I have a 6 year old steel roof a older home that I purchased last
This spring I noticed that many of the screws are loose and not tight to the
The asphalt shingles were removed prior to the steel roof being applied.
The sheathing is not sheathing - it's 2 X 6 cedar laid diagonally on the
rafters. The screws are 1 1/2" long.
I live in a northern climate, not unlike Spokane, Washington (less snow).
Does anyone know what is causing the screws to loosen or lift?