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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 ways to air-seal an attached garage in new and existing homes.

Guide describing how to air-seal doors that are next to unconditioned spaces.

Guide describing how to air-seal and insulate a cantilevered floor.

Guide describing how to properly construct decks and other building attachments to be resistant to ignition in the event of a wildfire.

Guide describing how to create an air barrier between the garage and the conditioned space above it to prohibit pollutants from entering a home's interior.

Guide describing garage doors that are pressure-rated to withstand wind pressures from hurricanes, high winds, and tornados.

Guide describing the air-sealing of rim joists on walls connecting homes and attached garages.

Guide describing how to insulate and air seal the floor joists over a garage when there is loving space above the garage.

Guide describing how to properly insulate garages in multifamily buildings.

Guide describing methods for insulating heated garage plenums in multifamily parking garages.

Guide describing how to construct homes and decks to manage heavy snow loads in winter weather.

Guide describing requirements and best practices for mechanical garage exhaust in multifamily buildings.

Guide describing how to install an exhaust fan in an attached garage to pull fumes out of the garage and to depressurize the garage with reference to the home.

Guide describing how to design HVAC systems to be located within the conditioned space of the home, either in a utility closet or in an attic, basement, or crawl space.

Guide describing how to slope solid surfaces outside of a home so rainwater flows away from the home.

Guide describing how to install appropriate connectors to provide a continuous load path to improve the wind resistance of attached porches, carports, and decks during high-wind events.

Guide describing how to upgrade walls that separate the garage from the house by providing a continuous air control layer on the garage side of the wall and adding rigid foam insulation.

This guide describes how to install a rigid air barrier to separate the porch attic from the conditioned space.

Garages & Building Attachments

Air Leakage Testing Garage to House Air Barrier

Air Sealing Attached Garage

Air Sealing Doors Adjacent to Unconditioned Space

Cantilevered Floor

Decks are Wildfire-Resistant

Floor Above Garage

Garage Doors are Pressure Rated

Garage Rim/Band Joist Adjoining Conditioned Space

Insulating Existing Floors over Garage

Insulating Garages in Multifamily Buildings

Insulating Heated Garage Plenums in Multifamily Buildings

Managing Snow Loads on Roofs and Decks

Mechanical Exhaust for Multifamily Garages

Mechanical Ventilation for Attached Garage

No Ducts or Air Handlers Located in Garage

Patio Slabs, Porch Slabs, Walkways, and Driveways Slope Away from House

Porches, Carports, and Deck Attachments

Rigid Foam Insulation Installed Between Existing House and Garage Walls

Walls Adjoining Porch Roof

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Garages & Building Attachments