Date Published 28 November 2018
What is Condensation?
Condensation is the appearance of water on cold surfaces. It occurs where moist air comes into contact with air, or a surface, which is at a lower temperature.
Water produced from condensation is generally noticeable where it forms on non-absorbent surfaces (i.e. windows or tiles) but it can form on any surface and it may not be noticed until mould growth or rotting of material occurs.
Ventilate to remove moisture to the outside:
Your property can be ventilated without creating draughts by installing an extractor fan, they only consume 1/5 the power of a 100watt bulb.
If you are replacing windows, ensure they have trickle ventilators.
Do not block permanent ventilators or airbricks installed for heating or heating appliances. This could also lead to a dangerous build up of carbon monoxide.
Insulate, draught-proof and heat your property:
Condensation forms more easily on cold surfaces, for example walls and ceilings. These surfaces can be made much warmer by improving insulation and draught-proofing.
Insulate your loft, but don't block the openings under the eaves.
Get rid of mould and condensation, the draught-proof windows and doors.
Don't draught-proof bathrooms, kitchens or rooms where a gas burning appliance or solid fuel is installed. These appliances need a constant source of fresh air to ensure proper and safe combustion.
See what energy efficiency measures are available to you. Generally, your gas and electricity supply company will provide free help and advice.