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This multistory stairwell has an automatic damper that is integrated with the engineered smoke control system.

This multistory stairwell has an automatic damper that is integrated with the engineered smoke control system.
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This night ventilation cooling system is timer-controlled and ducted to the home's HVAC ducts to bring in filtered fresh air at night.

This night ventilation cooling system is timer-controlled and ducted to the home's HVAC ducts to bring in filtered fresh air at night.
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This outdoor air intake grille provides a safe and accessible location for measuring whole-house ventilation air flow

This outdoor air intake grille provides a safe and accessible location for measuring whole-house ventilation air flow
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This room has several passive and low-energy cooling features including a ceiling fan, fully operable French doors, window shading, an outdoor water feature, and light-colored hard-scaping.

This room has several passive and low-energy cooling features including a ceiling fan, fully operable French doors, window shading, an outdoor water feature, and light-colored hard-scaping.
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This solar powered attic fan runs when the sun is shining and does not draw any power from the home’s electrical system

This solar powered attic fan runs when the sun is shining and does not draw any power from the home’s electrical system
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This traditional whole-house fan uses uninsulated gravity dampers.

This traditional whole-house fan uses uninsulated gravity dampers.
Presentation:

Three’s A Crowd: Energy Efficiency, Humidity and Ventilation in Humid Climate Zones

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To measure air flow, a hole was made in this flex duct; a more accurate measurement could be taken if the duct material were rigid metal, not flex duct

To measure air flow, a hole was made in this flex duct; a more accurate measurement could be taken if the duct material were rigid metal, not flex duct
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Trees and hedges can be used to funnel or deflect prominent winds

Trees and hedges can be used to funnel or deflect prominent winds
Presentation:

Variable Capacity Comfort Systems and Smart Ventilation Systems in High-Performance Homes

Variable Capacity Comfort Systems and Smart Ventilation Systems in High-Performance Homes
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Ventilation air comes directly from outdoors, not from adjacent dwelling units, garages, crawlspaces, or attics

Ventilation air comes directly from outdoors, not from adjacent dwelling units, garages, crawlspaces, or attics
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Ventilation air inlet is too close to exhaust outlet

Ventilation air inlet is too close to exhaust outlet
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Ventilation air inlet is too close to exhaust outlet

Ventilation air inlet is too close to exhaust outlet
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Ventilation air inlets ≥ 2 ft. above grade or roof deck in Climate Zones 1-3 or ≥ 4 ft. above grade or roof deck in Climate Zones 4-8 and not obstructed

Ventilation air inlets ≥ 2 ft. above grade or roof deck in Climate Zones 1-3 or ≥ 4 ft. above grade or roof deck in Climate Zones 4-8 and not obstructed
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Ventilation air inlets located ≥10 ft. of stretched-string distance from known contamination sources such as stack, vent, exhaust hood, or vehicle exhaust

Ventilation air inlets located ≥10 ft. of stretched-string distance from known contamination sources such as stack, vent, exhaust hood, or vehicle exhaust
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Ventilation air inlets provided with rodent / insect screen with ≤ 0.5 inch mesh

Ventilation air inlets provided with rodent / insect screen with ≤ 0.5 inch mesh
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Ventilation duct is compressed because supporting strap is too small

Ventilation duct is compressed because supporting strap is too small
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Ventilation in this dwelling unit is provided by an Energy Recovery Ventilator; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake; conditioned air is provided by an air handler

Ventilation in this dwelling unit is provided by an Energy Recovery Ventilator; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake; conditioned air is provided by an air handler
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Ventilation in this unit is provided by an Energy Recovery Ventilator; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake; conditioned air is provided by an air handler and dehumidification is provided separately

Ventilation in this unit is provided by an Energy Recovery Ventilator; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake; conditioned air is provided by an air handler and dehumidification is provided separately
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Ventilation inlet does not terminate high enough above the roof deck

Ventilation inlet does not terminate high enough above the roof deck
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Ventilation inlet is appropriately located above grade

Ventilation inlet is appropriately located above grade
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Ventilation inlet is greater than 10 ft. from known contamination source

Ventilation inlet is greater than 10 ft. from known contamination source
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Ventilation inlet is greater than 10 ft. from known contamination source

Ventilation inlet is greater than 10 ft. from known contamination source
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Ventilation inlet is not near any exhaust outlets/contamination sources and is at least 2 ft. above the roof deck

Ventilation inlet is not near any exhaust outlets/contamination sources and is at least 2 ft. above the roof deck