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Guide describing how to insulate and air-seal dropped ceilings and soffits to prevent air leakage.

Guide describing how to increase insulation in existing homes by installing batt insulation on the ceiling plane of a vented attic.

Guide describing wind washing and how to prevent it.

Guide describing how to air-seal and insulate a ceiling where the insulation is installed on top of the ceiling (on the attic floor) in a vented attic.