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32 <br />2 <br /> <br />N <br />. <br /> <br />H <br />A <br />R <br />B <br />O <br />R <br /> <br /> <br />B <br />L <br />V <br />D <br />. <br />SA <br />N <br />T <br />A <br /> <br />A <br />N <br />A <br />, <br /> <br />C <br />A <br /> <br />9 <br />2 <br />7 <br />0 <br />3 <br />SHEET NUMBER <br />2 0 2 4 0 1 0 <br />SHEET TITLE <br />PROJECT NUMBER <br />REVISIONS <br />NO.DATE NO.DATE <br />HANNOUCHE ARCHITECTS <br />EXPRESSLY RESERVES ITS COMMON LAW COPYRIGHT <br />AND OTHER PROPERTY RIGHTS INHERENT IN <br />THESE PLANS. ALL DRAWINGS, ELECTRONIC FILES, <br />FIELD NOTES AND ASSOCIATED DOCUMENTS <br />ARE INSTRUMENTS OF SERVICE AND ARE THE <br />PROPERTY OF HANNOUCHE ARCHITECTS. <br />ALL INFORMATION CONTAINED IN THESE DRAWINGS, <br />ELECTRONIC FILES, FIELD NOTES AND ASSOCIATED <br />DOCUMENTS IS PROJECT SPECIFIC AND SHALL NOT <br />BE REPRODUCED, DISCLOSED, CHANGED, COPIED, <br />OR USED OTHERWISE IN ANY FORM OR MANNER <br />WHATSOEVER, WITHOUT FIRST OBTAINING THE <br />EXPRESSED WRITTEN PERMISSION AND CONSENT <br />OF HANNOUCHE ARCHITECTS. <br />HANNOUCHE ARCHITECT c 2021 <br />HANNOUCHE <br />ARCHITECTS <br />949.261.2070 <br />SAMIR HANNOUCHE, ARCHITECT <br />20250 SW ACACIA ST. #145 NEWPORT BEACH, CA 92660 <br />PR <br />O <br />G <br />R <br />E <br />S <br />S <br /> <br />S <br />E <br />T <br /> <br />N <br />O <br />T <br /> <br />F <br />O <br />R <br /> <br />B <br />I <br />D <br /> <br />O <br />R <br /> <br />C <br />O <br />N <br />S <br />T <br />R <br />U <br />C <br />T <br />I <br />O <br />N <br />June 17, 2024 <br />A0.21 <br />DWELLING ADA <br />NOTES DETAILS <br />SCALE: N/A <br />SECTION 1115A EXTERIOR STAIRWAYS <br />1115A.1 GENERAL. EXTERIOR STAIRWAYS SERVING BUILDINGS ON A SITE CONTAINING COVERED MULTIFAMILY <br />DWELLING UNITS SHALL COMPLY WITH THIS SECTION. <br />1115A.2 OPEN RISERS. OPEN RISERS ARE NOT PERMITTED ON EXTERIOR STAIRWAYS. <br />EXCEPTIONS: <br />1. AN OPENING OF NOT MORE THAN INCH (12.7 MM) MAY BE PERMITTED BETWEEN THE BASE OF THE <br />RISER AND THE TREAD. <br />2. RISERS CONSTRUCTED OF GRATING CONTAINING OPENINGS OF NOT MORE THAN 1/2 INCH (12.7 MM) <br />MAY BE PERMITTED. <br />1115A.3 TREADS. ALL TREAD SURFACES SHALL BE SLIP RESISTANT. THREADS SHALL HAVE SMOOTH, ROUNDED OR <br />CHAMFERED EXPOSED EDGES; AND NO ABRUPT EDGES AT THE NOSING (LOWER FRONT EDGE). <br />1115A.4 NOSING. NOSING SHALL NOT PROJECT MORE THAN 1114 INCHES ( 31.8 MM) PAST THE FACE OF THE RISER <br />BELOW. RISERS SHALL BE SLOPED OR THE UNDERSIDE OF THE NOSING SHALL HAVE AN ANGLE NOT MORE <br />THAN 30 DEGREES (0.52 RAD) FROM THE VERTICAL. (SEE FIGURE 11A-6A). <br />1115A.5 STRIPING FOR THE VISUALLY IMPAIRED. EXTERIOR STAIRS SERVING BUILDINGS ON A SITE CONTAINING <br />MULTIFAMILY DWELLING UNITS SHALL HAVE THE UPPER APPROACH AND ALL TREADS MARKED BY A STRIPE <br />PROVIDING CLEAR VISUAL CONTRAST. THE STRIPE