Horizontal support for attachment of metal panel systems.
A horizontal board or timber that lies across the rafters at right angles, parallel to the peak of the roof, to support the roofing material and increase the structural strength of the roof itself.
Horizontal roof timbers which support the rafters
In roofs, a horizontal member supporting the common rafters; subpurlins may support purlins.
Longitudinal horizontal beam. (Wood, Margaret. The English Medieval House, 414) Related terms: Purlin, Butt / Purlin, Collar / Purlin, Through / Purlin, Side / Ridge Purlin
Longitudinal timber between trusses, located about half way down the principal rafters, used to support the common rafters.
A horizontal beam in a roof construction at right angles to and supporting the rafters.
The horizontal member of a roof framing system used to support the main rafters or joists. quaternary ammonium chloride Quat, volatile salt, a cationic disinfectant used to destroy microorganisms.
Horizontal secondary structural member used to transfer loads from the primary structural members.
A horizontal structural member attached to the primary frames which supports roof panels.
A horizontal secondary structural member, bolted to the rafters, which transfers the roof loads from the roof covering to the primary frames.
One of a series of horizontal framing timbers supporting the rafters or spanning between trusses or frames and supporting the roof. Purlins usually span at right angles to the slope of the roof
A beam that is parallel to the ridge and directly holds up the roof structure. The ridgepole is a special case of a purlin. Counting the ridgepole, there are seven purlins in my building. You can see all of them as the big horizontal logs at the top of this picture.
The main horizontal beam in a roof which supports the common rafters and ultimately the roof surface.
A timber laid horizontally to support the common rafters of a roof.
A horizontal member in a roof perpendicular to the truss top chord used to support the decking.
a horizontal beam running the length of a roof and supporting the top rafters of the roof
horizontal tube (cross-bars) used for spacing and structural support between the hoops
Structural support beam positioned in the roof between main frame sections
A secondary structural framing member such as a joist or rafter that is normally supported by walls or primary beams.
Is a secondary structural member in a roof assembly that transfers the loads from the roof cladding to the principal structural frame.
Horizontal beam, part way up a rafter to prevent sagging
In timber roof construction, a secondary horizontal component parallel to the ridge and supported at each end by a rafter.
A roof support beam that runs parallel to the ridge beam and the long sides of a home.
The purlin is a support member found in a traditional roof frame. The purlin is positioned mid span of the rafters to reduce the likelihood of the rafter deflecting and sagging.
A support member that runs under a rafter to reduce the span.
Boards laid from gable to gable on which the common rafters sit. French (Panne)
Roofing purlins. Usually timber members fixed at right angles to the truss chords to support roof sheeting. Also provides lateral restraint to truss. Similar to battens except more widely spaced.
Horizontal roof members laid over trusses to support roof decking.
Positioned half-way up the slope of a roof, purlins are timber beams installed to support the rafters.
An aluminum framing piece in the roof that runs the length of the greenhouse. The purlin provides support to the rafters or roof glazing bars.
Horizontal beam in a roof upon which rafters rest.
Collar purlin, a beam running longitudinally immediately beneath the collars joining pairs of common rafters. Side purlin, a horizontal longitudinal member resting on or tenoned into the principal rafters of a truss and giving intermediate support to the common rafters.
A horizontal member attached perpendicular to the Truss top chord for support of the roofing (i.e., corrugated roofing or plywood and shingles).
Horizontal roof beam, running at right angles to, and in the centre of, the rafters.
horizontal timber that ties together the principal rafters and supports the common ones.
A horizontal structural member attached to the rafters and which supports roof panels.
Horizontal member laid across the principal rafters and supporting the subsidiary rafters.
the timber which spans the rafters or trusses and is used to attach roofing material to.
A horizontal structural member that supports roof covering and carries loads to the primary framing members.
A secondary horizontal structural member attached to the primary frame which transfers the roof loads from the roof covering to the primary members.
Horizontal secondary structural member that transfers loads from the primary structural framing.
Timber used to support roofing sheets. Usually fixed on top of rafters.
The horizontal structure that serves to support the roof covering transfering loads to the main framing members.
A horizontal roof member spanning between beams and trusses, and to which the roofing material is attached.
a horizontal member of the roof frame which runs between rafters
A secondary, cold formed horizontal structural member located in the roof to support sheeting, that is itself supported by the primary structure framing.
A horizontal structural member which supports roof covering.
A horizontal member attached perpendicular to the truss top chord for support of the roofing (ie agricultural steel roofing).
horizontal root support between rafters.
1. A timber supporting several rafters at one or more points. 2. Beams or struts that span across a roof to support the roof framing system.
Horizontal longitudinal timber
Horizontal structural member, running at right angles to the rafters that it is used to support between rafter end points.
In architecture or structural engineering, a purlin (or purline) is a longitudinal structural member in a roof. Purlins support the loads from the roof deck or sheathing and are supported by the principal rafters and/or the building walls. The use of purlins, as opposed to closely spaced rafters, is common in pre-engineered metal building systems and some timber frame construction.