Preventing Condensation

What is condensation?
When warm moist air produced by ordinary household tasks such as cooking and bathing hits a cold surface (for example a cold wall or a window) - condensation occurs. Unless the moist air can escape to the outside through an open window, air vent or extractor fan, it will always stay in your home moving around until it finds a cold spot where it can condense.
Condensation can cause dampness and mould growth in your home. This looks unpleasant and can increase the risk of respiratory illness. It can also cause wooden window frames to rot.
The three main causes of problem condensation are:
We also have information on:
| The information on these pages is available in print or to download in our Preventing Condensation Leaflet. | ![]() |


