§ 18-255. Tables.  


Latest version.
  • The following standards shall be applicable as provided in this division:

    TABLE A. WALL AND OPENING PROTECTION OF OCCUPANCIES BASED ON LOCATION ON PROPERTY

    Group Division Automatic Fire Protection Required Fire Resistance of Exterior Walls Openings in Exterior Walls
    A 1
    2
    Yes 2 hours less than 10'
    1 hour elsewhere
    Not permitted less than 5'
    Protected 5' to 10'
    3 Yes 2 hours less than 5'
    1 hour 5' to 10'
    Not permitted less than 5'
    Protected 5' to 10'
    No 2 hours less than 20'
    1 hour elsewhere
    Not permitted less than 5'
    Protected 5' to 20'
    4, 5 Yes 1 hour less than 10' Protected less than 20'
    No 2 hours less than 20'
    1 hour elsewhere
    Protected less than 20'
    E Yes 2 hours less than 5'
    1 hour 5' to 10'
    Not permitted less than 5'
    Protected 5' to 10'
    No 2 hours less than 20'
    1 hour elsewhere
    Not permitted less than 5'
    Protected less than 20'
    I 4 No 2 hours less than 20'
    1 hour elsewhere
    Not permitted less than 3'
    Protected 3' to 20'
    2 Yes 2 hours less than 5'
    1 hour elsewhere
    Not permitted less than 5'
    Protected 5' to 20'
    No 2 hours less than 5'
    1 hour elsewhere
    Not permitted less than 5'
    Protected 5' to 20'
    1 Yes 1 hour Not permitted less than 3'
    Protected 3' to 10'
    3 Yes Not permitted Not permitted
    No Not permitted Not permitted
    H 1—5 Not permitted Not permitted
    F, S 1,2 Yes 1 hour less than 20' Not permitted less than 5'
    Protected 5' to 10'
    M, B No 2 hours less than 20'
    1 hour elsewhere
    Not permitted less than 5'
    Protected 5' to 20'
    R 1, 2 Yes 1 hour less than 5' Not permitted less than 3'
    Protected 3' to 5'
    No 2 hours less than 20'
    1 hour elsewhere
    Not permitted less than 3'
    Protected 3' to 20'
    R 3, 4 Yes 1 hour less than 3' Not permitted less than 3'
    No 2 hours less than 20'
    1 hour elsewhere
    Not permitted less than 3'
    Protected 3' to 20'
    U Yes 1 hour less than 3' Not permitted less than 3'
    No 2 hours less than 20'
    1 hour elsewhere
    Not permitted less than 3'
    Protected 3' to 20'

     

    TABLE C. ALLOWABLE FLOOR AREAS

    Type of Construction
    Occupancy I II
    A B A B
    A-1, 2, 3 100,000 sf (9,290 m ) 40,000 sf (3,716 m ) 10,000 sf (929 m ) 3,000 sf (279 m )
    A-4, 5 150,000 sf (13,935 m ) 50,000 sf (4,645 m ) 15,000 sf (1,394 m ) 5,000 sf (465 m )
    E, I-4 200,000 sf (18,580 m ) 75,000 sf (6,968 m ) 20,000 sf (1,858 m ) 7,500 sf (697 m )
    I-1, 2 80,000 sf (7,432 m ) 30,000 sf (2,787 m ) 8,000 sf (743 m ) Not permitted
    I-3 40,000 sf (3,716 m ) 15,000 sf (1,394 m ) 4,000 sf (372 m ) Not permitted
    H-1, 2, 3, 4, 5 Not permitted Not permitted Not permitted Not permitted
    F-1, 2, S-1, B 150,000 sf (13,935 m ) 50,000 sf (4,645 m ) 15,000 sf (1,394 m ) 5,000 sf (465 m )
    S-2 300,000 sf (27,870 m ) 100,000 sf (9,290 m ) 25,000 sf (2,323 m ) 10,000 sf (929 m )
    R-1, 2 150,000 sf (13,935 m ) 50,000 sf (4,645 m ) 15,000 sf (1,394 m ) 5,000 sf (465 m )
    R-3, 4 10,000 sf (929 m ) 5,000 sf (465 m ) 3,000 sf 279 m ) 2,000 sf (186 m )
    U 3,000 sf (279 m ) 3,000 sf (279 m ) 1,000 sf (93 m ) 1,000 sf (93 m )

     

    Type of Construction
    Occupancy III IV V
    A B H.T. A B
    A-1, 2, 3 20,000 sf (1,858 m ) 6,000 sf (557 m ) 20,000 sf (1,858 m ) 4,000 sf (372 m ) Not permitted
    A-4, 5 30,000 sf (2,787 m ) 10,000 sf (929 m ) 30,000 sf (2,787 m ) 5,000 sf (465 m ) 1,500 sf (139 m )
    E, I-4 40,000 sf (3,716 m ) 15,000 sf (1,394 m ) 40,000 sf (3,716 m ) 7,500 sf (697 m ) 2,000 sf (186 m )
    I)1-2 15,000 sf (1,394 m ) 5,000 sf (465 m ) 15,000 sf (1,394 m ) 4,000 sf (372 m ) Not permitted
    I)3 8,000 sf (743 m ) 3,000 sf (279 m ) 8,000 sf (743 m ) 2,000 sf (186 m ) Not permitted
    H-1, 2, 3, 4, 5 Not permitted Not permitted Not permitted Not permitted Not permitted
    F-1, 2, S-1, 3B 30,000 sf (2,787 m ) 10,000 sf (929 m ) 30,000 sf (2,787 m ) 5,000 sf (465 m ) 1,500 sf (139 m )
    S-2 50,000 sf (4,645 m ) 20,000 sf (1,858 m ) 50,000 sf (4,645 m ) 10,000 sf (929 m ) 2,000 sf (186 m )
    R-1, 2 30,000 sf (2,787 m ) 10,000 sf (929 m ) 30,000 sf (2,787 m ) 5,000 sf (465 m ) 1,000 sf (93 m )
    R-3, 4 3,000 sf (279 m ) 2,000 sf (186 m ) 3,000 sf (279 m ) 2,000 sf (186 m ) 1,000 sf (93 m )
    U 1,000 sf (93 m ) 1,000 sf (93 m ) 1,000 sf (93 m ) 1,000 sf (93 m ) 1,000 sf (93 m )

     

(Ord. No. 040477, § 1, 8-12-04; Ord. No. 071193, § 1, 1-3-08; Ord. No. 120375, § 1, 5-24-12)