Alternatively or in addition you can drive a new nail nearby for a fresh stronger hold into decking.
Seal nail heads on roof.
3 use the grip rite 11 x 1 1 4 in.
Seal nailheads and craters with primer.
When you lay the flashing down make sure it is flush with the drip edges at the bottom of the valley.
They should be re nailed.
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Seal roof nail heads.
3 degree electro galvanized steel roofing nails 5 lb pack for applying roofing asphalt shingles insulation board and felt to wood substrates.
Also look for loose nails and exposed nail heads.
Steve shows how to fix rusty nail heads for painting projects.
Fill small nail holes with silicone caulk or roof cement.
Use the grip rite 11 x 1 1 4 in.
Remember to seal over the nail heads.
You can seal any seams with roofing cement and nail heads as well for extra protection.
To fix most leaks simply remove the old screw and replace it with a new one.
Also place the nails high so the next course of shingles will cover them.
Smaller nail holes will be permanently fixed by this method standard roofing nails would be either 3 8 inch or 1 2 inch making a hole.
Trim as needed with your tin snips.
Set the top part of the vent on the pipe.
Once the kick flashing and first piece of step flashing are secure you have to apply a shingle.
For loose nails that have yet to push through shingles you can lift up the shingle and hammer the rising nails back down.
Roofing nails per side photo 2.
Then fill the craters with caulk.
Rubber vent flashing automatically adjusts to any pitch lift the vent enough to spread caulk under the sides but not the bottom edge then nail with three 1 1 4 in.
Typical roofing screws have a 1 4 inch hex head and can be recognized by a large rubber washer at the end.
Use roofing cement and two nails to secure it to the roof deck.
Place the nails on the base of the step flashing piece so you re nailing into the deck.