Why is my wall damp?
- Top tips on tracing dampness to its root cause.
- Stop the root cause and damp will disappear.
- However, if you just treat the symptoms, water may continue to cause damage.
What causes mould?
The existence of mould says 3 things;
- There is a source of water vapour.
- Ventilation is insufficient (local or internal).
- You don’t have rising damp (not on a mouldy wall).
Rising Damp risks
For rising damp it needs ALL:
- High groundwater, that is water-table, within 1M of ground level. Look up online risks. Look in sub-floor and consider drilling or digging down.
- Profile of rising damp is horizontal, like a flood, dipping in corners and openings (doors and windows).
- Nitrate salts are detectable on the surface of damp walls.
- No mould. Nitrates in rising damp stops mould growing on walls.
- The single greatest damage to properties is caused by rotten timber, especially Dry rot.
- Very few surveyors check for risks of rot.
- Follow our simple tips that should be carried out on every homebuyer and damp survey.