A purlin (or historically purline, purloyne, purling, perling) is a longitudinal, horizontal, structural member in a roof. In traditional timber framing there are three basic types of purlin: purlin plate, principal …

2 days ago · Uncover the vital role of purlins in construction. Understand their structural mechanics, material differences, and how they compare to rafters, trusses, and girts.

Apr 4, 2025 · A purlin is a horizontal support member in a building’s roof framework. It runs parallel to the eaves or ridge of the roof and supports roof sheeting or decking.

May 8, 2025 · Choosing the right purlin type depends on several key factors. These mainly include the size and span of your roof, local climate conditions, the building’s purpose, and, naturally enough, …

In architecture or structural engineering or building, a purlin (or purline) is a horizontal structural member in a roof. Purlins support the loads from the roof deck or sheathing and are supported by the principal …

Aug 28, 2025 · Purlins Are Secondary Roof Framing Members That Run Parallel To The Eave And Support Roofing Sheets Or Decking. They Span Between Rafters, Trusses, Or Main Beams And …

Dec 21, 2025 · Found in most large structures, purlins are the horizontal beams that provide structural support to a building by helping to pass roof loads to other major structural elements.