5610 WEST DR 2017-07-28 - Laserfiche WebLink

1 BUILDING PLANNING illumination of 6 footcandles (65 lux) over the area 3. Clothes dryer exhaust ducts shall be terminated in I of the room at a height of 30 inches (762 mm) above accordance with Section M1502.3. the floor level. R303.5.2 Exhaust openings. Exhaust air shall not be 3. Use of sunroom and patio covers, as defined in Sec- directed onto walkways. tion R202,shall be permitted for natural ventilation if R303.6 Outside opening protection.Air exhaust and intake in excess of 40 percent of the exterior sunroom walls openings that terminate outdoors shall be protected with cor- are open,or are enclosed only by insect screening. rosion-resistant screens, louvers or grilles having an opening R303.2 Adjoining rooms. For the purpose of determining size of not less than 1/4 inch (6 mm) and a maximum opening light and ventilation requirements, any room shall be consid- size of 1/2 inch(13 mm),in any dimension. Openings shall be ered to be a portion of an adjoining room where not less than protected against local weather conditions. Outdoor air one-half of the area of the common wall is open and unob- exhaust and intake openings shall meet the provisions for structed and provides an opening of not less than one-tenth of exterior wall opening protectives in accordance with this the floor area of the interior room and not less than 25 square code. feet(2.3 m2). R303.7 Interior stairway illumination. Interior stairways Exception:Openings required for light or ventilation shall shall be provided with an artificial light source to illuminate be permitted to open into a sunroom with thermal isolation the landings and treads. The light source shall be capable of or a patio cover, provided that there is an openable area illuminating treads and landings to levels of not less than 1 between the adjoining room and the sunroom or patio foot-candle (11 lux) as measured at the center of treads and cover of not less than one-tenth of the floor area of the landings. There shall be a wall switch at each floor level to interior room and not less than 20 square feet (2 m2). The control the light source where the stairway has six or more minimum openable area to the outdoors shall be based risers. upon the total floor area being ventilated. Exception: A switch is not required where remote,central R303.3 Bathrooms. Bathrooms, water closet compartments or automatic control of lighting is provided. and other similar rooms shall be provided with aggregate gl Zz- R303.8 Exterior stairway illumination. Exterior stairways ing area in windows of not less than 3 square feet (0.3 m ), shall be provided with an artificial light source located at the one-half of which must be openable. top landing of the stairway. Exterior stairways providing Exception: The glazed areas shall not be required where access to a basement from the outdoor grade level shall be artificial light and a local exhaust system are provided. provided with an artificial light source located at the bottom The minimum local exhaust rates shall be determined in landing of the stairway. accordance with Section M1507. Exhaust air from the R303.9 Required glazed openings. Required glazed open- space shall be exhausted directly to the outdoors. ings shall open directly onto a street or public alley, or a yard R303.4 Mechanical ventilation. Where the air infiltration or court located on the same lot as the building. rate of a dwelling unit is 5 air changes per hour or less where Exceptions: tested with a blower door at a pressure of 0.2 inch w.c (50 Pa) in accordance with Section N1102.4.1.2, the dwelling unit 1. Required glazed openings that face into a roofed shall be provided with whole-house mechanical ventilation in porch where the porch abuts a street,yard or court accordance with Section M1507.3. and the longer side of the porch is not less than 65 R303.5 Opening location.Outdoor intake and exhaust open- percent unobstructed and the ceiling height is not ings shall be located in accordance with Sections R303.5.1 less than 7 feet(2134 mm). ' and R303.5.2. 2. Eave projections shall not be considered as obstruct- R303.5.1 Intake openings. Mechanical and gravity out- ing the clear open space of a yard or court. door air intake openings shall be located not less than 10 3. Required glazed openings that face into the area feet (3048 mm) from any hazardous or noxious contami- under a deck, balcony, bay or floor cantilever where nant, such as vents, chimneys, plumbing vents, streets, a clear vertical space not less than 36 inches (914 alleys,parking lots and loading docks. mm) in height is provided. For the purpose of this section, the exhaust from dwell- R303.9.1 Sunroom additions. Required glazed openings ing unit toilet rooms, bathrooms and kitchens shall not be shall be permitted to open into sunroom additions or patio considered as hazardous or noxious. covers that abut a street,yard or court if in excess of 40 percent of the exterior sunroom walls are open, or are Exceptions: enclosed only by insect screening, and the ceiling height 1. The 10-foot(3048 mm) separation is not required of the sunroom is not less than 7 feet(2134 mm). where the intake opening is located 3 feet (914 R303.10 Required heating. Where the winter design tem- mm) or greater below the contaminant source. perature in Table R301.2(1) is below 60°F (16°C), every 2. Vents and chimneys serving fuel-burning appli- dwelling unit shall be provided with heating facilities capable ances shall be terminated in accordance with the of maintaining a room temperature of not less than 68°F applicable provisions of Chapters 18 and 24. (20°C) at a point 3 feet (914 mm) above the floor and 2 feet 56 2015 INTERNATIONAL RESIDENTIAL CODE®