The answer to 'signs of metal roof damage' is that there are several common indicators that a metal roof may need repair or replacement. These include visible rust, holes or punctures in the metal, loose fasteners, missing sealants, and excessive leaking during rainstorms. Over time, metal roofs can become damaged by exposure to the elements, hail, falling debris, and other factors.
Metal roofs generally last 40-70 years with proper maintenance, but damage can occur sooner. Homeowners should regularly inspect their metal roof for any signs of deterioration and address issues promptly to prevent further damage and leaks. If significant damage is found, it's best to consult a professional roofing contractor to evaluate the extent of the problem and provide recommendations for repair or replacement.