The layout glued over the layer with epoxy adhesives can be made only in case the layer has a high percentage of cement in its constituents with the aim of making it harder and to give it a better adherence (it is indispensable for the layer not to be split when scraping).

The layer must be dry, clean and without any adherent elements like pins, glue, plaster, etc.

The layer should not have variations, gaps or undulations larger than 4mm in a length of 4ms, contrary to the case of the assembled floor; it can “copy” those deficiencies from the layer.