What preparation is required when there is moisture in the slab?
Excessive moisture or wetness (12%) of a slab reflects under ground water leakage or moisture barrier damage that must be repaired at a construction/foundation level. Tile can be installed on a slab with dampness of (12%). The cement products used will remain damp; they do not form a waterproof barrier. Yet, no break-down or deterioration of the finished floor will occur since the performance of cement products is not effected by contact or submersion in water.
