Gypsum decks incorporated the placement of bulb tees. Gypsum concrete roof deck system. Poured gypsum concrete decks a gypsum concrete roof deck consists of gypsum concrete that is mixed with either wood fibers or mineral aggregate.

Gypsum poured over formboards has been used as a substrate for roofing materials since the 1940 s. Its use increased since it provided roof deck fire protection diaphragm values and an economical substrate for roofing. These include office complexes schools public buildings shopping malls and warehouses located throughout the united states. The density of dried gypsum concrete varies from 30 to 55 pounds per cubic foot depending upon the design mix and the type of aggregate.

Keydeck woven wire mesh is commonly used in repair of poured gypsum roof decks. Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets. The gypsum concrete which spans tee to tee encases the tees and. The poured gypsum roof deck consists of steel bulb tees a form board usually composed of gypsum or fiberglass wire reinforcing mesh and the gypsum concrete.

Gypsum concrete roof deck systems consist of a form board wire reinforcement and a poured application of gypsum concrete.