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MN Renovator · 02-24-13, 02:25 PM

Everything I've read about how a radiant barriers work is that they require an air gap. I'm not certain that adding the foil layer did anything for you.

02-24-13, 02:25 PM	#17
MN Renovator Less usage=Cheaper bills Join Date: Nov 2010 Location: Minneapolis, MN Posts: 939 Thanks: 41 Thanked 116 Times in 90 Posts	Everything I've read about how a radiant barriers work is that they require an air gap. I'm not certain that adding the foil layer did anything for you.