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Retrofitting Gypsum - Loadmaster

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.

Fields / BUR Systems / Design Criteria / Roof Decks

The three common types of steel sub purlins for this installation are: 1. Bulb tees. 2. Truss tees. 3. Cold rolled steel tees: Venting & Drying: Adequate interior ventilation shall be provided below the deck to dry excess moisture from the poured gypsum, the form board, and other moisture generating construction processes. When possible, the ...

Purlins - Permalite

Availability. Available Lengths Permalite® Purlins are available custom-cut in any transportable length, however there are some limitations. Minimum length is 1,800 mm and maximum length is 16,000 mm. Lengths <1,800mm will be combined and come with 'part …

Gypsum Concrete | NRDCA.org

Various sub‐purlins were used in the system. They include bulb tees and truss tees. Both provide the spanning characteristics required for the design. Gypsum Concrete systems were used in designs requiring up to two hour fire resistance ratings, wind uplift of UL Class 90, and where strong downward load resistance is desired.

THE POTEET GROUP

Sub-purlin spacing accommodates formboard with a slight tolerance for ease of formboard placement. Sub-purlins are spaced approximately 32-5/8 inches o.c. and are welded to the structural framing members. No. 218 Bulb Tee sub-purlins are the only size currently manufactured and are available from The Poteet Group.

CAD4J2438 | K/E Electric Supply Corporation

Beam/Purlin Bulb Tee Clip; Type Bulb Tee Clip; Load Rating 135 Lb; Material Spring Steel; Finish CADDY Armour; Used On Item Beam/Purlin; Maximum Flange Thickness 3/16 Inch 0 items / …

bulb tee - FMPedia Wiki - FM Glossary - Knowledge Library

bulb tee High-strength, lightweight, steel sections used as sub-purlins in specialty roof decks such as structural cement fiber tile, precast or poured gypsum, and poured light weight concrete. Bulb tees are superior to cold-rolled, or built-up subpurlins of light gauge sheet metal, in part because bulb tees are hot rolled from high-strength ...

Steel Framing | Purlins, Battens & Building Frames | Stratco

Steel Framing Advantages. Steel is strong and durable, offering long lasting structural integrity. Steel framing won't warp, twist or shrink. Non-combustible, steel framing offers a significant reduction in flammable material. Steel roof, wall and floor framing is 100 per cent termite proof.

Tee Section, T Beam, T Bar - Handy Steel Stocks

Tee Section, also known as T beam or T bar, is a structural beam with a "T" shaped cross section. Tee section is generally made of plain carbon steel. Manufacturing methods of "T" sections are hot rolling, extrusion and plate welding. T bars are often used for general fabrication

Bulb tees - Structural engineering general discussion ...

Jul 28, 2010· I am trying to gather information on the capacity of an existing roof system. The 1965 drawings call for the following roof system to span 8'-0" between joists: ". . .2" gypsum deck with 4x8-12/14 W.W.M. on 1-1/2" insulation foamboard and #228 bulb tees at 33" spacing"

D&S_1: LESSON 2. Rolled Structural Steel Sections

The steel sections manufactured in rolling mills and used as structural members are known as rolled structural steel sections. The steel sections are named according to their cross sectional shapes. The shapes of sections selected depend on the types of members which are fabricated and to some extent on the process of erection.

gypsum roof deck on 2 inch bulb tees - amiciml.it

May 23, 1978 A poured concrete insulated roofing structure installed over roof support members and having gypsum formboard with its underside adjacent the insulating and fireproof poured gypsum roof deck system providing a 2 hour fire rating. bulb tee sub-purlins 11 are supported by any suitable structural members such as open web joists or I ...

VA 03 51 16 Gypsum Concrete Roof Decks - WBDG

Structural Welding Code Steel PART 2 - PRODUCTS 2.1 MATERIALS A. Sub-purlins: 1. Open web truss-tees, 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. 3. Galvanize or factory coat sub-purlins with manufacturer's standard ...

