6.6003.5 Garage Exhaust Fan | Standard Work Specifications for Home Energy Upgrades

6.6003.5 Garage Exhaust Fan

Topic:

Exhaust

Subtopic:

Fans

Desired Outcome:

Contaminants properly removed from house

For supporting material, see Referenced Standards and Calculation of the Infiltration Credit.

Single-Family Homes Manufactured Housing

Title	Specification(s)	Objective(s)
6.6003.5a System selection	Ventilation for garage will be exhaust only and provide a minimum installed capacity of 100 CFM CFM Cubic feet per minute of ventilation per vehicle bay and will vent directly outdoors Garage exhaust fan will be wired for continuous operation or installed with automatic controls that activate the fan whenever the garage is occupied and for at least 15 minutes after the garage has been vacated If a ducted fan (not through-the-wall) is used, measure and verify the minimum air flow and adjust as necessary	Remove contaminants from garage Reduce contaminant migration from garage to house Ensure occupant health and safety
6.6003.5b Air leakage	Air leakage between the house and garages will be prevented by sealing and weather stripping	Ensure occupant health and safety Reduce conditioned air being drawn from the house Reduce contaminant migration from garage to house
6.6003.5c Combustion safety	Pressure effects caused by fans will be assessed and corrected when found outside of combustion safety standards Exhaust fans and other exhausting systems shall be provided with makeup air or other pressure relief	Ensure safe operation of combustion appliances Ensure occupant health and safety

Title

Specification(s)

Objective(s)

6.6003.5a
System selection

Ventilation for garage will be exhaust only and provide a minimum installed capacity of 100 CFM CFM Cubic feet per minute of ventilation per vehicle bay and will vent directly outdoors

Garage exhaust fan will be wired for continuous operation or installed with automatic controls that activate the fan whenever the garage is occupied and for at least 15 minutes after the garage has been vacated

If a ducted fan (not through-the-wall) is used, measure and verify the minimum air flow and adjust as necessary

Remove contaminants from garage

Reduce contaminant migration from garage to house

Ensure occupant health and safety

6.6003.5b
Air leakage

Air leakage between the house and garages will be prevented by sealing and weather stripping

Ensure occupant health and safety

Reduce conditioned air being drawn from the house

Reduce contaminant migration from garage to house

6.6003.5c
Combustion safety

Pressure effects caused by fans will be assessed and corrected when found outside of combustion safety standards

Exhaust fans and other exhausting systems shall be provided with makeup air or other pressure relief

Ensure safe operation of combustion appliances

Ensure occupant health and safety

Title	Specification(s)	Objective(s)
6.6003.5a System selection	Ventilation for garage will be exhaust only and provide a minimum installed capacity of 100 CFM CFM Cubic feet per minute of ventilation per vehicle bay and will vent directly outdoors Garage exhaust fan will be wired for continuous operation or installed with automatic controls that activate the fan whenever the garage is occupied and for at least 15 minutes after the garage has been vacated If a ducted fan (not through-the-wall) is used, measure and verify the minimum air flow and adjust as necessary	Remove contaminants from garage Reduce contaminant migration from garage to house Ensure occupant health and safety
6.6003.5b Air leakage	Air leakage between the house and garages will be prevented by sealing and weatherstripping	Ensure occupant health and safety Reduce conditioned air being drawn from the house Reduce contaminant migration from garage to house
6.6003.5c Combustion safety	Pressure effects caused by fans will be assessed and corrected when found outside of combustion safety standards Exhaust fans and other exhausting systems shall be provided with makeup air or other pressure relief	Ensure safe operation of combustion appliances Ensure occupant health and safety

Title

Specification(s)

Objective(s)

6.6003.5a
System selection

Ventilation for garage will be exhaust only and provide a minimum installed capacity of 100 CFM CFM Cubic feet per minute of ventilation per vehicle bay and will vent directly outdoors

If a ducted fan (not through-the-wall) is used, measure and verify the minimum air flow and adjust as necessary

Remove contaminants from garage

Reduce contaminant migration from garage to house

Ensure occupant health and safety

6.6003.5b
Air leakage

Air leakage between the house and garages will be prevented by sealing and weatherstripping

Ensure occupant health and safety

Reduce conditioned air being drawn from the house

Reduce contaminant migration from garage to house

6.6003.5c
Combustion safety

Pressure effects caused by fans will be assessed and corrected when found outside of combustion safety standards

Exhaust fans and other exhausting systems shall be provided with makeup air or other pressure relief

Ensure safe operation of combustion appliances

Ensure occupant health and safety