SHALL BE A MINIMUM OF2 INCHES (50.8 TNM) WIDE TO A <br />MAXIMUM OF4 INCHES (101.6 MM) WIDE PLACED PARALLEL TO, AND NOT MORE THAN 1 INCH (25.4 MM)FROM, <br />THE NOSE OF THE STEP OR UPPER APPROACH. THE STRIPE SHALL EXTEND THE FULL WIDTH OF THE STEP OR <br />UPPER APPROACH AND SHALL BE OF MATERIAL THAT IS AT LEAST AS SLIP RESISTANT AS THE OTHER TREADS <br />OF THE STAIR. A PAINTED STRIPE SHALL BE ACCEPTABLE. <br />1115A.6 EXTERIOR STAIRWAY HANDRAILS. <br />1115A.6.1 WHERE REQUIRED. STAIRWAYS SHALL HAVE HANDRAILS ON EACH SIDE. INTERMEDIATE HANDRAILS SHALL BE <br />LOCATED EQUIDISTANT FROM THE SIDES OF THE STAIRWAY AND COMPLY WITH SECTION 1012.9. EXCEPTION: <br />STAIRWAYS SERVING AN INDIVIDUAL DWELLING UNIT MAY HAVE ONE HANDRAIL, EXCEPT THAT STAIRWAYS <br />OPEN ON ONE OR BOTH SIDES SHALL HAVE HANDRAILS ON THE OPEN SIDE OR SIDES. <br />1115A.6.2 HANDRAIL CONFIGURATION. <br />1115A.6.2.1 HANDRAIL HEIGHTS. THE TOP OF HANDRAILS SHALL BE 34 TO 38 INCHES (864 TO 965 MM) ABOVE THE NOSING <br />OF THE TREADS. <br />1115A.6.2.2 HANDRAIL ENDS. ENDS SHALL BE RETURNED OR SHALL TERMINATE IN NEWEL POSTS OR SAFETY TERMINALS. <br />1115A.6.2.3 HANDRAIL EXTENSION. HANDRAILS SHALL EXTEND A MINIMUM OF 12 INCHES ( 305 MM) BEYOND THE TOP <br />NOSING AND 12 INCHES (305 MM), PLUS THE TREAD WIDTH, BEYOND THE BOTTOM NOSING. WHERE THE <br />EXTENSION CREATES A HAZARD, THE TERMINATION OF THE EXTENSION SHALL BE ROUNDED OR RETURNED <br />SMOOTHLY TO FLOOR, WALL OR POST. WHERE THE STAIRS ARE CONTINUOUS FROM LANDING TO LANDING, <br />THE INNER RAIL SHALL BE CONTINUOUS AND NEED NOT EXTEND OUT INTO THE LANDING. (SEE FIGURES <br />/JA-6A AND 11A-6E). <br />15SEC. 1115A EXTERIOR STAIRWAYS - <br />30° MAX <br />1 1/4" <br />MAX <br />1 1/4" <br />MAX <br />FIGURE 11A-6A <br />WARNING STRIPING AND HANDRAIL EXTENSIONS <br />34 <br />" <br /> <br />T <br />O <br /> <br />3 <br />8 <br />" <br />1'-0" MIN <br />12" plus tread width min <br />34 <br />" <br /> <br />T <br />O <br /> <br />3 <br />8 <br />" <br />tread <br />width <br />2" min - 4" max * <br />1" max <br />*NOTE: at exterior stairs all treads are <br />to have warning stripes per Section <br />1115A.5 <br />34 <br />" <br /> <br />T <br />O <br /> <br />3 <br />8 <br />" <br />STAIRS <br />clarification dimension <br />line location <br />(shown dashed) <br />TREAD WIDTH TREAD WIDTH <br />1115A.6.2.4 HANDRAIL PROJECTIONS. HANDRAILS PROJECTING FROM A WALL SHALL HAVE A SPACE OF 1-1/2 INCHES (38.1 <br />MM) BETWEEN THE WALL AND THE HANDRAIL. HANDRAILS MAY BE LOCATED IN A RECESS IF THE RECESS IS <br />A MAXIMUM OF 3 INCHES (76.2 MM) DEEP AND EXTENDS AT LEAST 18 INCHES ( 457 MM) ABOVE THE TOP OF <br />THE RAIL. ANY WALL OR OTHER SURFACE ADJACENT TO THE HANDRAIL SHALL BE FREE OF SHARP OR <br />ABRASIVE ELEMENTS. (SEE FIGURE 11A6B). <br />1115A.6.2.5 HANDRAIL GRIPS. THE HANDGRIP PORTION OF HANDRAILS SHALL NOT BE LESS THAN 1114 INCHES (31.75 MM) <br />NOR MORE THAN 2 