Roof Purlins Steel

Cleated or bracketed fixing only no flange bolting.

Roof purlins steel.

Purlins also appear in steel frame construction. The safe spans below are suitable for sheds and class 1 structures with the following assumptions. If this is the first time you have heard of bw industries or you are a returning user then we would advise you that we are a competitive alternative for steel components particularly for our range of purlins and ancillary components. Max roof span allowed 12m.

The roof deck is the wood panel ply board or metal sheeting that creates the surface of the roof. Metal roof purlins are installed horizontally under metal roofs. Bw industries manufacture a range of roof purlins that can be supplied as sleeved butted lapped or heavy end bay systems. The support system for the roof is comprised of ridgepole and rafters or purlins.

When made of wood it is usually covered with some sort of weatherproofing and sometimes an insulation material. Several kinds of purlins exist. Purlins are 2 by 4 feet and are installed much like metal roofing. Steel purlins may be painted or greased for protection from the environment.

Similarly a side rail is a secondary. Safe roof purlins spans. Light gauge cold formed steel roof purlins replace heavier hot rolled steel angle and channel sections. Cee purlins are secondary steel framing members most commonly used as roof purlins wall girts and header jamb and sill for windows and doors on metal buildings.

High pressure zones kl 1 5 and 2 0 included. 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. In the past the majority of roof structures were of wooden construction but over the past 15 to 20 years there has been a vast shift away from wood to metal mainly steel roof construction. They give added support to the roof and also provide a nailing surface for the end panels and drip edge.

The shape of cee purlins does not allow end lapping they are butted together. The typical spacing standards for residential and commercial buildings are about 1 to 2 foot. Purlin plate principal purlin and common purlin. Welded together they can be used as columns braces and ties.

Purlins traditionally support the roof deck cladding sheeting and are in turn supported by the principal rafters steel beams etc. The purlin transfers load from the roof cladding to the primary steel rafters. For heavier material such as gage steel the metal roof purlins spacing length could go up to 4 feet. Purlins roof systems our zed purlin product range consists of a fully compatible range of z section profiles made from cold rolled steel in depths ranging from 142mm to 342mm deep.

In addition our zed section purlins come with a wide range of compatible accessories and can be supplied for the majority of cladding types and designs. A purlin is a secondary structural member that spans between the primary steel frames to support the roof cladding. Cpe 0 9 and cpi 0 2.