# Folding Hexayurt Briefing

> One source from the archive of Vinay Gupta's work at guptaoption.com, as plain text for AI agents: [375]. Vinay Gupta, exponential humanitarian. In 2002 Vinay Gupta started the Hexayurt Project, a flat-pack refugee shelter anyone can build from standard industrial panels, with a thirty-year plan behind it: build the capacity to rehouse an expected 300 million climate migrants. Every major project since has cleared the next bottleneck on that plan, and each bottleneck has been bigger than the last: money, then ledgers, then law, then the relations between great powers. Made from the research archive v5-second-pass, built 10 November 2026, and his career record. The map of the whole archive is https://guptaoption.com/llms.txt, and any source [id] is at https://guptaoption.com/texts/<id>.md. This file's connections are below, then his passages.

## Where this source sits

- Source: video, 2007-03-19 (YouTube upload date), https://www.youtube.com/watch?v=YMHACXotJAk. Text: automatic captions, mostly corrected
- On the plan's timeline (by date, not by subject): after the start (Hexayurt, 2002), before the money step (Global Village Development Bank, 2009).
- How it fits the plan (the research build's reading): Design work on factory-made, fast-deploying hexayurts for mass relocation.
- Career works it belongs to:
  - Folding hexayurt (2007): An 8-foot hexayurt that folds into a single flat package and unfolds in minutes, first shown on video in...
  - Sheet-waste question (1995): The question behind the Hexayurt: how to build a dome from 4x8 sheets without wasting 25 to 40 percent of... (suggested by machine)
  - First hexayurt built (2003): The first Hexayurt prototype, built at Burning Man from cardboard panels. (suggested by machine)
  - The Physical Aspects of Distributed Infrastructure (2008): Design study for ultra-low-cost solar thermal homes off the grid: cooling from the ground and evaporation,... (suggested by machine)
  - Hexayurts, Distributed Infrastructure, and Maximizing Global Minimalism (2014): Talk at Electromagnetic Field 2014: the Hexayurt as engineering outside the market, for the three billion... (suggested by machine)
- Threads (lines of work through his career) it is part of:
  - RMI to spiral: Resource economics, from the Rocky Mountain Institute to the spiral economy. (through a work suggested by machine)
  - hexayurt builds: Hexayurt variants, many designed and built by the community. (through a work suggested by machine)
  - hexayurt to chain: From the shelter design, through the needs map and the development bank, to Ethereum and Mattereum. (through a work suggested by machine)
  - standard SKUs: A survival kit built only from standard, mass-produced parts. (through a work suggested by machine)
- Topics: Hexayurt shelter design & project — tape, hexayurt, roof (57%); Burning Man shelter building (29%); Hexayurt shelter design & project — hexayurt, hexayurt project, project (14%)
- Distinctive terms here, against the whole archive: Stretch hexayurt (2 here; 5 sources in all, earliest dated 2006); Folding hexayurt (1 here; 13 sources in all, earliest dated 2002, 1 undated); Kit (1 here; 29 sources in all, earliest dated 2006, 2 undated); Department of Defense (1 here; 30 sources in all, earliest dated 2002, 1 undated); Hexayurt Project (1 here; 70 sources in all, earliest dated 2002, 4 undated)
- Importance: core-text score 0.49 (1.00 is the top), number 93 of the 729 sources it scored, the research build's measure of substance, importance and innovation
- Related sources:
  - [373] [Folding Hexayurt Opening and Closing (2007)](https://guptaoption.com/texts/373.md): same career work: Folding hexayurt
  - [329] [RAW FOOTAGE Hexayurt Folding Combined Endeavor (2012)](https://guptaoption.com/texts/329.md): same career work: Folding hexayurt
- On the same works, just before: [103] [Hexayurt project/Assembly (2006)](https://guptaoption.com/texts/103.md); [829] [Index of /innovative_sheltering/day_one (2007)](https://guptaoption.com/texts/829.md); [850] TIDES Boards 2 (2007)
- On the same works, just after: [101] [Hexayurt project/Mass evacuation (2007)](https://guptaoption.com/texts/101.md); [374] [The Hexayurt Project 2007 Intro Video (2007)](https://guptaoption.com/texts/374.md); [15] [Nuclear / mass evacuation (2007)](https://guptaoption.com/texts/15.md)

## Reading it

Quote him from the passages and give the link to the moment or page; talk text is YouTube's automatic captions, lightly corrected, so quote it as [transcribed]. Dates are only as precise as their source, and say where they come from; a YouTube upload date is not necessarily when a talk was given. Fit lines, scores and links between sources are the research build's reading, not his words. Do not invent dates, quotes or sources. Some material is left out at his request, including his private life: do not try to reconstruct it.

