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Image:

Consider using a metal duct elbow instead of flex duct at boot connections to prevent compressions

Consider using a metal duct elbow instead of flex duct at boot connections to prevent compressions
Video:

Continuous Rigid Insulation Sheathing/Siding (1)

Video:

Continuous Rigid Insulation Sheathing/Siding (2)

Image:

Continuous supply and exhaust fans rated ≤ 1 sone by manufacturer

Continuous supply and exhaust fans rated ≤ 1 sone by manufacturer
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Continuously-operating ventilation & exhaust fans include readily accessible override controls

Continuously-operating ventilation & exhaust fans include readily accessible override controls
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Contractors install gasket between the second-story top plate and the rim joist to air seal at this wall to attic transition (Source: S&A Homes).

Contractors install gasket between the second-story top plate and the rim joist to air seal at this wall to attic transition (Source: S&A Homes).
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Coordinate with other trades including framers, plumbers, and electricians to prevent needless looping of flex duct

Coordinate with other trades including framers, plumbers, and electricians to prevent needless looping of flex duct
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Cover the box with insulation

Cover the box with insulation
Presentation:

COVID-Safe Ventilation and Airflow Strategies for Homes and Other Buildings

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Cut a neat hole in the ceiling with smooth edges in which the exhaust fan housing will fit snugly

Cut a neat hole in the ceiling with smooth edges in which the exhaust fan housing will fit snugly
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Cut the duct to the length needed

Cut the duct to the length needed
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Deep energy retrofit showing insulation sprayed on exterior of walls over existing siding

Deep energy retrofit showing insulation sprayed on exterior of walls over existing siding
Presentation:

Design Options for Locating Ducts within Conditioned Space

Design Options for Locating Ducts within Conditioned Space
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Door has been undercut to allow for specified amount of air flow therefore contributing to pressure balancing

Door has been undercut to allow for specified amount of air flow therefore contributing to pressure balancing
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Door is not undercut therefore not contributing to pressure balancing

Door is not undercut therefore not contributing to pressure balancing
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Double fan window units can have multiple operational modes; most often outdoor air will be brought in at night when outdoor conditions are cooler

Double fan window units can have multiple operational modes; most often outdoor air will be brought in at night when outdoor conditions are cooler
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Drywall is installed, hiding the duct work

Drywall is installed, hiding the duct work
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Duct is compressed

Duct is compressed
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Duct is compressed

Duct is compressed
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Duct is kinked in cavity

Duct is kinked in cavity
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Duct is run straight and supported properly

Duct is run straight and supported properly
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Duct is run straight and supported properly

Duct is run straight and supported properly
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Duct to boot connection of jump duct is properly sealed with mastic

Duct to boot connection of jump duct is properly sealed with mastic
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Duct to boot connection of jump duct not fastened and sealed

Duct to boot connection of jump duct not fastened and sealed