Roof Purlin Dimensions

Purlin plates are beams which support the mid span of rafters and are supported by posts.

Roof purlin dimensions.

Roof hugger retrofit sub purlins are zee shaped structural members that are typically 10 to 12 feet in length. For the lighter material such as lightweight aluminum the common spacing length is 4 inches of clear gap. Metal roof purlins are installed horizontally under metal roofs. Dimension a dimension b dimension c available gauges finish weight per.

They give added support to the roof and also provide a nailing surface for the end panels and drip edge. Steel roof purlins and wall girts are produced and available in house. Pre engineered metal building components. Metal mart offers a complete line of engineered purlin material.

For heavier material such as gage steel the metal roof purlins spacing length could go up to 4 feet. They give added support to the roof and also provide a nailing surface for the end panels and drip edge. Purlins are 2 by 4 feet and are installed much like metal roofing. Like the z purlin the c purlin takes its name from its shape.

The standard of purlin length will vary anywhere between 100 to 300 mm while the thickness will vary anywhere between 1 to 3 mm. Available in a variety of sectional properties lengths and sizes. 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. They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top.

Purlin plates in wooden construction. Purlins are installed horizontally under metal roofs. The term plate means a major horizontal supporting timber. They are made from 16 ga 0 060 min 50 ksi structural grade g 90 galvanized steel and specifically notched to fit over the ribs of the existing metal roof panels.

Steel z purlins and z girts are also available with other depths and flange widths. The typical spacing standards for residential and commercial buildings are about 1 to 2 foot. By supporting the rafters they allow longer spans than the rafters alone. Purlins are 2 by 4 feet and are installed much like metal roofing.

We manufacture any component from 1 2 steel subgirts to 12 section up to 10 gauge. Z purlins and girts c purlins and girts eave struts open track angle purlin and girt clips standing seam roof panel. The roof purlin sizes of both shapes are ranging in length and thickness. Secondary structural steel members z purlins and girts.

Contact flexospan for information on custom purlin and girt structural steel dimensions.