Gypsum Plank Roof Decking

Gypsum roof decking is one of many materials used to cover open web steel bar joists.

Gypsum plank roof decking. Special galvanized wire mesh draped over the bulb tees distribute vertical loads to the bulb tee system and resist diaphragm loads. Attach roof sheathing through the gypsum board to the roof framing with sheathing joints offset from the gypsum board joints. 16 mm to account for the thickness of the gypsum board and shims. Old bald asphalt roof over wet fiberboard over asphalt felts and the white is a gypsum deck.

Note gypsum planks also come in other sizes. Each plank weighs approximately 135 lbs. Formboards placed between the bulb tees contain the fast setting poured gypsum roof deck. The gypsum roof deck system is supported by bulb tees generally spaced from 24 to 32 on center.

Retrofitting gypsum retrofitting reroofing poured gypsum 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. 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. Increase fastener length by 5 8in. Gypsum deck from underneath.

Apply the roof membrane as specified by the manufacturer. The sustainable design has earned independent certification from scientific certification systems. Gypsum planks are normally 2 thick 2 wide and 8 long and are factory laminated of two gypsum panels. Poke too hard and the tool will go through the deck.

The bulb tees which are very strong vertically but quite flexible horizontally provide the long span strength. Gypsum roof decking 2 1 gypsum plank roof decking figure 1 2 1 1 gypsum planks are normally 2 inches thick 2 feet wide and 8 feet long and are factory laminated of two gypsum panels. These include office complexes schools public buildings shopping malls and warehouses located throughout the united states.