Gypsum Roof Decking

Place plank on lower flanges of sub purlins or other framing with ends and edges supported.

Gypsum roof decking. Many of these installations continue to perform and provide support to roofing materials that have been added over time. Nrdca 600 guideline for application of cementitious wood fiber roof deck systems. Venting lwic installed over structural concrete and other non venting substrates. The poured gypsum roof deck consists of steel bulb tees a form board usually composed of gypsum or fiberglass wire reinforcing mesh and the gypsum concrete.

Weights vary with the. Each plank weighs approximately 135 lbs. Picture story of gypsum roof deck repair sequence. It is mixed at the jobsite with clean water only and poured in place as a patch for existing gypsum decks.

Usg securock brand gypsum concrete patch is mill formulated and composed of specially calcined gypsum and wood chips or shavings. Formboards placed between the bulb tees contain the fast setting poured gypsum roof deck. Nrdca gypsum roof deck repair replacement procedure. The gypsum roof deck system is supported by bulb tees generally spaced from 24 to 32 on center.

It provides exceptional bond and low absorption in adhered systems and offers sustainable design for all types of roofing systems including single ply fluid applied built up spray foam metal and modified bitumen roofing. Gypsum planks also come in other sizes. Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets. The 1 architecturally specified fiberglass mat gypsum roof cover board for nearly 30 years 1 superior dimensional stability over competitive gypsum fiber boards is due to their low coefficient of thermal and hygrometric expansion.

A type of roof decking that will be discussed is called gypsum roof decking. Gypsum roof decking 2 1 gypsum plank roof decking figure 1 2 1 1 gypsum planks are normally 2 inches thick 2 feet wide and 8 feet long and are factory laminated of two gypsum panels. Securock brand gypsum fiber roof board s unique fiber reinforced homogenous composition gives the panel strength and water resistance through to the core. Gypsum deck plank for roof decks.

Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems. These include office complexes schools public buildings shopping malls and warehouses located throughout the united states.