Home / Publications / Interpretation of hygrometer readings for moisture in concrete floors. PDF
Several British Standard codes of practice recommend the use of an in-box hygrometer to measure the relative humidity (rh) of concrete floor slabs to ascertain their moisture condition before laying flooring materials. The accuracy of the result obtained is not always appreciated. The following advice places the value into context. This advice sheet should be read in conjunction with Concrete Advice No. 22 Moisture in concrete floors.
Published: January 2000. Revised October 2019
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