Roof Purlin Metal

They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top.

Roof purlin metal.

Purlin is a well known material in the field of architecture structural building or structural engineering. Purlin plate principal purlin and common purlin. Metal roof purlins are installed horizontally under metal roofs. A purlin or historically purline purloyne purling perling is a longitudinal horizontal structural member in a roof in traditional timber framing there are three basic types of 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. The steel purlins are in turn supported by rafters or walls. We are specalised in roofing sheet metal purlin pre engineered building roof ventilator and much more. Purlins also appear in steel frame construction.

Steel purlins may be painted or greased for protection from the environment. The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. The topic we want to discuss today is the purlin installation. They give added support to the roof and also provide a nailing surface for the end panels and drip edge.

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. In the past the majority of roof structures were of wooden construction but over the past 15 to 20 years there has been a vast shift away from wood to metal mainly steel roof construction. 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. Metal c purlins are light in weight and perfect for simple span construction.

Ds roof tech provides a wide range of roofing solutions by its incredible finishing with multi color coated option which helps in preventing heat and fight against heavy wind. The decking is sized to resist the bending caused by these loads. There is an available purlin for every type of roofing material including purlin span for metal roof which is the most common material type to use this item. Purlins are 2 by 4 feet and are installed much like metal roofing.

Corrugated metal deck and siding is used for roofs and walls respectively to span between purlins for roof loads or between girts for wind loads. Roof decking is often also used as a diaphragm to transfer wind or seismic loads to the lateral bracing system below. In addition our c section purlins can also be used for door framing roof trimming window trimming parapet rails and side rails also see z purlins page. All of our c section purlins have equal extensions on their sides meaning they can be used in single spans.