1981? That's about the time I was working as a carpenter in the Cerro Gordo Ecovillage. They had the community, but the finances turned into an ugly hairball.
So—started in '81 and not buried? Foamed on the inside or outside? How many square feet?
Having worked on a lot of domes, I got to live in one as a renter for 7 years. Happiest time of my life for varied reasons. It had radiant heat in the ceramic tile floor, and a hot tub in the bathroom.
I've got mixed feelings about Monolith. I don't think spraying concrete against a pneumatic surface give much control over the shape/surface. Maybe they use higher pressures than I realize. And they seem to throw insulation at it until there is no further improvement, i.e., overkill.
Beyond this boat-tail business, I'm working on an 18' diameter garage that could also be an indoor windmill/solar heat pond. Trouble is I'm land poor.
