![]() Cement board is a more water resistant construction material than gypsum. Some drywall, called greenboard, is coated with an oil-based additive on its green paper to make it moisture resistant. It comes in different panel thicknesses, from ¼ inch to ¾ inch. You’ll also see it labeled as wallboard, plasterboard, gypsum board, and of course, Sheetrock®. What is drywall?ĭrywall is simply a panel made of gypsum plaster covered with heavy paper. To get a totally smooth wall, some builders seal it with veneer plaster. You’ll need to conceal the seams between boards, which you’ll do by covering them with tape and joint compound. You’ll then fix them to wall studs or ceiling joists with a nail gun, drywall screws, or drywall fasteners. You’ll cut the sheet of drywall to size by scoring the paper and breaking the internal material. Regardless of which brand you choose, the technique for installing drywall is basically the same across brands. Its new Sheetrock® brand came into use during World War II, giving builders a fast and relatively easy way to erect interior walls. Gypsum Company began improving on the invention between 19, replacing plaster with gypsum plaster. ![]() The prototype for drywall-a layer of plaster between four layers of wool felt-was first made in the late 19 th century and was called Sackett Board, for its inventor, Augustine Sackett. Needless to say, lath and plaster was inefficient. Each coat necessitated ample drying time, and the plaster needed time to harden at the end of the process. Before the advent of drywall, builders had to apply plaster in layers on supporting wooden strips called laths. Since its invention over a hundred years ago, drywall has eased the process of building a house and embarking on home improvement projects. Gypsum Company, but there are no functional differences between drywall and Sheetrock®. In fact, Sheetrock® is a brand of drywall that is a registered trademark of the U.S. You may notice that home builders sometimes use “drywall” and “Sheetrock” interchangeably, or even as verbs-as in, “I’m going to Sheetrock this room”.
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