Gypsum Concrete Roof Deck

Old bald asphalt roof over wet fiberboard over asphalt felts and the white is a gypsum deck.

Gypsum concrete roof deck.

Usg securock brand gypsum concrete patch is mill formulated and composed of specially calcined gypsum and wood chips or shavings. Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets. Gypsum concrete roof deck system. This system provides fire resistance seismic and wind load diaphragm values in addition to an economical roofing membrane substrate.

It is mixed at the jobsite with clean water only and poured in place as a patch for existing gypsum decks. Easy application for concrete floor patch repair on many different types of roof decks like gypsum roof decks. Usg s structural panel concrete roof deck can be applied with mechanical fasteners to serve as a structural substrate for direct mechinically or adhesive applied roof systems. Use minimum 13 mm 1 2 inch fillet welds on alternate sides of sub purlins both sides at end joints to main purlins.

For fire rated roof decks weld per fire test assembly. Place plank on lower flanges of sub purlins or other framing with ends and edges supported. Formboards placed between the bulb tees contain the fast. Introduced as a roof deck substrate in the 1940 s.

Free water will cause the gypsum concrete to decompose and lose structural strength. These include office complexes schools public buildings shopping malls and warehouses located throughout the united states. Gypsum deck plank for roof decks. Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems.

Poured gypsum decks provide stable structural properties if kept moisture free. Gypsum concrete roof deck systems consist of a form board wire reinforcement and a poured application of gypsum concrete. Mill formulated and composed of specially calcined gypsum and wood chips or shavings. 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.

The top of the metal banded material will look like white sheet rock. Gypsum deck from underneath. Provides excellent fire performance non combustible in accordance with astm e136 and it s fire rated and approved for use in ul roof deck.