Gypsum Concrete Roof Deck

Exceptional strength excellent fire performance and the versatility to patch many decks such as gypsum roof decks.

Gypsum concrete roof deck. The bulb tees which are very strong vertically but quite flexible horizontally provide the long span strength. Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets. These include office complexes schools public buildings shopping malls and warehouses located throughout the united states. Gypsum concrete roof deck systems consist of a form board wire reinforcement and a poured application of gypsum concrete.

Old bald asphalt roof over wet fiberboard over asphalt felts and the white is a gypsum deck. The top of the metal banded material will look like white sheet rock. Many of these installations continue to perform and provide support to roofing materials that have been added over time. 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.

The gypsum roof deck system is supported by bulb tees generally spaced from 24 to 32 on center. 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. This system provides fire resistance seismic and wind load diaphragm values in addition to an economical roofing membrane substrate. 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.

Introduced as a roof deck substrate in the 1940 s. Formboards placed between the bulb tees contain the fast setting poured gypsum roof deck.