Use the grip rite 11 x 1 1 4 in.
Roofing nails protruding.
Roofing contractors have told me electro galvanized nails that stick out past the sheathing edge can attract water which can prevent the wood deck from absorbing the moisture and rotting.
Or there is spray foam insulation to consider if that works with your other insulation and vapor barrier situation.
Hammer a new nail into the roof about 1 inch above the hole from the previous nail.
3 degree electro galvanized steel roofing nails 5 lb pack for applying roofing asphalt shingles insulation board and felt to wood substrates.
3 use the grip rite 11 x 1 1 4 in.
Of the cutting methods the cut off wheel sounds the best to me.
A roofing nail should have a minimum nominal shank diameter of 12 gauge 2 67 mm and a minimum head diameter of 9 5 mm.
All nails must be corrosion resistant.
We just had a new asphalt shingle roof put on and were concerned because hundreds of the roofing nails used to nail down the shingles are protruding through the overhangs of the eaves.
There is a nifty little lever shovel type thingy that catches on the roofing nails and pulls them back up through the.
Our contractor said b c our decking was so thin 3 8 the 1 1 4 nails protruded but its ok b c if he used 3 4 shorter nails it would risk.
For example galvanized by various processes aluminium copper or stainless steel.
A large nail head and heavier shank gauge provide greater holding power.
Roofing nail should have a barbed shank until the head which eliminates nail pops blow offs and roof leaks.
If you have a friend in the attic ask him to direct you to a sturdy spot where the nail can bite into the wood.