Undertake an initial test for the presence of moisture in the subﬂoor using a radio frequency moisture meter such as the Aquant™ Protimeter. If moisture is present, investigate further.
Conﬁrm and accurately measure the moisture levels present using a F. Ball Digital Hygrometer. If the relative humidity is below 75%* it is safe to proceed with ﬁtting. If above 75% RH go to step 3.
If relative humidity is above 75%, treatment is required. Use the chart opposite to determine the appropriate treatment.