1. Material limitations: Iron sheet tiles are also a common tile type on the market, but due to the influence of their own material properties, they cannot meet the roof requirements of buildings such as temples and pavilions that require larger wave peaks and valleys.

2. Easy to rust: Over time, iron tiles come into contact with moisture in the air, which can easily cause rust. Even if the surface maintains a good color after treatment, the lower part is dark and damp, and the degree of rust is severe.

3. Dead bugs: Iron tiles are prone to accumulating dust and debris, creating a humid environment that attracts bugs to inhabit. In addition, the gaps and indentations in the iron tiles provide hidden breeding spaces for insects, leading to the accumulation of dead insects.

4. Deformation: In high temperature environments, iron sheet tile materials are prone to deformation, resulting in reduced strength and safety issues.

5. High noise: The iron sheet tile material is light and has a loose structure. It produces high noise after being exposed to wind and rain, especially during hail periods, which can affect the living environment.