Roof Purlin Material

For the lighter material such as lightweight aluminum the common spacing length is 4 inches of clear gap.

Roof purlin material.

It is suitable to use for roof sheeting from fiber cement. Engineered purlin metal mart offers a complete line of engineered purlin material. When made of wood it is usually covered with some sort of weatherproofing and sometimes an insulation material. 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 purlins of a roof support the weight of the roof deck. They both can be combined well to make sure that the space below the roof. All about purlin span for metal roof. Do all roofing projects require purlins.

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. Several kinds of purlins exist. The purpose of purlins.

The roof deck is the wood panel ply board or metal sheeting that creates the surface of the roof. 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. Purlins are an important component in a pre engineered steel structural kit.