Condensation - What is it and how to stop it - Part 1
Sat 11 Mar 2017
What is condensation?
Condensation is a condition that affects all homes, not just rented property. It is especially common in homes which are poorly heated and poorly insulated. It usually gets worse in the colder winter months. There is always some moisture in the air and if the air gets colder it cannot hold all the moisture and small water droplets form. This is called condensation.
Bathrooms and kitchens are often primary sources of atmospheric water. In these areas water is released into the air through normal daily activities such as washing, cooking, drying clothes and bathing. The water droplets produced commonly form on windows and external walls, or other cold surfaces within the property. Areas with cold surfaces or low air circulation are particulary vulnerable such as corners and windows or behind cupboards and wardrobes. It often forms on north facing walls.
Excessive condensation can lead to staining and mould growth, damaging wall surfaces, window frames, furniture and clothing. The tell-tale sign that condensation is excessive is the formation of mould growth. Mould can be white,yellow or green in colour, depending on the type of mould and the surface it grows on. Black spot mould (Aspergillus niger or Cladosporium spp) forms pyramid profiles in wall corners and at wall/floor or wall/ceiling margins.
Moulds are hydrophillic fungi in that they require high levels of surface moisture. Capillary held dampness (such as that resulting from rising damp) is not sufficient to cause mould growth. The mould requires free moisture on the surfaces to germinate. Tiny spores produced by the mould and the higher number of dust mites due to the moist conditions can increase the risk of asthma and respiratory disease.
January 2015View older stories >
Instant Online Valuation
Interested in your property value?