HoTT allows sunlight and daylight to get into the living space. In the summer automatic sunscreens and roof overhangs prevent to much warming. Daylight mainly comes into the living space trough the roof, the wall openings are placed as focused views. The Velux Daylight Visualizer has evaluated the home’s daylight levels and found that it has an average daylight factor of at least five percent in all living spaces.
Maximized passive solar heat gain and manually controlled hybrid ventilation ensure a good indoor climate for every resident.

Automated, intelligent control of the home’s windows is the primary source of ventilation in spring, summer and autumn. The stack effect enables night ventilation in the summer. Together with the PCM-floors no extra cooling system is necessary. In the winter, however, the system uses a mechanical ventilation system with heat recovery.