Start by removing the detached tiles. In case the plaster is friable, remove it until a stable substrate is reached.
Repair locally with the polymeric repair cementitious mortar DUROFIX, with the fast-setting repair, thixotropic mortar DS-245 POWER MORTAR RAPID, or with the repair, fiber-reinforced, resin-modified, thixotropic mortar DS-244 POWER MORTAR RESIN if it is a wall, or with the fiber-reinforced cement screed D-6 if it is a floor. Finally, position the new tiles, bonding them with the flexible, high-strength tile adhesive GOLD, EXTRA POWER, or ELASTIC.
Complete the application by grouting with the appropriate type of cementitious grout, depending on the joint width. For underfloor heating, it is recommended to add ACRYLIC EMULSION to the mixing water of the grouts at a 1:1 ratio, as well as to the tile adhesives (except for ELASTIC).
To ensure that detachments do not reappear, create an expansion joint every 16-20 m², as well as perimetrically at the junction of the tiles and vertical surface, as previously described (Tile detachments – Moisture infiltration from cracked tile grout).
