Damp Diagnosis Tool Damp Diagnosis Tool 1. Where do you notice the damp problem? At the bottom of walls Around windows or ceilings On external-facing walls 2. What symptoms can you see or smell? Yellow or brown tide marks Black mould spots Peeling wallpaper or bubbling paint Musty smell Water stains 3. When does the problem get worse? After heavy rain During cold weather / winter It’s always there 4. Is the area poorly ventilated? Yes No 5. How old is the property? Pre-1920s 1920–1980 After 1980 Diagnose My Damp
