Gypsum Roof Deck Repair

Formboards placed between the bulb tees contain the fast.

Gypsum roof deck repair.

Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems. Mill formulated and composed of specially calcined gypsum and wood chips or shavings. If you re looking for a trowelable solution to repair a gypsum underlayment usg has the answer. Gypsum concrete roof deck system gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets.

Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems. Picture story of gypsum roof deck repair sequence nrdca 600 guideline for application of cementitious wood fiber roof deck systems technical bulletin 1001. Introduced as a roof deck substrate in the 1940 s. Bulb tees are high strength lightweight steel sections.

Easy application for concrete floor patch repair on many different types of roof decks like gypsum roof decks. Type f roof deckfinishes primed gray g60 galvgauges 18 20 22sizes 36 x20 2 36 x24 2 the inverted tee or bulb tee holds the 3 x 4 form board panels and is welded to the steel bar joist. Venting lwic installed over structural concrete and other non venting substrates. Usg securock brand gypsum concrete patch is mill formulated and composed of specially calcined gypsum and wood chips or shavings.

Keydeck mesh is made up of 2 hexagonal mesh composed of woven 19 gauge galvanized wires with an additional 16 gauge galvanized longitudinal wire placed at every 3 interval of its width. Provides excellent fire performance non combustible in accordance with astm e136 and it s fire rated and approved for use in ul roof deck. Poured gypsum decks provide stable structural properties if kept moisture free. The gypsum roof deck system is supported by bulb tees generally spaced from 24 to 32 on center.

Keydeck woven wire mesh is commonly used in repair of poured gypsum roof decks. This system provides fire resistance seismic and wind load diaphragm values in addition to an economical roofing membrane substrate. These include office complexes schools public buildings shopping malls and warehouses located throughout the united states. Follow these steps to ensure your underlayment is level sec.

It is mixed at the job site with clean water only and poured in place as a patch for existing gypsum decks. Free water will cause the gypsum concrete to decompose and lose structural strength.