FAQs > Radiant Barriers > Will foil-faced fiberglass insulation do the same thing as HeatBarrier XP?
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No. The foil on the fiberglass is in direct contact with the attic floor. Aluminum foil becomes more conductive when in contact with a solid surface. Air space is extremely important for radiant barriers to work. HeatBarrier XP has a fluffy look when blown and allows optimum performance.
Last updated on October 15, 2010 by Heat Barrier XP Main
