The monolithic-like concrete dome home in Arvada, Colorado is often called a spaceship. The name stuck. The “Spaceship” house was built in 1978 by Clarence and Louise Lederhos who lived in the home until 2016. Architect Jason Elliott Purdy designed the house. Construction of the home utilized an inflated form, polyurethane foam, and steel-reinforced concrete. It is an air-formed, steel-reinforced, concrete structure with polyurethane foam insulation. The steps describing its construction sounds like it diverged from the Monolithic Dome process, but the end result is similar. … read more