Engineered purlin metal mart offers a complete line of engineered purlin material.
Metal building roof purlins.
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.
Girts and purlins may also be called sheeting rails.
They give added support to the roof and also provide a nailing surface for the end panels and drip edge.
Used for roof and walls on metal buildings.
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.
Metal roof 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.
Metal building purlin spacing.
Purlins are 2 by 4 feet and are installed much like metal roofing.
Purlins perform the same service for the roof panels.
Metal building roof purlins provide three structural functions.
The shape of cee purlins does not allow end lapping they are butted together.
They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top.
Hints the name pb for purlin bearing.
Thirdly purlins add additional support between the spans of the individual framing bays.
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.
Girts and purlins are components of the secondary frame of a metal building.
First the purlins support the roof.
Welded together they can be used as columns braces and ties.
Secondly purlins tie the rafters together stabilizing and strengthening the structure s rigid framing.