Step by step solution
Method of application
The substrate must be clean and sound with enough resistance.
The concrete needs to be cured for a minimum of 28 days.
The flatness of the substrate is very important. A maximum tolerance of 3 mm difference every 2 meters is allowed.
It is important to select an adhesive with the proper level of flexibility to accommodate the expected strains from either differential settlement, thermal exposure, deflections or moisture variations of the substrate under load.
For large size tiles bigger than 3600 cm², use the appropriate flexible tile adhesive such as webercol flex, webercol fast or webercol F1. The back buttering method is mandatory to ensure a better transfer of adhesive on the back of the tile.
Using an appropriate notched trowel, apply the tile adhesive evenly on the substrate to have a uniform thickness.
Ask for technical advice in case of special applications.
Grouting should be done at least 24 hours after fixing tiles, using weberjoint perfect or weberepoxy easy. (only 3 hours after using webercol fastor webercol F1)
To compensate for the low quantity of joints induced by the large size of tiles, and to absorb dimensional changes, joint width should be at least 4 mm.