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Right - This enclosed parking garage in a multistory multifamily building is equipped with mechanical exhaust to remove airborne contaminants from the garage.

Right - This enclosed parking garage in a multistory multifamily building is equipped with mechanical exhaust to remove airborne contaminants from the garage.
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Right - This shared enclosed parking garage is equipped with exhaust fans to remove airborne contaminants from the garage.

Right - This shared enclosed parking garage is equipped with exhaust fans to remove airborne contaminants from the garage.
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Right – A non-combustible 1/8-inch mesh screen is installed on vent openings to reduce the risk of ember intrusion.

Right – A non-combustible 1/8-inch mesh screen is installed on vent openings to reduce the risk of ember intrusion.
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Right – A separately ducted HRV supplies fresh air to most rooms in the home.

Right – A separately ducted HRV supplies fresh air to most rooms in the home.
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Right – A ventilating dehumidifier with a fresh air intake is tied into the central duct system of this mixed-humid climate home.

Right – A ventilating dehumidifier with a fresh air intake is tied into the central duct system of this mixed-humid climate home.
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Right – All electric lines should be clearly labeled on the electric panel.

Right – All electric lines should be clearly labeled on the electric panel.
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Right – An ERV provides filtered fresh air to this small home.

Right – An ERV provides filtered fresh air to this small home.
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Right – An HVAC contractor installs a 4-inch-thick MERV 13 filter at the intake grille of this return air vent to prevent dust, allergens, smoke, and viruses from entering the duct system.

Right – An HVAC contractor installs a 4-inch-thick MERV 13 filter at the intake grille of this return air vent to prevent dust, allergens, smoke, and viruses from entering the duct system.
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Right – Battens were installed above the cork insulation to provide a ventilating layer between the insulation and the roof sheathing on this “hot roof” design.

Right – Battens were installed above the cork insulation to provide a ventilating layer between the insulation and the roof sheathing on this “hot roof” design.
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Right – Flex duct is used to connect the duct tester to the largest part of the ductwork where the ducts meet the ERV Cabinet; this helps ensure uniform pressure distribution during a duct leakage test

Right – Flex duct is used to connect the duct tester to the largest part of the ductwork where the ducts meet the ERV Cabinet; this helps ensure uniform pressure distribution during a duct leakage test
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Right – In wildfire prone areas, using a flat soffit with venting on the fascia instead of an angled soffit with down-facing venting reduces the risk of catching rising embers.

Right – In wildfire prone areas, using a flat soffit with venting on the fascia instead of an angled soffit with down-facing venting reduces the risk of catching rising embers.
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Right – Open-cell spray foam is installed over closed-cell spray foam in this hybrid approach to achieve adequate attic ventilation while allowing some vapor permeability.

Right – Open-cell spray foam is installed over closed-cell spray foam in this hybrid approach to achieve adequate attic ventilation while allowing some vapor permeability.
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Right – Raised heel trusses allow room for insulation over the exterior wall top plates, while baffles direct ventilation air to flow above the insulation from the soffit vents to the ridge vents.

Right – Raised heel trusses allow room for insulation over the exterior wall top plates, while baffles direct ventilation air to flow above the insulation from the soffit vents to the ridge vents.
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Right – Ripped OSB provides furring strips for a ventilation gap behind the wood siding.

Right – Ripped OSB provides furring strips for a ventilation gap behind the wood siding.
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Right – Smart equipment for homes may include a tablet or touchpad from which the homeowner can control lighting, HVAC, window shades, security, music, and other home automation features.

Right – Smart equipment for homes may include a tablet or touchpad from which the homeowner can control lighting, HVAC, window shades, security, music, and other home automation features.
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Right – Spray foam fills the roof joist cavities of this vaulted, unvented attic.

Right – Spray foam fills the roof joist cavities of this vaulted, unvented attic.
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Right – Strips of foam are used to provide a ventilation gap behind the siding.

Right – Strips of foam are used to provide a ventilation gap behind the siding.
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Right – The builder provided adequate wall space for the solar inverter next to the home’s electric panels.

Right – The builder provided adequate wall space for the solar inverter next to the home’s electric panels.
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Right – The builder routed all vents through side walls to avoid holes in the roof.

Right – The builder routed all vents through side walls to avoid holes in the roof.
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Right – The corridor in this multistory building is pressurized with outdoor supply air.

Right – The corridor in this multistory building is pressurized with outdoor supply air.
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Right – The elevator lobby of this multistory building is pressurized with outdoor air supplied to the space through this ceiling supply register.

Right – The elevator lobby of this multistory building is pressurized with outdoor air supplied to the space through this ceiling supply register.
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Right – The HVAC unit installed in the insulated attic uses a heat pump to provide heating and cooling while also providing dehumidification and fresh air ventilation.

Right – The HVAC unit installed in the insulated attic uses a heat pump to provide heating and cooling while also providing dehumidification and fresh air ventilation.
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Right – The mechanical damper leading to interior ductwork from a Central ERV is wide open for a duct leakage test when the duct tester is attached to an exterior door of the ERV Cabinet

Right – The mechanical damper leading to interior ductwork from a Central ERV is wide open for a duct leakage test when the duct tester is attached to an exterior door of the ERV Cabinet
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Right – These duct take-offs are well sealed to the branch duct

Right – These duct take-offs are well sealed to the branch duct