No, it is not recommended to glue concrete slabs directly to ceramic tiles. To ensure the stability of the installation and durability of the slabs, you must first prepare the surface. Here are the recommended steps: 1. Tile removal:
The best solution is to completely remove the ceramic tiles and properly prepare the wall surface.
Alternative preparation:
If removing the tiles is not possible, you can install GK or OSB boards on glue and dowels, which will create a solid base for gluing the concrete slabs.
Priming:
Before gluing the concrete slabs, a dedicated primer should be applied to ensure proper adhesion.