We’ve been around about this a bunch of times, but never really settled on a decision. The question is whether or not these insulated shades perform as advertised. In the last go round, I think we just finally said, “These things are 1/4″ thick, they can’t possibly be adding R-6 in performance” and left it at that. The other thing that always turned me off was that there seemed to be no one really making them. This company seemed to go out of business for a while, but now seems to have retooled and was featured in Building Green. I’m posting this just to have a record in case we want to review these again.