This construction material, commonly used for interior walls and ceilings, consists of a gypsum plaster core pressed between two thick sheets of paper. It provides a smooth surface ready for painting or wallpapering and is available in various sizes and thicknesses to suit different construction needs. As an example, a standard sheet might measure 4 feet wide and 8 feet long.
Its significance in modern building practices stems from its fire-resistant properties, ease of installation, and relatively low cost. The gypsum core contains chemically combined water, which, when exposed to heat, is released as steam, slowing the spread of fire. Its historical adoption significantly reduced construction time compared to traditional plastering methods, offering a more efficient and economical solution for creating interior surfaces.
