Floor 2, 2002 (Galleri F15, Moss, Norway, Tent, Rotterdam, Museum van Bommel van Dam, Venlo).

A surface made of corrugated iron on pallets covers part of the room. The sensation of walking on a roof is violently interrupted every few minutes by mechanical devices hitting the iron plates hard from underneath. At each beat of the device the plates jump several centimetres providing a feeling of uncertainty and surprise.