Nails Backing Out Of Roof

Nail is backing out of decking and pushing through the shingle causing a penetration point for moisture.

Nails backing out of roof.

It is vitally important that roofing nails of the correct length were used to secure the shingles. Nothing keeps hand nails from backing out. If it is just in the area of the the spar you showed us then it might be further evidence of past damage. There are all sorts of reasons why nails back out of seemingly solid wood but perhaps the most common reason is that the nail did not get a good bite into the wood when it was first driven.

Hammer a new nail into the roof about 1 inch above the hole from the previous nail. Apart from roofing shingles roofing nails can sometimes back out. Gun nails have a couple ridges in them from the wire collation. Joined sep 17 2008.

That keeps the gun nails from backing out of the wood. But what is difficult is keeping the slick sided hand nails from backing out of the roof decking. Such little holes are typically unnoticeable to an untrained eye however a good roofing inspector is trained to see the signs of nails backing out. This leaves small holes that water can easily penetrate and leave your shingles unstable.

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. Also is that the only place you have an issue with nails backing out or are they backing out all over. A gun nailed roof properly installed is a better roof than a hand nailed roof.