Roof Underlayment Beneath Metal Panels
Our GC used a non high temp, granulated underlayment under our metal roof panels. A roofing specialist has recommended we replace the entire roof deck with new underlayment. We’re trying to avoid replacing the entire roof deck – could we just take off the metal panels and lay a smooth, high temp underlayment over the granulated one and then put the panels back on? Or would the wrong underlayment underneath continue to cause problems? Any other suggestions?
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