Comment: Their niche is the " complete structure in minutes " feature.

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In reply to comment: Monolithic concrete domes (see in situ)

Their niche is the " complete structure in minutes " feature.

Having been in construction most of my adult life, I was very impressed with the speed in which this unit is finished.

What usage, I imagine FEMA will order a few thousand at some point.

Drew, by the very grace of GOD through the blood of Christ Jesus.
"there shall come after us men whom shall garner great wealth using our system, and having done so shall seek to slam the door of prosperity behind them." George Washington