Required windows shall open directly onto a street or public alley or a yard or court located on the same lot as the building.
Exception: Required windows may open into a roofed porch where the porch:
1. Abuts a street, yard, or court;
2. Has a ceiling height of not less than seven feet; and
3. Has the longer side at least sixty-five (65) percent open and unobstructed.
A required window in a service room may open into a vent shaft which is open and unobstructed to the sky and not less than four feet in least dimension. No vent shaft shall extend through more than two stories.
For the purpose of determining light and ventilation requirements, any room may be considered as a portion of an adjoining room when one-half of the area of the common wall is open and unobstructed and provides an opening of not less than one-tenth of the floor area of the interior room or twenty-five (25) square feet, whichever is greater. (Prior code § 49.05.512)