Radiant ceilings are standard in modern office buildings. Thanks to their large surface area and energy absorption by means of thermal radiation, they ensure an extremely high level of thermal comfort even at relatively high water flow temperatures.

As with all surfaces that are colder in relation to their surroundings, radiant ceilings raise the question of dew point control. Condensation – which can cause damage both to the ceiling and office furniture – is practically excluded through various technical measures and only rarely occurs.

Dehumidification of the air supply into the building is generally no longer carried out for energy reasons. Dew point monitors are installed to monitor moisture in the building zones.

Unfortunately, however, dew point monitors are often set to switch off the radiant ceiling in the event of doubt, which means that they do not provide cooling precisely when required – on hot and humid summer days.

This White Paper puts forward alternatives.

The White Paper addresses the following questions:

• Humidity – a brief overview
• Dew point monitors in conjunction with radiant ceilings
• How a ceiling could continue to provide cooling even at higher humidity