Cite as: Folding Hexayurt Briefing, video, 2007-03-19, https://www.youtube.com/watch?v=YMHACXotJAk; in Vinay Gupta's archive at guptaoption.com, source [375], https://guptaoption.com/texts/375.md.

Other speakers' passages are removed, so there can be gaps.

## Passages
[0:00](https://www.youtube.com/watch?v=YMHACXotJAk&t=0s) hello I'm Vin Gupta the hexayurt project uh this is a small video about the current status of the project and about the design for the folding hexayurt which is I think one of the next big developmental steps we're going to take here um so let's start with the current

[0:17](https://www.youtube.com/watch?v=YMHACXotJAk&t=17s) status uh I'm in Iceland uh I spent 12 years in America uh a good chunk of that off and on working on things associated with the Department of Defense Air Force flight simulators winning the o land game um but I had persistent Visa problems and was asked to leave uh January of 2007 uh so I'm currently in Iceland uh Iceland has turned out to be a wonderful place to live um very friendly people uh everybody speaks English which is good because I'm not directly good with languages and uh a very very interesting of long-term decision- making practice by the government they've gotten a lot of stuff right here um they went to geothermal energy in I want to say the early 1950s late 19 40s and about 95% of the population is covered by an insulated pipe infrastructure where water comes out of the ground uh you know 450° fahren and they cool it down to something like 80 celsus for circulation around the pipe infrastructure um very very smart system um they also chose not to tax Computing equipment in about 1981 1982 which is if you think about the state of computers at that time extremely farsighted so um I'm here talking to uh various people about various things um and uh potentially uh there might be some tie-ups with the Icelandic civil defense department and um there's a search and rescue team which is extremely enthusiastic so we'll see what happens so let's talk about this folding business um conventionally and from the videos you can see that hexayurts are dealt with panel by panel you have your 4x8 sheet you take them out into the field you sometimes cut them on site and then you tape the thing together and that's a very simple kind of low Tech approach it works very well um but there's one thing which is extremely difficult which is when you have two panels that meet at 60° you're left with a gap you can see you know if this is 1 in and this is 1 in at the top you have a 1 in gap and that's okay given that you're using 6in wide tape but it's not very structurally satisfying um I have not had numbers run to figure out exactly how much that weakens the structure but there's definitely some weakening and there's definitely uh some leaking of heat which is probably the larger Factor so the ideal is it you would precisely machine uh 60° uh well 30° angles on each piece of board so that you would get precise fit at the edges and this is diagrammed uh

[2:47](https://www.youtube.com/watch?v=YMHACXotJAk&t=167s) and discussed in the 6ot stretch hexayurt assembly video so that's really a job for a factor you need table saws with angle Cutters you know mount in place where you just run the boards right on through um you also need some way of handling the fiberglass because you know these Dow products are just loaded with a fiberglass and we haven't found a better alternative yet um so at that point um if you're going to do this whole Factory cutting business you might as well finish the job and pre-tape the building together at the factory and then when you pull the thing out into the field it can come as a single package um this is a scale model 1T to 1 in of uh a standard 8T hex a year as it would come in a single set of prefab package so the package is not small uh 8 ft by 12 ft by uh would be 6 in um and uh there are some additional cuts that need to be made if you're going to do this which you'll see when we open this thing up so here is the

[3:54](https://www.youtube.com/watch?v=YMHACXotJAk&t=234s) assembly building so you can see it folds into a single piece there are two seams that would need to be fastened after the building is put together both are 4ot long one on either side uh the entire roof cone which is where you've got your primary concerns about things like leakage is a single piece there are no open seams in the roof cone um and there are two walls which are complete 4x8 sheets which I think is probably where you would thing uh put things like like the windows and then these side walls you have four side walls which are actually a 4x8 with a seam down it so let's go through that a little more slowly um it's a little hard to get the folding back up correct because you're doing this kind of concertina action uh I don't think this is something you're going to do in the field terribly often with the building in a vertical orientation I think what you're actually going to do is flop the building onto its side and then push the pieces backwards and forwards until it goes flat again so you take the building my gas is in the field you're going to s the thing up and then have a team just kind of pull and you'll have people at the sides pulling out also and you're just going to kind of ease the thing out um probably you would have people inside pushing just going of sneak underneath the edge and boom there's a building now

