Why do roof waterproof tiles need anti-corrosion properties?

Roof waterproof tiles need to have anti-corrosion properties, mainly to ensure their long-term service life and stability. The anti-corrosion performance can effectively resist the erosion of external moisture, rain, acid rain and other factors, prevent corrosion, oxidation and damage on the tile surface, thereby extending its service life, maintaining its original beauty and functionality, and ensuring the waterproofing of the roof The effect is long-lasting and stable, while reducing maintenance and repair costs and improving the overall performance and reliability of the roof.