6 Step to Reduce condensation and Mould

A six-step plan can help to reduce the amount of condensation and thus reduce the black mould growth in your home.

  • Produce less moisture
    • Dry clothes outdoors. Avoid drying
      clothes indoors or if you have to,
      dry them on a clothes airer in the
      bathroom with the door closed
      and either an extractor fan on or a
      window slightly open.


    • Vent tumble driers to the outside
      (never into the home) or buy a
      condensing type.


    • Cover pans when cooking and do not
      leave kettles boiling. This helps cook
      things quicker & reduces energy


    • Avoid using paraffin or liquid
      petroleum (bottled) gas heaters.
      They produce large amounts of
      water vapour and are very expensive
      to run!
  • Remove excess moisture/Ventilate to remove moisture

    Always wipe the windows and window sills of your home every morning to remove condensation. Use a paper towel and dispose of appropriately. This is especially important in the bedroom, bathroom
    and kitchen - just opening the window is not enough.

    Opening a window allows warm (but moist) air to escape to the outside and let in cool (but dry) air. A rule of thumb is to think that warm air can hold more
    moisture than cold air. The colder the air the less ability it has to hold moisture and the sooner condensation will occur.

    Try to ventilate or open a window when using the kitchen or the bathroom and close the doors to
    prevent moisture in the air from spreading to other parts of the house. Continue to ventilate these
    rooms for a short time after a shower, a bath or cooking, and keep the door closed!

    • Open bedroom windows for up to one hour as soon as you arise and throw back the sheets or duvets to
      air the bed and bedding.
    • Clear window sills of clutter that will restrict opening the window.
    • Leave space between the back of furniture and cold walls.
    • Ventilate cupboards, wardrobes and avoid overfilling them as this prevents air circulating.
  • Heat your home a little more

    In cold weather, the best way to keep rooms warm and avoid condensation is to keep low background heat on all day rather than short bursts of high
    heat when you are in the house. Good heating controls on your radiators, room thermostats and a timer will help control the heating throughout your house and manage costs.

  • Insulate and draught-proof

    This will help keep your home warm and save money on your heating bills.

    All RBH properties should have
    the minimum amount of insulation installed – this should be around 150mm although new installations
    will be at 270mm which is the newly recommended guidelines for new properties.

    Most RBH properties will have had cavity wall insulation

  • Dealing with black mould

    Black mould can grow on walls, ceilings, furnishings and even on clothes and toys, which can be depressing and expensive. Customers are able to clean areas of mould in properties just as areas of dust and dirt would be cleared away

    • Carefully remove excess mould with a damp cloth or kitchen paper and throw away after. Do not brush mould as this releases spores into the air.
    • Wipe down affected areas with a soapy solution.
    • Tea Tree oil is a natural antiseptic and disinfectant but it’s also great for cleaning especially on mould or mildew. Try a dilute of three to four drops of Tea Tree oil in two litres
      of water. Soak mildewed items in the solution or spray on to trouble spots.
    • Dry clean mildewed clothes and shampoo carpets
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