The tiles are terracotta tiles, traditionally hexagonal in shape. Over time the tiles may break, crack or be stained. It then becomes necessary to renovate your tiles.
Check the condition of the tiles to be renovated
Before renovating your tiles, find those that are broken or cracked. Then wash them and check if they are oily or stained. If your tiles are oiled or if they have been waxed, you will need to use a dewaxing product. If they are stained you will clean them with a suitable product.
Replace damaged tiles
To replace a damaged floor tile, scrape the joint around with a joint scraper. Take a chisel and hammer and break the tomette in the center. Then remove the pieces with a metal spatula and scrape the location to remove the last residue. Dust the location. Apply adhesive mortar in a uniform and not very thick layer then place a new tomette. Press to fix it without pushing it too far: it must be at the same level as the tiles around it. Wipe off traces of overflowed mortar and allow it to dry for at least a day without stepping on it. Redo new seals and allow to dry completely.
Clean the tiles
To renovate stained tomettes, they must be thoroughly cleaned. For this, use a product suitable for tomettes, apply it on the floor by rubbing with a broom, leave to act and rinse with clear water.
Sand the tomettes
You can hire a suitable sander to sand your floor tiles. Before sanding, slightly wet the tiles. Sand them, clean the mud that has formed on their surface and let dry.
Protect the tomettes
The last step to renovate tiles is to protect them. Apply an impregnator for terracotta, it is a product that reduces the porosity of tiles. You can then renovate the floor tiles by waxing or oiling them.