The one exception might be casting panels in the field, but at that
point, if you can cast a panel, why not cast a dome?
Vinay
--
Vinay Gupta
Free Science and Engineering in the Global Public Interest
http://hexayurt.com - free/open next generation human sheltering
http://hexayurt.com/plan - the whole systems, big picture vision
Gizmo Project VOIP : (USA) 775-743-1851
Skype/Gizmo/Gtalk : hexayurt
Icelandic Cell : (+354) 869-4605
"If it doesn't fit, force it."
I tend to prefer Tipis for the "day 0" shelters, mostly because they are
simpler than domes. You use the same materials (long, or lashed
together supports) and lay them together in uprights. Then wrap them.
They can be used in the warm (loose upper wrappings, with a raise at the
bottom for ventilation) or in the cold (fire inside, good draw) or in
the windy/rainy/snowy (it's height/width ratio sheds really well).
Then I would go onto a hexayurt, as fast as I could, then, onto more
permanent structures (adobe cliff houses?)
Percival