Interesting, but, how much soil will those roof arches support, and if soil is rather thin, with that much roof surface/room volume, a tornado overhead will open it like a can of beans.

Hope owner never finds out.

edit never mind, I see on video he poured a concrete roof, etc

Last edited by jcc; 03/26/20 11:26 PM.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.