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Bostwick Steel Lath Company advertisement for steel truss loop type metal lath in 1920. Metal lath dates from the late 19th century and is used extensively today with plaster and stucco in home and commercial construction. In addition to providing a matrix to which the stucco can adhere, metal lath adds strength and rigidity. [citation needed ...
Each wall frame is covered in lath, tacked at the studs. Wood lath is typically about one inch (2.5 cm) wide by four feet (1.2 m) long by 1 ⁄ 4 inch (6 mm) thick. Each horizontal course of lath is spaced about 3 ⁄ 8 inch (9.5 mm) away from its neighboring courses. Metal lath is available in 27-inch (69 cm) by 8-foot (240 cm) sheets.
The lath added support for the wet plaster and tensile strength to the brittle, cured stucco; while the increased thickness and number of layers helped control cracking. The traditional application of stucco and lath occurs in three coats—the scratch coat, the brown coat and the finish coat.
Expanded metal lath used to support stucco (1919) Facade made from expanded metal. Expanded metal is frequently used to make fences, walkways, and grates, as the material is very durable and strong, unlike lighter and less expensive [dubious – discuss] wire mesh. The many small openings in the material allow flow through of air, water, and ...
In construction, chicken wire or hardware cloth is used as a metal lath to hold cement or plaster, a process known as stuccoing. Concrete reinforced with chicken wire or hardware cloth yields ferrocement, a versatile construction material. It can also be used to make the armature for a papier-mâché sculpture, when relatively high strength is ...
With hand split lath the plasterer had the luxury of making lath to fit the cavity being plastered. Lengths of lath two to six foot are not uncommon at Economy Village. Hand split lath is not uniform like sawn lath. The straightness or waviness of the grain affected the thickness or width of each lath, and thus the spacing of the lath.
The inside part of the wall can be coated with adobe while the outside is finished with concrete and stucco. Tin can columns, walls and door frames with exposed metal lath in an Earthship home under construction in Taos County, New Mexico. Glass bottles around the first door frame, and much of the second, admit light.
Thus, after about 1860, most stucco was composed primarily of Portland cement, mixed with some lime. This made it even more versatile and durable. No longer used just as a coating for a substantial material like masonry or log, stucco could now be applied over wood or metal lath attached to a light wood frame.