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A site-built rafter roof with a raised top plate allows for more insulation underneath
After all holes through the ceiling are air sealed and the baffles have been installed, the insulation can be installed
Air barrier is continuous across several components of the lower section of wall
Air seal and insulate double-walls that are half-height or full-height walls used as architectural features in homes.
Air seal and insulate the rim and band joists of walls separating an attached garage from the home’s conditioned space.
Air seal the floor above a garage when there is living space above the garage and make sure floor insulation is in full contact with the underside of the subfloor.
Air seal the floor above an unconditioned basement or crawlspace and make sure floor insulation is in full contact with the underside of the subfloor.
Air seal the top, bottom, and sides of a cantilevered floor cavity and ensure that insulation is in full contact with all sides without voids.
Attic knee walls are insulated with rigid foam and sealed with spray foam to help form a continuous draft barrier around attic rooms.
Baffles provide an air space over the insulation to guide ventilation air from the soffit vents up along the underside of the roof deck
Batt insulation is not an effective air barrier
Cap nail securing a weather-resistant barrier
Draft stopping and air barrier at tub enclosure − plan view
Draft stopping and air barrier at tub enclosure − side view
Drainage plane installation sequence
Drywall is installed as an air barrier above the central hallway duct chase prior to installing the trunk ducts.
Drywall is installed before framing in dropped soffits to provide an air barrier above these duct chases.
Furred-out siding
House wrap is sealed at all seams and overlaps flashing to serve as a continuous drainage plane over the exterior walls.
Identify what materials will constitute the continuous air barrier around the building envelope.
Infrared image of a rim joist
Inspection of taped joint
Install a continuous air barrier below or above ceiling insulation and install wind baffles.
Install a rigid air barrier to separate the porch attic from the conditioned space.
nstall an air barrier behind fireplaces installed on exterior walls
Install an air barrier behind showers and tubs installed on exterior walls.
Install an air barrier behind staircases installed on exterior walls.
Install an air barrier on the exterior of attic knee wall insulation and to block open floor joist cavities under attic knee walls
Install an air barrier over dropped ceilings or soffits
Install insulation and an air barrier around skylight shafts.
Install rigid insulation and finish material below the framing and cavity insulation of a building overhang
Installation details for weather-resistant barriers
Installing a garage exhaust fan is one important step in keeping auto exhaust and other pollutants out of the home
Insulation not aligned with subfloor or joists
Key elements of a wall system clad with insulated vinyl siding
Material Properties of Rigid foam Insulation
Moisture-resistant rigid foam insulation was installed to provide a continuous air and thermal barrier behind the tub-shower insert.
Penetrations through subfloor air sealed
Raised heel, energy trusses extend further past the wall and are deeper at the wall allowing room for full insulation coverage over the top plate of the exterior walls
Right –  Rigid air barrier is installed behind fireplace
Right –  Rigid air barrier is installed behind fireplace
Right – Air barrier and penetrations sealed between porch attic and conditioned space
Right – Air barrier installed behind shower stall
Right – Air barrier installed behind the tub
Right – Air barrier installed under staircase (picture taken from house looking into attached garage)
Right – Air barrier is air sealed
Right – Air barrier is installed between double wall framing
Right – Air barrier is installed prior to porch attic framing
Right – Air barrier is installed prior to porch attic framing
Right – Air barrier is present and installed between the floor system and unconditioned space
Right – Air barrier is present between garage and conditioned space
Right – Air barrier is present between garage and floor system
Right – Air barrier is present between the dropped ceiling/soffit and the attic
Right – Air barrier is present between the dropped ceiling/soffit and the attic
Right – Air barrier sealed
Right – All holes, gaps, and seams of the rigid air barrier are air sealed
Right – Backing air sealed prior to insulation
Right – Band is properly insulated and sealed
Right – Cantilever has been properly insulated, air sealed, and cavity has been blocked
Right – Continuous air barrier
Right – Floor above garage is a continuous air barrier
Right – Insulation installed behind fireplace prior to air barrier installation
Right – Insulation is in contact with floor above
Right – Insulation is properly installed
Right – Insulation meets RESNET Grade I prior to air barrier installation
Right – Insulation properly installed before air barrier
Right – Penetrations through band properly sealed
Right – Penetrations through the floor are air sealed
Right – Properly insulated, backed, and air sealed knee wall
Right – Rigid air barrier is installed to hold insulation in place
Right – Rigid air barrier properly sealed around skylight shaft

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