The only Radiant Barrier Foil that I found to drastically work so much better than any other insulation product not just the normal 5-star R-15 radiant barrier foils said to work better than R-30 Fiber Glass, is Energy Conservation Specialists =R-53 Radiant Barrier Foils, 97% Reflective. I mocked the one layer around the whole house exterior walls that through Construction Work building an Insulation Model Home hasn’t lost a single yearly Energy Efficiency Contest for best Energy Savings for close to a decade. This is with all the other quality insulation manufacturers having to take their models apart and rebuild them yearly after attempting needed improvement processes.

All I did was place a single =R-53 Radiant Barrier Foil on every exterior wall behind either Wood Panel, Plywood, or an extra thin layer of Drywall and got my whole house to be on its way for having about 80% Energy Efficiency with 80% Energy Savings. The manufacturer also has R-100 Ceramic Insulating Paints, but both are actually designed to help any building last considerably much longer. (I’ve been studying ever insulation products for almost a decade now.)

The trick not to over look is you need two layers of =R-53 RB Foils at a minimum of ¾” air space gaps to get the =R-53 protection. This works great if you’re insulating only a single wall, but if doing the whole house, one =R-53 RB Foil per exterior wall is actually the needed two layers. They are designed for this, and it was found to work.

Best part, the Energy Conservation Specialist Manufacturer has lowered his prices by 3-4 times ever since the Energy Bills have been soaring about a decade ago. =R-53 RB Foils are now found at the lowest Insulation costs on the Internet, but for the Highest R-values. BEST ENERGY STAR PROTECTION. $0.10 Sq. Ft. or $100 per 100 Sq Ft. (R-30 High Density Fiber Glass used on exterior walls easily costs about $225 for 50 Sq. Ft., R-15 RB at $0.25 Sq. Ft.)

Have fun competing with energy bills.

http://stores.ebay.com/Energy-Conservation-Specialists
http://www.energyconservationspecialists.com
Either of these two sites will get these products to you, but at their special price reductions. (Products send to anywhere in the world.)