If you have exterior tiles we recommend to check them every year and to take care of them because they need special care, being exposed at different temperatures, water, humidity, etc.
1. Remove crecked and damaged tiles. Install replacement tiles and new joints with products recommended by the manufacturer as suitable for this purpose.
2. Clean and examine vertical and horizontal exterior tile surfaces annually before freezing weather begins. Since summer heat causes expansion joints and cracks to shrink, repair all expansion joint deteriorations using the proper sealants for vertical and horizontal applications.
3. Repeat the proceduew annually.