nails poking out in ceiling of storage bldg.
Just got a storage building and there are a gazillion nails sticking out ( down) on the inside of the ceiling, I guess from hammering the shingles down .
Question is : I hammered a few of the nails down sideways in order to get the points flush with the ceiling.
In doing so it appears to have made those nails loose.
Will this cause any leakage when it rains and if so, what should I do now to prevent the such?
Thank you !