How a spiral igloo is built - GIF

How a spiral igloo is built.

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Previously:

https://www.homemadetools.net/forum/...847#post105589
https://www.homemadetools.net/forum/...5715#post82392
https://www.homemadetools.net/forum/...2939#post97575

I had one built for me about 40 years ago and spent the night out at about minus 30C. It was a one man model, much smaller than the one shown and took about an hour for one old man who was hustling. The first blocks were cut from the inside of the future structure in an age old sequence. You need wind packed cold snow to make these blocks from.
Rob