INCHES ( 50.8 MM) IN CROSS-SECTIONAL DIMENSION OR THE SHAPE SHALL PROVIDE AN <br />EQUIVALENT GRIPPING SURFACE. THE HANDGRIP PORTION OF HANDRAILS SHALL HAVE A SMOOTH SURFACE <br />WITH NO SHARP CORNERS. EDGES SHALL HAVE A MINIMUM RADIUS OF 118 INCH (3.17 MM). HANDRAILS <br />SHALL NOT ROTATE WITHIN THEIR FITTINGS. (SEE FIGURE 11A-6B). NOTE: FOR PUBLIC USE AREAS, PUBLIC <br />ACCOMMODATIONS, AND PUBLIC HOUSING, SEE CHAPTER 11 B, FOR PROVISIONS OF THE DIVISION OF THE <br />STATE ARCHITECT-ACCESS COMPLIANCE(DSA-AC). <br />FIGURE 11A-6B <br />HANDRAILS(c)(d) <br />(a)(b) <br />1 1/4" MIN <br />2" MAX <br />1 1/2" <br />1 1/4" <br />MIN <br />1 1/2" <br />1 <br />1 <br />/ <br />2 <br />" <br />MA <br />X <br />1 <br />1 <br />/ <br />2 <br />" <br />MI <br />N <br />to <br /> <br />s <br />u <br />i <br />t <br />de <br />s <br />i <br />g <br />n <br />1 1/2" <br />1 <br />1 <br />/ <br />2 <br />" <br />MI <br />N <br />18 <br />" <br /> <br />M <br />I <br />N <br />3" MAX <br />1 1/4" MIN <br />2" MAX <br />1 1/2" <br />nominal diameter <br />1/8" min radius <br />(typ) <br />FIGURE 11A-6E <br />STAIR HANDRAILS <br />NOTE: inner handrail at landings of stairs that double back or <br />immediately turn shall be continuous and shall not extend into <br />the landing or path of travel <br />X : extension of handrail shall be equal to the <br />tread width plus 12" <br />intermediate <br />landingX X <br />1'-0" <br />1' <br />- <br />0 <br />" <br />X1' <br />- <br />0 <br />" <br />X <br />1' <br />- <br />0 <br />" <br />floor landing <br />do <br />w <br />n <br />do <br />w <br />n <br />do <br />w <br />n <br />do <br />w <br />n <br />down <br />do <br />w <br />n <br />do <br />w <br />n <br />do <br />w <br />n <br />do <br />w <br />n <br />do <br />w <br />n <br />inner handrail <br />and guardrail1 1/2" <br />inner handrail <br />and guardrail <br />guardrail required <br />guardrail may <br />be required <br />intermediate <br />landing <br />guardrail <br />required <br />X <br />1' <br />- <br />0 <br />" <br />1' <br />- <br />0 <br />" <br />X <br />1' <br />- <br />0 <br />" <br />1' <br />- <br />0 <br />" <br />Xintermediate <br />landing <br />1 1/2" <br />1 1/2"1 1/2" <br />floor landing <br />floor landing <br />SECTION 1116A HAZARDS ON ACCESSIBLE ROUTES <br />1116A.1 WARNING CURBS. ABRUPT CHANGES IN LEVEL EXCEEDING 4 INCHES (101.6 MM) IN VERTICAL DIMENSION, <br />SUCH AS CHANGES IN LEVEL AT PLANTERS OR FOUNTAINS LOCATED IN OR ADJACENT TO WALKS, <br />SIDEWALKS OR OTHER PEDESTRIAN WAYS SHALL BE IDENTIFIED BY CURBS OR OTHER APPROVED BARRIERS <br />PROJECTING AT LEAST 6 INCHES ( 152.4 MM) IN HEIGHT ABOVE THE WALK OR SIDEWALK SURFACE TO WARN <br />THE BLIND OF A POTENTIAL DROP-OFF. <br />EXCEPTIONS: <br />1. BETWEEN A WALK OR SIDEWALK AND AN ADJACENT STREET OR DRIVEWAY. <br />2. WHEN A GUARDRAIL OR HANDRAIL IS PROVIDED WITH EDGE PROTECTION IN ACCORDANCE WITH <br />SECTION 