Purlin Rafter Roof Construction

Purlins support the loads from the roof deck or sheathing and are supported by the principal rafters and or the building walls steel beams etc.

Purlin rafter roof construction.

Building control guidance note purlin and rafter roofs timber sizes and construction details author. Compared to conventional roofing system it might be a bit pricier in terms of installation but also has longer durability to provide better value for the future. In steel construction the term purlin typically refers to roof framing members that span parallel to the building eave and support the roof decking or sheeting. The purlins are in turn supported by rafters or walls.

Purlin roof structure civil engineering design in architecture or structural engineering or building a purlin or purline is a horizontal structural member in a roof. In architecture structural engineering or building a purlin or historically purline purloyne purling perling is a horizontal beam or bar used for structural support in buildings most commonly in a roof. A common arrangement is a rafter and purlin system which combines purlins and rafters. J l neal subject.

Metal building purlin spacing metal roofs are often referred as tin roofs in the past because of the use of tin such as aluminum or stainless steel sheets as the materials.