Purlin | DoItYourself.com

A purlin is made of steel. Sub-Purlins. Sub-purlins (also called roof huggers) are manufactured to connect existing roofing to new roofing. Made in ten-foot increments, sub-parlins are made by a computer- controlled punch press and can be made to clear the profile of any existing roof panel.

SECTION 03 51 16, GYPSUM CONCRETE ROOF DECKS

A. Sub-purlins: 1. Open web truss-tees, 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. 3. Galvanize or factory coat sub-purlins with manufacturer's standard primer. 4.

Gypsum concrete construction -,Bulb tees are used as ...

Nov 17, 2014 - 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 ...

Flexospan - Structural Steel Members - Steel Z-Purlins & Z ...

Z Purlin and Z Girt Structural Steel Wind, Snow, & Weight Tables Flexospan provides standard, even-profile Z purlins and Z girts as well as custom profiles and punching patterns. We manufacture any component from 1/2" steel subgirts to 12" section up to 10 gauge. Steel z-purlins and z-girts are also available with other depths and flange widths.

RULES OF THUMB FOR STRUCTURAL STEEL DESIGN

lead to more efficient design for their sub-consultants. In response to their inquiries, I am offering the following guidelines for sizing structural steel. 1. How deep is a foot? For purlins, calculate 1/2 inch of depth for every foot of span. (If a steel purlin must span 24 feet between girders, it …

SK1 - Armstrong Building Solutions

steel purlins steel purlin tee angle at overhang welded to tee tee angle at perimeter weld both sides of tee screws min. 12" o.c. perimeter where long edge butts wall. foam filler panel sides field bulb tee tectum grout tectum grout two screws with 2" washers per joist per panel width in field adhesive meeting the requirements of afg-01, 3/8 ...

Steel Supplier, Steel Manufacturer, Stainless Steel ...

With a proud history spanning 116 years, Macsteel Service Centres SA has developed and expanded to be AFRICA'S LEADING MANUFACTURER, MERCHANDISER AND DISTRIBUTOR OF STEEL AND VALUE ADDED STEEL PRODUCTS.. Consisting of 8 dynamic Business Units and operating from a strategic network of more than 50 service centres, branches and warehouses, Macsteel supplies the entire Sub …

#218 Bulb Tees - WestPro Construction Solutions

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.

no. 218 bulb tee size - BINQ Mining

Nov 03, 2012· no. 218 bulb tee size. Posted at:November 3, 2012[ ... 218 Bulb Tee sub-purlins are the only size currently manufactured and are available from The Poteet Group. ... kerfed to accept a maximum size #218 bulb tee. The flanges of the steel tee are concealed in the body of the Tectum panel. The Tectum CTD system allows spans up

Buy Surplus Steel - Texas Iron and Metal

Buy surplus steel angle, bollard, channel, expanded metal, flat, floor plate, pipe, plate, rectangular tubing, rounds, sheet, square bar, square tubing, welding ...

Purlin - Wikipedia

Purlin plates in wooden construction. A purlin plate in wood construction is also called an "arcade plate" in European English, "under purlin", and "principal purlin". The term plate means a major, horizontal, supporting timber. Purlin plates are beams which support the mid-span of rafters and are supported by posts. By supporting the rafters they allow longer spans than the rafters alone ...

Masonry-to-steel-joist CONNECTION

Masonry-to-steel-joist CONNECTION Consider connection adjustability, potential differential movement, and lateral bracing of the masonry walls By Walter Laska Figure 1. If a welded connection is desired between a masonry bearing wall and steel roof joist, you can specify a bearing plate with studs solidly em-bedded in a grouted bond beam. Figure 2.

SECTION 03 55 11, GYPSUM CONCRETE FLOOR DECKS

A. Sub-purlins: 1. Open web truss-tees, 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. 3. Galvanize or factory coat sub-purlins with manufacturer's standard primer. 4.

Metal Mart Purlin - Metal Mart

Engineered Purlin METAL MART offers a complete line of Engineered Purlin material. •Available in Cee or Zee shape •Red Oxide Primed or Galvanized •16, 14 or 12 gauge •Sizes from 4" up to 12" •Flange widths of 1-1/2" up to 4" •Cut to your specified lengths • Hole …