Quote:
Originally Posted by wiredgeorge
I used the decking with the tin foil on when I built our laundry room (barn style building attached to the house) as it was supposed to keep heat from building up in the loft part. I am not sure what "R" value it has. The loft part isn't otherwise insulated but the laundry room ceiling/walls are.
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I have the same situation. I can't tell the difference, the stuff is too high off the floor.