Section 5.6 Rooftop Elevators
(a) Requirement 220.127.116.11. Hoistways are not required to be enclosed above the rooftop landing.
(b) Requirement 18.104.22.168 does not apply.
(c) Requirement 22.214.171.124 does not apply.
(d) Requirement 2.1.3 does not apply.
The location and guarding of counterweights shall conform to Section 2.3.
(b) Requirement 2.4.7 does not apply if the rise is 6.1 m (20 ft) or less. When 126.96.36.199.3 is required, the top-of-car clearance shall be measured to the underside of the roof door when the bow iron or stanchion is in contact with the door.
Electrical equipment, wiring, pipes, and ducts in hoistways and machine rooms shall conform to Section 2.8 and the following:
(b) All electrical equipment in the hoistway shall be weatherproof.
(c) Electrical metallic tubing (EMT) shall not be used.
(a) The pedestrian path on a rooftop, when the door or cover is open, shall be such that it permits a minimum 1200 mm (48 in.) wide unobstructed path that is not normally accessible to vehicular traffic.
(b) Hoistways shall not be located either wholly or partially in front of any entrance to a building or openable window.
(c) The side of the door opening nearest to any building wall or other obstruction shall be 100 mm (4 in.) or less, or greater than 900 mm (36 in.), from the wall or obstruction.
(d) Horizontal openings in rooftops shall be protected by hinged metal doors or vertically lifting covers having a nonslip upper surface. Doors or covers shall be of sufficient strength to safely support a static load of not less than 14.4 kPa (300 lbf/ft2), uniformly distributed.
(e) When in the closed position, doors shall be flush with the landing sill.
(g) All openings between rooftop door panels and frames shall be provided with minimum 50 mm (2 in.) gutters to collect rainwater. The gutters shall be piped rigidly to a discharge point exterior to the hoistway and pit.
(b) The doors shall be opened by the ascending car, shall be self-closing as the car descends, and shall be kept in the closed position when the car is not at the top landing.
(c) Stops shall be provided to prevent the doors from opening more than 90 deg from their closed position.
(d) Means shall be provided at the meeting edge of biparting rooftop doors to collect and discharge rain water.
(e) The landing sill shall be substantially flush with the floor surface of the elevator landings.
(a) The covers shall be raised and lowered vertically by the ascending and descending car and shall not be held or fastened in the open position when the car is not at the top landing.
(b) Recesses or guides, which will securely hold the cover in place on the stanchions, shall be provided on the underside of the cover.
(c) The landing sill shall be substantially flush with the floor surface of the elevator landings.
(a) Requirements 2.12.2 and 2.12.3. Interlocks or electric contacts are not required on hinged-type swinging covers and vertical lifting covers used at the top landing in rooftops. Locks, if used, shall be the spring type and shall be automatically unlocked by the bow irons or stanchions of the car, unless the locks are the type that permit operation of the elevators to open the cover only if the locking device is in the unlocked position.
(a) Car frames of underslung rope-suspended-type elevators shall be of sufficient depth to provide the minimum vertical clearance between the car rope hitches or car sheaves and any obstruction in the hoistway vertically above them, as specified in 2.4.8, when the car floor is level with its upper landing level.
(b) The depth of the car frame and the length and spacing of guiding members shall conform to 2.15.4 and shall be such as to prevent tipping of the platform when it is at the highest upper landing level.
(c) The car platform shall be provided with metal aprons or guards on all exposed sides conforming to the following:
(1) They shall be made of metal not less than 1.5 mm (0.059 in.) thick.
(2) They shall have a straight vertical face flush with the outer edge of the platform having a depth not less than the distance between the normal upper terminal landing level and the highest upper landing level plus 75 mm (3 in.).
(3) The lower portion of the guard shall be rounded or beveled at an angle of approximately 75 deg with the horizontal.
(a) They shall be not less than 2 130 mm (84 in.) high, measured from the finished car floor, except that this height shall be permitted to be reduced by an amount necessary to permit the doors or covers to close when the car is at the landing next to the top terminal landing.
(b) They shall be designed, installed, and braced to withstand the impact when striking the doors or covers.
(c) Bow irons shall be located approximately symmetrical with respect to the center of the car platform.
(d) Stanchions shall be framed together at their upper ends and provided with spring buffers at the top.
All electrical equipment on the car shall be weather-proof.
Actuation of a landing call button when the car is at the roof level shall illuminate a visual "in-use" signal at the landing station at which the landing call was registered and sound an audible and visual alarm at the roof level. The audible alarm shall have a sound pressure rating not less than 80 dBA nor greater than 90 dBA at 3.05 m (10 ft).
Operation to the roof level shall be in accordance with 188.8.131.52.1.
(a) The operation of elevators between openings in the roof, which are protected by hinged doors or vertically lifting covers, and the first landing below the roof level shall conform to one of the following:
(1) key-operated continuous-pressure-type up-and-down switches
(2) continuous-pressure-type up-and-down operating buttons on the free end of a detachable, flexible cord not more than 1525 mm (60 in.) in length
(b) Key-operated switches shall be the continuous-pressure spring-return type and shall be operated by a cylinder-type lock having not less than a five-pin or five-disk combination with the key removable only when the switch is in the "OFF" position. The key shall be Group 2 Security (see Section 8.1).
(c) Key-operated switches and plug receptacles for flexible cords shall be weatherproof and shall be installed above the roof level, located within 1525 mm (60 in.) horizontally from one side of the opening in such a manner that the opening is within clear sight of the operator.
(d) It shall be possible to operate the car only by means of either the key switches or the continuous-pressure-type up-and-down buttons on the free end of the flexible cord specified in (a).
(e) Flexible cords and operating keys shall not be left where they are accessible to unauthorized persons for operation of the elevator.
(f) Means of two-way communication shall be provided between the car, lower terminal landing, the first landing below the roof level, and the rooftop operating station.
(g) On multiple-stop elevators, the car operating panels shall only be operational for floors below the roof level.