View through a window façade of a winter landscape
Correct heating & ventilation

Interesting facts about room climate

How does condensation form in living areas?

Fogged window pane

Condensation can always form when there is a lot of moisture in the room air. This has very natural causes: As a result of showering, cooking or laundry washing, as well as human respiration and perspiration, or due to the presence of plants, moisture is given off into the room's atmosphere.
The warmer the air, the more moisture it is able to absorb. When warm air containing a high proportion of moisture makes contact with cold surfaces such as windows or external walls, it cools down. The cooling process causes the water contained in the air to be released, creating condensation.

Correct ventilation and heating will exchange humid air for dry air and create a pleasant, healthy room climate with an optimum humidity and temperature level. At the same time, it allows you to reduce your energy costs.Correct ventilation and heating will exchange humid air for dry air and create a pleasant, healthy room climate with an optimum humidity and temperature level. At the same time, it allows you to reduce your energy costs.

How much moisture you give off into the air

woman sleeping
  • While asleep, people give off up to 50 ml of moisture an hour. During hard physical labour, this can be as much as 300 ml.
  • When showering, around 2600 ml of moisture are generated per hour, when taking a bath, around 700 ml.
  • Cooking releases between 600 and 1500 ml of moisture every hour.
  • When ironing using a steam iron, around 1500 ml of water are released into the air every hour.

Hand on thermostat
Woman standing in front of open window