This building materials, generally used for inside partitions and ceilings, consists of a gypsum plaster core pressed between two thick sheets of paper. It supplies a easy floor prepared for portray or wallpapering and is offered in numerous sizes and thicknesses to go well with completely different building wants. For instance, an ordinary sheet would possibly measure 4 ft huge and eight ft lengthy.
Its significance in fashionable constructing practices stems from its fire-resistant properties, ease of set up, and comparatively low value. The gypsum core accommodates chemically mixed water, which, when uncovered to warmth, is launched as steam, slowing the unfold of fireplace. Its historic adoption considerably lowered building time in comparison with conventional plastering strategies, providing a extra environment friendly and economical resolution for creating inside surfaces.