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Related to purlin: roof purlin


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

[Middle English.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈpɜːlɪn) or


(Building) a horizontal beam that provides intermediate support for the common rafters of a roof construction
[C15: of uncertain origin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈpɜr lɪn)

also pur•line


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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
Another benefit of MetSPEC 14 is its ability to enable engineers to choose the optimum purlin size and purlin system.
In architecture, where in a house would you find a purlin? 9.
The approach consisted of calculating an overall or system thermal resistance parameter, [R.sub.insul-sys] that combined the thermal resistances (the R-values) of the insulation drape on both sides of the structural element (referred to as purlin for the roof assemblies and girt for the wall assemblies) with the thermal resistance of the insulation on the structural element itself.
Bedroom two is another double and has an exposed brick wall with beams and a purlin to the ceiling.
here w--the intensity of distributed loads; L--the length of a purlin.
The typical failure modes for sleeve and overlapped connections were local buckling in the outer web of purlin section, tension fracture failure in the sleeve or lap section, local buckling in the compression flange of sleeve or lap section and elongation of boltholes.
(The remainder of the fourth piece will be part of the center purlin.) Make a 22-degree bend centered on the 24-inch mark of each piece.
Key equipment includes a fully automatic Z & C purlin roll forming line and fully automatic slitting line capable of slitting thinner gauge prepainted aluminum and gi coils used in making cladding.
The dining area has windows with deep quarry tiled sills, timber floor, high pitched ceiling with exposed purlin and a feature exposed stone wall with galleried landing.
This made quite a difference to the slender timbers that had been used as rafters and purlin beams.
They had been called to an address in Purlin Wharf, Netherton, just after midnight yesterday.
The company has unveiled plans, which include the introduction of the new long span purlin G-2 (second generation).