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Is foil faced insulation as effective as a Radiant Barrier?

April 26, 2017barrier effective faced foil insulation radiant

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Is foil faced insulation as effective as a Radiant Barrier?

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No. The foil on fiberglass is in direct contact with the attic floor. Aluminum foil becomes more conductive when in contact with a solid surface. The air space facing the foil surface is of primary importance.