ABSTRACT
This chapter explores the results of a three-year monitoring campaign of buildings throughout Europe. It obtained through the observation of the daylighting behaviour of 60 buildings. More than 10 organizations were involved in the task which required about 30 people to carry out measurements, process the data and supply the results to the coordinator. For some buildings, a specific Post Occupancy Evaluation study (POE) to assess the effects of daylighting strategies on the occupants. Objective assessment helps us to discover the difference between the perceived brightness of a space and the exact amount of daylight used to light it. Various monitored buildings included atria, designed mainly for thermal reasons, acting as buffer spaces with temperatures warmer than outdoor temperatures in winter. The energy performance of the buildings as they are today was computed using the energy simulation programme ESP-r and comparisons were made for configurations without the daylighting features.
