I studied the discipline "resistance of materials" at the university, I know why a wooden beam and rafters work like this. I just have never seen such use in our area.
I have already seen similar building blocks in our country. Now there are a lot of such "light concrete".
I understand. I can see why the ICF construction would be popular. From what I have read, they work best in warmer climates. I can imagine that they will be very popular in time.
Thanks again for your input.