Loading...
Ordinance No. 43 ORDINANCE NO. 43 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF CHINO • HILLS, CALIFORNIA, AMENDING THE CURRENT EDITION, OF THE UNIFORM BUILDING CODE, 1991 EDITION, RELATING TO FIRE SPRINKLERS. WHEREAS, a noticed public hearing has been held by the City Council, at which time all interested persons had the, opportunity to appear and be heard on the matter of amending the Uniform 'Building Code, 1991 Edition. NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF CHINO HILLS, CALIFORNIA, DOES ORDAIN AS FOLLOWS : SECTION 1 . BUILDING CODE AMENDED, FIRE SPRINKLERS . Section 3802 of the Uniform Building Code, 1991 Edition, as adopted is amended to read: Automatic Fire-extinguishing Systems : Section 3802 (a) Where required. An automatic fire-extinguishing system shall be installed in the occupancies and locations as set forth in this section. For provisions on special hazards and hazardous materials, see Uniform Fire Code Section 10 . 501 . and Articles 45 , 48, 49 and 80 . (b) All Occupancies except Group R, Division 3 and Group M. Except for Group R, Division 3 and Group M Occupancies, an automatic sprinkler system shall be installed: • 1 . Throughout all buildings having an area of 7, 500 feet or more. 2 . In every story or basement of all buildings when the floor area exceeds 1, 500 square feet and there is not provided at least 20 square feet of opening entirely above the adjoining ground level in each 50 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 30 inches . Such opening shall be accessible to the Fire Department from the exterior and shall not be obstructed in a manner that fire fighting or rescue cannot be accomplished from the exterior. When the openings in a story are provided on only one side and the opposite wall of such story is more than 75 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 75 feet from openings required in this section, the basement shall be provided with an approved automatic sprinkler system. • Page 1 of 9 3 . At the top of rubbish and linen chutes and in their terminal rooms . 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. 4 . In rooms where nitrate film is stored or handled. 5 . In protected combustible fiber storage vaults as defined in the Code . 6 . In all automobile parking areas which are located beneath any structure used for human occupancy regardless of area in accordance with N. F. P. A. Standard 13-D, amended to provide sprinkler coverage in the ratio of 100 square feet of floor area per sprinkler head. Exception: Private garages in conjunction with R-3 Occupancies described as single-family, detached dwelling units . 7 . 8 . Fire protection systems in the aforementioned sections will be required to be tested in accordance with State Fire Marshal regulations and after any major repair or modification. The system certification and maintenance records must be provided to the Fire Department . Neither the City nor the Fire Department shall be held liable for any conditions • arising from such tests . (c) Group A Occupancies: (c) Group A Occupancies . 1 . Drinking establishments . An automatic sprinkler system shall be installed in rooms used by the occupants for the consumption of alcoholic beverages and unseparated accessory uses where the total area of such unseparated rooms and assembly uses exceeds 5, 000 square feet . For uses to be considered as separated, the separation shall not be less than as required for a one-hour occupancy separation. The area of other uses shall be included unless separated by at lease a one-hour occupancy separation. 2 . Basements . An automatic sprinkler system shall be installed in basements classified as a Group A Occupancy when the basement is larger than 1, 500 square feet in floor area. • Page 2 of 9 1 . An automatic sprinkler system shall be installed throughout all buildings having an area of 7, 500 square feet or more. • 2 . Stairs : An automatic sprinkler system shall be installed in enclosed usable space below or over a stairway in Group A, Divisions 2, 2 . 1, 3 and 4 Occupancies . 3 . Multi-theater Complexes : An automatic sprinkler system shall be installed in every building containing a multi- theater complex. 4 . Amusement Building: An automatic sprinkler system shall be installed in all amusement buildings . The main water-flow switch shall be electrically supervised. The sprinkler main cutoff valve shall be supervised. When the amusement building is temporary, the sprinkler water-supply system may be of an approved temporary type. Exception: An automatic sprinkler system need not be provided when the floor area of a temporary amusement building is less than 1, 000 square feet and the exit travel distance from any point is less than 50 feet . 