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Video:

Support at Intervals for Flex Ducts (1)

Image:

Tape over the seam connecting the flex duct to the trunk duct; in this case two 3-inch-wide pieces of tape were put together then laid over the seam.

Tape over the seam connecting the flex duct to the trunk duct; in this case two 3-inch-wide pieces of tape were put together then laid over the seam.
Image:

Tape the flex duct core to the take-off collar using UL-181 foil mastic tape.

Tape the flex duct core to the take-off collar using UL-181 foil mastic tape.
Case Study:

Technology Solutions Case Study: Buried and Encapsulated Ducts, Jacksonville, Florida

Case Study:

Technology Solutions Case Study: Duct Sealing Using Injected Spray Sealant

Case Study:

Technology Solutions Case Study: High-Performance Ducts in Hot-Dry Climates

Case Study:

Technology Solutions Case Study: Properly Sized and Located Return Air Inlets

Case Study:

Technology Solutions Case Study: Raised Ceiling Interior Duct System

Case Study:

Technology Solutions Case Study: Sealed Air-Return Plenum Retrofit

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The AC unit has a drip pan and automatic shutoff in case the condensate drain gets clogged.

The AC unit has a drip pan and automatic shutoff in case the condensate drain gets clogged.
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The attic duct chase insulated and sealed to the attic floor with spray foam

The attic duct chase insulated and sealed to the attic floor with spray foam
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The attic is sealed and insulated along the underside of the roof deck with 5.5 inches of polyurethane spray foam, providing conditioned space for the HVAC system.

The attic is sealed and insulated along the underside of the roof deck with 5.5 inches of polyurethane spray foam, providing conditioned space for the HVAC system.
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The attic kneewall and the open floor cavities under kneewall are both sealed and insulated in one step with spray foam insulation

The attic kneewall and the open floor cavities under kneewall are both sealed and insulated in one step with spray foam insulation
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The batt insulation shown here was properly installed to fill the ceiling cavities.

The batt insulation shown here was properly installed to fill the ceiling cavities.
Image:

The builder installed this OSB under the roof rafters and air sealed the seams with tape then added a dropped drywall ceiling to provide a service cavity for ducts and wiring, while minimizing holes into the attic.

The builder installed this OSB under the roof rafters and air sealed the seams with tape then added a dropped drywall ceiling to provide a service cavity for ducts and wiring, while minimizing holes into the attic.
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The ceiling drywall is sealed to the top plates with caulk.

The ceiling drywall is sealed to the top plates with caulk.
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The chase is laid out on the plans (grey highlighted areas) to aid sub-contractors to execute the design

The chase is laid out on the plans (grey highlighted areas) to aid sub-contractors to execute the design
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The dark purple areas and long streaks in this IR camera image show extreme cold spots along the top of the walls, indicating a lack of both air sealing and insulation above the top plates of these walls.

The dark purple areas and long streaks in this IR camera image show extreme cold spots along the top of the walls, indicating a lack of both air sealing and insulation above the top plates of these walls.
Image:

The dark spots on the ceiling in this infrared camera image likely indicate missing or displaced attic insulation.

The dark spots on the ceiling in this infrared camera image likely indicate missing or displaced attic insulation.
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The dark streaks seen in this infrared camera image of a return vent in a ceiling indicate cooler air is leaking in around the vent.

The dark streaks seen in this infrared camera image of a return vent in a ceiling indicate cooler air is leaking in around the vent.
Image:

The drywall above the chase extends beyond adjoining top plates for a continuous air barrier

The drywall above the chase extends beyond adjoining top plates for a continuous air barrier
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The drywall above the dropped ceiling duct chase extends beyond adjoining top plates for a continuous air barrier

The drywall above the dropped ceiling duct chase extends beyond adjoining top plates for a continuous air barrier
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The duct for this exhaust fan is properly routed through the roof and the duct is insulated

The duct for this exhaust fan is properly routed through the roof and the duct is insulated
Image:

The duct sealing spray injection system application tunnel inflates as the injection system operates

The duct sealing spray injection system application tunnel inflates as the injection system operates