Roofing Screws In The Ridge Or Flat

On the ridges can distort the metal.

Roofing screws in the ridge or flat. The idea being that the longer screws in the valley hold the sheet down and the shorter screws on the ridges keep the wind from picking up the sheet. The main cause of a leaking roof on a diy metal roofing installation is incorrectly fastening the screws. 250 brown 12 x 1 1 2 hex regrip sheet metal roof screw. Attach ridge cap to rib of roof panel with screws on every rib along both sides of rib.

Valid arguments can be made for both preferences. Quite often the screws are over tightened or under tightened and when this happens it creates leak points. As the screws are driven the washer presses against the metal roofing to form a water proof seal. Metal moves some heat cold expansion and makes a bigger hole in metal for a leak.

Place large tab closure between the ridge cap and the roof panels. Having done several metal roofs since then i would say if you are an amateur screw on the flat with 1 1 2 screws. Screwing high on the rib is difficult for the amateur. Screws in the flat nails on the ridge.

Sharp point metal to wood siding screws. Make sure and not get them too tight don t squish the rubber gasket just nice and snug. Make sure to screw through closures. Ridge cap should be end lapped 6 inches at each end.

I strap all roofs with nothing less than 2 4 to help lock that roof in place. 4 6 out of 5 stars 10. Your roof will have thousands of screw holes.