5 . Other Areas : An automatic sprinkler system shall be installed under the roof and gridiron, in the tie and fly galleries, and in all places behind the proscenium wall of stages; over and within permanent platforms in excess of 500 square feet in area; and in dressing rooms, workshops and • storerooms accessory to such stages or permanent platforms . Exceptions: a. Stages or platforms open to the auditorium room on three or more sides . b. Altars, pulpits or similar platforms and their accessory rooms . c . Stage gridirons when side-wall sprinklers with 135 °F rated heads with heat-baffle plates are installed around the entire perimeter of the stage except for the proscenium opening at points not more than 30 inches below the gridiron or more than 6 inches below the baffle plate . d. Under stage or under platform areas less than 4 feet in clear height used exclusively for chair or table storage and lined on the inside with materials approved for one-hour, fire-resistive construction. • Page 3 of 9 (d) Group B, Division 2 Occupancies: • 1 . An automatic sprinkler system shall be installed throughout all buildings having an area of 7, 500 square feet or more . 2 . The area of mezzanines shall be included in determining the areas where sprinklers are required. (e) Group E Occupancies : Basements . An automatic sprinkler system shall in installed in basements classified as a Group E Occupancy when the basement is larger than 1, 500 square feet in floor area. 1 . An automatic sprinkler system shall be installed throughout all buildings having an area of 7, 500 square feet or more . 2 . Stairs : An automatic sprinkler system shall be installed in enclosed usable space below or over a stairway in Group E Occupancies . (f) Group H Occupancies : 1 . Divisions 1, 2, 3 , and 7 : An automatic fire-extinguishing system shall be installed in Group H, Division 1, 2 , 3 , and 7 Occupancies . 2 . Division 4 : An automatic fire-extinguishing system shall be installed in Group H, Division 4 Occupancies having a floor area of more than 3 , 000 square feet . • 3 . Division 6 : An automatic fire-extinguishing system shall be installed throughout buildings containing Group H, Division 6 Occupancies . The design of the sprinkler system shall not be less than that required under U.B.C. Standard No. 38-1 for the occupancy hazard classifications as follows : OCCUPANCY HAZARD LOCATION CLASSIFICATION Fabrication areas Ordinary Hazard Group 3 Service corridors Ordinary Hazard Group 3 Storage rooms without dispensing Ordinary Hazard Group 3 Storage rooms with dispensing Extra Hazard Group 2 Exit corridors Ordinary Hazard Group 3* * When the design area of the sprinkler system consists of a corridor protected by one row of sprinklers, the maximum number of sprinklers that need to be calculated is 13 . • Page 4 of 9 (g) Group I Occupancies : An automatic sprinkler system shall be installed in Group I Occupancies : Exception: In jails, prisons and reformatories, the piping system may be dry, provided a manually operated valve is installed at a continuously monitored location. Opening of the valve will cause the piping system to be charged. Sprinkler heads in such systems shall be equipped with fusible elements or the system shall be designed as required for deluge systems by . See in U.B.C. Standard No. 38-1 . (h) Group R, Division 1 Occupancies : An automatic sprinkler system shall be installed throughout all new construction and additions . Existing buildings shall be retrofit throughout with automatic sprinklers when the new addition is 500 or greater of the original building square footage. Automatic sprinkler system installation shall be in accordance with the standard for installation of sprinkler systems, U.B.C. Standard 38-3, 1991 . Residential or quick-response standard sprinkler heads shall be used in the dwelling unit and guest room portions of the building. Sprinkler systems shall be suitably freeze protected for climatic conditions . SECTION 2 : Section 1202 of the Uniform Building Code, 1991 Edition, is amended by adding subsection 1202 (c) to read: 1202 (c) Group R Unit Separation: Not withstanding other provisions of the section, the units of newly constructed two-family residential building shall be separated by two (2) hour area separation wall . • Exception: Fully sprinklered buildings . SECTION 3 : Section 505 (f) Uniform Building Code, 1991 Edition, is amended to read: (f) Area Separation Walls . 1 . General . Each portion of a building separated by one or more area separation walls which comply with the provisions of this subsection may be considered a separate building. The extent and location of such area separation walls shall provide a complete separation. Area separation walls shall not be considered to create separate buildings for the purpose of automatic fire sprinkler system requirements as set forth in Chapter 38. EXCEPTION: Buildings separated by continuous area separation walls of four-hour fire-resistive construction without openings. Buildings required to have automatic fire sprinkler protection as set forth in Section 13113 of the Health and Safety Code are prohibited from using area separation walls in lieu of automatic fire sprinkler protection. When an area separation wall also separates occupancies that are required to be separated by an occupancy separation, the most restrictive requirements of each separation shall apply. SECTION 6 . AMENDMENTS NECESSARY/FINDINGS . Pursuant to Section 17958 . 