History Of Gypsum Roof Deck

In the 1950 s new construction methods came in the way of new types of roof decking and dead level roof systems.

History of gypsum roof deck.

1946 a new name. Cutting section from deck. Of poured roof deck in oak ridge tennessee was for the manhattan project. These include office complexes schools public buildings shopping malls and warehouses located throughout the united states.

Galvanized wire mesh removing deteriorated gypsum deck 4. Venting lwic installed over structural concrete and other non venting substrates. Therefore many poured gypsum roof decks were not designed and installed with diaphragm shear strength in mind. Using the roof deck as a structural diaphragm was a california development and worked its way across the nation in the late 1950 s and early 60 s.

Bulb tees are high strength lightweight steel sections. It was not until 2 years later in 1945 that we knew the 2 500 000 sq. Only gravity load and wind uplift loads were considered. Deteriorated gypsum deck deck repair sequence 2.

3 4 the presence of a gypsum roof deck will be indicated by a white powdery residue during saw operations. Gypsum concrete roof deck systems have been installed since the early 1950 s in all types of commercial markets. Picture story of gypsum roof materials required 1. This was a cost effective way of construction back then and today.

Upon this observation members shall make immediate notification to the incident commander and proceed to evacuate the roof. Bags of gypsum concrete 3. Metal roof decking and gypsum roof decks were more prevalent and required a roof insulation overlay. Picture story of gypsum roof deck repair sequence nrdca 600 guideline for application of cementitious wood fiber roof deck systems technical bulletin 1001.

Keydeck woven wire mesh is commonly used in repair of poured gypsum roof decks.