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Guide describing design and installation of compact duct systems for central heating and cooling systems.

Guide describing how to properly test the air barrier between the garage and house, and how to ensure the air barrier is tight enough to prevent garage air from entering the home.

Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.

Guide describing how to conduct duct leakage tests per RESNET protocols.