Hi, I'm designing a semi-permanent 12' hexayurt that uses some one-off material I've just obtained - aluminum-clad 1/2" plywood panels. Skins are .040 2024-T3, i.e. a reasonable thickness of an aircraft-grade alloy. The panels are SUPER stiff even more so than I hoped (same I-beam principle as SIP panels, and while it's much thinner, the plywood is firmer than foam, and the aluminum way more so than OSB). I plan to screw them to mitered dimensional lumber to effect the joins, which will also provide some extra frame strength. And probably aluminum flashing on the outside for extra fastening strength and water-tightness.
There's been lots of talk of using Reflectix to insulate plywood hexayurts but, for a structure whose interior is already highly reflective, it would seem intuitively that an extra layer of foil would be somewhat if not totally redundant. Maybe just plain old bubble wrap, presumably much cheaper, would suffice? But admittedly I'm fuzzy on the physics of insulation, and maybe there's something key about the mylar foil being right on the surface with the bubbles (so to speak). Of course I have no idea about the R-value of these panels on their own, plywood alone is crap, but no idea what gluing on aluminum does. At a minimum the reflective interior probably will yield an improvement. But this is for a somewhat cool & damp Pacific Northwest climate so some additional insulation is probably advisable to ensure toasty nights in an off the grid (i.e. no electric heater) situation. I'd be greatly appreciative of any & all advice. Thanks, --Bill --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
