I've been rolling around ideas about this type of usage for a while. I think you could build a semi-permanent hexayurt on the same principles just by bonding the insulation on either side with some 1/4" plywood or 1/2" OSB. Then it essentially becomes a lightweight SIP like they use in prefab housing, and you can use prefab building techniques to join the walls, etc. You can get construction grade SIP tape for the joints, for instance.
If you're not afraid of a little angle sawing with a table saw or a circular saw, you could also rip down the edges to make a nice joint. You could also rip a 2x4 to the right angle to fit into the inside corner, and bolt the panels onto it. I'm fairly certain that if your joints are solid enough, you would get a very sound structure without the need for any framing. Give it a good coat of exterior paint, maybe even some shingles, and you've got a lasting structure. As to the specific foam, I think any kind of rigid insulation board with a high enough R value should work fine. I think the polyiso boards have the best R values in general, but you can also get several other types from Home Depot. The aluminum surface is nice for temporary hexayurts because it provides a weather and solar barrier, but you don't need that if you're sandwiching the insulation between other materials. Go for the highest R value you can get. Whatever method of heating you choose, it's always nice to use less to heat the space. The 2" R-MAX polyiso board is R13, which when paired with some plywood will get you up to the code standard for an exterior wall in a modern building. Pretty good! I agree about framing in a regular door, and probably a window or two. Good to have light and air flow in there. All the best, Jack On Fri, Jan 11, 2013 at 8:34 AM, Chad Cole <chadhc...@gmail.com> wrote: > For something that will be semi-permanent, you may want to consider > OSB sheathing with a 2x4 frame. I have a shed built from 7/16 OSB and > 2x4s and insulated with Prodex (www.Insulation4Less.com). I've used it > for a milk barn for about 18 months and it's worked great. I use a > small "indoor-safe" Little Buddy propane heater, and it warms up the > inside pretty quickly. Here are some photos: > http://yurtbuilder.blogspot.com/2012/03/osb-hexayurt-aka-milk-barn.html > > If you just need a place to sleep vs a full blown living space, you > might want to try a smaller version - either 4 foot sides or the > smaller stretch version. I'm working on a small version with 4 foot > sides for a winter campout next month - if you want more details, let > me know. > > Chad Cole > > On Fri, Jan 11, 2013 at 9:05 AM, RichShumaker <richshuma...@gmail.com> > wrote: > > Sounds like it will work well. Are you just sleeping in it or is it > being used 24/7? > > I would recommend 6' walls adds I think 2 extra panels on a standard 8' > hexayurt. > > I cut my walls to 6 feet and combine the extra 2 feet sections to form > the extra panel. > > I build it with 2 panel per side 4' by 6' per panel. > > I would frame in a real door. > > If the hexayurt wasn't so airtight I would say to try a rocket stove > heater but that would probably be bad. > > A small electric heater should work well as 1.6" of insulation is a good > amount. > > LED lights work well and bouncing them gives a nice room light with a > low cost. > > Have fun and let us know how it goes. > > Rich Shumaker > > > > -- > > You received this message because you are subscribed to the Google > Groups "hexayurt" group. > > To view this discussion on the web visit > https://groups.google.com/d/msg/hexayurt/-/-MiVdia8bpkJ. > > To post to this group, send email to hexayurt@googlegroups.com. > > To unsubscribe from this group, send email to > hexayurt+unsubscr...@googlegroups.com. > > 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. > To post to this group, send email to hexayurt@googlegroups.com. > To unsubscribe from this group, send email to > hexayurt+unsubscr...@googlegroups.com. > 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. To post to this group, send email to hexayurt@googlegroups.com. To unsubscribe from this group, send email to hexayurt+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/hexayurt?hl=en.