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Old 12-19-13, 04:41 AM   #22
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Theoretically you would need bubble wrap that had an air space of over 3/4" in order for there to be a difference, but because the bubbles are separate and not continuous the overall R value would drop to account for the flat spots; it would add roughly another R1 give or take, so if possible it wouldn't matter a whole lot.

Originally Posted by Daox View Post
I just wrote a quick blog on this because its so easy and cheap to do and I think more people should consider it.

One question I did have though. It looks like AC_Hacker used the bubble wrap with smaller bubbles while the pictures on Gary's site look like he used the bubble wrap with larger bubbles. I'm wondering if the larger bubbles would be superior to the smaller ones? It also seems like AC_Hacker used two layers of bubble wrap versus Gary just using one. Anyway, things to consider and compare.
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