Validating subfloor moisture is a critical quality control step in commercial flooring projects. Installers rely on industry-standard tests to determine if the slab is performing within the flooring manufacturer's specified limits. Relative humidity testing involves drilling into the slab to get an accurate reading of the moisture deep within the concrete. If levels exceed acceptable thresholds, the installation must be delayed or moisture mitigation systems like epoxy sealers must be installed.
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How are substrate moisture levels validated in commercial spaces?
Substrate moisture is validated using standardized testing protocols like ASTM F2170 (in-situ relative humidity) or ASTM F1869 (calcium chloride). These tests provide a quantitative measurement of moisture vapor to ensure the substrate is dry enough for adhesives.