Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets.
Poured gypsum roof deck weight.
Gypsum concrete roof deck system.
Gypsum roof decking is then allowed to set and covered with a water tight roofing material.
Poured gypsum decks provide stable structural properties if kept moisture free.
Use minimum 13 mm 1 2 inch fillet welds on alternate sides of sub purlins both sides at end joints to main purlins.
Free water will cause the gypsum concrete to decompose and lose structural strength.
Gypsum decks incorporated the placement of bulb tees.
It is usually poured to a 2 inch thickness and weighs approximately 17 5 lbs.
The density of dried gypsum concrete varies from 30 to 55 pounds per cubic foot depending upon the design mix and the type of aggregate.
Many of these installations continue to perform and provide support to.
For fire rated roof decks weld per fire test assembly.
A gypsum concrete roof deck consists of gypsum concrete that is mixed with either wood fibers or mineral aggregate.
2 2 gypsum concrete roof decking figure 2 2 2 1 gypsum concrete is mill formulated and composed of calcined gypsum and wood chips or shavings.
Its use increased since it provided roof deck fire protection diaphragm values and an economical substrate for roofing.
Tectum 1 thick 2 0psf insulrock 1 thick 2 7psf poured gypsum 1 thick 6 5psf vermiculate concrete 1 thick 2 6psf.
Place plank on lower flanges of sub purlins or other framing with ends and edges supported.
Gypsum deck plank for roof decks.