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Ducts should not be located in exterior wall cavities
Ducts should not be located in exterior wall cavities
Ducts should not be located in exterior wall cavities
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Form a sheet metal shield around the flue pipe
Form a sheet metal shield around the flue pipe
Form a sheet metal shield around the flue pipe
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Form sheet metal shield around pipe keeping 3-inch clearance
Form sheet metal shield around pipe keeping 3-inch clearance
Form sheet metal shield around pipe keeping 3-inch clearance
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HVAC ducts, cavities used as ducts, and combustion inlets and outlets may pass perpendicularly through exterior walls but shall not be run within exterior walls unless at least R-6 continuous insulation is provided on exterior side of the cavity
HVAC ducts, cavities used as ducts, and combustion inlets and outlets may pass perpendicularly through exterior walls but shall not be run within exterior walls unless at least R-6 continuous insulation is provided on exterior side of the cavity
HVAC ducts, cavities used as ducts, and combustion inlets and outlets may pass perpendicularly through exterior walls but shall not be run within exterior walls unless at least R-6 continuous insulation is provided on exterior side of the cavity
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If HVAC duct must be installed in an exterior wall, separate it from the exterior with at least R-6 of continuous rigid insulation
If HVAC duct must be installed in an exterior wall, separate it from the exterior with at least R-6 of continuous rigid insulation
If HVAC duct must be installed in an exterior wall, separate it from the exterior with at least R-6 of continuous rigid insulation
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If wall registers are desired, install HVAC ducts in interior wall cavities
If wall registers are desired, install HVAC ducts in interior wall cavities
If wall registers are desired, install HVAC ducts in interior wall cavities
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Inadequate amount of insulation installed with compression, misalignment, and voids
Inadequate amount of insulation installed with compression, misalignment, and voids
Inadequate amount of insulation installed with compression, misalignment, and voids
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Install supply registers in floors or ceilings to avoid routing ducts through exterior walls
Install supply registers in floors or ceilings to avoid routing ducts through exterior walls
Install supply registers in floors or ceilings to avoid routing ducts through exterior walls
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Install wood framing cross pieces in the attic rafter bays on each side of the duct chase
Install wood framing cross pieces in the attic rafter bays on each side of the duct chase
Install wood framing cross pieces in the attic rafter bays on each side of the duct chase
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No insulation installed in cavity and not air sealed
No insulation installed in cavity and not air sealed
No insulation installed in cavity and not air sealed
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Right – The termination of this kitchen exhaust duct is sealed to the wall to keep out air and water and is screened to keep out pests.
Right – The termination of this kitchen exhaust duct is sealed to the wall to keep out air and water and is screened to keep out pests.
Right – The termination of this kitchen exhaust duct is sealed to the wall to keep out air and water and is screened to keep out pests.
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The unsealed register boot is going through the side wall of the chase
The unsealed register boot is going through the side wall of the chase
The unsealed register boot is going through the side wall of the chase
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To keep chase width to a minimum, use flat sheet metal as opposed to a collar and flex duct for supplies into rooms where the chase is located
To keep chase width to a minimum, use flat sheet metal as opposed to a collar and flex duct for supplies into rooms where the chase is located
To keep chase width to a minimum, use flat sheet metal as opposed to a collar and flex duct for supplies into rooms where the chase is located
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Wrong - This is a poorly sealed chase with no solid air barriers along the sides of the chase and no caulk around the electrical wires installed through the ceiling of the chase.
Wrong - This is a poorly sealed chase with no solid air barriers along the sides of the chase and no caulk around the electrical wires installed through the ceiling of the chase.
Wrong - This is a poorly sealed chase with no solid air barriers along the sides of the chase and no caulk around the electrical wires installed through the ceiling of the chase.
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Wrong – This exhaust fan duct is wrong on several counts: it uses flex duct rather than smooth round metal duct as required by the IRC, the duct terminates inside of the wall assembly instead of outside, the opening is not large enough, and the end is crushed thus severely limiting air flow.
Wrong – This exhaust fan duct is wrong on several counts: it uses flex duct rather than smooth round metal duct as required by the IRC, the duct terminates inside of the wall assembly instead of outside, the opening is not large enough...
Wrong – This exhaust fan duct is wrong on several counts: it uses flex duct rather than smooth round metal duct as required by the IRC, the duct terminates inside of the wall assembly instead of outside, the opening is not large enough...
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Wrong: Drywall does not extend beyond chase wall framing and is unsealed in a hallway dropped ceiling chase
Wrong: Drywall does not extend beyond chase wall framing and is unsealed in a hallway dropped ceiling chase
Wrong: Drywall does not extend beyond chase wall framing and is unsealed in a hallway dropped ceiling chase
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Wrong: Drywall does not extend beyond the top plate of the interior walls. This installation has the potential for leakage at the sides where the ducts penetrate the side walls of the chase
Wrong: Drywall does not extend beyond the top plate of the interior walls. This installation has the potential for leakage at the sides where the ducts penetrate the side walls of the chase
Wrong: Drywall does not extend beyond the top plate of the interior walls. This installation has the potential for leakage at the sides where the ducts penetrate the side walls of the chase
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Wrong: Open wall cavities in the un-air-sealed return plenum connect the plenum to attic spaces
Wrong: Open wall cavities in the un-air-sealed return plenum connect the plenum to attic spaces
Wrong: Open wall cavities in the un-air-sealed return plenum connect the plenum to attic spaces
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Wrong: open wall cavity connected to this return air plenum is allowing cellulose attic insulation to be pulled into the furnace
Wrong: open wall cavity connected to this return air plenum is allowing cellulose attic insulation to be pulled into the furnace
Wrong: open wall cavity connected to this return air plenum is allowing cellulose attic insulation to be pulled into the furnace
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Wrong: The return plenum is not air sealed to separate it from the wall cavities and it should not be used for storage
Wrong: The return plenum is not air sealed to separate it from the wall cavities and it should not be used for storage
Wrong: The return plenum is not air sealed to separate it from the wall cavities and it should not be used for storage
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Wrong: This return air plenum is not lined and air sealed
Wrong: This return air plenum is not lined and air sealed
Wrong: This return air plenum is not lined and air sealed
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Wrong: This wall cavity is open to the attic allowing unconditioned, attic air to enter the HVAC system, bypassing the filter, and degrading system life and performance
Wrong: This wall cavity is open to the attic allowing unconditioned, attic air to enter the HVAC system, bypassing the filter, and degrading system life and performance
Wrong: This wall cavity is open to the attic allowing unconditioned, attic air to enter the HVAC system, bypassing the filter, and degrading system life and performance
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