Correction of the pathology would involve the following steps (A):

      - Removal of the PVC covering;
      - Pricking-up of the support layer for around 0.06 m;
      - Regularization of the support;
      - Application of a vapour barrier with permeance - Wp less than
        2x10¹²kg/(m².s.Pa);
      - Placement of a polyethylene protection film;
      - Execution of a small slab of reinforced concrete 0.05m thick;
      - Gluing of the PVC covering.

Alternatively, the PVC covering could be replaced by a non-water sensitive covering and fixation system (B).

KEYWORDS: 

Ground Floor, PVC Covering, Loosening of Covering, Internal Condensation, Vapour Barrier