Roof Purlin Screws

Xhd extra heavy duty 15 roofing fasteners.

Roof purlin screws.

The main cause of a leaking roof on a diy metal roofing installation is incorrectly fastening the screws. Do all roofing projects require purlins. There will be four screws per screw line placed in the high of the corrugated panel. 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.

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. Snap a chalk line horizontally across the roof two feet down from the top. The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to.

Continue across the roof until it is completely covered lapping over the previous panel by at least 2 5 inches 6 4 cm minimum. The diagram above is a typical 37 wide panel and the spacing works out perfectly. Cd 10 structural concrete fasteners. Fasten the purlin with 16d common nails into each vertical rafter.

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. Your roof will have thousands of screw holes. Heavy duty 14 roofing fasteners. Lay the first purlin at the ridge of the roof down to the chalk line beginning at either corner.

The screws are spaced out so that every third corrugation has a screw. The holes near the ends were not a question for putting the screws into the wood. Because they are near the ends the holes were right on. Find a distributor find an omg representative.

A screw line is a row of screws that is spaced at a specific distance from the next row of screws. Adjust the lap so that the last panel completes the coverage without making a cut lengthwise. The 12 purlin fastener is a self drilling fastener engineered to secure single ply roofing membrane to structural steel purlins 16 ga. 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.

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. Screw down the panels. Insert two equally spaced nails into the rafter.