Purlins traditionally support the roof deck cladding sheeting and are in turn supported by the principal rafters steel beams etc.
Purlin hex roof.
Roof purlin are members used to directly support roof sheeting materials and could be made of timber or steel.
The jm purlin fastener is a steel coated fastener with a hex head and 19 mm drill point.
20 mm drill point allows the fastener to be drilled through the purlin before the threads engage into the standing seam metal roof.
Snap a chalk line horizontally across the roof two feet down from the top.
The wider the roofing panels the greater spacing distance you should put.
2 8 mm in seconds.
Fasten the purlin with 16d common nails into each vertical rafter.
The drill point allows the fastener to be drilled through the purlin before the threads engage into the standing seam metal roof.
They are available in a range of lengths from 3m to 12m with longer lengths available by special manufacture.
E purlins are design engineered to maximise the efficient use of material and time.
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.
A common arrangement is a rafter and purlin system which combines purlins and rafters.
E purlin offers the greatest flexibility in the design of stick roofs clad with tile or metal sheeting.
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.
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.
The omg purlin fastener drills through steel up to 12 ga.
The width of metal panels will determine the rafter spacing.
Do all roofing projects require purlins.
As structural members they resist loads.
Insert two equally spaced nails into the rafter.
The purlin is adjusted into line and the 12mm diameter hex flange bolts on the brace tightened.
The adjustable brace offers up to 20mm of adjustment.
Lay the first purlin at the ridge of the roof down to the chalk line beginning at either corner.
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.
There is a chance of damaging roofing sheets if you are failed to do so.
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.
