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opiesche · 01-04-14, 03:48 PM

No, just a thin reflective foil. Looks like it's two layers of Polyethylene with vapor deposited aluminum between. It doesn't insulate by itself, just reflects IR back from the underside of the roof.

01-04-14, 03:48 PM	#3
opiesche Helper EcoRenovator Join Date: Jul 2012 Location: Rohnert Park, CA Posts: 99 Thanks: 4 Thanked 14 Times in 9 Posts	No, just a thin reflective foil. Looks like it's two layers of Polyethylene with vapor deposited aluminum between. It doesn't insulate by itself, just reflects IR back from the underside of the roof.