Purlin Hex Roof

A common arrangement is a rafter and purlin system which combines purlins and rafters.

Purlin hex roof.

There is a chance of damaging roofing sheets if you are failed to do so. The adjustable brace offers up to 20mm of adjustment. E purlins are design engineered to maximise the efficient use of material and time. They are available in a range of lengths from 3m to 12m with longer lengths available by special manufacture.

The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. In the past the majority of roof structures were of wooden construction but over the past 15 to 20 years there has been a vast shift away from wood to metal mainly steel roof construction. The width of metal panels will determine the rafter spacing. Lay the first purlin at the ridge of the roof down to the chalk line beginning at either corner.

The omg purlin fastener drills through steel up to 12 ga. 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. Low profile hex head has a smooth surface to ensure that there is no damage to the membrane. In timber construction purlins are nailed to the rafter or supporting trusses while in steel roof construction they are welded or bolted to the rafters or trusses by the means of cleats.

Purlins traditionally support the roof deck cladding sheeting and are in turn supported by the principal rafters steel beams etc. The drill point allows the fastener to be drilled through the purlin before the threads engage into the standing seam metal roof. Where the end purlin spacing is less than 800mm an adjustable end brace with a bolted end cleat is available as twisting of the end cleat is not practical. As structural members they resist loads.

The purlin is adjusted into line and the 12mm diameter hex flange bolts on the brace tightened. The roof support system is a ridgepole and either rafters which run perpendicular from the top of the walls to the ridge or purlins which run parallel to the ridge. Insert two equally spaced nails into the rafter. Fasten the purlin with 16d common nails into each vertical rafter.

The jm purlin fastener is a steel coated fastener with a hex head and 19 mm drill point. E purlin offers the greatest flexibility in the design of stick roofs clad with tile or metal sheeting. 2 8 mm in seconds. Roof purlin are members used to directly support roof sheeting materials and could be made of timber or steel.

20 mm drill point allows the fastener to be drilled through the purlin before the threads engage into the standing seam metal roof. The wider the roofing panels the greater spacing distance you should put.