Damp and mould


The 3 main causes of condensation are:

  • moisture from every day living
  • poor ventilation
  • cold temperatures

Things we do every day such as cooking, showering and drying clothes create moisture in the air. If the moisture builds up, it will form condensation when it cools. Condensation usually forms on cold surfaces such as windows, tiles and external walls.

Condensation is more obvious in winter when the temperature outside is colder.

Reducing condensation

You can reduce condensation by:

  • wiping windows and surfaces with a soft dry cloth
  • leaving a gap between furniture and walls
  • not storing items against walls
  • not blocking-up or covering air bricks or vents
  • not overfilling cupboards or wardrobes
  • opening doors of cupboards and wardrobes to improve air flow
  • leaving trickle vents open on all windows, or leaving windows open if it's safe to do so
  • making sure your bathroom extractor fan is on when washing
  • making sure your kitchen extractor fan is on when cooking
  • closing bathroom and kitchen doors when in use
  • hanging washing outdoors whenever possible

If you have to dry clothes indoors:

  • never dry directly on a radiator
  • try to use one room only
  • close the door of the drying room and leave its window open

You keep your home warm by

  • draught-proofing windows and doors
  • insulating external walls and your loft space
  • keeping your heating on at a low level during cold weather, even when you're not at home – this may also help reduce your energy bills as the boiler won't need to work as hard to heat up the property