Dutch... I see what you mean now. Thanks for the pics and description.
Quote:
Originally Posted by Cole_Robbie
I am starting to learn that the real point of the double-inflated poly layer that is a common covering is not the increase in r-value nearly as much as it is that you don't drop 5 to 7 degrees below the outside temperature due to atmospheric radiation cooling. On a cold night this week, my single-layer poly structure felt like a refrigerator inside. I could feel the temperature difference on my skin when I stood outside and reached in.
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Interesting premise.