When is it appropriate to perform moisture testing?

Performing moisture testing before tile installation in wet areas is essential to ensure proper adhesion and long-term performance of the flooring. Moisture levels in the substrate can significantly impact the integrity of the tile and the adhesive used. If the substrate is too damp, it can lead to issues such as mold and mildew growth, loosening of tiles, or even failure of the entire installation.

Conducting moisture testing prior to installation allows professionals to identify problematic areas and take necessary corrective actions, such as drying out the substrate or using moisture-resistant materials and adhesives. This proactive approach maintains the quality and durability of the finished tiling work.

In contrast, conducting moisture testing after installation is too late to address potential issues that could lead to significant damage as a result of high moisture levels. Testing during tile cleaning does not evaluate the conditions before installation, and limiting testing to summer months ignores seasonal variations that could affect moisture content year-round.