Metal Building Roof Purlins

Metal building purlin spacing.

Metal building roof purlins.

Used for roof and walls on metal buildings. Secondly purlins tie the rafters together stabilizing and strengthening the structure s rigid framing. They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top. Purlins perform the same service for the roof panels.

Girts and purlins may also be called sheeting rails. Welded together they can be used as columns braces and ties. Compared to conventional roofing system it might be a bit pricier in terms of installation but also has longer durability to provide better value for the future. This panel is the same configuration as r panel with the exception of a longer leg on one side of the panel that bears down on the roof purlin.

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. Engineered purlin metal mart offers a complete line of engineered purlin material. Purlins are 2 by 4 feet and are installed much like metal roofing. First the purlins support the roof.

A commercial industrial panel that is widely used for metal buildings thru out the industry to cover walls. Girts and purlins are components of the secondary frame of a metal building. 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. Metal roofs are often referred as tin roofs in the past because of the use of tin such as aluminum or stainless steel sheets as the materials.

Hints the name pb for purlin bearing. Thirdly purlins add additional support between the spans of the individual framing bays. Metal roof purlins are installed horizontally under metal roofs. Metal building roof purlins provide three structural functions.