They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top.
Roof purlin dimensions.
Pre engineered metal building components.
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.
By supporting the rafters they allow longer spans than the rafters alone.
Metal roof purlins are installed horizontally under metal roofs.
The typical spacing standards for residential and commercial buildings are about 1 to 2 foot.
Z purlins and girts c purlins and girts eave struts open track angle purlin and girt clips standing seam roof panel.
Purlins are installed horizontally under metal roofs.
We manufacture any component from 1 2 steel subgirts to 12 section up to 10 gauge.
Generally it will be manufactured due the requirement of the customers.
Available in a variety of sectional properties lengths and sizes.
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.
Like the z purlin the c purlin takes its name from its shape.
Purlin plates in wooden construction.
The roof purlin sizes of both shapes are ranging in length and thickness.
Purlins are 2 by 4 feet and are installed much like metal roofing.
Contact flexospan for information on custom purlin and girt structural steel dimensions.
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 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.
Roof hugger retrofit sub purlins are zee shaped structural members that are typically 10 to 12 feet in length.
Metal mart offers a complete line of engineered purlin material.
They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top.
The term plate means a major horizontal supporting timber.
They give added support to the roof and also provide a nailing surface for the end panels and drip edge.
A purlin plate in wood construction is also called an arcade plate in european english under purlin and principal purlin.
Purlin plates are beams which support the mid span of rafters and are supported by posts.
For the lighter material such as lightweight aluminum the common spacing length is 4 inches of clear gap.
Steel z purlins and z girts are also available with other depths and flange widths.
Steel roof purlins and wall girts are produced and available in house.
