In or outside the home
Damp areas where rainwater comes in or where plumbing leaks or seepage occur:
- Window and door sills
- Behind downspouts
- In walls where gutters overflow
- Under shingles
- Below a leak in a roof valley
- Under dishwashers and washing machines
- Under shower or tub drains
- Bathroom or kitchen wall voids
- Behind water damaged fascia
- Under chimney flashing
- In firewood recently brought into the home
- Near air-conditioning condensation
- In insulation
- In wood in direct contact with soil