Why does condensation happen?
Condensation occurs when the water content of air rises above a level called the ‘dew point’. At such time, water droplets will form on the coldest surfaces e.g. windows, external walls etc. On average, a family of four people will produce about two gallons of water vapour per day from activities such as cooking, bathing, breathing and the washing and drying of clothes. It is also a fact that nowadays most properties are insulated to prevent warm air from escaping. This reduction in ventilation allows the air contained within the property to reach a higher relative humidity. We recommend EnviroVent ventilation units, ranging from Extractor Fans utilising humidistats to PIV Units. More information on these can be found on their website. If you would like one of our surveyors to complete an inspection & provide a report & advice regarding condensation, this can be arranged. Please note, these visits are chargeable. Please contact our office for more information.
The most common form of unwanted dampness in buildings is water from the air that forms as condensation.
The air in buildings can have a high level of relative humidity due to the activity of the occupants (e.g. cooking, drying clothes, breathing etc.). When this water-laden air comes into contact with cold surfaces such as windows and cold walls it can condense, causing water to be deposited. The point at which the water held in the air changes from vapour to liquid is known as the dew point.