Manufacturer installation guidelines specify strict moisture limits for concrete and wood subfloors. Failure to perform and document moisture tests will often void the product warranty. Always use a calibrated moisture meter and follow the specific testing method required by the flooring manufacturer for your subfloor type.
Ask an ExpertLuxury Vinyl
Is subfloor moisture testing mandatory?
Yes, subfloor moisture testing is mandatory for almost all luxury vinyl installations. Even if the LVP is waterproof, excessive moisture in the subfloor can lead to mold, mildew, or damage to the underlying adhesive, especially in glue-down installations or areas with high humidity.