Accurate moisture testing is critical for LVP installations. Concrete slabs must be checked for excessive moisture that could lead to mold or adhesive failure. In-situ relative humidity testing, performed according to ASTM F2170, provides a reliable measurement of internal slab moisture, which is more accurate than surface testing methods. If levels exceed manufacturer thresholds, vapor mitigation systems are required.
Ask an ExpertLuxury Vinyl
How are substrate moisture levels validated prior to the installation of luxury vinyl flooring?
Substrate moisture is validated using calibrated moisture meters or calcium chloride tests. For concrete, relative humidity (RH) testing via in-situ probes is often the standard to ensure levels align with the LVP manufacturer’s requirements before any adhesive or click-lock installation.