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Video:

Conducting a Residential Duct Leakage Test: Why set the Duct Fan to Depressurize not Pressurize the Home

Image:

Connect the plastic application tunnel from the injection equipment to the supply plenum.

Connect the plastic application tunnel from the injection equipment to the supply plenum.
Image:

Connect the plastic application tunnel to the injection equipment

Connect the plastic application tunnel to the injection equipment
Image:

Connection in place but not sealed

Connection in place but not sealed
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
Image:

Consumer-grade sensors can be used to monitor and address indoor air quality (IAQ) concerns in the home.

Consumer-grade sensors can be used to monitor and address indoor air quality (IAQ) concerns in the home.
Image:

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
Presentation:

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

Image:

Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections

Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections
Image:

Cut the duct to the length needed

Cut the duct to the length needed
Image:

Cut two pieces of sheet metal to fit around the flue

Cut two pieces of sheet metal to fit around the flue
Image:

Cut-away view showing unsealed gaps around a heating duct that goes through a wall

Cut-away view showing unsealed gaps around a heating duct that goes through a wall
Presentation:

Design Options for Locating Ducts within Conditioned Space

Design Options for Locating Ducts within Conditioned Space
Presentation:

Designing for Health in the Home The Importance of IAQ

Image:

Diagram of buried ducts

Diagram of buried ducts
Image:

Disconnect the duct from the clothes dryer, using a screwdriver to loosen the hose clamp

Disconnect the duct from the clothes dryer, using a screwdriver to loosen the hose clamp
Case Study:

DOE ZERH HIA 2014 Case Study: Southeast Volusia Habitat for Humanity, Edgewater, FL

Image:

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
Image:

Door is not undercut therefore not contributing to pressure balancing

Door is not undercut therefore not contributing to pressure balancing
Image:

Drywall is installed before framing in dropped soffits to provide an air barrier above these duct chases.

Drywall is installed before framing in dropped soffits to provide an air barrier above these duct chases.
Image:

Drywall is installed, hiding the duct work

Drywall is installed, hiding the duct work
Image:

Duct boot is air sealed to ceiling by covering the seam with fiberglass mesh tape and mastic

Duct boot is air sealed to ceiling by covering the seam with fiberglass mesh tape and mastic
Image:

Duct boots and other ceiling penetrations are air-sealed using spray foam

Duct boots and other ceiling penetrations are air-sealed using spray foam
Image:

Duct boots sealed to floor, wall, or ceiling using caulk, foam, mastic tape, or mastic paste

Duct boots sealed to floor, wall, or ceiling using caulk, foam, mastic tape, or mastic paste