How can I tell if I have condensation or if it’s a different damp problem?
Moisture in the air inside your home causes condensation. This leaflet explains how you can reduce condensation and prevent mould forming.
A fault in the structure of the building can cause damp. There are two basic types of damp:
- Penetrating damp happens when water enters your home through an external defect (for example, a crack in a wall or a loose roof tile).
- Rising damp is when there is a problem with the damp-proof course or membrane and water rises from the ground into the walls or floor.
Rising damp, leaking plumbing and rain getting to the house (through the roof or around window frames) normally differ from condensation in that they usually leave a ‘tidemark’.
| The information on these pages is available in print or to download in our Preventing Condensation Leaflet. |  |
