How can I reduce condensation in my flat?
Written by Concierge   
Monday, 25 January 2016 12:43


Q: How can I reduce condensation in my flat?


A: When formed on the room side surface of the inner glass, window frames, ceilings and walls around windows:


  • Provide natural ventilation through an opening section of the window
    (at least one window in each room is fitted with a trickle vent - ensure this is opened)

  • Open/tilt the window for some part of the day to permit a change of air

  • Ensure that bathrooms and kitchens are ventilated through the use of the fan built in within the ceiling
    (the on/off switch is in the utility cupboard inside the flat)


What is condensation?

Condensation is the water which results from the conversion of water vapour in the atmosphere.

The air which surrounds us always contains water vapour. The warmer the air, the more water vapour it can hold. There is a limit, however, to the amount it can hold for a given temperature. When that limit is reached, the air is said to be “saturated”. When saturated air comes into contact with a surface which is at a lower temperature than itself, the air is chilled at the point of contact and sheds its surplus water vapour on that surface – initially in the form of a mist and, if excessive, eventually in the form of droplets of moisture. A typical example of this is the steam cloud from a kettle, which rapidly becomes invisible. Some other examples of where the water vapour comes from breathing, cooking, washing up, bathing, laundry, wet outer clothing and heaters.


Important: Water vapour does not remain in the room where it is first generated, but tends to migrate all over the flat. This happens because the water vapour pressure in the original room may be higher than elsewhere, and so the moist air will be forced into room with a lower pressure and convection currents will carry it through the flat



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Last Updated on Monday, 21 March 2016 11:08