Hexayurts in Spain. Hadn't seen that on the email subject! >two week summer camp where we will have a number of workshops etc >and I'm planning on moving to the site for a few months to get the site ready. >quick to build which I can live in for a while. >sustainable (or least recyclable) materials >durable enough to last a few years and be usable all year around - which I think means it needs to be insulated. >summer (30 degree centigrade plus), winter (down to -3 in February >fairly dry, with most of the 750mm of annual rainfall happening in winter and days of 30mm+ rain not uncommon.
I've never built a real size hexayurt, just small models. http://imagina-canarias.blogspot.com/search?q=hexayurt And helped with documentation. http://www.appropedia.org/Hexayurt_H13_Plywood See if some of that helps? Maybe the "ferro" part can be cloth? http://www.ferrocement.com/bioFiber/y5-1x2/biofiber_y5.1.es.html My experience with supplies in the Canaries is not that good. Managed to find marine plywood, but not the poli-iso panels. Maybe I don't know what to look for, or where. So if you find them, I'd love to know the Spanish name for it. Gracias. Lucas 2012/3/13 Vinay Gupta (Hexayurt Shelter Project) <[email protected]> > Ah, yes, I've been reading your web site with some interest! > > Could I persuade you to permanence? > > We *think* that polyiso + ferrocement is the way to go - extremely > durable, multi-decade buildings for very little money, fully insulated, > long-term waterproof, rotentproof, sun-proof, bug-proof etc. so rather than > building a temporary thing and recycling it, you build a permanent thing > which is *very* light on materials (the cement is only 1cm thick or so!) > while we evolve a good soy-based insulation foam (it's coming, lots of > people are working on it.) > > Have you seen the "hexayurt for haiti" doc which describes how to lap the > pieces for waterproofness, and seen Dylan Toymaker's insulated panel H13? > > Vinay > > On Tue, Mar 13, 2012 at 3:41 AM, Christopher Fraser <[email protected]>wrote: > >> Hello, >> >> I'm part of a group developing an permaculture / Open Source Ecology >> project in Extremadura, Spain. >> >> http://openeland.org/en/ >> >> We're organising a two week summer camp where we will have a number of >> workshops etc and I'm planning on moving to the site for a few months to >> get the site ready. >> >> So, I'm wanting to build a structure which will be quick to build which I >> can live in for a while. It it works out I may be some more for the camp. I >> want to use sustainable (or least recyclable) materials as much as possible >> and want to structure to be durable enough to last a few years and be >> usable all year around - which I think means it needs to be insulated. >> >> The site is fairly hot during summer (30 degree centigrade plus), but >> gets cold over the winter (down to -3 in February when we were camping >> there!). It's general fairly dry, with most of the 750mm of annual rainfall >> happening in winter and days of 30mm+ rain not uncommon. >> >> I've also been looking at small building designs like these: >> >> http://www.countryplans.com/**jshow.com/y2k/listings/3.html<http://www.countryplans.com/jshow.com/y2k/listings/3.html> >> http://www.simplesolarhomes.**com/steps-for-building-a-** >> small-solar-home/<http://www.simplesolarhomes.com/steps-for-building-a-small-solar-home/> >> >> I'm also thinking about a Hexyurt, but concerned about getting the >> weather proofing and insulation right. >> >> One options is to build insulated panels for the roof and walls. Help, >> wood, or cellulose is probably the preferred insulation to be sandwitched >> between the OSB on the outside and some other interior board (probably more >> OSB), but rockwool is currently about 10% the cost here at the moment (and >> is apparently partially made from recycled materials and itself recyclable). >> >> I can visualise how the panel construction for the walls, with vertical >> 60 degree wedges between the panels sealed with silicone. I'm not >> completely sure how the roof would work and would be interested to hear >> ideas. >> >> One thought is that a good quality of seal between the top of the walls >> and the roof could be achieved by a layer of foam that compresses when the >> roof is put on. >> >> My main concern is water getting in the roof seams. I was thinking I >> could cover the whole structure in tar paper, but I don't seem to be able >> to source it in the UK or Spain. The plastic membrane equivalents are only >> UV stable for a few months. >> >> My next idea is the membrane could go under the OSB. It would be quite a >> complicated construction but the only way I can see it working is there's a >> strip of plastic under each edge seam, which is allowed to fold into a bit >> of a valley and is secured on the inside by two pieces of batten (which >> would also form the cavity for the insulation - will be complete pain to >> cut and fill with rockwool type insulation). >> >> I'm not sure if a H13 form roof construction would make this easier by >> only having two angled roof edges or harder by introducing a horizontal >> seam. >> >> Compressible foam could also be used between the roof triangles to >> improve air tightness. I am thinking about passive heating and cooling >> ventilation like this: >> >> http://www.simplesolarhomes.**com/category/passive-cooling-**and-heating/<http://www.simplesolarhomes.com/category/passive-cooling-and-heating/> >> >> Anyway, I'm interested to hear ideas. I realise polyisocyanurate >> insulation boards would be much more straight forward, but I am keen to >> avoid it as it's not widely used or recycled (in Europe at least, as far as >> I know). >> >> Christopher. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "hexayurt" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to hexayurt+unsubscribe@** >> googlegroups.com <hexayurt%[email protected]>. >> For more options, visit this group at http://groups.google.com/** >> group/hexayurt?hl=en <http://groups.google.com/group/hexayurt?hl=en>. >> >> > > > -- > Vinay Gupta > Free Science and Engineering in the Global Public Interest > > http://bit.ly/gupta_arc <http://bit.ly/gupta_arc%20>- the Gupta State > Failure Management Archive > http://bit.ly/gupta_ark - or see it directly on Archive.org > > http://hexayurt.com - free/open next generation human sheltering > http://hexayurt.com/plan - the whole systems, big picture vision > > "In the midst of winter, I finally learned that there was in me an > invincible summer" - Albert Camus > > Twitter/Skype/Gizmo/Gtalk/AIM: hexayurt > UK Cell : +44 (0) 7500 895568 / USA VOIP (+1) 775-743-1851 > > -- > You received this message because you are subscribed to the Google Groups > "hexayurt" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/hexayurt?hl=en. > -- You received this message because you are subscribed to the Google Groups "hexayurt" group. 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