Roofs
The domed, freestanding roofs are 14" thick at the walls, tapering to 10" thick at the apex. They are interlaced with a grid of grade 60 steel placed 1' on center and further reinforced with corner and circumferential steel. To minimize the potential for leaks, there are only 2 roof penetrations for the entire house: the chase for the chimney and the chase for the range hood.