Gypsum Precast Roof Decking

Structural wood fiber decking a grey area between combustible and noncombustible decking is the structural wood fiber deck system.

Gypsum precast roof decking.

For extreme environmental conditions stainless steel edging is available. The roof deck consists of a flat deck of 3 solid gypsum planks 1 wide and 3 long supported by doubled light gage channels in turn supported by structural steel framing. These fibrous decks generally have a gypsum like or cementitious binder and combine the functions of a roof deck thermal insulation and finished ceiling. If the deck is sound it may be possible to treat the deck much like concrete by priming the surface adhering thermal insulation and installing a new roof membrane.

Examples of gypsum roof decks. Metal edge tounge groove plank is a lightweight 12 psf precast concrete plank produced in a standard 1 6 x10 x2 size with a cold rolled 22 ga. For fire rated roof decks weld per fire test assembly. Collaboration with the structural engineer.

The gypsum roof deck system is supported by bulb tees generally spaced from 24 to 32 on center. Roof and floor deck systems. Many of these installations continue to perform and provide support to. Use minimum 13 mm 1 2 inch fillet welds on alternate sides of sub purlins both sides at end joints to main purlins.

2 metal edge tongue groove plank. Structural panel concrete roof deck is versatile and economic option for both low and steep slope roofs. Introduced as a roof deck substrate in the 1940 s. Gypsum deck from underneath.

Old bald asphalt roof over wet fiberboard over asphalt felts and the white. Place plank on lower flanges of sub purlins or other framing with ends and edges supported. Click on an image to enlarge. Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets.

Formboards placed between the bulb tees contain the fast. Because a roof deck is the foundation for the roof system the designer needs to coordinate the roof system design requirements for the roof deck with the structural engineer to ensure the performance of the roof system. Gypsum concrete roof deck system. Gypsum or lightweight concrete deck.

The planks are not poured on site but precast. Gypsum deck plank for roof decks. These include office complexes schools public buildings shopping malls and warehouses located throughout the united states. Unlike traditional roofing systems where multiple layers are required concrete roof deck is both the noncombustible structural sheathing and either the nail base or thermal barrier.

Gypsum or lightweight concrete deck. The top of the metal banded material will look like white sheet rock. Gypsum concrete roof deck systems consist of a form board wire reinforcement and a poured application of gypsum concrete.