3530 COLBY AVE COCOON HOUSE 2020-01-13

INTERIOR ENVIRONMENT 1204.3-1207.2 1204.3 Artificial light.Artificial light shall be provided that 1205.3.3 Court drainage.The bottom of every court shall is adequate to provide an average illumination of 10 foot- be properly graded and drained to a public sewer or other candles(107 lux)over the area of the room at a height of 30 approved disposal system complying with the inches(762 mm)above the floor level. International Plumbing Code. 1204.4 Stairway illumination. Stairways within dwelling SECTION 1206 units shall be provided with a minimum illumination level of SOUND TRANSMISSION 10 foot-candles (107 lux) measured at every tread nosing. _ Exterior stairways serving a dwelling unit shall have an illu- 1206.1 Scope.This section shall apply to common interior mination level on tread runs of I foot-candle(11 lux).Stairs walls,partitions and floor/ceiling assemblies between adja- in other occupancies shall be governed by Chapter 10. cent dwelling units or between dwelling units and adjacent public areas such as halls,corridors,stairs or service areas. 1204.4.1 Controls. The control for activation of the required stairway lighting shall be in accordance with the 1206.2 Air-borne sound.Walls,partitions and floor/ceiling ICC Electrical Code. assemblies separating dwelling units from each other or from public or service areas shall have a sound transmission class 1204.5 Emergency egress lighting. The means of egress (STC)of not less than 50(45 if field tested) for air-borne shall be illuminated in accordance with Section 1003.2.11. noise when tested in accordance with ASTM E 90. This requirement shall not apply to dwelling unit entrance doors: SECTION 1205 however, such doors shall be tight fitting to the frame and YARDS OR COURTS sill. 1205.1 General.This section shall apply to yards and courts 1206.3 Structure-borne sound. Floor/ceiling assemblies adjacent to exterior openings that provide natural light or between dwelling units or between a dwelling unit and a pub- ventilation.Such yards and courts shall be on the same prop- lit or service area within the structure shall have an impact erty as the building. insulation class (IIC) rating of not less than 50(45 if field tested)when tested in accordance with ASTM E 492. 1205.2 Yards.Yards shall not be less than 3 feet(914 mm)in width for one-story and two-story buildings. For buildings SECTION 1207 more than two stories in height,the minimum width of the INTERIOR SPACE DIMENSIONS yard shall be increased at the rate of 1 foot(305 mm)for each additional story.For buildings exceeding 14 stories in height, 1207.1 Minimum room widths.Habitable spaces,other than the required width of the yard shall be computed on the basis a kitchen,shall not be less than 7 feet(2134 mm)in any plan of 14 stories. dimension. Kitchens shall have a clear passageway of not less than 3 feet(914 mm)between counter fronts and appli- 1205.3 Courts.Courts shall not be less than 3 feet(914 mm) in width.Courts having windows opening on opposite sides antes or counter fronts and walls. shall not be less than 6 feet(1829 mm)in width.Courts shall 1207.2 Minimum ceiling heights.Occupiable spaces,habit- not be less than 10 feet(3048 mm)in length unless bounded able spaces and corridors shall have a ceiling height of not on one end by a public way or yard.For buildings more than less than 7 feet 6 inches(2286 mm).Bathrooms,toilet moms. two stories in height,the court shall be increased I foot(305 kitchens,storage rooms and laundry rooms shall be permit- mm)in width and 2 feet(310 mm)in length for each addi- ted to have a ceiling height of not less than 7 feet(2134 mm). tional story.For buildings exceeding 14 stories in height,the required dimensions shall be computed on the basis of 14 sto- -Exceptions: ries. 1. In one-and two-family dwellings,beams or girders 1205.3.1 Court access.Access shall be provided to the spaced not less than 4 feet(1219 mm)on center and bottom of courts for cleaning purposes. projecting not more than 6 inches(152 mm)below the required ceiling height. 1205.3.2 Air intake. Courts more than two stories in 2. Basement rooms in one-and two-family dwellings height shall be provided with a horizontal air intake at the having a ceiling height of not less than 6 feet 8 inch- bottom not less than 10 square feet(0.93 m2)in area and es (2033 mm) with not less than 6 feet 4 inches leading to the exterior of the building unless abutting a (1932 mm) of clear height under beams, girders, yard or public way. ducts and similar obstructions. 2000 INTERNATIONAL BUILDING CODE® 261