Roof Framing C Purlin

In architecture structural engineering or building a purlin or historically purline purloyne purling perling is any longitudinal horizontal structural member in a roof except a type of framing with what is called a crown plate.

Roof framing c purlin.

C section purlins or cee section purlins are designed to form the walls and floor joists of a building shell structure making them also ideal for supporting beams needed for mezzanine flooring. Available in cee or zee shape red oxide primed or galvanized 16 14 or 12 gauge sizes from 4 up to 12 flange widths of 1 1 2 up to 4 cut to your specified lengths hole punching available load tables available for all material. What are c section purlins. As long the structure has a roof frame c purlins are present.

Also known as sheeting rails purlins create the roofing members of the secondary framing of a steel building. Welded together they can be used as columns braces and ties. Manufactured from hi tensile zinc alum steel stratco roof and. Purlins traditionally support the roof deck cladding sheeting and are in turn supported by the principal rafters steel beams etc.

They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top. Stratco roof battens and ceiling battens are light yet strong offering an economical alternative to timber battens. Purlins are an important component in a pre engineered steel structural kit. Here are some examples of their application.

The shape of cee purlins does not allow end lapping they are butted together. They give added support to the roof and also provide a nailing surface for the end panels and drip edge. They just vary from the type of material wood or steel thickness and length. The purpose of purlins.

Stratco steel framing range. The usage of c purlins can range from different type of structures residential commercial or agricultural. It supports a wide range of floor cladding and is a strong long lasting lightweight alternative to timber framing. A traditional purlin strictly by definition is a horizontal structural member in a roof.

Purlins are 2 by 4 feet and are installed much like metal roofing. 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.