Preventing Condensation

All homes will be affected by condensation at some point and it may cause mould, damage to clothes, furnishings and decorations.

There is always moisture in the air even if you can not see it.

When the air gets colder it can not hold all the moisture and tiny drops of water appear, this is called condensation. You may notice condensation when you see your breath on a cold day or when the mirror mists over when you have a bath.

Condensation happens more in room’s where there is a lot of moisture such as bathrooms and kitchens rooms that occupied by a lot of people.

Why does it happen?

There are 4 main causes of condensation,

  • Excess moisture produced by everyday activities
  • Inadequate ventilation.
  • Insufficient heating
  • Insufficient insulation.


Preventing condensation is about getting the right balance by reducing excessive moisture, adequate ventilation, sufficient heating and sufficient insulation.

For guidance on this, see pages 4, 5 and 6 of our Condensation leaflet.

What you should do if you find mould in your home?

Refer to page 7 in the Condensation leaflet.

Other types of damp you may come across?

Refer to page 8 in the Condensation leaflet.


For more information on condensation and how to prevent it take a look HERE or take a look at the below video about managing condensation in your home.