When drying, concrete slabs have lower moisture levels near the surface and higher levels towards the bottom of the slab. Concrete that contains excess moisture and high RH levels can lead to flooring failures. When flooring is installed and sealed too early, and not given enough time to dry, an excess of moisture is trapped inside the concrete. This water will try to evaporate, which can cause damage and deterioration of your wood flooring. Under normal drying conditions, a rule of thumb allows at least one month of drying for every 1 inch of slab thickness after closing the building.
