If you do have any that are pushing up a shingle dan what i would do is i would get up there and lift up the loose tab of the shingle and try to nail those back down again.
How to repair nail pops on roof.
Press the piece of felt paper into the fresh cement making sure the crease in the paper faces up towards the roof.
Watch the video to learn what causes this and how.
Hammer a new nail into the roof about 1 inch above the hole from the previous nail.
Repair popped nails with screws.
If the roof nail pops are dealt with immediately a fix can be quite simple.
Or you could put another nail next to the one that s loose and cover the head of the loose nail with the new one that you re putting in.
Here is the link fo.
Just tapping the nail back down with a hammer will solve the immediate problem but eventually the nail will probably work its way back out.
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.
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The shingle can now be laid back flat on the roof.
Removing and replacing the loose nails and sealing the roof shingles down will take care of the problem and will prevent other more expensive damages from occuring.
Here is a fast and perfect fix anyone can do.