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Purlin
(redirected from Purlins)

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

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.

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).



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Products include (untreated) western pine boards, patterns, pre-finished pine, rough lumber, purlins, cedar and (treated) wood foundations, square and round building poles, fence posts, dimension lumber and decking, bridge planks, and landscape and deck timbers.
The second floor has three vaulted rooms, with exposed purlins and wall beams, and another well-equipped bathroom.
Vaulted ceiling, exposed roof trusses and purlins form a wonderful feature.
 
 
 
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