Above
Check roof drainage, stormwater, hot-water overflow and air-conditioning discharge.
Trace dampness back to its source
Termites and moisture around a building
Moisture does not prove termites are present, but persistent dampness can contribute to conditions that deserve closer inspection.
Beside
Review irrigation, garden levels and plumbing leaks near walls.
Below
Look for persistent damp soil and restricted subfloor airflow without entering unsafe spaces.
Then act
A plumber or building professional may need to address the moisture source; a termite inspection answers a different question.