Roof Framing C Purlin

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

Roof framing c purlin.

Welded together they can be used as columns braces and ties. The shape of cee purlins does not allow end lapping they are butted together. As long the structure has a roof frame c purlins are present. Purlins are installed horizontally under metal roofs.

Stratco steel framing range. Purlins traditionally support the roof deck cladding sheeting and are in turn supported by the principal rafters steel beams etc. They just vary from the type of material wood or steel thickness and length. These structural supports run perpendicular across the rafter beams.

Also known as sheeting rails purlins create the roofing members of the secondary framing of a steel building. 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. Engineered purlin metal mart offers a complete line of engineered purlin material.

Purlins are an important component in a pre engineered steel structural kit. Manufactured from hi tensile zinc alum steel stratco roof and. They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top. The usage of c purlins can range from different type of structures residential commercial or agricultural.

They give added support to the roof and also provide a nailing surface for the end panels and drip edge. The purpose of purlins. Here are some examples of their application. 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.

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. It supports a wide range of floor cladding and is a strong long lasting lightweight alternative to timber framing.