What is condensation?
Before we go any further, it is important to understand exactly what condensation is.
Condensation forms because the moisture in the air can no longer be held as a vapour, so returns to liquid form. This occurs when warm moist air comes into contact with either cooler air or a cooler surface.
Condensation forms because the moisture in the air can no longer be held as a vapour, so returns to liquid form. This occurs when warm moist air comes into contact with either cooler air or a cooler surface.
Mould growth is a typical sign of chronic condensation and occurs as spores which are always present in the air. These spores find water (condensate) and organic material (dirt and grease) that support their life cycle.
Mould is a significant health risk to asthmatics, anyone with other respiratory conditions, the very young and elderly people. The high humidity levels associated with condensation also enables house dust mites to flourish, and the droppings from these microscopic creatures, as well as mould spores, can cause allergic reactions which are also linked to the onset of asthma.
How to recognise condensation
Diagnosis of condensation cannot be just visual; measurement of temperature, humidity, ventilation and consideration of insulation qualities and heating patterns need to be undertaken. However, typical signs of condensation to look out for include:
Diagnosis of condensation cannot be just visual; measurement of temperature, humidity, ventilation and consideration of insulation qualities and heating patterns need to be undertaken. However, typical signs of condensation to look out for include:
- Mould growth on wall surfaces, around external wall openings and in areas of low air circulation or poor ventilation
- Misty wall surfaces
- Water staining and streaking on walls, particularly in bathrooms and kitchens
- Patches of damp with no obvious edges
What action is required?
We ask all tenants to ensure that our properties are sufficiently ventilated by taking a few simple precautions stated below in order to avoid condensation and the build-up of damp.
BEDROOMS
Open bedroom windows when you go to bed at night; a 10mm gap will do. If it really is too cold to do this, wipe the condensation off the windows first thing in the morning.
SHOWER/BATHROOM
Ensure full use of extractor or ventilation fans. Where these are not provided, open a window after bathing or showering to give the steam and damp air a chance to escape. Wipe windows, walls and mirrors to remove condensation and dry the shower tray or bath.
KITCHEN
When cooking, make sure you cover pans. Use extractor or ventilation fans where provided. If you do not have an automatic kettle, take care to ensure it is not left boiling.
WINDOWS
Keep glass as clear of condensation as you can. Wipe away any moisture that has formed using a soft cloth. Leave open any ‘trickle’ vents in double glazed units. Get into the habit of opening windows to keep the moisture content in the air down and to air the property whenever you can.
LAUNDRY
Avoid drying clothes on radiators. Tumble dryers should be vented to the outside, unless fitted with a condenser.
HEATING
Provide a reasonable level of heating (no less than 10°C in an unused area, or 16°C if in use); cold rooms are susceptible to condensation.
Watch the video below for some more information on how to stop the build-up of mould within your property.
We hope you have found this information useful and that it might help to resolve any issues concerning condensation and damp before they become a serious problem.
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