Concrete
Use the flooring and adhesive manufacturer's accepted test method, locations and limits. A surface-only observation is not a moisture test.
Floor health diagnostic
Investigate the symptom before covering it.
Safety boundary
Do not disturb suspected asbestos-containing flooring or adhesive, mould, structurally soft areas or actively wet assemblies. This tool does not diagnose concealed conditions.
Moisture and subfloor readiness
Wood panels
Record moisture, fastening, panel condition, movement and required flatness. Correct the cause of movement rather than hiding it.
Below grade
Product approval, vapour control, drainage history and moisture results all matter. “Waterproof flooring” does not make the building assembly waterproof.