‘or2’ by orproject at the london architecture festival all images courtesy of orproject

‘or2’ is an installation by london-based practice orproject (francesco brenta, christoph klemmt, and laura micalizzi), located at the entrance of the italian cultural institute as part of the london architecture festival. constructed out of photosensitive polygonal segments, the single surface roof form has the ability to turn opaque pink in the sun or translucent white in the shade. photovoltaic cells are also integrated into the polygonal segments, transforming the installation into a lighting device at night by releasing the energy collected during the day.

‘or2’ is based off the studio’s original project ‘or’ which was exhibited at milan design week 2008, where it took photoreactive technology to an architectural scale, filtering a whole courtyard with light or shade depending on the time of day.

orproject at the london architecture festival detail

orproject at the london architecture festival

orproject at the london architecture festival

orproject at the london architecture festival

orproject at the london architecture festival gradient of photoreaction

orproject at the london architecture festival

orproject at the london architecture festival the original ‘or’ project at milan furniture fair 2008 in collaboration with scenario architecture (ran ankory and maya carni) and elisa oddone

orproject at the london architecture festival detail

orproject at the london architecture festival

orproject at the london architecture festival translucent white at night

orproject at the london architecture festival

orproject at the london architecture festival ‘or’ from above the courtyard