Metal Roof Purlin Sizes

The standard of purlin length will vary anywhere between 100 to 300 mm while the thickness will vary anywhere between 1 to 3 mm.

Metal roof purlin sizes.

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. Galvanized metal purlins and red prime painted metal purlins. The typical roof structure now consists of steel i beam rafters placed approximately 10 feet this varies depending on purlin size and other variables apart with either 4 6 or 8 lightweight steel purlins installed horizontally across the rafters. If you want to know how to support roof purlins they are usually supported by 2 4 or 2 6 struts or posts.

Would 1x4 be enough. Get a quote today. Because i am using metal panel roofing i am not putting down any plywood decking. The roof is a 6 12 pitch and would not normally be stepped on.

Cee purlins are secondary steel framing members used for roof and wall support as well as a header sill brace and more. 14 gauge metal purlins steel purlins. For 2x4s purlins the posts are spaced in 4 feet distance. For the lighter material such as lightweight aluminum the common spacing length is 4 inches of clear gap.

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 steel 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. Metal mart offers a complete line of engineered purlin material.

It often depends on the wideness thickness and the types of roofing materials the climate it has to withstand and many other factors. I am installing purlins horizontal to the rafters. Available in red oxide or galvanized cee purlins are cut to the nearest 1 8. Do all roofing projects require purlins.

Twist is measured with the zee laying on a flat surface under its own weight. My rafters are 2x6 ridge beam is 2x8 collar ties 2x6. We do recommend it however. Located in phoenix arizona.

Net variation for combned dimension. 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.