LIGHT CONTROL ROOF
an algorithm responding to the sun's path

date: 2000-2001
(with Foster and Partners)

An initial scheme to unify the zones of a large building, while providing specific lighting requirements to each, this roof structure is composed entirely of louvers that twist to different orientations in relation to the path of the sun. A computer algorithm was used to calculate the angle of the gradually twisting blades at each point to allow direct natural light to specific areas only, reflected light to others. The central zone, over public courtyards recieves direct sunlight, while other areas are shielded from the sun's path every day of the year.

Approximately 12 ft deep and 800 ft in length, it is self-supporting and combines structure, light and climate control in a single unit.