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HomeMy WebLinkAbout016 - 02/20/1979 - ELIMINATING FIRE ZONES FROM THE UNIFORM BUILDING CODE ORDINANCE NO 16, 1979 BEING AN ORDINANCE ELIMINATING FIRE ZONES FROil THE UNIFORM BUI1 DTNC COPF OF THE CITY OF FORT COLLINS BE IT ORDAINED BY THE COUNCIL OF THE CITY OF FORT COLLINS as follows Section 1 That Section 38-5 of the Uniform Buildino Code, 1976 Edition, of the City of Fort Collins be, and the same hereby is, repealed Section 2 That Section 38-6 of the Uniform Buildira Code, 1976 Edition, of the City of Fort Collins be, and the same hereby is, repealed Section 3 That Section 38-7 of the Uniform Building Code, 1976 Edition, of the City of Fort Collins be, and the same hereby is, repealed Section 4 That Section 38-8 of the Uniform Building Code, 1976 Edition, of the City of Fort Collins be, and the same hereby is, repealed Section 5 That Section 38-9 of the Uniform Building Code, 1976 Edition, of the City of Fort Collins be, and the same hereby is, repealed Section 6 That Section 38-10 of the Uniform Building Code, 1976 Edition, of the City of Fort Collins be, and the same hereby is, repealed Section 7 That the Uniform Building Code, 1976 Edition, Volume I , is hereby amended and changed in the following respects "A That Part IV of the Outline of Contents by Parts, Chapters and Sections be, and it hereby is, repealed B That the classification of buildings of Fire Zone as recommended on page 20 of the Uniform Building Code, 1976 F dl tlon, be, clod it ier by is, r epealp I C That Section 104 (a) be, and it hereby is, amended so as to orrit any reference to Fire Zones D That Section 105 be, and it hereby is, amended so as to read as follows "MOVED BUILDINGS AND TEMPORARY BUILDINGS Sec 105 Buildings or structures moved into or within the jurisdiction shall comply with the provisions of this Code for new buildings or structures Temporary structures such as reviewing stands and other miscellaneous struc- tures, sheds, canopies, or fences used for the protection of the public around and in conjunction with con- struction work may be erected by special permit from the building official for a limited period of time Such buildings or structures need not comply with the type of construction or fire-resistive time periods re- quired by this Code Temporary buildings or structures shall be completely removed upon the expiration of the time limit stated in the permit " E That Section 505 (a) be, and it hereby is amended so as to omit any reference to Fire Zones F That the last sentence of Section 505 (d) be, and it hereby is, amended so as to read "See Chapters 6 to 15 inclusive for special occupancy provisions " G That Table No 5-A be, and it hereby is, amended to read as follows - SEE FOLLOWING PAGE - -2- PALr TWO PARTE NO 5-A - WALL AND OPENING PROTrCTION OF OCCUPANCIES BASED ON LOCATION ON PROPEF 1 TYPES MONP-HOUR, II-N AND V CONSTRUCTION For exterior wall ind opening protection of Type II one-hour, I1-N and V buildings see table below Exceptions to limitation for Types II One-hour, II-N and Type V construction, a<< provided in Sections 1109, 2003 and 2203 apply For Types 1, II-1 R , IIC and IV construction see Sections 11.03, 1903 and 210's t FIRE RES14)TANCE OF OPfKINGS IN GROJP DESCRIPTION OF OCCUPANCY EXTERICR MALLS EXTERIOR WAILS 1-Any assembly building with a stage and tin occupant load of Not applicable [See Section 602 (a) ] 1000 or more in the building 2-Any building or portion of a building having an assembly room with an occupant load of less than 1000 and a stage Not permitted legs A 2 1-Any building or portion of a building having an assembly 2 hour less than 10 feet, than 5 feet Pro- room with an occupant lord of 300 or mole without a stage, 1 hour elsewhere tected less tha, including such buildings used for educational purposes and 10 feet See also not classed as a Group E or Group B,Division 2 Occupancy Section 3-Any building or portion of a building having an assembly Not permittea less 702 room with an occupant load of less than 300 without a stage, 2 hour less than 5 feet, than 5 feet Pro including such buildings used for education purposes and not tected less than classed 1s a Group E or Group B, Division 2 Occupancy 10 feet 4-Stadiums, reviewing stands and amusement park structures 1 hour less than 10 feet Protected less tha not included within other Group A Occu ancies 10 feet 1-Any building used for educational purposes through the E 12th grade by 50 or more persons for more than 12 hours per week or four hours in any one day Not permitted less See also 2-Any building used for educational purposes through the 2 hour less than 5 feet, than 5 feet Pro- Secti it 12th grade by less than 50 persons for more than 12 1 hour less than 10 feetl tected less than 802 hours per week or four hours in any one day 10 feet 3-Any building used for day-care purposes for more than six children 1-Nurseries for full-time care of children under the age of six (each accommodating more than five persons) 2 hour less than 5 feet, Hospitals, sanitariums, nursing homes with nonambula- 1 hour