Sec. 9-9-12. Section 903.1—Automatic sprinkler systems—General.

Section 903.1 is amended to read as follows:
903.1 General. Automatic sprinkler systems shall comply with this section and the following:
An automatic sprinkler system shall be installed in the occupancies and locations set forth in this Chapter 9 and in the locations and according to the conditions described below:
(1)  In all Group R, Division 1 and 3 Occupancies. Group R, Division 1 multifamily dwelling occupancies shall have automatic sprinkler systems installed in accordance with NFPA 13 R. Group R, Division 3 occupancies shall have automatic sprinkler systems installed in accordance with NFPA 13 D and local amendments.
Group R, Division 3 Occupancies which incur damage to the structure by fire or other natural or manmade causes which result in damage to the structure in excess of fifty percent of the assessed value shall cause the building or structure to have automatic sprinkler systems installed in accordance with NFPA 13 D and local amendments.
(2)  In all other buildings in which the total floor area of all floors is five thousand square feet or more, or any building which are three or more stories regardless of height. Fire walls shall not be considered to create a separate occupancy for the purpose of automatic fire sprinkler systems required under the provisions of this ordinance. The floor area shall be the total floor area of the building respective of area fire walls as set forth in California Building Code Section 705.1.
Exception 1. Group U occupancies, not including private garages attached to R-3 Occupancies;
Exception 2. In storage and bulk handling facilities for grain, including grain elevators and flat storage buildings, automatic fire sprinklers shall not be required in areas where the grain is stored, provided:
(A)  An automatic fire extinguishing sprinkler system is not otherwise required for code compliance,
(B) The floor area of the building or structure does not exceed the maximum basic allowable floor area permitted for specific types of construction as specified in Table 503 and including the allowable increases for clear yard spaces as specified in the California Building Code, and
(C)  The construction of the building or structure complies with all other code provisions for the properly assigned group occupancy classification and type of construction.
(3)  Notwithstanding other provisions of this section, the requirement described in this Section 903.1 shall be applied to alterations, repairs, additions and changes of occupancy of existing buildings as follows:
(A)  Where there is no change of occupancy, alterations or repairs not increasing floor area, total height, or number of stories of an existing building may be made without making the entire building comply with this section.
(B)  Buildings classified as other than Group R, Division 3. Whenever, after the date of adoption of the ordinance codified in this section, an addition or the sum of additions made to an existing building or structure increases the floor area or height by more than twenty-five percent of the existing building or increases the number of stories beyond two, the entire building or structure shall comply with this section.
Exception 1. Buildings not exceeding five thousand square feet after the addition;
(C)  Group R, Division 3, including attached Group U occupancies. Whenever, after the date of adoption of the ordinance codified in this section, an addition or the sum of additions made to an existing building or structure increases the floor area or height by more than fifty percent or 1000 square feet of the existing building or increases the number of stories beyond two, the entire building or structure shall comply with this section.
(D)  No change shall be made in the character of the occupancy or use of any existing building or structure unless the entire building or structure is made to comply with this section.
Exception 1. The character of the occupancy of existing buildings may be changed subject to the approval of the building official and the approval of the fire chief, and the building may be occupied for purposes in other occupancy groups without conforming to all the requirements of this section or the California Building Code for those groups, provided the new or proposed use is not more hazardous, based on life and fire risk, than the existing use.
Exception 2. No change in the character of occupancy of a building shall be made without a certificate of occupancy, as required by California Building Code. The building official may issue a certificate of occupancy pursuant to the intent of the above exception without certifying that the building complies with all provisions of this section and provisions of the California Building Code.
(4)  NFPA 13D Reference in this code to the National Fire Protection Association (NFPA) Standard 13D shall refer to the 2002 Edition of said standard.
(A)  Section 4.3.1 of NFPA 13D is amended to read as follows:
4.3.1 All systems shall be hydrostatically tested for leakage at not less than 200 psi. pressure for thirty minutes.
(B)  Section 7.6 is amended to read as follows:
7.6 A local water flow alarm shall be provided on all sprinkler systems. The local alarm shall consist of a listed and approved device installed in a location fronting the property. An approved interior alarm device shall be installed and interconnected with all smoke detectors to be clearly audible in all bedrooms over the background noise levels with all intervening doors closed.
Section (C) is deleted in its entirety and replaced with a new section (C) adding section 8.6.3 (4) of NFPA 13D 2002 reading:
(C)  Section 8.6.3 (4). The area is not a utility closet which contains heat or flame producing appliances, a closet with attic access or a bedroom closet.
(5)  In every story or basement of all buildings when the floor area exceeds one thousand five hundred square feet and there is not provided at least twenty square feet of opening entirely above the adjoining ground level in each fifty lineal feet or fraction thereof of exterior wall in the story or basement on at least one side of the building. Openings shall have a minimum dimension of not less than thirty inches. Such openings shall be accessible to the fire department from the exterior and shall not be obstructed in a manner that firefighting or rescue cannot be accomplished from the exterior.
When openings in a story are provided on only one side and the opposite wall of such story is more than seventy-five feet from such openings, the story shall be provided with an approved automatic sprinkler system, or openings as specified above shall be provided on at least two sides of an exterior wall of the story.
If any portion of a basement is located more than seventy-five feet from openings required in this section, the basement shall be provided with an automatic sprinkler system.
(6)  At the top of rubbish and linen chutes and in their terminal room. Chutes extending through three or more floors shall have additional sprinkler heads installed within such chutes at alternate floors. Sprinkler heads shall be accessible for servicing.
(7)  In rooms where nitrate film is stored or handled.
(8)  In protected combustible fiber storage vaults as defined in the California Fire Code.
(9)  Throughout all buildings with a floor level with an occupant load of thirty or more that is located fifty-five feet or more above the lowest level of fire department vehicle access.
Exceptions 1. Airport control towers;
Exception 2. Open parking structures;
Exception 3. Group F, Division 2 occupancies.
(10) In other areas and occupancies as required in Section 903 of the California Building Code.
(11) California Building Code. The following sections of the 2007 California Building Code are hereby declared to be part of this section as if set forth in full herein:
(A)  Alternative methods for fire protection shall be considered upon application by the owner, subject to approval by the chief and pursuant to California Building Code Section 108.7.1, alternate materials and methods of construction.
(B)  California Building Code, Section 602.1 and Table 601, Types of Construction, fire resistive substitutes.
(C)  California Building Code, Section 506.3, allowable area increases for automatic sprinkler systems.
(D)  California Building Code, Section 504.2, maximum height of buildings and increases for automatic sprinkler systems.
(Ord. No. 1489, § 5 (part).)