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How to reduce condensation by room

Condensation in your home occurs through normal activities, like washing, cooking and bathing. There’s many ways to control the water vapour content in the air to reduce condensation. This article gives tips on reducing condensation levels in different rooms.

The GGF has provided some of the information in this article. You can download the full leaflet for free.

Tips for reducing condensation in the conservatory:

  • To reduce condensation in a conservatory, you can use crossflow ventilation. Vents can be installed in walls and roofs for this purpose. This is especially effective when the conservatory faces south.
  • Trickle ventilation in the wall, eaves, and ridge zone can also be helpful.

How to reduce condensation in the kitchen and utility room:

  • To reduce condensation in kitchens and utility rooms, close internal doors and keep a window open.
  • You can also install extractor fans or cooker hoods that ventilate to the outside air.

Tips for reducing condensation in the living room:

  • Make sure the warmth from the room reaches the windows. Place heaters under the windows and use curtain fixings that keep the curtains at least 15cm to 20cm away from the glass. This allows warm air to circulate freely.
  • Open the windows for a few minutes each day to let fresh air in.
  • If you don’t have open fires or if the flues are blocked, install wall vents and keep them clear. If you have a gas fire, make sure the back plate has vent holes below the fire, unless the fire design already includes this.
  • If possible, avoid using glazed or non-absorbent wall coating, as they can contribute to condensation on the walls.

Reduce condensation in bedrooms by following these tips:

  • Check the position of curtains and provide vents in the living room.
  • The central heating program should be extended. This will compensate for the drop in external temperature at night. It will also compensate for the increase in water vapour from breathing.
  • Open bedroom windows during the day to allow for at least one complete air change.

How to stop condensation in the bathroom:

  • Close the door and open a window for a few minutes after bathing. Place the radiator or heated towel rail under the window.
  • Think about putting in an extractor fan.

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