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What constitutes "floor area being ventilated" in a typical multifamily unit ?

Discussion in 'Mechanical Codes' started by Ryan Schultz, Sep 10, 2019.

  1. Ryan Schultz

    Ryan Schultz Sawhorse

    Apr 2, 2012
    Likes Received:
    For the following excerpt, what constitutes "floor area being ventilated" in a typical multi-family unit?

    402.2 Ventilation Area Required
    The minimum openable area to the outdoors shall be 4 percent of the floor area being ventilated.

    Would all the rooms in the unit be considered the 'floor area being ventilated'?

    Or can certain areas like hallways/bathrooms/closets be removed from this area?

    Thanks, Ryan
  2. ADAguy

    ADAguy Sawhorse

    Sep 11, 2013
    Likes Received:
    Those rooms with windows? as in habitable rooms.

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