Roof Purlins Steel

Roof purlins are used for fastening metal roof panels.

Roof purlins steel.

Purlins are non pressure treated 1 x 4 x 12 lumber that is installed on to the roof in a specific layout pattern and screw pattern. The shape of cee purlins does not allow end lapping they are butted together. C and z span load table. Purlins are an important component in a pre engineered steel structural kit.

They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top. The purpose of purlins. Purlins are 2 by 4 feet and are installed much like metal roofing. Purlins are installed horizontally under metal roofs.

Purlins are 2 by 4 feet and are installed much like metal roofing. The typical spacing standards for residential and commercial buildings are about 1 to 2 foot. Welded together they can be used as columns braces and ties. Engineered purlin metal mart offers a complete line of engineered purlin material.

They are available in galvanized and stainless steel and can be coated in zam and or prime painted. For heavier material such as gage steel the metal roof purlins spacing length could go up to 4 feet. Steeline c purlins are available in different sizes and material strengths to match the design specification of your building. Also known as sheeting rails purlins create the roofing members of the secondary framing of a steel building.

These structural supports run perpendicular across the rafter beams. 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. In this section you ll find sample calculations for determining wind and snow loads as well as z purlin and z girt weight tables. The purlins are in turn supported by rafters or walls.

The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. They give added support to the roof and also provide a nailing surface for the end panels and drip edge. They give added support to the roof and also provide a nailing surface for the end panels and drip edge. Do all roofing projects require purlins.

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. Steeline c purlins are made from quality galvaspan steel and are roll formed to length with holes punched to your specification.