The answer to 'why is my metal roof' is that there are several common causes for issues with a metal roof, including improper installation, weathering and corrosion, and damage from extreme weather events. Symptoms may include leaks, rusting, loose fasteners, and visible damage to the roofing panels.
In many cases, minor issues with a metal roof can be addressed through DIY repairs, such as tightening loose screws, sealing leaks, or replacing damaged panels. However, for more extensive damage or complex problems, it's best to call in a professional roofing contractor who can properly assess the situation and recommend the appropriate solution.