Thermal comfort

The interior environment in our homes has become increasingly important. Today, it is not enough simply to provide protection from cold and heat – we expect fresh air and excellent thermal comfort, i.e. constant air temperature and low air flow velocity, all year round.

Providing this comfort makes stringent demands on the quality of a building. Besides adequate thermal insulation, the building shell must be airtight to prevent the uncontrolled flow of air, as leaky cracks and joints will invariably cause uncomfortable draughts.

But even a difference in temperature between the air in the room and the surrounding surfaces (floor, walls, ceiling and windows) can affect comfort levels. The smaller this temperature difference, the greater the feeling of comfort and well-being.

Pleasant air temperature

A person’s individual perception of comfort depends on room temperature, the activity they are undertaking and their clothing. An air temperature of approx. 22°C is generally perceived as “comfortable” in sedentary living areas, whereas with physical exercise, air temperatures of between 16-19°C can be perceived as “pleasant”.