Gypsum Panel Roof Deck
It is mixed at the jobsite with clean water only and poured in place as a patch for existing gypsum decks.
Gypsum panel roof deck. 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. Venting lwic installed over structural concrete and other non venting substrates. The bulb tees which are very strong vertically but quite flexible horizontally provide the long span strength.
Securock brand gypsum fiber roof board s dense concentration of gypsum and cellulose fibers provides exceptional panel and bond strength low surface absorption and superior wind uplift performance with no face layer to delaminate. Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems. The bulb tees which are very strong vertically but quite flexible horizontally provide the long span strength. Examples of gypsum roof decks click on an image to enlarge.
Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets. Densdeck roof boards are easy to install in all types of roof systems and are an ideal product for direct membrane application. Usg s structural panel concrete roof deck can be applied with mechanical fasteners to serve as a structural substrate for direct mechinically or adhesive applied roof systems. Keydeck woven wire mesh is commonly used in repair of poured gypsum roof decks.
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. Picture story of gypsum roof deck repair sequence nrdca 600 guideline for application of cementitious wood fiber roof deck systems technical bulletin 1001. The fiberglass mat faced noncombustible as described and tested in accordance with astm e136 nonstructural gypsum core panels provide superior fire resistance and protection from hail damage and hold up well under normal construction and maintenance foot traffic while stiffening and stabilizing roof decks. Many of these installations continue to perform and provide support to roofing materials that have been added over time.
Structural panels concrete roof deck is an innovative technology designed to provide a structural roof sheathing without the need for thermal barriers pouring. Formboards placed between the bulb tees contain the fast setting poured gypsum roof deck. This system provides fire resistance seismic and wind load diaphragm values in addition to an economical roofing membrane substrate. Introduced as a roof deck substrate in the 1940 s.
Gypsum concrete roof deck system.