Industries & Professions /
Plasterers work on building interiors and exteriors. They apply plaster directly to masonry, wire, wood, metal, or lath. (Lath is a supportive reinforcement made of wood or metal that is attached to studs to form walls and ceilings.) These surfaces are designed to hold the plaster in position until it dries. After checking the specifications and plans made by the builder, architect, or foreman, plasterers put a border of plaster of the desired thickness on the top and bottom of the wall. After this border has hardened sufficiently, they fill in the remaining portion of the wall with two coats of plaster. The surface of the wall area is then leveled and smoothed with a straight-edged tool and darby (a long flat tool used for smoothing). They then apply the third or finishing coat of plaster, which is the last operation before painting or paperhanging. This coat may be finished to an almost velvet smoothness or into one of a variety of decorative textures used in place of papering.