General
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DescriptionGuide describing compartmentalization in multifamily buildings - the separation of dwelling units from each other and from common areas in terms of air flow.
Walls
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DescriptionGuide describing how to air-seal common walls between dwelling units in multifamily housing. -
DescriptionGuide describing ways to seal drywall to the top plate of an exterior wall to air-seal the wall cavity. -
DescriptionGuide describing how to install continuous air barriers in exterior walls.
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Guide:
Walls Behind Fireplaces
DescriptionThis guide describes how to install a rigid air barrier to wall framing behind fireplaces. -
DescriptionThis guide describes how to install a rigid air barrier to walls behind showers and tubs. -
Guide:
Staircase Walls
DescriptionGuide describing how to create a fully aligned air barrier behind a staircase. -
DescriptionGuide describing how to correctly air-seal a wall with missing top plates or open wall cavities.
Ceilings/Attics
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DescriptionGuide 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. -
Guide:
Attic Knee Walls
DescriptionGuide describing how to insulate and air-seal attic knee walls and floor joist cavities under knee walls. -
DescriptionGuide describing how to insulate and air-seal dropped ceilings and soffits to prevent air leakage. -
DescriptionGuide describing how to air-seal attic access panels, doors, and stairs to provide a continuous air barrier at the ceiling.
Floors and Foundations
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Guide:
Air Sealing Sill Plates
DescriptionGuide describing how to air-seal sill plates in single-family homes and multifamily buildings. -
DescriptionGuide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and HVAC equipment. -
DescriptionGuide describing how to air-seal and insulate the floor above an unconditioned basement or crawl space. -
Guide:
Floor Above Garage
DescriptionGuide 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.
Garages
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Guide:
Air Sealing Attached Garage
DescriptionGuide describing ways to air-seal an attached garage in new and existing homes. -
DescriptionGuide describing the air-sealing of rim joists on walls connecting homes and attached garages. -
DescriptionGuide 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.
Penetrations
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DescriptionGuide describing how to air-seal around plumbing and piping penetrations through walls, ceilings, and floors. -
DescriptionGuide describing how to air-seal duct and flue shafts. -
DescriptionGuide describing how to air-seal electrical wiring throughout a home. -
DescriptionGuide describing how to air-seal bathroom and kitchen exhaust fans. -
DescriptionGuide describing how to air seal around duct shafts and flues installed through ceilings, walls, and flooring in new and existing homes. -
DescriptionGuide describing how to air-seal around recessed light fixtures below unconditioned space.
Doors and Windows
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DescriptionGuide describing how to air-seal the rough openings around doors and windows. -
DescriptionGuide describing how to air-seal doors that are next to unconditioned spaces.
Testing
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Guide:
Enclosure Leakage Test
DescriptionGuide describing how to use a blower door test to determine building envelope air leakage. -
DescriptionGuide 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.