Tip: Combination moisture measurement – more security thanks to combined testing of the readiness for laying

CM measurement CM measurement is a recognised testing method for judging the readiness for laying of plaster. However, as for all measurement methods, the use of only one procedure can always lead to misinterpretations.

Tradesmen and builders have often found themselves before a court of law in recent times because the CM measurement result in an individual case indicated that the plaster was ready to lay when in fact it was not!

So play it safe and combine the measurement of the water content of the floors (CM measurement), which is tried and tested in continental Europe, with the balance moisture measurement which been established as a standard procedure for many years, for example, in Scandinavia.

In the combination moisture measurement, the balance moisture and subsequently the water content of the same material sample are determined in two measurement steps.

Combination moisture meas­urement gives users of CM measuring devices greater security in judging the readiness for laying of plaster without a significant increase in cost. Also, the familiar CM measuring device can be used for this additional measurement.

The determination of both variables – balance moisture and the water content of the material sample – allows a more reliable judgment of readiness for laying than just one of the two measurement methods alone. Since both measurement results are determined from the same material sample, the combination moisture measurement procedure leads to greater security for floor layers!

Required equipment for combination moisture measurement: In addition to the existing CM device, only the CM-Hygro-Combi-Lid and a T200 thermo-hygrometer or, in the case of an existing T2000 measuring device, a TS200 SDI climatic sensor will be required.