purlin

pur·lin

also pur·line P0669900 (pûr′lĭn)n. One of several horizontal timbers supporting the rafters of a roof.

[Middle English.]

purlin

(ˈpɜːlɪn) or

purline

n (Building) a horizontal beam that provides intermediate support for the common rafters of a roof construction[C15: of uncertain origin]

pur•lin

(ˈpɜr lɪn)

also pur•line

(-laɪn)

n. a longitudinal member in a roof frame, usu. for supporting rafters or the like between the plate and the ridge. [1400–50; late Middle English purlyn, purloyne]

Purlin

purlin

[′pər·lən] (building construction) A horizontal roof beam, perpendicular to the trusses or rafters; supports the roofing material or the common rafters.

Purlin

a horizontal structural member in a roof. A purlin is supported on the principals (girders or trusses), and it supports panels or planking. Purlins are made of metal (solid or latticed), reinforced concrete, or wood (solid or with a closed or open cross section).

purlin, purline

purlins A piece of timber laid horizontally on the principal rafters of a roof to support the common rafters on which the roof covering is laid. Compare with subpurlin; also See common purlin, principal purlin, ridge purlin, and through purlin.

单词	purlin
释义	purlin pur·lin also pur·line P0669900 (pûr′lĭn)n. One of several horizontal timbers supporting the rafters of a roof. [Middle English.] purlin (ˈpɜːlɪn) or purline n (Building) a horizontal beam that provides intermediate support for the common rafters of a roof construction[C15: of uncertain origin] pur•lin (ˈpɜr lɪn) also pur•line (-laɪn) n. a longitudinal member in a roof frame, usu. for supporting rafters or the like between the plate and the ridge. [1400–50; late Middle English purlyn, purloyne] Purlin purlin [′pər·lən] (building construction) A horizontal roof beam, perpendicular to the trusses or rafters; supports the roofing material or the common rafters. Purlin a horizontal structural member in a roof. A purlin is supported on the principals (girders or trusses), and it supports panels or planking. Purlins are made of metal (solid or latticed), reinforced concrete, or wood (solid or with a closed or open cross section). purlin, purline purlins A piece of timber laid horizontally on the principal rafters of a roof to support the common rafters on which the roof covering is laid. Compare with subpurlin; also See common purlin, principal purlin, ridge purlin, and through purlin.
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