congratulations,

but aren't most domes built with the foam on the inside of the membrane,followed by reinforced concrete?
this creates a great use of thermal mass
mac

If you leave the airform in place that is the technique. Reusing airform the concrete is sprayed from the outside then foam

i am near by. i would like to see your dome

The 30 foot dome located at 7575 E Ringer Court Inverness 34453
The dome is for sale owner financing at pre construction prices currently $85,000 1/2 acre
Usiing 3 lb closed cell foam in the exterior will prevent water intrusion and the heat will never reach the concrete.