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Dampness caused by condensation is not only detrimental to the property’s structure and creates damp walls, but it also has health implications.
Moisture caused by condensation can lead to mould growth, which in turn may trigger or worsen respiratory conditions such as asthma, allergies, and bronchitis. Children, the elderly, and those with existing health conditions are particularly vulnerable to the effects of damp and mould.
Condensation is most common between October and April, when the difference between warm indoor air and cold outdoor temperatures is greatest. When warm, moisture-laden air hits a cold surface like a window or wall, it cools and releases water droplets. This is what is known as condensation.
If external walls are damp, the problem can worsen. A dry wall is well insulated because air pockets within the material help to retain heat. But when those air pockets fill with water, insulation is reduced, and surfaces become colder — increasing the likelihood of condensation.
When cooking, use an extractor fan, or open the window if possible.
If you can’t open the windows for ventilation, ensure trickle vents are open.
During showering, ensure the extractor fan is operational and the window open if possible. Keep the bathroom door closed as long as possible to ensure excess moisture does not escape to other parts of the property.
Ensure that the tumble dryer has correct and adequate ventilation to the outside of the building.
Install humidistat units to control the humidity within the air.
Condensation is directly associated with mould growth, if you think you have a persistent problem contact us for advice.
Improving the thermal efficiency of the wall will greatly reduce incidence of condensation. Read more about how to do this in our article on Improving Thermal Efficiency of External Walls.
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Our staff are able to provide guidance for projects of all sizes, whether you require some general advice about damp or waterproofing, or support with technical drawings and specifications.