Roof Purlin Material

The roof deck is the wood panel ply board or metal sheeting that creates the surface of the roof.

Roof purlin material.

When made of wood it is usually covered with some sort of weatherproofing and sometimes an insulation material. These structural supports run perpendicular across the rafter beams. For heavier material such as gage steel the metal roof purlins spacing length could go up to 4 feet. The typical spacing standards for residential and commercial buildings are about 1 to 2 foot.

Engineered purlin metal mart offers a complete line of engineered purlin material. They both can be combined well to make sure that the space below the roof. It is suitable to use for roof sheeting from fiber cement. The purpose of purlins.

The purlins of a roof support the weight of the roof deck. Several kinds of purlins exist. For the lighter material such as lightweight aluminum the common spacing length is 4 inches of clear gap. Purlins are an important component in a pre engineered steel structural kit.

Also known as sheeting rails purlins create the roofing members of the secondary framing of a steel building. The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. 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.