TOPIC: I Have An Existing Metal Roof and Have A Question
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What is the real time frame and/or tests that can be conducted on the screws on a metal roof, before the screws need to be replaced. Everyone has an opinion.
Every application could be different based on the structure, its construction, the screws, and even the roof panels. If the screws loosen, it will become apparent visually. What I often hear from the field is screws have to be tightened after about 7 years and then replaced with a larger diameter screw about year 15.
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