Continue across the roof until it is completely covered lapping over the previous panel by at least 2 5 inches 6 4 cm minimum.
Roof purlin screws.
Do all roofing projects require purlins.
The 12 purlin fastener is a self drilling fastener engineered to secure single ply roofing membrane to structural steel purlins 16 ga.
There will be four screws per screw line placed in the high of the corrugated panel.
The holes near the ends were not a question for putting the screws into the wood.
We made sure on the center of each purlin or girt to use a block of wood as a support wall girts or in case of the roof purlins a lever to push the center into alignment.
The screws are spaced out so that every third corrugation has a screw.
The diagram above is a typical 37 wide panel and the spacing works out perfectly.
Screw down the panels.
Purlin fastener omg purlin fasteners are designed for attaching single ply membrane systems to structural steel purlins 12 18 gauge in standing seam metal roof retrofit applications.
Cd 10 structural concrete fasteners.
To 3 16 in standing seam metal roof recover applications.
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.
Your roof will have thousands of screw holes.
The main cause of a leaking roof on a diy metal roofing installation is incorrectly fastening the screws.
A screw line is a row of screws that is spaced at a specific distance from the next row of screws.
Fasteners fixing roof profile heights fixing roof profile heights per sq metre 18mm to 29mm 40mm to 62 5mm to purlins to purlins 1 2mm to 5mm thick 1 2mm to 5mm thick see sheeting manufacturers recommendationsteks fibreglass teks fibreglass m6 5 14 x 65mm hex hd m6 5 14 x 85mm hex hd 6 310 0607 7cs 6 310 0626 6cs.
Xhd extra heavy duty 15 roofing fasteners.
The omg purlin fastener is available in five sizes from 3 75 to 8 inches.
Find a distributor find an omg representative.
Lay the first purlin at the ridge of the roof down to the chalk line beginning at either corner.
Pre drill the holes and use 10 by 2 in 25 4 by 5 1 cm screws with polycarbonate washers.
Screwing or fastening down a metal roof is one of the easiest parts of a metal roofing installation but it s also the most problematic.
Because they are near the ends the holes were right on.
Fasten the purlin with 16d common nails into each vertical rafter.
The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to.
Standard 12 roofgrip drill point fasteners.
Heavy duty 14 roofing fasteners.
