Precast Gypsum Plank Roof Deck

Precast modular concrete blocks make up this rather unique system.

Precast gypsum plank roof deck. The planks are not poured on site but precast. 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. The building may date from the late 1930 s. No other building system accommodates creativity and practicality like spancrete hollowcore floor and roof building systems.

A modern iteration of this arrangement is the quad deck system marketed by quad lock. It is one of the various types of insulated concrete forms icfs. 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. 2 1 gypsum plank roof decking figure 1 2 1 1 gypsum planks are normally 2 inches thick 2 feet wide and 8 feet long and are factory laminated of two gypsum panels.

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. Special galvanized wire mesh draped over the bulb tees distribute vertical loads to the bulb tee system and resist diaphragm loads. There is a hung ceiling below which may be part of the assembly. Collaboration with the structural engineer.

Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets. Aside from roof decks this arrangement can also be deployed as a floor system. Place plank on lower flanges of sub purlins or other framing with ends and edges supported. Each plank weighs approximately 135 lbs.

Formboards placed between the bulb tees contain the fast setting poured gypsum roof deck. Structural panel concrete roof deck is versatile and economic option for both low and steep slope roofs. For extreme environmental conditions stainless steel edging is available. These include office complexes schools public buildings shopping malls and warehouses located throughout the united states.

Gypsum deck plank for roof decks. The gypsum roof deck system is supported by bulb tees generally spaced from 24 to 32 on center. Note gypsum planks also come in other sizes. 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.