1. Start by cleaning the entire roof tile surface. This includes removing all dirt, dust, and other debris that may have built up over time.
  2. Use a mild soap and water to clean the tiles in specific areas. Be sure to clean the entire roof tile surface, not just a few areas.
  3. Rinse off any excess soap and water and dry the tiles completely.
  4. Apply a sealant to the roof tile surface using an approved product. This will help keep water and dirt from entering into the tile and causing it to become dirty or damaged over time.