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Old 06-07-2016, 06:54 PM   #1
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Reflection Insulation

Hi. We were going to adhere a layer of foil bubble insulation against inside of outer skin. Create a space and then another layer of bubble foil. Read where it says to space it away from inside of outer skin. Read also where they used thin batt between two layers of foil bubble. Help. We are confused. Overall what do you think is best way? Thanks in advance
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Old 06-07-2016, 09:41 PM   #2
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Might as well ask what kind of hitch you need. There's really no right answer, just a lot of opinions.

I loosely adhered bubble foil to the upper interior most likely to get direct sun using 1/16" foam tape, then spray glued 1.5" batts of rockwool on top. I also insulated the ribs with the same foam tape and some foam sill gasket. Not saying that's the best way, it's just what I chose to do, and it seems to be working pretty well so far.

I didn't think using the bubble foil as your my only insulation was a good idea, but plenty of people here do. It's not really designed for the application, so there's no "right" way to do it. Just be aware that you get no reflective value if it's touching the surface you want to reflect heat from, just a small r-value.
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Old 06-11-2016, 10:02 PM   #3
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Foil bubble has very little r value (R-1.0). Not much more than the aluminum shell (R-0.63). A waste of time and money in my opinion.
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Old 06-12-2016, 03:56 AM   #4
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Dave, if you search on the tradename Reflectix you will find lots of people have used this material. Happy hunting.
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