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DIVISION 12 – INTERIOR ENVIRONMENT
13-172-010 Scope.
13-172-020 Buildings on Same Lot.
13-172-030 Definitions.
13-172-060 Light and Ventilation Required.
13-172-070 Natural Light.
13-172-080 Artificial Light.
13-172-090 Natural Ventilation.
13-172-100 Mechanical Ventilation.
13-172-110 Ventilation of Special Spaces.
13-172-130 Courts and Yards.
13-172-140 Obstruction of Courts and Yards.
Where more than one building is hereafter placed on a lot, or where a building is placed on the same lot with existing buildings and the several buildings are treated as a single structure for the purposes of this chapter, adequate sources of light and ventilation shall be provided for all occupied buildings.
(Added Coun. J. 4-29-98, p. 66679, § 1)
The following words and terms shall, for the purposes of this chapter, have the meanings shown herein:
“Attic” means the space between the ceiling beams of the top story and the roof rafters.
“Court” means an open, uncovered and unoccupied space on the same lot as a building where such space is enclosed wholly or partly by buildings, walls or other enclosing devices (see Section 13-172-130).
“Court, Inner” means any court enclosed wholly by buildings, walls or other enclosing devices.
“Court, Outer” means a court extending to and opening upon a street, public alley or other approved open space that is not less than 15 feet (4,572 mm) wide, or upon a required yard.
“Court height” means the vertical distance from the lowest level of the court to the mean height of the top of the enclosing walls.
“Court width” means, as applied to an inner court, the least horizontal dimension; and, as applied to an outer court, means the shortest horizontal dimension measured in a direction substantially parallel with the principal open end of such court.
“Habitable space or room” has the meaning ascribed to the term “habitable room” in Section 13-4-010.
“Irregular or gore-shaped court and yard” means either a triangular (gore-shaped) or irregular air space surrounded by parts of a building on 2 or more sides and occurring either at grade or at an upper story.
“Multi-purpose room” means a room within a family dwelling unit which may be used as a study, office, multimedia room or other function normally associated with family dwelling occupancy, and which room is in excess of the essential family needs for living, dining and sleeping outlined in Section 13-172-060(c). Multi-purpose rooms shall not be used as bedrooms.
“Occupiable space” means a room or enclosed space other than in a family dwelling unit, designed for human occupancy in which individuals congregate for amusement, educational or similar purposes, or in which occupants are engaged at labor; and which is equipped with means of egress and light and ventilation facilities meeting the building provisions of this Code.
“Vapor retarder” means a material having a perm rating of 1.0 or less, such as foil, plastic sheeting or insulation facing, installed to retard the passage of water vapor or moisture through the exterior envelope.
“Ventilation” means the natural or mechanical process of supplying conditioned or unconditioned air to, or removing such air from, any space.
“Yard” means an unoccupied open space other than a court (see Sections 13-172-130 and 13-172-140).
(Added Coun. J. 4-29-98, p. 66679, § 1; Amend Coun. J. 9-14-16, p. 31143, § 3; Amend Coun. J. 11-9-16, p. 36266, § 26*)
* Editor's note – The amendment of Coun. J. 11-9-16, p. 36266, § 26 to this section did not take into account the amendment of Coun. J. 9-14-16, p. 31143, § 3, which renders the later amendment unnecessary.
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