Garage pollutant protection | U.S. Green Building Council
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LEED BD+C: Multifamily Midrise | v3 - LEED 2008

Garage pollutant protection

MEQc10 | Possible 3 points


Reduce occupant exposure to indoor pollutants originating from an adjacent garage.


Prerequisites (Mandatory Measures)

10.1 No HVAC in garage. Place all air-handling equipment and ductwork outside the fire-rated envelope of the garage.

Credits (Optional Measures)

10.2 Minimize pollutants from garage for mid-rise (2 Points). Tightly seal shared surfaces between garage and conditioned spaces, including all of the following:

  1. In conditioned spaces above the garage:
    1. seal all penetrations;
    2. seal all connecting floor and ceiling joist bays; and
  2. In conditioned spaces next to the garage:
    1. weather strip all doors;
    2. place carbon monoxide detectors in adjacent rooms that share a door with the garage;
    3. seal all penetrations; and
    4. seal all cracks at the base of walls.
  3. Include a vestibule that provides an airlock between the garage and adjacent occupiable spaces OR provide self-closing doors and deck-to-deck partitions or a hard lid ceiling.
  4. Exhaust Fan in Garage. Follow the requirements laid out in ASHRAE 62.1-2007. Exhaust the garage sufficiently to create negative pressure with respect to adjacent spaces with the doors to the room closed. The exhaust rate shall be at least 0.75 cfm/ ft2, with no air recirculation, provided continuously.


10.3 Detached garage or no garage (3 Points).

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