National Kitchen & Bath Association - Kitchen & Bathroom Planning Guidelines with Access Standards
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26: Ventilation

Recommended:
Plan a mechanical exhaust system, vented to the outside, for each enclosed area.

Code Requirement:

  • Minimum ventilation for the bathroom is to be a window of at least 3 sq. ft. of which 50% is operable, or a mechanical ventilation system of at least 50 cubic feet per minute (cfm) ducted to the outside. (IRC R 303.3, IRC M 1506.3)


Access Standard

Recommended:
Ventilation controls should be placed 15” – 48” above the floor, operable with minimal effort, easy to read, and with minimal noise pollution.

Code Reference:

  • See Access Standard 25 for operable controls.
  • See Access Standard 22 for reach range for controls.

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