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General. | |
Exits, Stairs and Occupant Load. | |
Stairways and Exit Corridors. | |
Basement Stairways. | |
Reserved. | |
Stairway to Roof. | |
Stairway Enclosures. | |
Smoke Barriers. | |
Elevator Enclosures. | |
Exit Connection from Rear Yard to Street. | |
Unobstructed Means of Egress. | |
In those buildings constructed or converted to R-1 or R-2 Occupancy, in which the Building Code, , or regulations of the State Fire Marshal in effect at the time of construction or alteration require provisions other than this Code, the Building Code, , and State Fire Marshal provisions shall prevail.
(Added by Ord. 350-95, App. 11/3/95; amended by Ord. 256-07, App. 11/6/2007)
Exit facilities for buildings constructed, altered or converted after July 26, 1958 shall comply with the codes in effect at the time of construction, alteration or conversion, or the provisions of Chapter 10 of the Building Code, whichever is the less restrictive, as is applicable to that occupancy.
Exit facilities for buildings constructed, altered or converted prior to July 26, 1958 shall meet the following minimum requirements listed below, or where less than two exits are required shall comply with the provisions of Chapter 10 of the Building Code, including all requirements of the current Building Code for fire resistance and exits, whichever is the less restrictive:
Each of the following buildings now in existence shall be provided with access for each dwelling unit or guest room to two exits which shall be accessible either directly or through a public hallway and shall be so located that if access to one be denied, the other shall be available:
(1) In apartment houses, hotels (and two-family dwellings per Section
of the Building Code).
Where exits are arranged so that one exit must be passed to get to the other, intervening doorways between any exit doorway on a dead-end corridor more than 20 feet in depth and the main exit corridor shall be provided with a three-quarter-hour opening protector or a sprinkler head located on the room side of the doorways as well as in the dead-end corridor.
(2) Every single-family dwelling having more than two stories in which there are rental units shall have not less than two exits from the uppermost stories to a floor of occupancy below which has two exits to the exterior of the building.
(3) Every building or usable portion thereof shall have at least one exit and shall have not less than two exits where the occupant load exceeds the number set forth in Table 10A. In all occupancies floors above the first story having an occupant load of more than 10 shall have not less than two exits.
(4) In all buildings, in basements, dwelling units, and sleeping units below the fourth story, said sleeping rooms shall have an emergency egress of 5.7 square feet with minimum of 20-inch width and 24-inch height and a finished height sill not more than 44 inches above the floor. See Building Code Section
.
(5) Sleeping rooms below the fourth story shall have at least one operable window or exterior door approved for emergency escape or rescue. The units shall be operable from the inside to provide a full clear opening without the use of separate tools. Buildings with additional stories shall provide egress per Chapter 10 of the Building Code.
EXCEPTIONS:
(i) Except as provided in Table No. 10A of the Building Code, only one exit shall be required from the second floor within an individual unit.
(ii) Two or more dwelling units on the second story may have access to only one common exit when the total occupant load does not exceed 10.
(b) Exit Doors Require Manual Release. In all one and two-family dwellings, apartment houses, and hotels, required means of egress doors, including security gates, must be equipped with an approved manual release mechanism that shall be operable from the inside without the use of a key, tool or any special knowledge or effort.
(c) Security Bars Require Manual Release. In all one and two-family dwellings, apartment houses, and hotels, security bars installed over an exterior window or door required for emergency rescue from a sleeping room, must be equipped with an approved manual release mechanism that shall be operable from the inside without the use of a key, tool or any special knowledge or effort.
(Added by Ord. 399-89, App. 11/6/89; amended by Ord. 161-92, App. 6/4/92; Ord. 350-95, App. 11/3/95; Ord. 256-07, App. 11/6/2007)
(a) Exit Corridors. Exit corridors in buildings constructed, altered or converted prior to July 26, 1958, shall have a minimum width of 30 inches.
(b) Stairways. Stairways in buildings altered or converted for use as an apartment house or hotel prior to July 26, 1958 shall have a minimum width of 30 inches. The rise and run of stairways need not be changed if part of the original building construction, except that is such buildings constructed, altered or converted after May 31, 1917 winding stairways are prohibited unless only used as a means of egress.
(c) Stairway Handrails. Every stairway shall have at least one handrail. All stairways more than 44 inches in width shall have handrails for each side, and every stairway required to be more than 88 inches in width shall have intermediate handrails dividing the stairway into portions not more than 66 inches in width. See also Chapter 10 of the San Francisco Building Code.
EXCEPTION: Existing stairways in one-family and two-family dwellings shall have at least one handrail.
(d) Closets and Storage Areas Under Stairs. Closets and storage areas under stairs in Group R, Divisions 1 and 2 Occupancies shall conform to Section 1009.5.3 of the Building Code.
(Added by Ord. 399-89, App. 11/6/89; amended by Ord. 161-92, App. 6/4/92; Ord. 256-07, App. 11/6/2007)
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