Energy

Daylighting
The PV upper roof, which has an average transparency of less than 5%, becomes more transparent where needed by the insertion of clear glass panels. The lower roof, which is the roof of the conditioned spaces, is an insulating translucent material. The system is designed to allow enough daylight to pass both layers to the conditioned rooms inside, providing 100% daylighting during daylight hours, and the exclusive use of fluorescent light bulbs at other times.