Step 1:
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.
Step 2:
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
Step 3:
If relative humidity is above 75%, treatment is required. Up to 85% RH use two coats of Stopgap F78 or Stopgap Isolator Membrane. Above 85% RH use F77, F78 or Stopgap Isolator Membrane in accordance with recommendations on the latest Technical Data Sheets.
High Performance Waterproof Surface Membrane - One Coat Application System (Up to 98% RH)
High Performance Waterproof Surface Membrane - Two Coat, One Part Application System (Up to 95% RH)
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