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Right – This kitchen exhaust duct is made of smooth rigid metal and the duct is mastic sealed at joints

Right – This kitchen exhaust duct is made of smooth rigid metal and the duct is mastic sealed at joints
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Right – This kitchen exhaust fan has a damper to prevent outside air from entering when the fan is not operating

Right – This kitchen exhaust fan has a damper to prevent outside air from entering when the fan is not operating
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Right – This plug-in sensor detects indoor air quality issues in a home, including elevated levels of humidity, VOCs, smoke, carbon dioxide, or small particulates; if detected, the sensor can switch on the nearest exhaust fan to remove the pollutants.

Right – This plug-in sensor detects indoor air quality issues in a home, including elevated levels of humidity, VOCs, smoke, carbon dioxide, or small particulates; if detected, the sensor can switch on the nearest exhaust fan to remove the pollutants.
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Right – This register is sealed for a final test and the duct test pressure is being monitored at the register

Right – This register is sealed for a final test and the duct test pressure is being monitored at the register
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Right – Transfer grilles are installed over doorways to bedrooms in a new-construction home

Right – Transfer grilles are installed over doorways to bedrooms in a new-construction home
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Right – Transfer grilles, Jump ducts, and wall grilles provide passive returns for air returning from bedrooms to the central HVAC system

Right – Transfer grilles, Jump ducts, and wall grilles provide passive returns for air returning from bedrooms to the central HVAC system
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Right- An electronic controller operates an exhaust fan, a mechanical damper on a fresh air intake, and the central heat pump’s fan, which draws in fresh air through the damper and distributes it in sync with exhaust fan operation for balanced fresh air.

Right- An electronic controller operates an exhaust fan, a mechanical damper on a fresh air intake, and the central heat pump’s fan, which draws in fresh air through the damper and distributes it in sync with exhaust fan operation for balanced fresh air.
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Right: Air seal all seams in the return air plenum before installing a new air handler

Right: Air seal all seams in the return air plenum before installing a new air handler
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Right: If there are large gaps between the edges of the supply boot and the subfloor, add screws to close the gaps. Cover the seam with mesh tape and seal over the tape with mastic.

Right: If there are large gaps between the edges of the supply boot and the subfloor, add screws to close the gaps. Cover the seam with mesh tape and seal over the tape with mastic.
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Right: This vent was correctly flashed providing proper waterproofing detailing for this siding penetration.

Right: This vent was correctly flashed providing proper waterproofing detailing for this siding penetration.
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Right: Use mastic to air seal the return air plenum and to seal around refrigerant lines coming from the slab in the floor of the return

Right: Use mastic to air seal the return air plenum and to seal around refrigerant lines coming from the slab in the floor of the return
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Rigid foam insulation in vent areas

Rigid foam insulation in vent areas
Presentation:

Score with Indoor Air Quality Webinar

Score with Indoor Air Quality Webinar
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See the printing on the cardboard frame of the air filter for the filter dimensions and the arrow indicating airflow direction; the arrow should point into the duct.

See the printing on the cardboard frame of the air filter for the filter dimensions and the arrow indicating airflow direction; the arrow should point into the duct.
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Shade trees planted on the east or west sides of a house are one of the most effective measures that can be taken to reduce heat gains

Shade trees planted on the east or west sides of a house are one of the most effective measures that can be taken to reduce heat gains
Presentation:

Smart, Connected Indoor Air Quality with Broan Overture

CAD File:

Soffit retrofit to add structural support for vent covering.

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Soffit retrofit to add structural support for vent covering.
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Some whole-house fans are equipped with an automatic drop-down cover to provide an air seal at the ceiling level when the fan is not in use

Some whole-house fans are equipped with an automatic drop-down cover to provide an air seal at the ceiling level when the fan is not in use
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Some whole-house fans use an automatic insulated cover achieve high R-values when the fan is not in use

Some whole-house fans use an automatic insulated cover achieve high R-values when the fan is not in use
Case Study:

Struever Bros. Eccles & Rouse: Mixed, Humid Climate Region 40+% Energy Savings

Presentation:

Stump the Building Chump – Joe Lstiburek

Stump the Building Chump – Joe Lstiburek
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Supply-only ventilation with a fresh air intake ducted to the return side of a horizontal air handler unit located in the attic

Supply-only ventilation with a fresh air intake ducted to the return side of a horizontal air handler unit located in the attic
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Supply-only ventilation with a fresh air intake ducted to the return side of a vertical air handler unit located in the house

Supply-only ventilation with a fresh air intake ducted to the return side of a vertical air handler unit located in the house
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Target Ventilation, Formula 4.1a from ASHRAE 62.2-2010

Target Ventilation, Formula 4.1a from ASHRAE 62.2-2010