The European standard EN 14240 defines test conditions and processes to determine the cooling capacity of radiant ceilings or other large cooling surfaces. The aim of this standard is to provide comparable and reproduci-ble product parameters. However, conditions in a real office building are different from those in an EN 14240 test room. Some of these conditions have an extremely positive effect on the cooling capacity of radiant ceilings. In the specially designed Barcol-Air climate laboratory, it is possible to simulate the capacity-boosting factors which occur in a real office building. This White Paper is intended to show the difference between EN 14240 and reality, and to provide an overview of the factors which increase the capacity of radiant ceilings and what effect these factors have on the cooling capacity

The White Paper addresses the following questions:

• What are the differences between the capacity measurement according to EN 14240 and real conditions?
• How significant is the effect of these differences?
• What factors increase the capacity of radiant ceilings in real buildings and how do these factors affect the cooling capacity of a radiant ceiling?