Moisture Testing

It is paramount that a screed moisture test is carried out to ensure that the liquid screed has dried out to the recommended level to allow the subsequent floor coverings to be added. Failure to do so will result in several serious issues once the final floor is laid. Excess moisture levels within a liquid screed floor can result in condensation, adhesive degradation, movement and delaminating of the further floor coverings. If you have an underfloor heating system installed, there is the potential for severe damage to occur to said installation.

Before tiling onto calcium sulphate screeds it is vital to ensure moisture content is at the correct level for the floor finish. Typical values for moisture sensitive floor finishes is less than 0.5% water by weight, or a relative humidity less than 75%.It is vital to ensure moisture content is at the correct level for the required floor finish.