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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
SAFETY BULLETIN 85 October 17, 2013 GYPSUM ROOF DECKING B. Formboards are laid on the flanges of the subpurlins and serve as a form and remain in place to provide a functional underside of the roof deck. Formboards are gypsum sheetrock 1/2 inch .
Nov 11, 1975· Conventional poured deck construction utilizes bulb tees or truss tees as subpurlins. Both the bulb tees and truss tees have upstanding portions which govern the spacing due to the projection into the poured gypsum or concrete in an attempt to obtain resistance to uplift.
Oct 26, 2010· What you have described is a "pouredinplace" 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.
ICCES 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 ...
SECTION 03 51 16 GYPSUM CONCRETE ROOF DECKS SPEC WRITER NOTES: 1. Delete between // ____// if not ... hotrolled bulbtees or folded sheet metal tees as required by design loads, spans and fire ratings. 2. Flanges: Provide 16 mm (5/8inch) minimum bearing for gypsum planks. ... (1inch) thick gypsum panels with top panel edge set back along sub ...
Gypsum decks shall have a minimum compressive strength of 500 pounds per square inch. 3. 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.
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 .
prestressed concrete BulbT''s shall conform to the requirements contained in File Nos. and 2 and as specified below. Prestressed concrete BulbT''s shall normally be designed using 1/ 2" diameter strands. Strand diameters of " and 1/ 2" (special) may be .
Optional system for interstitial decks and roof decks. SECTION 03 55 11 GYPSUM CONCRETE FLOOR DECKS. ... hotrolled bulbtees or folded sheet metal tees as required by design loads, spans and fire ratings. 2. Flanges: Provide 16 mm (5/8inch) minimum bearing for gypsum planks. ... (1inch) thick gypsum panels with top panel edge set back along ...
See Fire Resistance DirectoryMetal 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.
TECTUM Roof Deck Tile. TECTUM Roof Deck Tile is used with 218 bulbtee 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 bulbtees. The space between the tile and bulbtees, are filled with gypsum grout for excellent anchorage and wind uplift ...
IN GYPSUM CONCRETE ROOF DECK CONSTRUCTION. Bulb tees are used in gypsum concrete construction as structural subpurlins. The bulb tees are fastened to the primary framing and provide support for the form boards that receive the gypsum concrete.
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 SpanRock Gypsum Plank Decks. Bulb Tees also make excellent bond beams for anchoring structural members, providing a continuous steel strip for attachment and reinforcement
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 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.
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 ...
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 ...
The team at WestPro Construction Solutions is experienced in many kinds of gypsum repair for roof deck systems. We can install several gypsum repair patches, including USG Securock, Keydeck Mesh, and 218 Bulb Tees.
TECTUM Roof Deck Interior Solutions from Armstrong World Industries. Roof deck, wall ceiling panels when noise control durability matter. Learn more.
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
TECTUM I roof deck from Armstrong Building Solutions. Excellent sound absorption, thermal barrier, compatible w/ variety of insulation roofing materials.
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.
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.
Material Weights Decking: Tectum, 1" thick Insulrock, 1" thick Poured Gypsum, 1" thick Vermiculate Concrete, 1" thick
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