Roofing Screws Too Long For Metal Roof

If water has seeped under the roof material the underlying material may become damaged.

Roofing screws too long for metal roof.

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. Screws will not grip well on a rotted wood surface. This applies to the gable edge and the bottom end of the roof. Screws may not be able to grip the underlying material enough to properly hold the metal roof down.

The purpose of the spacing is related to the drip edge. 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. You might be tempted to throw caulk at the problem but that solution won t last long.

Water damage to underlying material. Pipe flashing covered by too few screws. There s really no fix other than replacing the damaged vents. Remember a screw down metal roof has the fasteners exposed through the top of the panels.

Some roofers make the mistake of letting the metal panels extend too much or too little over the roof s edge. 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. Let the panel overhang by about an inch and a half to 2 inches.