1010.10.1. <br />1116A.2 HEADROOM CLEARANCE. WALKS, PEDESTRIAN WAYS, AND OTHER CIRCULATION SPACES, WHICH ARE PART <br />OF THE REQUIRED EGRESS SYSTEM, SHALL HAVE A MINIMUM CLEAR HEADROOM AS REQUIRED IN SECTION <br />1003.2. OTHER WALKS, PEDESTRIAN WAYS, AND CIRCULATION SPACES SHALL HAVE A MINIMUM CLEAR <br />HEADROOM OF 80 INCHES (2032 MM). IF THE VERTICAL CLEARANCE OF AN AREA ADJOINING AN ACCESSIBLE <br />ROUTE IS REDUCED TO LESS THAN 80 INCHES (2032 MM) NOMINAL DIMENSION, A GUARDRAIL OR OTHER <br />BARRIER HAVING ITS LEADING EDGE AT OR BELOW 27 INCHES (686 MM) ABOVE THE FINISHED FLOOR SHALL <br />BE PROVIDED. <br />EXCEPTION: DOORWAYS AND ARCHWAYS LESS THAN 24 INCHES (610 MM) IN DEPTH MAY HAVE A <br />MINIMUM CLEAR HEADROOM OF 80 INCHES (2032 MM) NOMINAL. (SEE SECTION 1126A.) <br />1116A.3 OVERHANGING OBSTRUCTIONS. ANY OBSTRUCTION THAT OVERHANGS A PEDESTRIAN WAY SHALL BE A <br />MINIMUM OF 80 INCHES (2032 MM) ABOVE THE WALKING SURFACE AS MEASURED FROM THE BOTTOM OF THE <br />OBSTRUCTION. (SEE FIGURE 11 A -1 B.) WHERE A GUY SUPPORT IS USED PARALLEL TO A PATH OF TRAVEL, <br />INCLUDING, BUT NOT LIMITED TO, SIDEWALKS, A GUY BRACE, SIDEWALK GUY OR SIMILAR DEVICE SHALL BE <br />USED TO PREVENT AN OVERHANGING OBSTRUCTION (SEE SECTION 1116A.2 FOR REQUIRED HEADROOM <br />CLEARANCE). <br />1116A.4 FREE-STANDING SIGNS. WHEREVER SIGNS MOUNTED ON POSTS OR PYLONS PROTRUDE FROM THE POST OR <br />PYLONS AND THE BOTTOM EDGE OF THE SIGN IS LESS THAN 80 INCHES (2032 MM) ABOVE THE FINISHED <br />FLOOR OR GROUND LEVEL, THE EDGES OF SUCH SIGNS SHALL BE ROUNDED OR EASED AND THE CORNERS <br />SHALL HAVE A MINIMUM RADIUS OF 0.125 INCHES (SEE SECTION 1116A.2 FOR REQUIRED HEADROOM <br />CLEARANCE). <br />16SEC. 1116A HAZARDS ON ACCESSIBLE ROUTES - <br />FIGURE 11A-1B <br />HEADROOM CLEARANCE AND OVERHANGING <br />PROJECTION <br />EGRESS HEADROOM CLEARANCE <br />2' <br />- <br />3 <br />" <br /> <br />M <br />A <br />X <br />6' <br />- <br />8 <br />" <br /> <br />M <br />I <br />N <br />ov <br />e <br />r <br />h <br />a <br />n <br />g <br />i <br />n <br />g <br /> <br />o <br />b <br />s <br />t <br />r <br />u <br />c <br />t <br />i <br />o <br />n <br />6' <br />- <br />8 <br />" <br /> <br />M <br />I <br />N <br /> <br />C <br />L <br />E <br />A <br />R <br />guard or barrier <br />rail <br />7' <br />- <br />0 <br />" <br /> <br />M <br />I <br />N <br />he <br />a <br />d <br />r <br />o <br />o <br />m <br /> <br />c <br />l <br />e <br />a <br />r <br />a <br />n <br />c <br />e <br />SEC. 1118A EGRESS AND AREAS OF REFUGE - <br />SECTION 1118A EGRESS AND AREAS OF REFUGE <br />1118A.1 GENERAL. INCLUDING BUT NOT LIMITED TO THE REQUIREMENTS CONTAINED IN THIS CHAPTER FOR <br />ACCESSIBLE ROUTES, SIGNAGE AND EMERGENCY WARNING SYSTEMS IN BUILDINGS OR PORTIONS OF <br />BUILDINGS REQUIRED TO BE ACCESSIBLE SHALL BE PROVIDED WITH ACCESSIBLE MEANS OF EGRESS AS <br />REQUIRED BY CBC CHAPTER 10. (SEE SECTION 1007.)