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There is a lot of bamboo house here and I can say that their energy is far better than concrete house. I haven't been in a concrete dome but I am willing to bet that that box bamboo house is far...

while the dome shape is more stable than all other shapes it also makes it more complicated to construct. A flat paneling with groves for plumbing and electrical can be incorporated easily on flat...

thanks for the suggestion. across the street there is a car wash that use foam. its getting closer to reality:)

cant wait to try this. I wonder if they use ordinary portland cement or just pure grounded limestone