At first glance the house looks pretty normal, in fact a bit better than normal. The building standards used for this house are anything but normal. A husband and wife team, Karl Wanaselja and Cate Leger of Leger Wanaselja Architecture, built this house with some extremely green tricks.
The upper outside walls of the house are made of over 100 salvaged car roofs. Starting at a junkyard
in Berkeley California, they opted for gray colored car roofs with little dents or rust. These roofs were cut into strips and used for the upper exterior walls.
The lower walls used a siding made of poplar bark, a waste product of furniture manufacturing. They even managed to incorporate America's best selling minivan, the Dodge Caravan's side windows, into the design of the awnings. Of course the house uses many other features including solar, too much to list here, read on for details at the source.