Gypsum Roof Deck Repair

If you re looking for a trowelable solution to repair a gypsum underlayment usg has the answer.

Gypsum roof deck repair.

Picture story of gypsum roof deck repair sequence nrdca 600 guideline for application of cementitious wood fiber roof deck systems technical bulletin 1001. Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems. Venting lwic installed over structural concrete and other non venting substrates. Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems.

Bulb tees are high strength lightweight steel sections. This system provides fire resistance seismic and wind load diaphragm values in addition to an economical roofing membrane substrate. 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. Easy application for concrete floor patch repair on many different types of roof decks like gypsum roof decks.

Poured gypsum decks provide stable structural properties if kept moisture free. 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. Gypsum concrete roof deck system gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets.

Formboards placed between the bulb tees contain the fast. The gypsum roof deck system is supported by bulb tees generally spaced from 24 to 32 on center. Densdeck roof boards are easy to. Mill formulated and composed of specially calcined gypsum and wood chips or shavings.

Introduced as a roof deck substrate in the 1940 s. It is mixed at the job site with clean water only and poured in place as a patch for existing gypsum 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. 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. The fiberglass mat faced noncombustible as described and tested in accordance with astm e136 nonstructural gypsum core panels provide superior fire resistance and protection from hail damage and hold up well under normal construction and maintenance foot traffic while stiffening and stabilizing roof decks.