"James "Cubby" Culbertson" wrote in message

How about concrete? It can be easily done yourself with premade
insulated forms. American Polysteel is in Albuquerque www.polysteel.com


I may swing by there and ask a few questions. Hadn't even considered
that. Sounds expensive though.
Thanks Edwin!

I'm told it is comparable to a stick built building, but the energy cost
for heating and cooking is about 40% less. About 5% of all new houses are
build that way.