2930 HOYT AVE 2019-09-24 - Laserfiche WebLink

CONSTRUCTION REQUIREMENTS FOR EXISTING BUILDINGS 1104.16.6 Termination. The lowest balcony shall not be 1104.19 Exit access travel distance.Exits shall be located so i more than 18 feet(5486 mm)from the ground.Fire escape that the maximum length of exit access travel,measured from 1 stairways shall extend to the ground or be provided with the most remote point to an approved exit along the natural counterbalanced stairs reaching the ground. and unobstructed path of egress travel, does not exceed the Exception: For fire escape stairways serving 10 or distances given in Table 1104.18. fewer occupants, an approved fire escape ladder is 1104.20 Common path of egress travel.The common path allowed to serve as the termination. of egress travel shall not exceed the distances given in Table 1104.16.7 Maintenance. Fire escape stairways shall be 1104.18. kept clear and unobstructed at all times and shall be main- 1104.21 Stairway discharge identification. An interior exit tained in good working order. stairway or ramp that continues below its level of exit dis- 1104.17 Corridor construction. Corridors serving an occu- charge shall be arranged and marked to make the direction of pant load greater than 30 and the openings therein shall pro- egress to a public way readily identifiable. vide an effective barrier to resist the movement of smoke. Exception:Stairways that continue one-half story beyond 1 Transoms, louvers, doors and other openings shall be keptI their levels of exit discharge need not be provided with closed or be self-closing. In Group I 2, corridors in areas barriers where the exit discharge is obvious. housing patient sleeping or care rooms shall comply with Section 1105.4. 1104.22 Exterior stairway protection. Exterior exit stair- Exceptions: ways shall be separated from the interior of the building as required in Section 1027.6.Openings shall be limited to those 1. Corridors.in occupancies other than in Group H, necessary for egress from normally occupied spaces. that are equipped throughout with an approved auto- matic sprinkler system. Exceptions: 2. Corridors in occupancies in Group E where each 1. Separation from the interior of the building is not room utilized for instruction or assembly has not required for buildings that are two stories or less less than one-half of the required means of egress above grade where the level of exit discharge serv- doors opening directly to the exterior of the building ing such occupancies is the first story above grade. at ground level. 2. Separation from the interior of the building is not ( 3. Corridors that are in accordance with the Interna- required where the exterior stairway is served by an tional Building Code. exterior balcony that connects two remote exterior jstairways or other approved exits, with a perimeter 1104.17.1 Corridor openings.Openings in corridor walls that is not less than 50 percent open. To be consid- Buildingshall comply with the requirements of the International ered open,the opening shall be not less than 50 per- cent Code. of the height of the enclosing wall,with the top Exceptions: of the opening not less than 7 feet(2134 mm)above • 1. Where 20-minute fire door assemblies are . the top of the balcony. required, solid wood doors not less than 1.75 3. Separation from the interior of the building is not inches(44 mm)thick or insulated steel doors are required for an exterior stairway located in a build- allowed. ing or structure that is permitted to have unenclosed 2. Openings protected with fixed wire glass set in interior stairways in accordance with Section 1023. steel frames. 4. Separation from the open-ended corridors of the 3. Openings covered with 0.5-inch(12.7 mm) gyp- building is not required for exterior stairways pro- sum wallboard or 0.75-inch (19.1 mm) plywood vided that: on the room side. 4.1. The open-ended corridors comply with 4. Opening protection is not required where the Section 1020. building is equipped throughout with an approved automatic sprinkler system. 4.2. The open-ended corridors are connected on each end to an exterior exit stairway 1104.18 Dead end corridors.Where more than one exit or complying with Section 1027. exit access doorway is required, the exit access shall be arranged such that dead ends do not exceed the limits speci- 4.3. At any liaation in an open-ended corridor fled in Table 1104.18.In Group I-2,in smoke compartments containing patient sleeping rooms and treatment rooms,dead where a change of direction exceeding 45 degrees (0.79 rad) occurs, a clear opening end corridors shall be in accordance with Section 1105.5.6. of not less than 35 square feet(3 m2)or an Exception: A dead-end passageway or corridor shall not exterior stairway shall be provided.Where be limited in length where the length of the dead-end pas- clear openings are provided, they shall be sageway or corridor is less than 2.5 times the least width located so as to minimize the accumulation of the dead-end passageway or corridor. of smoke or toxic gases. 207 2015 INTERNATIONAL FIRE CODES