Nail holes in a roof can come from nails that have slightly pulled out over time holes that were not covered during a re roof or nails that were pulled out of mounting holes when items like.
Roof every nail leaks.
Another reason for nails backing out or nail pops is the angle that the nail was driven in.
If shingles get lifted or torn from high winds the damaged shingle exposes nails holding the shingle below it.
If the nail is angled too much the nail head will not be flush with the shingle and may eventually back out.
You might find holes left over from a satellite dish or antenna mounting brackets or just about anything.
A nail pushing through shingles means a broken shingle and the more nail pops the greater the chances of a leaking roof.
And just one rusted out nail can cause your roof to leak every time it rains.
Roof nail leaks can happen when roof nails have been loosened slightly from high winds or have simply pulled out over time.
These nails will eventually rust.
Not every roofing nail finds its mark.
And exposed misplaced roofing repair nails should be pulled and the holes patched.
If one has missed the rafters and protrudes into the attic it is a candidate for water damage.
What causes exposed roofing nails.
Holes in shingles will lead to water damage inside your home.
In fact shingle nail pops are one of the most common causes of roof leaks.
On cold nights in an unheated attic the exposed metal nail can frost up hence the shiner.
If any of these isn t then the roofing nail can back out possibly causing a hole in the shingle.