Poured Gypsum Roof Deck Weight

Gypsum roof decking is then allowed to set and covered with a water tight roofing material.

Poured gypsum roof deck weight.

Tectum 1 thick 2 0psf insulrock 1 thick 2 7psf poured gypsum 1 thick 6 5psf vermiculate concrete 1 thick 2 6psf. It is usually poured to a 2 inch thickness and weighs approximately 17 5 lbs. Poured gypsum decks provide stable structural properties if kept moisture free. 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. Gypsum poured over formboards has been used as a substrate for roofing materials since the 1940 s. Place plank on lower flanges of sub purlins or other framing with ends and edges supported. 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.

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. Gypsum deck plank for roof decks. Gypsum decks incorporated the placement of bulb tees. For fire rated roof decks weld per fire test assembly.

Its use increased since it provided roof deck fire protection diaphragm values and an economical substrate for roofing. Damage that can cause loss of the structural composite strength is most likely to come from leakage of water into the roof deck from unattended roof leaks. Free water will cause the gypsum concrete to decompose and lose structural strength. Gypsum concrete roof deck system.