Half-buried in the hillside, the house has stable indoor temperatures in all seasons thanks to thermal mass and passive ventilation. In winter, radiant heating in the floors and a sculptural fireplace keep things cozy.  Photo 5 of 12 in How They Pulled It Off: A Cantilevered Green Roof

How They Pulled It Off: A Cantilevered Green Roof

5 of 12

Half-buried in the hillside, the house has stable indoor temperatures in all seasons thanks to thermal mass and passive ventilation. In winter, radiant heating in the floors and a sculptural fireplace keep things cozy.