Observation frame
- Location: ceiling / wall / floor / window.
- Timing: rain-only vs water-use-only.
- Path: water travels downward/outward from higher sources.
- Odour and mould: clues to how long damp has sat.
IR and moisture meters
Common mistakes
- Assuming the stain’s centre is the source.
- Re-waterproofing before logging evidence.
- Ignoring condensation.