5 of the Health and Safety Code of the State of California, the City •Council of the City of Chino Hills hereby finds that the amendments of those building standards which have been adopted by any State agency contained in the Uniform Building Code, 1991 Edition, made by this Ordinance are reasonably necessary. Page 5 of 9 The "Findings of Need" contained herein address each of these conditions and present the local situation which cause the established amendments to be adopted. 1 . The climate weather patterns within the City are a factor making the amendments reasonably necessary. Frequent periods of drought and low humidity add to the fire danger. 2 . During the summer months, the dry winds and existing vegetation mix to create a hazardous fuel condition which has resulted in large loss vegetation and structure fires . Summer temperatures exceeding 100° and severe "Santa Ana" winds frequently occur and can move a fire quickly throughout areas of the City. Multiple shifting wind patterns throughout the canyon areas add the difficulty in suppressing fires . 3 . Because of weather patterns, the City (like other Southern California cities) has experienced a need for water conservation. Due to storage capacities and consumption, and a limited amount of rainfall future water allocation is not fully dependable . While sound management of the water resources is possible, demands and possible critical depletions on an already stressed water supply can most assuredly be predicted. 4 . The topographical features located throughout the City also make the amendments reasonably necessary. Located through the City are major roadways, highways and flood control channels which create barriers and slow response times . Another unique factor • which creates barriers and slow response times are the multiple canyons located in the City. Due to the sloping present in the valley the City is located in, as well as the present street and storm drain design, heavy rainfall causes roadway flooding and landslides and at times may make an access route impassable . 5 . The City has within its boundaries potentially active seismic hazards . Seismic activity within the City occurs yearly and a fire potential exists with these active faults . Existing structures and planned new development are at serious risk from these faults . 6 . Structures in close proximity to each other pose an exposure problem which may cause a fire to spread from one structure to another. • Page 6 of 9 7 . For practicality and cost reasons, many new structures are built of wood (Type V) construction. Many existing structures also • have wood shake roofs . The potential for a conflagration exists due to the design and density of current structures . 8 . Electrical supply and telephone communication failures occur due to high winds as well as other reasons . Water supply pumps and early notification of a fire cannot always be counted on. SECTION 7 . SEVERABILITY. If any section, subsection, sentence, clause, phrase or word of this Ordinance is for any reason held to be invalid by a Court of competent jurisdiction, such decision shall not affect the validity of the remaining portions of this Ordinance . The City Council hereby declares that it would have passed and adopted this Ordinance and each and all provisions thereof, irrespective of the fact that any one or more of said provisions may be declared invalid. SECTION 8 . The City Clerk is directed to appropriately codify the provisions of this Ordinance in the Chino Hills Municipal Code . SECTION 9 . The City Clerk shall certify as to the adoption of this Ordinance and shall cause a summary thereof to be published within fifteen (15) days of the adoption and shall post a certified copy of this ordinance, including the vote for and against the same, in the Office of the City Clerk, in accordance with Government Code Section 36933 . • PASSED, APPROVED, AND ADOPTED this 8th day of March , 1994 . MI :VG. CKMAN MAYOR PRO TEM ATTEST: 06, LINDA D. RUTH, C C TY CLERK APPROVED AS TO FORM: J - z' THOMAS C. WOOD, CIT1 ATTORNEY • Page 7 of 9 • STATE OF CALIFORNIA ) COUNTY OF SAN BERNARDINO ) SS CITY OF CHINO HILLS ) I, LINDA D. RUTH, City Clerk of the City of Chino Hills, DO HEREBY CERTIFY that the foregoing Ordinance No. 43 was duly introduced for first reading at a regular meeting of the City Council held on 13th day of April, 1993, was duly re-introduced as an amended first reading at a regular meeting of the City Council held on the 22nd day of February, 1994, and that thereafter, said Ordinance was duly passed and adopted at a regular meeting of the City Council held on the 8th of March, 1994, by the following roll call vote, to wit: AYES: COUNCIL MEMBERS: WICKMAN, NORTON-PERRY, THALMAN NOES: COUNCIL MEMBERS: NONE ABSENT: COUNCIL MEMBERS: LARSON AND GRAHAM „.6• LINDA D. RUTH, Cf7Y CLERK III (SEAL) The foregoing is the original of Ordinance No. 43 duly passed and adopted by the Chino Hills City Council at their March 8, 1994 meeting. LINDH CITY LERK (SEAL) III