gypsum roof deck on 2 inch bulb tees

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" Gyps um Roof Deck Re pair/ Repl acem en t Proce dures"*

27/10/2016· " Gyps um Roof Deck Re pair/ Repl acem en t Proce dures"* Gy psum co n cre te W ire Mesh F ormboar d B ulb or Truss Tee History Gy psum cast o v er f ormboards and str u ctu r all y supported b y bulb tees or truss tees was i n trod u ced as a

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Old Gypsum Roof Board - Structural engineering general .

26/10/2010· I'm am adding a new opening for an RTU duct on an existing commercial building that I just found out have this old gypsum roof deck. ... and spaced 18 inches apart. You now have an 18 inch square frame supported by the bulb tees. RE: Old Gypsum Roof ...

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Fields / BUR Systems / Design Criteria / Roof Decks

Gypsum decks shall have a minimum thickness of 2", not including the form board, and shall extend a minimum of .25" above the top of bulb tees or other structural supports. Structural Supports: Gypsum concrete roof decks and their underlying form boards shall be supported by sub purlins that span the distance between the main purlins or joists.

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Gypsum Roof Deck Panels | Home Improvement

Gypsum decks incorporated the placement of bulb tees generally spaced 24 to 32 inches on center, a fiberglass formboard, galvanized wire mesh, and fast setting poured gypsum. I'm trying to determine load capacity for the roof of an industrial building that's sheathed with 2 .

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#218 Bulb Tees - Home – WestPro Construction Solutions

#218 Bulb Tees High Strength Structural Subpurlins & Bond Beams Bulb Tees are high strength, lightweight, steel sections for use as structural subpurlins in specialty roof decks such as Tectum Wood Fiber Decks, Poured Gypsum Decks and Span-Rock Gypsum

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Retrofitting Gypsum

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 bulb tees, which are very strong vertically but quite flexible horizontally, provide the long span strength.

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gypsum roof deck on 2 inch bulb tees

Old Gypsum Roof Board Structural engineering general Oct 26, 2010 What you have described is a "poured-in-place" gypsum deck. It has a gypsum form board on the bottom, sitting on the flange of a bulb tee. "Chicken wire" is draped over the bulb of the bulb tee ...

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Capacity of a gypsum roof - Structural engineering .

21/1/2004· Typcally, the poured gypsum deck is about 2" to 3" thick, (not 1/2" as you previously mentioned) and is supported by bulb tees. I have generally seen the tees spaced about 30" to 36" on center. According to Fields Corp., the compressive strength of the gypsum is 500 psi.

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Gypsum Repair – WestPro Construction Solutions

Bulb Tees are high strength, lightweight, steel sections used as structural subpurlins in specialty roof decks such as Tectum Wood plank, poured Gypsum decks, and Span-Rock Gypsum plank decks. Bulb Tees also make excellent bond beam for anchoring structural members, providing a continuous strip for attachment and reinforcement.

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Gypsum Roof Deck Replacement Procedures

Gypsum cast over formboards and structurally supported by bulb tees or truss tees was introduced as a roof deck substrate in the 1940"s. This system provides fire resistance, seismic and wind load diaphragm values in addition to an economical roofing center.

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