Use high quality metal self tapping screws with thin washers to be sure you have a secure seal.
Metal roof panel screws.
1 inch and 2 inch.
Your roof will have thousands of screw holes.
Allsteel carries screws in 2 different lengths.
Screws that are installed in the low of the metal roofing panel will result in a more secure connection but will be less weather tight.
The 1 inch variety is the best all purpose size.
The screw will compress better when attached in the low and you are less likely to distort the metal roofing panel when you tighten the screw.
These metal roofing screws include integrated epdm washers micro bit drill points and a wide variety of powder coated paint options to blend in perfectly with your metal roof.
The woodbinder line of metal to wood pole barn screws from st fastening are created specifically to attach metal roof panels to wood substrates.
Screws will not bend or work themselves loose during normal expansion and contraction.
Find roofing screws at lowe s today.
The main cause of a leaking roof on a diy metal roofing installation is incorrectly fastening the screws.
To make sure you have your corrugated roofing properly spaced allsteel metal roofing has a great guide on measurements in case your corrugated roof didn t come with pre drilled screw holes.