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// CODE SNIPPET

1203.4.1.3 Bathrooms and Toilet Rooms in R and I-1 Occupancies

NYC Building Code 2014 > 12 Interior Environment > 1203 Ventilation > 1203.4 Natural Ventilation > 1203.4.1 Ventilation Area Required > 1203.4.1.3 Bathrooms and Toilet Rooms in R and I-1 Occupancies
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Bathrooms or toilet rooms in R or I-1 occupancies shall be provided with natural ventilation in accordance with Section 1203.4.1.3, unless provided with exhaust ventilation in accordance with the New York City Mechanical Code. Openings providing required natural ventilation shall be windows.

Exception: Openable skylights may be substituted for windows provided that the bathroom or toilet room is on the top story.

1203.4.1.3.1 Minimum Opening

The minimum openable area to the outdoors shall be 5 percent of the floor area of the space being ventilated. Every window or skylight providing required natural ventilation shall be at least 3 square feet (0.28 m2) providing a minimum of 11/2 square feet (0.14 m2) of openable area.

1203.4.1.3.2 Adjoining Spaces

Natural ventilation for bathrooms and toilet rooms may not be through openings from another room or space.

Exception: A bathroom or toilet room may open onto a partially enclosed balcony or space above a setback conforming with Exception 2 of Section 1203.4.1.2.2.

1203.4.1.3.3 Basements and Cellars

Where openings provide natural ventilation to bathrooms or toilet rooms located in basements or cellars, such opening shall also comply with the applicable provisions of Sections 27-2081 through 27-2087 of the New York City Housing Maintenance Code and Sections 26(8) and 34 of the New York State Multiple Dwelling Law.

Related Code Sections


1203.4.1.3 Interior Environment, Bathrooms and Toilet Rooms in R and I-1 Occupancies
Bathrooms or toilet rooms in R or I-1 occupancies shall be provided with natural ventilation in accordance with Section 1203.4.1.3, unless provided ...
NYC Building Code 2008 > 12 Interior Environment > 1203 Ventilation > 1203.4 Natural Ventilation > 1203.4.1 Ventilation Area Required > 1203.4.1.3 Bathrooms and Toilet Rooms in R and I-1 Occupancies
1203.4.1.3 Interior Environment, Bathrooms and Toilet Rooms in R and I-1 Occupancies
Bathrooms or toilet rooms in R or I-1 occupancies shall be provided with natural ventilation in accordance with Section 1203.4.1.3, unless provided ...
NYC Building Code 2014 > 12 Interior Environment > 1203 Ventilation > 1203.4 Natural Ventilation > 1203.4.1 Ventilation Area Required > 1203.4.1.3 Bathrooms and Toilet Rooms in R and I-1 Occupancies
1203.4.1.3.3 Interior Environment, Basements and Cellars
Where openings provide natural ventilation to bathrooms or toilet rooms located in basements or cellars, such opening shall also comply ...
NYC Building Code 2014 > 12 Interior Environment > 1203 Ventilation > 1203.4 Natural Ventilation > 1203.4.1 Ventilation Area Required > 1203.4.1.3 Bathrooms and Toilet Rooms in R and I-1 Occupancies > 1203.4.1.3.3 Basements and Cellars
1203.5.1.3 Interior Environment, Bathrooms and Toilet Rooms in Group R and I-1 Occupancies
Bathrooms and toilet rooms in Group R or I-1 occupancies shall be provided with natural ventilation in accordance with Section 1203.5.1.3, unless ...
NYC Building Code 2022 > 12 Interior Environment > 1203 Ventilation > 1203.5 Natural Ventilation > 1203.5.1 Ventilation Area Required > 1203.5.1.3 Bathrooms and Toilet Rooms in Group R and I-1 Occupancies
1203.5.1.3.2 Interior Environment, Adjoining Spaces
Natural ventilation for bathrooms and toilet rooms may not be through openings from another room or space. Exception: A bathroom or toilet room ...
NYC Building Code 2022 > 12 Interior Environment > 1203 Ventilation > 1203.5 Natural Ventilation > 1203.5.1 Ventilation Area Required > 1203.5.1.3 Bathrooms and Toilet Rooms in Group R and I-1 Occupancies > 1203.5.1.3.2 Adjoining Spaces
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