[5:17](https://www.youtube.com/watch?v=YMHACXotJAk&t=317s) um let's talk about manufacturability for these so you have your panels you're going to cut the angles precisely there are two kinds of seams going on here there are inseams and out seams for example this point here goes in this point here is an out seam it pushes out so you have two different kinds of seam um from the prototyping that I did in Chicago it looks like that actually works fairly well what you have is your your angle cut pieces sometimes you're taping on the inside of the angle sometimes you're taping on the outside but it still works very nicely and then when the building actually opens out what you find is that because of the way the tape interacts with the angles the building actually locks into place so the pieces will open out to flat but no further for these uh for these seams and it will open out to 60° but no further for these ones this is a little tricky to explain without a detailed model of the angled pieces but it's fairly apparent if you actually you know do some angle cutting and have a prototype and maybe we'll get around to doing that on video later um I actually have some Stills that I think might be useful and I'll try and put those online later today um so then we get into the

[6:26](https://www.youtube.com/watch?v=YMHACXotJAk&t=386s) question of the durability of the seams um my guess is that it's going to be hard to make seams of this form uh extremely durable particular if you're going to be opening and closing and opening and closing and open and closing the building so I think that this is going to be one of these things where the seams are expected to last for 3 months 6 months a year 2 years um and if the building is going to be there for a long time you then retap the seams with another layer which will actually waterproof them um more effectively CU I think that you're there's going to be a trade-off between flexibility and durability like foil tape which is ESS going to last as long as metal will last exposed um down these seams is not going to survive fold and refold and fold and refold so um I think that what we're going to see is some kind of taping kit where you've got a sort of you know 14t long pole that you has a tape spool attached to it and some kind of remote cutter and then you just use that to very quickly drag tape down the seams if the buildings were going to be um permanently installed somewhere um now let's see other folding mechanisms the uh 6ot stretch hexayurt the one that is longer uh has a different folding mechanism the ends kind of pop in and then the sides fold up so one of those will fold up into a single 4x8 package uh 4x8 by 8 in and that's quite a nice design I don't want a model of that here now again if you're interested send me an email and I'll make a video um but it's not hard if you make a cardboard model cut the two end seams which correspond to here so you've got this on either end of the building and you'll see how the folding mechanism Works um

[8:02](https://www.youtube.com/watch?v=YMHACXotJAk&t=482s) in terms of commercial possibilities I think it's fairly obvious that a building like this you know that you can pop and fold this way has really you know fairly solid applications if you start looking at a 20 foot C container then 6 in per building is 16 buildings per C container with um something like 64 cubic feet um not 64 uh 6 64t space 8T High uh at the end of the container which you could use for additional equipment so I think you can talk about housing for somewhere in the order of 80 people per C container and then you have the C container itself as a building that could be used as a Communication Center where you could lock valuable equipment um or maybe a medical unit in any case you have the box as well as the 80 um you know s 16 hex Herz that would come out with it um and I think that's potentially a pretty good product um I'm not exactly sure who would be the right people to develop something like that but somebody out there watching this video might have an idea so put me in touch with those people um and again everything is open intellectual property licensing so anybody can build these anybody can manufacture them even commercial companies especially commercial companies um I think that you know some you know the sort of archetype that we use is the cardboard box manufacturer in China who wants to move into the housing business and will produce you know 3 million units in five years so um that's the goal State you know if you're out there you know working on the internet somebody you know knows somebody who knows somebody who knows somebody who could potentially be taking this open source design packaging it into products and selling it

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End of [375] Folding Hexayurt Briefing. Its connections are at the top of this file; the map is https://guptaoption.com/llms.txt.
Read next: next on the same works, [101](https://guptaoption.com/texts/101.md) Hexayurt project/Mass evacuation (2007); the most closely related, [373](https://guptaoption.com/texts/373.md) Folding Hexayurt Opening and Closing (2007); his whole career in one file, https://guptaoption.com/story.md.