ABIS has been in business over 27 years conducting both building and timber pest inspections. For instance, building a rounded wall would be difficult if drywall was used exclusively, as drywall is not flexible enough.ĪBIS building and pest inspections are conducted to the highest standard by building inspectors with a minimum of 10 years experience together with the highest professional qualifications in their field. As plastering is a skilled trade, and hence expensive, reducing the amount of plastering required in a new development also reduces the building costs.Īn advantage of using lath is for ornamental or unusual shapes. Lath and plaster have been mostly replaced with plasterboard (also a type of gypsum wallboard, although a bit thicker), since it is faster and less expensive to install. In the past, horsehair was used to help bind the plaster to the laths. Insufficient “keying” and the plaster will fall off the lath. After the plaster is completely dry, the walls are ready to be painted. A smooth, white finish coat goes on last. When the wall is fully covered, the vertical lath “guides” are removed, and their “slots” are filled in, leaving a fairly uniform undercoat. A helper feeds new plaster onto the board, as the plaster is applied in quantity. The applier drags the board upward over the wall, forcing the plaster into the gaps between the lath and leaving a layer on the front the depth of the temporary guides, typically about 1/4 inch. Plaster is then applied, typically using a wooden board as the application tool. Next, temporary lath guides are placed vertically to the wall, usually vertically at the studs. Each horizontal course of lath is spaced about 1/4 inch away from its neighbouring courses. The lath is typically about two inches wide by four feet long by 1/4 inch thick. Each wall frame is covered in lath, tacked at the studs. These are narrow strips of wood nailed horizontally across the wall studs. ![]() ![]() After the 1950s, plasterboard began to replace the lath and plaster process. Lath and plaster was a building process used mainly for interior walls until the late 1950s.
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