I have two different types of steel roof. The one on my business is standard metal panels that are screwed down. 35 years old and will probably go another 50 but there is one problem. Expansion and contraction will cause some of the screws to loosen and need to be tightened occasionally which is not an easy job.
At my home I have a standing seam steel roof. Snow slides off better and no visible screws.....totally maintenance free.
I think the prices are comparable but standing seam is a much better option.
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