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Post by kevschofield on Mar 1, 2011 10:38:41 GMT -5
I just picked up a couple 4x8 sheets of insulation that is backed on both sides by foil, one side is mirror like, the other dull silver.. Its a Dow product with a R3.3 rating and is 1/2" thick.
When I put the pieces I cut in to place, should the shiney side go towards the skin? or the dull side? or does it even matter?
Thanks~
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Post by distant75 on Mar 1, 2011 11:54:32 GMT -5
I was told shiney side out because it reflects but this is want I found on it.
Materials with one shiny side (such as foil-faced polystyrene) must be positioned with the shiny side facing an air space to be effective. An aluminum foil radiant barrier can be placed either way - the shiny side is created by the rolling mill during the manufacturing process and does not affect the reflectivity of the foil material. As radiant barriers work by reflecting infra-red energy, the aluminum foil would work just the same if both sides were dull.
Dennis
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Post by kevschofield on Mar 1, 2011 11:57:27 GMT -5
Hey thanks, good info~
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