AC, I'm not sure who you are accusing of being smug about insulation? I am, as far as I know, the first person here to promote a project using radiant barriers in a form other than for cooling. Have you even read and understood the concept behind that thread I just mentioned? All I'm saying is that while the concept of using multiple layers of radiant barrier may be good in principle in a vacuum it won't work as you are advertising. But hey, if bringing physics to the table is being smug on this forum then I plead guilty. However, if you really believe that the stuff sold in the UK has over an over 20 R value per inch then I have this bridge I'm selling that you'll find is a real bargain.
