We now have 13 hexayurt models which have been built and tested and are suitable for a variety of purposes. The shelters share a common feature: they can be made from standard industrial 4'x8' (1.2m x 2.4m) panels from materials like plastic, polyiso insulation, plywood, OSB, sandwich panels and cardboard. In disaster relief applications the hexayurt can cost less than a tent, and be constructed in far larger quantities than tent supplies allow.
At long last, we're beginning to get some real community documentation going. Documenting the hexayurt has always been a big job, and I'm delighted to have some new resources for builders.
Julie Danger's Camp Danger folding hexayurt videos document a really easy way of making folding hexayurts. Julie's videos are by far the easiest way to understand how to make hexayurts, and highly recommended.
Then there's the Nearodesic Tridome Report by the Space Gnomes (who have more regular identities on the report). This is an incredibly useful document, with full structural engineering calculations for the Tridome hexayurt in polyiso under Burning Man conditions. I'm absolutely delighted this research has been done, and I hope you'll download it and give it a look!
George Fisher has created a survivalist's hexayurt guide (I hope he won't mind me calling it that) which is a bridge I've wanted to see built for years. I've always thought that the hexayurt was an integral part of grass roots resilience efforts in earthquake zones and similar places, and it's good to see the system percolating across cultures.
Every red dot on this aerial photo from 2011 is a hexayurt. There are even more in the 2012 aerial picture but it's a little cloudy!
But we do not have an exact count for 2013 because there is no freely available high resolution satellite data. There is a satellite picture but it hasn't been released in high res yet. Ground estimates are 50% to 100% more hexayurts than 2012, which would be well over 1000 hexayurts, but until we get the satellite imagery, we just won't know for sure.