They look very cool but I would assume they suffer from some of the same problems that made geodesic domes somewhat impractical for living spaces. For example, round living spaces are aesthetically pleasing but it's not the most efficient use of space and there are real problems with integrating all the rest of your stuff - tv's, appliances, furniture etc - none of which is going to fit very well. Some people reportedly dislike the acoustics in domes which tend to carry even a whisper from one side to the other. On the plus side, these foam things would certainly be more weatherproof than geodesic domes which were notorious for leaking around the many seams.
I'm dubious about what the "Flame Retardant" can actually prevent. In my past, Polystyrene has always proven to fall in the "very, very flammable" category.
I'd like to see a video of someone experimenting with progressive intensities of open flames to one of these prefab pieces before I consider it a viable opportunity as a habitat.
I'll second that. When I was 12 the local factory that produces polystyrene caught fire in the middle of the night. It burned to the ground and the police and fire department evacuated the whole town, all 10.000 people, because of the toxic fumes. Luckily nobody got hurt.
Wow, I have not seen these since I cracked one of my 70's era homesteading books. Then they were using an inflatable bladder and spray foam rather than prefab segments.
