Graphic from the California “Passive Solar Handbook” — Regarding a Monolithic Dome’s super insulation, Perry wrote, “…three of the four structural dome construction materials — Airform, polyurethane and concrete (excluding rebar) — serve to isolate the dome’s internal environment from the outdoors.”

Graphic from the California “Passive Solar Handbook” — Regarding a Monolithic Dome’s super insulation, Perry wrote, “…three of the four structural dome construction materials — Airform, polyurethane and concrete (excluding rebar) — serve to isolate the dome’s internal environment from the outdoors.”