guest guest
12/26/2011
We have a metal roof about 17 years old. I have noticed that some of the screws are backing out. When I have tried gently tightening them many no longer have purchase on the plywood underlayment. What is the best way to secure these loose screws?
Todd Miller
Classic Products, Inc.
12/26/2011
It might be helpful to replace the screws with screws of larger diameter.

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