Gypsum Concrete Roof Deck

These include office complexes schools public buildings shopping malls and warehouses located throughout the united states.

Gypsum concrete roof deck.

Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets. Place plank on lower flanges of sub purlins or other framing with ends and edges supported. Picture story of gypsum roof deck repair sequence nrdca 600 guideline for application of cementitious wood fiber roof deck systems technical bulletin 1001. Old bald asphalt roof over wet fiberboard over asphalt felts and the white is a gypsum deck.

The top of the metal banded material will look like white sheet rock. Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems. Gypsum deck plank for roof decks. 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.

Venting lwic installed over structural concrete and other non venting substrates. Provides excellent fire performance non combustible in accordance with astm e136 and it s fire rated and approved for use in ul roof deck. Usg securock brand gypsum concrete patch is mill formulated and composed of specially calcined gypsum and wood chips or shavings. Free water will cause the gypsum concrete to decompose and lose structural strength.

Use minimum 13 mm 1 2 inch fillet welds on alternate sides of sub purlins both sides at end joints to main purlins. Gypsum concrete roof deck systems consist of a form board wire reinforcement and a poured application of gypsum concrete. For fire rated roof decks weld per fire test assembly. Easy application for concrete floor patch repair on many different types of roof decks like gypsum roof decks.

It is mixed at the jobsite with clean water only and poured in place as a patch for existing gypsum decks. If the deck is sound it may be possible to treat the deck much like concrete by priming the surface adhering thermal insulation and installing a new roof membrane. Gypsum concrete roof deck system. Poured gypsum decks provide stable structural properties if kept moisture free.

Gypsum deck from underneath.