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Various sized cuts of 1 ⁄ 2 in (13 mm) drywall with tools for maintenance and installation . Drywall (also called plasterboard, dry lining, [1] wallboard, sheet rock, gib board, gypsum board, buster board, turtles board, slap board, custard board, gypsum panel and gyprock) is a panel made of calcium sulfate dihydrate (), with or without additives, typically extruded between thick sheets of ...
Unlike fiberglass or cellulose insulation, spray foam adheres tightly to surfaces, meaning complete removal often requires tearing out drywall, roofing materials or entire sections of a home’s ...
A gypsum block is made of gypsum plaster and water. The manufacturing process [1] is automated at production plants where raw gypsum (CaSO 4 ·2H 2 O) is ground and dried, then heated to remove three-quarters of the bound water and thus transformed into calcium sulfate hemihydrate (CaSO 4 ·½H 2 O), also known as gypsum plaster, stucco, calcined gypsum or plaster of Paris.
It can be used on the exterior of buildings as a base for exterior plaster systems and sometimes as the finish system itself. Cement board adds impact resistance and strength to the wall surface as compared to water resistant gypsum boards. Cement board is also fabricated in thin sheets with polymer modified cements to allow bending for curved ...
By contrast, unprotected drywall and joint compound absorb water, causing sagging, bloating, or complete structural failure. As a consequence of plaster's inherent water shedding properties, it is a very effective water and mildew barrier. No sanding: Plaster is typically applied in one work session per wall or per several non-adjoining walls. [2]
A damp-proof course (DPC) [2] is a barrier through the structure designed to prevent moisture rising by capillary action such as through a phenomenon known as rising damp. Rising damp is the effect of water rising from the ground into property. [3] The damp proof course may be horizontal or vertical. [4]
After the existing plaster has been hacked off the wall, a salt and moisture retardant cream is applied to the wall. The plasterboard is then applied to the wall using a salt/moisture-proof adhesive. Such systems have the advantage that they can be decorated straight away, rather than having to wait several days or weeks (as would be the case ...
Dry rot is spread by spores which are present in most buildings. The minimum moisture content of timber for spore germination is 28–30% (lower than other rots), and the relative humidity must be in excess of 95%. Spores are resistant to desiccation and may still be viable for germination when they are several years old. [2]