A small space doesn't have to cramp your style. Live large in any size dwelling with some spectacularly sophisticated tricks.
What's Your Roof Doing for You?
This roof has three distinct work areas. The rocks collect rainwater that is channeled to two large plastic rain barrels. These provide enough running water for the shower, the sinks and the toilet. The green roof provides thermal mass and insulation for the structure and a habitat for other species in the area.