Place plank on lower flanges of sub purlins or other framing with ends and edges supported.
Precast gypsum plank roof deck.
The gypsum roof deck system is supported by bulb tees generally spaced from 24 to 32 on center.
Serving as a combined deck and ceiling system the planks erect quickly to reduce on site labor needs and are capable of spanning long open spaces to aid design flexibility.
Gypsum deck plank for roof decks.
Precast modular concrete blocks make up this rather unique system.
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.
The planks are not poured on site but precast.
The building may date from the late 1930 s.
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.
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.
Note gypsum planks also come in other sizes.
There is a hung ceiling below which may be part of the assembly.
Formboards placed between the bulb tees contain the fast setting poured gypsum roof deck.
For extreme environmental conditions stainless steel edging is available.
No other building system accommodates creativity and practicality like spancrete hollowcore floor and roof building systems.
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.
Collaboration with the structural engineer.
Lightweight precast concrete planks.
Continuous interior voids add structural.
Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets.
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.
Structural panel concrete roof deck is versatile and economic option for both low and steep slope roofs.
Each plank weighs approximately 135 lbs.
