Roofing Screws Too Long For Metal Roof

The metal roof paneling is supposed to end up about two to three inches below the home s vented ridge and should be two to three inches beyond the roof s eaves according to absolute steel metal roofing instructions.

Roofing screws too long for metal roof.

If water has seeped under the roof material the underlying material may become damaged. Let the panel overhang by about an inch and a half to 2 inches. Replace them with rubber washered screws. Water damage to underlying material.

9 10 12 and procap metal to wood screws are 1 4 hex head screws 12 14 and proz metal fasteners are 5 16 hex head screws. Remember a screw down metal roof has the fasteners exposed through the top of the panels. Pipe flashing covered by too few screws. Screws will not grip well on a rotted wood surface.

Also look for pulled or missing nails at the base s bottom edge. Check for cracked housings on plastic roof vents and broken seams on metal ones. Some roofers make the mistake of letting the metal panels extend too much or too little over the roof s edge. There s really no fix other than replacing the damaged vents.

The purpose of the spacing is related to the drip edge. Due to its lack of expansion and contraction these fasteners get wallowed out until they re too big for the screws that hold the metal panels down. This applies to the gable edge and the bottom end of the roof.