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6. Perpendicular shear wall and wall bracing. Conditions where shear <br /> walls and braced wall lines do not occur in two perpendicular directions. <br /> See Figure R301.2.2.6(_8). <br /> \\\ - - --- I <br /> BRACED WALL LINES ARE NOT <br /> \\ \\ PERPENDICULAR <br /> \\_ <br /> PLAN VIEW <br /> Figure R301.2.2.6(8) <br /> Braced Wall Lines Not Perpendicular <br /> 7. Wall bracing in stories containing masonry or concrete <br /> construction. Conditions where stories above grade plane are partially or <br /> completely braced by wood wall framing in accordance with Section R602 or <br /> cold-formed steel wall framing in accordance with Section R603 include <br /> masonry or concrete construction. Where this irregularity applies, the <br /> entire story shall be designed in accordance with [accepted engineering <br /> practice] the Building Code, Chapter 5A, Hawai`i County Code. <br /> masonry Exceptions: Fireplaces, chimneys andveneer in accordance with <br /> P p <br /> this code. <br /> (23) Subsection R303.1, "Habitable rooms," of the International Residential Code is <br /> amended to read as follows: <br /> "R303.1 Habitable rooms. [Habitable] All habitable rooms shall have an <br /> aggregate glazing area of not less than [8] 10 percent of the floor area of such <br /> rooms. Natural ventilation shall be through windows, [skylight.,,] doors, louvers <br /> or other approved openings to the outdoor air. Such openings shall be provided <br /> with ready access or shall otherwise be readily controllable by the building <br /> occupants. [The] Unless required otherwise by the Energy Conservation Code, <br /> Chapter 5E, Hawai`i County Code, the minimum openable area to the outdoors <br /> shall be [not le:; than 4] 5 percent of the floor area being ventilated. <br /> Exceptions: <br /> 1. The glazed areas need not be openable where the opening is not required by <br /> section R310 and a whole-house mechanical ventilation system is installed in <br /> accordance with Section M1505. <br /> 2. The glazed areas need not be installed in rooms where Exception 1 above is <br /> satisfied and artificial light is provided that is capable of producing an <br /> average illumination of 6 footcandles (65 lux) over the area of the room at a <br /> height of 30 inches (762mm) above the floor level. <br /> 22 <br />