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A batten is most commonly a strip of solid material, historically wood but can also of plastic, metal, or fiberglass. Battens are variously used in construction, sailing, and other fields. In the lighting industry, LED strips are commonly called battens.
Roofing battens or battening, also called roofing lath, are used to provide the fixing point for roofing materials such as shingles or tiles. The spacing of the battens on the trusses or rafters depend on the type of roofing material and are applied horizontally like purlins.
Battens are also used in metal roofing to secure the sheets called a batten-seam roof and are covered with a batten roll joint.
Some roofs may use a grid of battens in both directions, known as a counter-batten system, which improves ventilation.
Wall battens like roofing battens are used to fix siding materials such as tile or shingles. Rainscreen construction uses battens (furring) as part of a system which allows walls to dry out more quickly than normal.
Board-and-batten siding is an exterior treatment of vertical boards with battens covering the seams. Board-and-batten roofing is a type of board roof with battens covering the gaps between boards on a roof as the roofing material. Board-and-batten is also a synonym for single-wall construction, a method of building with vertical, structural boards, the seams sometimes covered with battens.
Battens may be used as spacers, sometimes called furring, to raise the surface of a material. In flooring the sometimes large battens support the finish flooring in a similar manner to a joist but with the batten resting on a solid sub-floor as a floating floor and sometimes cushioned.
Batten trim or batten molding is a thin strip of trim typically with a rectangular cross-section similar to lath used in lattice, used to cover seams between panels of exterior siding or interior paneling.
In flooring a batten may be relatively large, up to 2.5 inches (6.4 cm) thick by 7 inches (18 cm) wide and more than 6 feet (1.8 m) long.
In door construction ledges and sometimes also braces are used to strengthen the vertical battens.
Battens are used for solid wall insulation. Regularly spaced battens are fitted to the wall, the spaces between them filled with insulation, and plasterboard or drywall screwed to the battens. This method is no longer the most popular, as rigid insulation sheets give better insulation (with battens bridging the insulation) and take less time to fit.
- Whitney, William Dwight. "Batten, N.2." Def. 1. The Century Dictionary. Vol. 1. New York: Century, 1889. 476. Print.
- PDF illustrations of a batten being covered with a batten roll joint Archived April 16, 2014, at the Wayback Machine.
- Davies, Nikolas, and Erkki Jokiniemi. "flooring batten". Dictionary of Architecture and Building Construction. Amsterdam: Elsevier/Architectural, 2008. 156. Print.
- "batten, n.1". def. 1.a. Oxford English Dictionary Second Edition on CD-ROM (v. 4.0) © Oxford University Press 2009