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Guide describing how to insulate a vented attic in an existing home using blown insulation added to the attic floor.

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

Guide describing methods for insulating an unvented crawlspace or conditioned basement with rigid foam on the interior side of the walls to provide an insulated space for HVAC equipment.

Guide describing how to apply spray foam insulation to ceilings in existing homes.

Guide describing how to upgrade a crawlspace floor in an existing home by adding insulation.

Guide describing how to re-roof an existing home with a sloped and add insulation above the roof deck.

Guide describing how to add spray foam insulation to the underside of the existing roof deck as part of the conversion of a vented attic to an unvented, insulated attic.