When laying large-format tiles - whether in the classic or drytile version - the substrate must have a high degree of evenness. DIN 18202 "Tolerances in building construction" serves as the basis for dimensioning. For higher mechanical loads, we recommend a tolerance of 2 mm over a length of 2 m.
By using suitable levelling compounds, an appropriately level substrate can be prepared for the subsequent laying of the large format tiles.
Our system center will be happy to advise you in detail on the correct substrate preparation.