Roof Purlin Material

For heavier material such as gage steel the metal roof purlins spacing length could go up to 4 feet.

Roof purlin material.

Engineered purlin metal mart offers a complete line of engineered purlin material. For the lighter material such as lightweight aluminum the common spacing length is 4 inches of clear gap. When made of wood it is usually covered with some sort of weatherproofing and sometimes an insulation material. All about purlin span for metal 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. These structural supports run perpendicular across the rafter beams. The purlins of a roof support the weight of the roof deck. Do all roofing projects require purlins.

Purlins are an important component in a pre engineered steel structural kit. 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 purpose of purlins. Also known as sheeting rails purlins create the roofing members of the secondary framing of a steel building.

The roof deck is the wood panel ply board or metal sheeting that creates the surface of the roof. Several kinds of purlins exist. They both can be combined well to make sure that the space below the roof.