Installation professionals utilize pin-type or pinless moisture meters to detect moisture levels in concrete slabs (measured as Relative Humidity or Calcium Chloride test) and wood subfloors. Concrete subfloors must typically stay below specific RH thresholds to avoid flooring failure, while wood subfloors are checked for equilibrium moisture content. If moisture levels exceed the manufacturer's recommended range, installation must be delayed to allow for drying or the application of vapor barriers. Accurate testing is the essential first step to preventing buckling, mold growth, and premature floor degradation.

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