In the case in question, the kitchen studio Gans & Gar in Freiburg installed a new ceramic flooring with the intention of, every two or three years, replacing this with new. It was also the premise that, for the installation, a method would be found whereby, at the next renovation, the ceramics could be quickly and easily removed and replaced with modern tiles. For such regular renovation of tiling, the Ulm manufacturer Codex offers the Keralift tile-change-system which was also used in this case.

Forming the substrate was an existing, old, floating cement screed. This was primed with Fliesengrund. Once this was dry, the fixative for the first sheet width was applied with a fine lambswool roller. After a few minutes, the pre-cut Keralift-Vlies sheet was laid out ensuring no folds and was rubbed down. Then the next sheet width was laid parallel with the first and with a four centimetre overlap. This sheet forms the surface onto which the proposed new tiles are installed or fixed.

Onto the bonded sheet the 30 x 30 black and white stoneware tiles were laid using the thin-bed method. For this, the hydraulic setting thin-bed mortar Power Flex was used. The stoneware tiles from Deutsche Steinzeug were laid with a light twisting movement into the fresh mortar ridges and were tapped down. After 24 hours, the ceramic tiles were grouted with Flexfuge.