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702.11 Locked doors: All means of egress doors shall be readily openable from the side from which egress is to be made without the need for keys, special knowledge or effort, except as provided for in Section 702.11.1 702.11.1 Locks permitted: Locks or fasteners shall not be installed on egress doors except in accordance with the following conditions: 1. In mental, penal or other institutions where security of inmates is necessary provided approved provisions are made to remove occupants in case of fire or other emergency utilizing properly trained supervisory personnel who are continuously on duty. 2. In problem security areas provided approved provisions are made for special purpose door alarms or locking devices. Manually operated edge or surface mounted bolts are prohibited. 3. Key operation is permitted from a dwelling unit provided the existing dwelling unit means of egress door contains a glass panel or is located immediately adjacent to an existing window or fixed glass panel and there is another approved means of egress door from the dwelling unit not requiring key operation from the inside. 702.12 Emergency escape: Every sleeping room located in a basement shall have at least one openable window or exterior door approved for emergency egress or rescue; or shall have access to not less than two approved independent exits. Where a window is provided for emergency egress or rescue, the window shall have the bottom of the clear opening not more than 44 inches (1118 rom) above the floor. The minimum net clear opening shall be 5 square feet (0.47 m2). The minimum net clear opening height dimension shall be 24 inches (610 rom). The minimum net clear opening width dimension shall be 20 inches (508 rom). 702.12.1 Security: Bars, grilles or screens placed over emergency escape windows shall be releasable or removable from the inside without the use of a key, tool or force greater than that which is required for normal operation ofthe window. 702.13 Emergency lighting: All buildings, rooms or spaces required by the building code to have more than one exit or exit access, shall be equipped with approved emergency means of egress lighting to assure continued illumination for a duration of not less than one (1) hour in case of a power loss. All illuminated exit signs shall be connected to an approved emergency power source. Exceptions: One-and two-family dwellings or multiple-family dwellings not exceeding three stories in height and six dwelling units per floor. (SECTION 703 ACCUMULATIONS AND STORAGE) 703.1 Accumulations: Rubbish, garbage or other materials shall not be stored or allowed 28