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Sawn lath became popular after the introduction of the circular saw in the 19th century. Roof laths span across between the rafters and support the wood shingles. A lath or slat is a thin, narrow strip of straight-grained wood used under roof shingles or tiles, on lath and plaster walls and ceilings to hold plaster, and in lattice and trellis ...
Battens are also used in metal roofing to secure the sheets called a batten-seam roof and are covered with a batten roll joint. [2] Some roofs may use a grid of battens in both directions, known as a counter-batten system, which improves ventilation. Roofing battens are most commonly made of wood or metal, but can be made of other materials.
The screw itself should be drilled a minimum of 1" into the concrete to hold effectively and a maximum of 1-3/4" or the threads will wear and will lose holding power. Ideally 1-1/4" to 1-1/2" of screw thread in the concrete. [1] So for example, if a 1/2" board is being screwed onto the concrete, a 1-3/4" to 2" concrete screw should be used ...
It is used as a decorative coating for walls and ceilings, exterior walls, and as a sculptural and artistic material in architecture. Stucco can be applied on construction materials such as metal , expanded metal lath , concrete , cinder block , or clay brick and adobe for decorative and structural purposes.
Wire mesh, often used for exterior stucco, is also found in combination or replacement of lath and plaster which serves similar purpose. Traditional lath and plaster (including rock and metal lath varieties) has superior sound-proofing qualities when used with lime or gypsum plaster, which is denser than modern drywall. [2]
The modern use of this material may be said to have started then, but the use of fibrous plaster was known and practiced by the Egyptians long before the Christian era; for ancient coffins and mummies still preserved prove that linen stiffened with plaster was used for decorating coffins and making masks.