Natural ventilation of buildings is a key factor in climatisation concepts that aim to achieve low energy consumption and a high level of environmental compatibility. Only a few years ago, a uniform, artificial interior climate produced by full air conditioning was regarded as ideal. Now, by contrast, it is generally recognised that the sense of personal well-being and the quality of the workplace can be significantly enhanced by providing an increased influence of ambient air (for instance, to allow daily and seasonal climatic variations to be experienced) and allowing people to adjust room climates to suit their personal favorites. Even in office buildings and administrative buildings, it is now hardly imaginable to build working rooms that do not allow at least occasional natural ventilation.

As part of the current trend towards transparent architecture, natural ventilation is increasingly tasked with discharging heat loads out of the building in addition to air hygiene aspects.

In the conceptual and detailed planning of natural ventilation solutions, appropriate consideration must be given to wind forces as well as thermal induced buoyancy forces. Our range of services includes formulating requirements for air hygiene, fresh air supply and heat discharge, determining ventilation rates and air speeds, dimensioning ventilation openings and developing concepts for control and regulation.