I have not tried it, but if you have exposed rafters, I can't think of why it would not work...
Put fiberglass between the rafters to fill the space and staple the Reflectix on the bottom of the rafter to help hold the insulation in place.
A layer of white or lightly colored muslin stapled on the inside would then help support the reflective insulation, and give you a nicer, brighter look inside, (without having the "wrapped in tin-foil" look).
Admittedly, you lose the appearance of the exposed rafters, it just depends on how much work you wanted to do in that direction, and if you ever plan to move your yurt.
You could still leave the bottom of the rafters exposed, but staple the other insulation in the "triangle" showing between the rafters.
You could make some light battens, say 1.5" X .5" and use them to staple the Reflectix and muslin in place, and still have the appearance the edge of the rafters. Just some ideas.
On the Asian steppes when it is really cold, I was told they build another yurt inside their yurt as a sleeping room, and they said the difference was remarkable. A small fire kept the smaller yurt warm in this enclosed space which helped trap the heat. I haven't tried This yurt-in-a-yurt myself.
I am not sure most of us are prepared to go that far, but we aren't trying to stay warm in a howling wind at -20C to -30C huddled around a fire fueled with a pile of dried horse poop that you have been collecting for weeks. How many cords of horse poop do you guess you would need?
I hope everyone is warm this winter, and their pipes keep working.
Rod
rod
yurtlocker.com
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