Council Housing Repairs

Condensation and mould

Condensation is what happens when water vapour becomes liquid.

Mould is a form of fungus and is usually produced in damp and humid conditions. 

Daily activities, such as cooking, showering, and even breathing can create moisture in the air. When this warm air cools on cold surfaces, it creates condensation.

Inadequate heating, insulation and ventilation create conditions for mould to grow, which can affect your health and cause damage to your home.

How to reduce condensation and keep your home mould free

  • Open windows whenever possible to improve ventilation. If your windows have small adjustable openings in the frames (trickle vents), keep them open to improve airflow. Remember to close windows when you are leaving your home.
  • Try to maintain a constant temperature inside your home during cold weather.
  • Leave a small gap between walls and furniture to allow air to circulate and help to prevent mould growth.
  • Avoid drying clothes and towels on radiators. Instead, use a clothes airer or place wet washing in a well-ventilated room with the door closed. If you have a tumble dryer, then ensure it is properly ventilated and empty the water reservoir regularly.
  • Ensure extractor fans in bathrooms and kitchens are not isolated, blocked or disconnected and use the extractor fan when you are cooking, bathing, or showering.
  • When boiling water in pans keep the lid on to prevent moisture build up and keep internal doors closed to contain moisture.