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Jay writes from Mesa, Arizona: “How important is putting faced insulation in exterior walls?

April 26, 2017Arizona exterior faced insulation Jay MESA putting walls writes

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Jay writes from Mesa, Arizona: “How important is putting faced insulation in exterior walls?

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When a vapor barrier is required it is very important because the Kraft facing is the vapor barrier. Without the barrier, water vapor will penetrate into the structure. Vapor barriers are required by building code in most places so it is also a code violation not to use it.