Dealing with Condensation

Condensation is a common occurrence in many homes, particularly during the cold Winter months, and it can be difficult to understand why it forms. If it is not dealt with effectively it can also encourage the growth of mould on walls and ceilings and can cause woodwork to rot.

Condensation 2

What is Condensation?

Condensation is caused when water vapour in the air comes into contact with cold surfaces. Condensation is most likely to appear on windows, colder parts of the wall, around external door and window openings, and where ceilings and floors meet with outer walls. It can also appear in areas where air circulation is restricted, such as inside cupboards and behind furniture that is placed against an outside wall.

Where does the moisture come from?

Moisture is produced in the home from normal daily activities such as taking showers and baths, washing and drying clothes, cooking and boiling kettles. To give you an idea of how much water this is:

  • 2 people at home for 1 day = 3 pints of water produced
  • Cooking and boiling a kettle = 6 pints of water produced
  • Having a bath or a shower = 2 pints of water produced
  • Washing clothes = 1 pint of water produced
  • Drying Clothes = 9 pints of water produced

How to reduce Condensation? Some simple steps to follow:-

  1. When you’re cooking or washing, keep the kitchen or bathroom doors closed to stop the steam from entering other rooms.
  2. To allow warm air to escape, open the windows in that room and close the door
  3. For better ventilation, leave the windows and doors slightly open while you’re sleeping. A person releases half a pint of water as vapour in their sleep. This vapour is another cause of condensation on windows in the mornings.
  4. Wipe condensation from window sills, tiled walls and shower stalls to prevent condensation black spots. Wash any spots that do appear regularly.
  5. Ensure you use your extractor fan in your home. If you need any advice on this please contact us.
  6. Put lids on saucepans while you are cooking to reduce steam and use your cooker hood extractor fan for ventilation.
  7. Avoid drying laundry on radiators. If drying clothes indoors, open the window and close the door of the room where the clothes are drying so that the moisture can escape outside rather than circulate around your home.
  8. If you use a tumble dryer, make sure it is properly vented to an open window.
  9. If your windows have trickle vents, keep them open to allow warm air to escape.
  10. Position any free-standing furniture (wardrobes and beds) against internal walls, as these are not as cold as walls that are exposed to the external elements.

Provide even heating

If your home is unoccupied during the day, it would help if the heating timer is set so that your home is warm by the time you return home. The temperature can be set a few degrees lower while you are out and turned up.when you return.

Treating mould

If you notice mould growing in your home, you should treat it straight away to stop it from spreading and causing damage to your home.

  • Sterilise the affected area with a suitable fungicidal wash. You can buy this wash in most DIY stores and larger supermarkets. Please check the manufacturer’s instructions.
  • If the treatment appears to have been successful, you can carry out any necessary re-decoration. If painting, use a good quality fungicidal paint to prevent mould, but remember that this will not be effective if it is later covered by ordinary paint or wallpaper. If wallpapering, use a paste containing a fungicide to prevent further mould growth.


condensation, damp, mould,

talk to us

For more information on this subject or on any other matter relating to Gwalia Housing, please contact us via telephone on 0800 012 1080. Alternatively you can use our online form or send us an email. You can also connect with us via facebook or twitter.

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