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Condensation is the most common cause of damp. It’s mainly caused by poor ventilation. This is because all air contains some water vapour. The warmer the air, the more water vapour it holds. Condensation is caused by warm air coming into contact with a cool surface – that’s why the bathroom mirror steams up after a shower.

Really bad condensation can cause staining and mould on walls, window frames, furniture and clothing. There are some things that you can do to minimise it, though.

  • Keep lids on pans while cooking
  • Make sure tumble driers have a vent to outside – or open a window when they’re on
  • Avoid using bottled gas and paraffin heaters – they produce lots of vapour
  • Dry washing outside if possible
  • If the kitchen or bathroom is getting steamy, open the window and close the door - this will let moisture escape and stop it spreading through the house
  • Open a window!
  • Try to keep temperatures above 15ºc
  • Move furniture away from external walls to allow air to circulate. 

If you would like further information on dealing with condensation click here 

If you have ongoing problems with dampness in your home please report it to us here

You can also watch the short film we have produced below about dealing with issues of condensation.