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IN GYPSUM CONCRETE ROOF DECK CONSTRUCTION. Bulb tees are used in gypsum concrete construction as structural sub-purlins. The bulb tees are fastened to the primary framing and provide support for the form boards that receive the gypsum concrete.

SECTION 03 51 16 GYPSUM CONCRETE ROOF DECKS SPEC WRITER NOTES: 1. Delete between // ____// if not ... hot-rolled bulb-tees or folded sheet metal tees as required by design loads, spans and fire ratings. 2. Flanges: Provide 16 mm (5/8-inch) minimum bearing for gypsum planks. ... (1-inch) thick gypsum panels with top panel edge set back along sub ...

areas. Gypsum roof decks will usually perform satisfactorily except in the presence of moisture. Disintegration of the material and the -board may result from sustained leakage. Anchorage of the supporting bulb tees against uplift may also be of importance, with significant deterioration. Floor and roof

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, then the gypsum concrete is poured over the top. What you see from the bottom appears to be like a drywall material.

TECTUM Roof Deck Tile. TECTUM Roof Deck Tile is used with 218 bulb-tee steel subpurlins to increase the span and diaphragm capacity of the deck. The rabbeted edges of TECTUM tile rest on the steel tee flanges of the 218 bulb-tees. The space between the tile and bulb-tees, are filled with gypsum grout for excellent anchorage and wind uplift ...

May 23, 1978· A poured concrete insulated roofing structure installed over roof support members and having gypsum formboard with its underside adjacent the roof support members and secured to with its upper side adjacent rigid synthetic polymer , the polymer having spaces vertically therethrough over more than about 5 percent of the area of the gypsum formboard, and poured concrete over the .

Material Weights Decking: Tectum, 1" thick 2.0psf Insulrock, 1" thick 2.7psf Poured Gypsum, 1" thick 6.5psf Vermiculate Concrete, 1" thick 2.6psf

TECTUM Roof Deck & Interior Solutions from Armstrong World Industries. Roof deck, wall & ceiling panels when noise control & durability matter. Learn more.

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

Gypsum Board — (Classified or unclassified) — Supplied in sheets nom 2 by 4 ft to 4 by 12 ft, by nom 5/8 in. thick. Min weight 2.0 psf. Applied perpendicular to steel roof deck direction with adhesive or laid loosely. End joints to occur over crests of steel roof deck with end joints staggered 2 ft in adjacent rows.

SHEETROCK Formboard, a rigid gypsum board treated to resist mildew*, and fiberglass formboard are both available. Fire ratings are available with 2-inch gypsum slabs and exposed tees. Ideal for almost every roof deck need, concealed or exposed.

for many decades. In roof decks, the irst widespread use of SCA was the poured gypsum roof deck on bulb tees that began over 70 years ago. It was produced by several manufacturers such as United States Gypsum Co., Bestwall Company, and Georgia .

I am working on this building from around 1960 and it has an existing poured gypcrete roof deck system that spans to bulb tees that span to the steel structure. The client wants to close a bunch of existing roof penerations that had existing duck work with a steel plate bearing on the existing deck.

areas. Gypsum roof decks will usually perform satisfactorily except in the presence of moisture. Disintegration of the material and the -board may result from sustained leakage. Anchorage of the supporting bulb tees against uplift may also be of importance, with significant deterioration. Floor and roof

ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed ... along the long edge for installation between bulb tees or truss tees, which are attached to the top of, and span ... TABLE 2—ALLOWABLE ROOF DECK SPANS FOR TECTUM III PANELS1 TECTUM ...

4. Roof Decks: Use minimum 13 mm (1/2-inch) fillet welds on alternate sides of sub-purlins, both sides at end joints to main purlins. 5. For fire rated roof decks weld per fire test assembly. C. Gypsum Deck Plank for Roof Decks: 1. Place plank on lower flanges of sub-purlins or other framing with ends and edges supported. 2.

TECTUM I roof deck from Armstrong Building Solutions. Excellent sound absorption, thermal barrier, compatible w/ variety of insulation & roofing materials.

than about one eight of an inch under moderate hand pressure. Sagging floors will most often indicate problem areas. Gypsum roof decks will usually perform satisfactorily except in the presence of moisture. Disintegration of the material and the -board may result from sustained leakage. Anchorage of the supporting bulb tees

DECK SOLUTIONS For over 65 years Tectum® Roof Deck has provided reliable, sustainable, acoustical roof decking solutions to meet the commercial construction industry's needs. Tectum Roof Deck solutions are available in a wide variety of system configurations to match the unique needs of your building design. Tectum Roof Decks are ...

Optional system for interstitial decks and roof decks. SECTION 03 55 11 GYPSUM CONCRETE FLOOR DECKS. ... hot-rolled bulb-tees or folded sheet metal tees as required by design loads, spans and fire ratings. 2. Flanges: Provide 16 mm (5/8-inch) minimum bearing for gypsum planks. ... (1-inch) thick gypsum panels with top panel edge set back along ...

pressure. Sagging floors will most often indicate problem areas. Gypsum roof decks will usually perform satisfactorily except in the presence of moisture. Disintegration of the material and the -board may result from sustained leakage. of the supporting bulb tees against uplift may also be of importance, with significant deterioration.

See Fire Resistance Directory-Metal Roof Deck Panels* (CETW).2. Roof Insulation — Mineral and Fiber Boards* — 24 by 48 in. to 48 by 96 in., to be applied in one or more layers. Boards to be installed perpendicular to gypsum board (Item 4) direction with end joints staggered 2 ft in adjacent rows.

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 Plank Decks. Bulb Tees also make excellent bond beams for anchoring structural members, providing a continuous steel strip for attachment and reinforcement

Gypsum concrete construction -,Bulb tees are used as structural sub purlin. They are fastened to primary framing and provide support for form boards that receive gypsum concrete. They also anchor deck against uplift forces, restrict deck movement due to temp changes and provide lateral bracing for roof structure. Gypsum concrete roof decks are lightweight, set rapidly (30minutes) and when used ...
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