Should roofing nails be visible in the attic? I replaced the roof a few months ago and realized the roofing nails stick out in the attic, which was not there before. This might can cause leaking, moisture, and mold. I believe they used the wrong size of the nail. What do you suggest? roof company said it is "standard" Thank you in advance!
It’s not ideal, but it’s also not uncommon or a big issue. The shingles overlap and the nails are under another shingle. Regardless of the length, there is a puncture hole. Personally, I wouldn’t sweat it.
I've never been in an attic where you couldn't see the roofing nails. If they didn't penetrate the wood they wouldn't have much grip...
@Jennifer Chun most sheeting is only 1/2" or 5/8" thick so if you dont see nails on the other side its likely you wouldnt have much penetration.
If I may ask what leads you to believe this would cause leaks and mold ?
Thank you for your reply.
@Jennifer Chun totally fine to have nails poking through
They only should be 1/4 -3/8 of inch through. If they are significantly more it could create a spot for condensation to drip. They need to be through the wood but not to long. 1 layer shingles should have inch and quarter nails used. 2nd layer shingles inch and three quarters during install.
Roofing nails poking through is not a problem from a roof integrity standpoint. The only issue is the discomfort that may occur should you bump your head on one while working underneath.
Thank you for replies