Gypsum board

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A type of wallboard with a plaster core sandwiched between two layers of paper. Gypsum board was patented in 1894 by Augustine Sackett. By World War I, production methods for gypsum board were standardized and it was widely used for the construction of military barracks. Over time, various fillers were added to decrease weight (pumice, bubbles, etc.), to increase fire resistance (asbestos) and to increase crack resistance (wood and mineral fibers). Dextrin, or starch, is typically used as a binder. Gypsum board, also called drywall, is fire resistant, dimensionally stable and inexpensive. During World War II, gypsum board completely replaced the use of metal lath/plaster walls in new construction because the prefabricated boards were faster to assemble and because the use of steel was restricted. Currently, it has widespread use in the construction of interior walls and ceilings.

Synonyms and Related Terms

"panneau de plàatre (Fr.); carton-plâtre (Fr.); plasterboard; plaster board; wallboard; drywall; dry-wall; gyp board; rock lath; gypsum lath;

Brand names: Sheetrock® [U.S.Gypsum]; Gypsite; Sackett Board; Samson Plaster Board; Adamant; Bestwall Firestop; Gold Bond; Rocklath;

Additional Information

Kimberly Konrad, Michael Romlan, "Gypsum Board", in Twentieth-Century Building Materials, T. Jester (ed.), McGraw-Hill: New York, 1995.

Sources Checked for Data in Record

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  • Thomas C. Jester (ed.), Twentieth-Century Building Materials, McGraw-Hill Companies, Washington DC, 1995 Comment: Kimberly Konrad, Michael Romlan, "Gypsum Board"
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  • Website address 1 Comment:
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