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If your home is damp or you find patches of mould on walls, furnishings or
clothes, condensation may be the cause. The following advice will help you to
solve the problem.
Why are you getting condensation?
Air can only hold a certain amount of water vapour - the warmer it is the
more it can hold. If it is cooled by contact with a cold surface such as a
mirror, a window or even a wall, the water vapour will turn into droplets of
water-condensation. So the warmer you keep your home the less likely you are to
get condensation.
When is it a problem?
Every home gets condensation at some time - usually when lots of moisture and
steam are being produced, for instance at bath-times, when a main meal is being
cooked or when clothes are being washed.
It is quite normal to find your bedroom windows misted up in the morning
after a cold night. There is nothing much you can do to stop this. But if your
home never seems to be free from condensation, read on...
How do you know it is condensation?
It is not always easy to tell. But other kinds of damp, such as rain or
plumbing leaks, usually leave a 'tidemark'. Condensation is usually found on
north facing walls and in corners, in cupboards and under work surfaces - in
fact wherever there is little air movement.
If you are not sure what is causing the damp in your home, start by checking
pipes and overflows and under sinks to see if there are any obvious leaks. Have
a look outside, too - you may be able to see if there are slates missing from
the roof or cracked gutters or rainwater pipes.
If you live in a new or recently modernised house or flat, don't forget that
it may not have dried out from the water remaining after the building work. It
usually takes 9 to 18 months for this to happen and you may need to use more
heat during that time.
What you can do about it!
The way you use your home affects the amount of condensation you get. This
does not mean that you should alter you habits drastically - just bear in mind
the following tips:
Heating
You will get less condensation if you keep your home warm most of the time.
Insulation will help you do this. But with fuel the price it is, try to
remember the following too:
- It is important that your heating system is checked regularly so that it
works efficiently.
- Try to leave some background heat on through the day in cold weather. Most
dwellings take quite a long time to warm up, and it may cost you more if you try
to heat it up quickly in the evening.
- If you can't afford to spend more on fuel because of high quarterly bills,
ask your fuel supplier or your local gas or electricity board about their budget
schemes, for example fuel saving stamps, which help to spread the cost of
fuel.
Ventilation
The more moisture produced in your home, the greater are the chances of
condensation, unless there is adequate ventilation. Nobody likes draughts, but
some ventilation is essential.
Windows
In winter open windows a little, only as long as they are misted up. If you
fit draught stripping, leave a space for a small amount of air to get
through.
Chimneys
Never block these up completely. If you are blocking up a fireplace, fit an
air vent to allow ventilation.
Bottled gas and paraffin heaters
You will need to allow extra ventilation if you use one. Flueless heaters of
this sort produce more than a pint of water for every pint of fuel they
burn.
Drying Clothes
Drying clothes indoors, particularly on radiators, can increase condensation
unless you open a window to allow air to circulate. If you have a tumble dryer
which is not vented to the outside you will need to allow more ventilation when
you use it.
Doors
Keep kitchen and bathroom doors shut, particularly when cooking, washing or
bathing - otherwise water vapour will spread right through the house and
condensation will probably reach other rooms.
Extractor Fans
If you have an extractor fan use it when the windows get steamed up.
Kettles and Pans
Don't allow kettles and pans to boil away any longer than is necessary.
Cupboards and Wardrobes
Don't overfill cupboards and wardrobes. Always make sure that some air can
circulate freely by fitting ventilators in doors and leaving a space at the back
of the shelves. Copyright (c) 1998 P C
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