I have just returned from Italy, Texas after taking Monolithic's workshop (6 days) and actually building two domes (30 ft and 24 ft.) The energy cost to heat and cool a monolithic dome is about 25-33% of a conventional house. They will withstand 400+ MPH winds as well as any magnitude earthquake we have on record. Material costs for the shell only are about $15/sq ft.
Offered by Michael.