The answer to 'why is my metal roof worn out' is that metal roofs can become worn out over time due to a variety of factors, including exposure to the elements, improper installation, and lack of maintenance. Metal roofs are generally very durable, but they can still show signs of wear and tear after several years of use.
Some common causes of metal roof wear include corrosion, rust, fading, and denting. Corrosion and rust can occur due to moisture exposure, while fading can be caused by UV radiation from the sun. Dents and other physical damage can be caused by hail, falling debris, or even foot traffic on the roof.