Radiant Barrier - False Claims About 11 R-Value By Other Products

http://www.atticfoil.com/knowledge-base/227-how-does-atticfoil-compare-to-esh...
How Does AtticFoil® compare to products like Solarguard, eShield insulation, bubble foil products, and other foil/foam/fiberglass type products.

Some products CLAIM to have an r-value of over 11 and are ONLY about 1/4" thick. What is never mentioned is that in order to get the R-11 value, the product MUST be installed INSIDE a 2 x4 wood frame and have 3/4" plywood on BOTH sides. It is the ENTIRE assembly or "system" that achieves an R-11 in a heat flow down test. This requires over 3 inches of "dead" air. The term "up to 11.6 R-value" is also used.

Radiant barrier products installed in a ventilated attic are NEVER installed in this method, therefore can not achieve an R-11 value as advertised.

In this video Ed Fritz - the owner of http://www.AtticFoil.com/ demonstrates how a total the R-11 test result is achieved. The R-11 is achieved by taking a product and incorporating it into a "system" or "assembly" using 2x4 wood framing and 3/4" plywood. The ENTIRE system is then tested for downward heat flow.

Category:

Education

Tags:

• radiant barrier
• eshield insulation
• solarguard
• solar guard Insulation
• home depot radiant barrier
• radiant barrier paint
• foil insulation
• ecofoil
• radiant
• barrier
• eshield
• efficient
• systems
• eagleshield
• attic
• insulation
• lp
• techshield
• az4t1gih2
• ventilation
• bubble
• foil
• Solar-SNAP
• utility
• shield
• paint
• atticfoil.com
• heatbloc75
• ebarrier
• diamond
• rotobrush
• fifoil
• lo
• mit
• II
• Lo/mit
• save
• money
• energy
• dust
• polarply
• p2000
• greenenergybarrier
• green energy barrier

[MsAhuman]

i was told that i should get one i had no idea how it was done glad i watched this

[atcaleb]

Thanks for the information. I learned something!