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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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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
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Cut the duct to the length needed

Cut the duct to the length needed
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Cut two pieces of sheet metal to fit around the flue

Cut two pieces of sheet metal to fit around the flue
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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
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Diagram of buried ducts

Diagram of buried ducts
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Different types of ICF blocks

Different types of ICF blocks
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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

Case Study:

DOE ZERH HIA 2015 Case Study: Greenhill Contracting, Green Acres #20, #26, #28, New Paltz, NY

Case Study:

DOE ZERH HIA 2015 Case Study: TC Legend Homes, Bellingham Power House, Bellingham, WA

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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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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.
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Drywall is installed, hiding the duct work

Drywall is installed, hiding the duct work
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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
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Duct boots and other ceiling penetrations are air-sealed using spray foam

Duct boots and other ceiling penetrations are air-sealed using spray foam
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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
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Duct insulated with a minimum of R-8 insulation

Duct insulated with a minimum of R-8 insulation
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Duct insulation is installed over boot

Duct insulation is installed over boot
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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