Roof Framing C Purlin

Also known as sheeting rails purlins create the roofing members of the secondary framing of a steel building.

Roof framing c purlin.

The shape of cee purlins does not allow end lapping they are butted together. The usage of c purlins can range from different type of structures residential commercial or agricultural. Purlins traditionally support the roof deck cladding sheeting and are in turn supported by the principal rafters steel beams etc. These structural supports run perpendicular across the rafter beams.

Engineered purlin metal mart offers a complete line of engineered purlin material. Here are some examples of their application. Manufactured from hi tensile zinc alum steel stratco roof and. It supports a wide range of floor cladding and is a strong long lasting lightweight alternative to timber framing.

Stratco steel framing range. They just vary from the type of material wood or steel thickness and length. Welded together they can be used as columns braces and ties. 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.

The purpose of purlins. What are c section purlins. 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. They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top.

Purlins are 2 by 4 feet and are installed much like metal roofing. Purlins are installed horizontally under metal roofs. 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. As long the structure has a roof frame c purlins are present.

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. Stratco roof battens and ceiling battens are light yet strong offering an economical alternative to timber battens.