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FIRE-RESISTANCE-RATED CONSTRUCTION 707.13.4-708.4 <br /> 707.13.4 Termination room. Refuse and laundry chutes 1. Walls separating dwelling units. <br /> shall discharge into an enclosed room completely separat- 2. Walls separating guestrooms in occupancies in Group <br /> ed from the remainder of building by construction that has R-1. <br /> a fire resistance rating of not less than 1 hour and openings <br /> into the termination room shall be protected by opening 3. Walls separating tenant spaces in covered mall build- <br /> protectives having a fire-protection rating of not less than Ings' <br /> 3/4 hour and shall be self-closing or automatic-closing 4. Corridor walls. <br /> upon the detection of smoke. Refuse chutes shall not ter- <br /> minate in an incinerator room. Refuse and laundry rooms 708.2 Materials.The walls shall be of materials permitted by <br /> that are not provided with chutes need only comply with the building type of construction. <br /> Table 302.1.1. <br /> 708.3 Fire-resistance rating. The fire-resistance rating of <br /> 707.13.5 Incinerator room.Incinerator rooms shall com- the walls shall be I hour. <br /> ply with Table 302.1.1. <br /> 707.13.6 Automatic fire sprinkler system.An approved Exceptions: <br /> automatic fire sprinkler system shall be installed in accor 1. Corridor walls as permitted by Table 1004.3.2.1. <br /> dance with Section 903.2.12.2. 2. Dwelling unit and guestroom separations in build- <br /> ings of Types IIB, IIIB and VB construction shall <br /> 707.14 Elevator and dumbwaiter shafts.Elevator hoistway have fire-resistance ratings of not less than 1/2 hour <br /> and dumbwaiter enclosures shall be constructed in accor- in buildings equipped throughout with an automatic <br /> dance with Section 707.4 and Chapter 30. sprinkler system in accordance with Section <br /> �`\ 707.14.1 Elevator lobby. Elevators opening into a fire- 903.3.1.1. <br /> resistance-rated corridor as required by Section 1004.3.2.1 <br /> shall be provided with an elevator lobby at each floor con- 708.4 Continuity.Fire partitions shall extend from the top of <br /> the floor assembly below to the underside of the floor or roof <br /> taining such a corridor. The lobby shall completely sepa- slab or deck above or to the fire-resistance-rated floor/ceiling <br /> rate the elevators from the corridor by fire barriers and the or roof/ceiling assembly above, and shall be securely <br /> required opening protection.Elevator lobbies shall have at attached thereto. If the partitions are not continuous to the <br /> least one means of egress complying with Chapter 10 and deck,and where constructed of combustible construction,the <br /> other provisions within this code. space between the ceiling and the deck above shall be fire- <br /> Exceptions: blocked or draftstopped in accordance with Sections 716.2.1 <br /> 1. In office buildings,separations are not required from and 716.3.1 at the partition line.The supporting construction <br /> a street floor elevator lobby provided the entire shall be protected to afford the required fire-resistance rating <br /> street floor is equipped with an automatic sprinkler of the wall supported,except for tenant and guestroom sepa- <br /> system in accordance with Section 903.3.1.1. ration walls and exit access corridor walls in buildings of <br /> Types IIB, IIIB, and VB construction. <br /> 4)2. Elevators not required to be located in a shaft in <br /> accordance with Section 707.2. Exceptions: <br /> 7 3. Where additional doors are provided in accor- 1. The wall need not be extended into the crawl space <br /> dance with Section 3002.6. below where the floor above the crawl space has a <br /> 7 At 4. In other than Groups I-2 and I-3, and buildings minimum 1-hour fire-resistance rating. <br /> more than four stories above the lowest level of 2. Where the room-side fire-resistance-rated mem- <br /> _____; fire department vehicle access, lobby separation brane of the corridor is carried through to the under- <br /> is not required where the building,including the side of a fire-resistance-rated floor or roof above, <br /> lobby and corridors leading to the lobby, is pro- the ceiling of the corridor shall be permitted to be <br /> tected by an automatic sprinkler system installed protected by the use of ceiling materials as required <br /> throughout in accordance with Section 903.3.1.1 for a 1-hour fire-resistance-rated floor or roof sys- <br /> or 903.3.1.2. tern. <br /> SECTION 708 Jok, go4C. 3. Where the corridor ceiling is constructed as required <br /> FIRE PARTITIONS' _ mot- 3 L /0 for the corridor walls,the walls shall be permitted to <br /> terminate at the upper membrane of such ceiling <br /> 708.1 General. Wall assemblies installed as required by assembly. <br /> Sections 310.3, 402.7.2 and 1004.3.2.1 shall comply with 4. The fire partition separating tenant spaces in a mall, <br /> this section.These include: complying with Section 402.7.2,are not required to <br /> 2000 INTERNATIONAL BUILDING CODE® 103 <br />