e�sewhere Not permitted less tory patients, and similar buildings (each accomodating than 5 feet Pro- more than fivepersons) tected less than I 2-Nursing homes for ambulatory patients, homes for children 10 feet See also six yrs of age or oNer (each accommodating more than 5 1 hour Section persons 902 3-Muntal hospitals, mental sanitariums, dails, prisons, reformatories and buildinps where personal liberties of Permitted in Types I and II-F R buildings only inmates are similarly restrained l [Set- Section 902(b) ] 1Group r, Divisions 2 and 3 Occupancies having an occupant load of not more than 20 may have exterior wall aztd opt-ning protection as rLqutred for Group It, Divtsion 3 Occupancies PAGF TIIRrF TABLE NO 5-A -Continued TYPFS II, ONE-HOUR, II-N AND V ONLY LIRE RESISTANCE OF OPLNINGS TN GROUP DESCRIPTION OF OCCUPANCY EXTFRTOR WAILS FXTLRIOI2 WAILS 1-Storage and handling of hazardous and highly flammable See Chapter 10 and the fire Code or explosive materials other than flammable liquids - 2-Storage and handling of Class I, II and III-A liquids as specified in U B C Standard No 10-1, dry cleaning H plants using flammable liquids, paint stores with bulk handling, paint shops and spray painting rooms and shops 4 hour less than 5 feet, Not permitted less I-Woodworking establishments, planing mills, box factories, 2 hour less than 10 feet, than 5 feet buffing rooms for tire rebuilding plants and picking 1 hour less than 20 feet Protected less t i rooms, shops, factories or warehouses where loose com- 20 feet bustible fibers or dust are manufactured, processed, generated or stored and pin refinishing rooms 4-Repair garages 5-Aircraft repair hangars 1 hour less than 60 feet Protected less than 60 feet 1-Gisoline and service stations, storage garages where no repair work is done except exchange of parts and main- B tenance requiring no open flame, welding, or the use of /o Not permitted less ' See also highly flammable liquids 1 hour less than -28 feet than 5 feet Section 2-11holesale and retail stores, office buildings, drinking Protected less than 1102 and dining establishments having an occupant load of 10 feet less than 100, printing plants, municipal police and fire stations, factories and workshops using material not highly flammable or combustible, storage and sales rooms for combustible goods, paint stores without bulk handling Buildings or portions of buildings having rooms used for educational purposes, beyond the 12th r-ide, with less than 50 occupants in any room 3-Aircraft hangars where no rcpai - work is done except Not permitted less exchange of parts and maintenance requiring no open than 5 fe-et flame, welding, or the use of highly flammable 1 hour less than 20 feet Protected less thar liquids 20 feet Open parking garages(For requirements, See Section 1109 ) Heliports CONTINUED ON PAGE FOUR PAGE FOUR TABIE NO 5-A - Continued fYPLS II, ONE-HOUR, II-N AND V ONLY FIRE RESISTANCE OF OPENINGS IN CROUP DESCRIPTION OF OCCUPANCY EXTLRIOR WALLS EXTERIOR WALLS Ice plants, powers plants, pumping plants, cold — Not permitted less storage, and creameries factories and workshops using than 5 feet B-4 noncombustible and nonexplosive materials Storage 1 hour less than 5 feet and s ►les rooms of noncombustible and nonexplosive materials R ec also 1-flotels and apartment houses 1 hour less than 5 feet Not permitted less Section Convents and monasteries (each aecomodating more than 5 feet 1302 than 10 persons) R 3-Dwellings and lodging houses 1 hour less than 5 feet Not permitted less than 5 feet 1-Private garages, carports, sheds and agricultural 1 hour less than 3 feet buildings (or may be protected on Not permitted less the exterior with materials than 3 feet approved for 1-hour fire- resistive construction) 2-Fences over 6 feet high, tanks and towers Not regulated for fire resistance 2For agricultural buildings see Appendix, chapter 15 NOTFS (1) See Section 504 for types of walls affected and requirements covering percentage of openings permitted in exterior wills (2) For ldditional restrictions see chapters under Occupancy and Types of Construction (3) For walls facing %7-eels, yards and public ways, see Part V (4) Openings shall be p-ote,eted by a fire assembly having t tbree-fourths-hour fire-protection rating H That Table No 5-C be, and it hereby is, amended by deleting therefrom all references to Fire Zones I That Section 1002 (b) be, and it hereby is, amended so as to read "(b) Special Provisions Division 5 Occupancies shall have exterior walls of not less than one-hour fire-resistive construction or shall be surrounded by public space, streets or yards, not less than 60 feet in width The area increases allowed by Section 506 (a) shall not exceed 500 percent for air- craft repair hangars In areas where motor vehicles, boats or airplanes are stored, repaired or operated and where flammable liquids are stored or used, floor surfaces shll be of noncombus- tible nonabsorbent materials EXCEPTION Floors may be surfaced or waterproofed with asphaltic paving materials where no repair work is done For special provisions and hazardous chemi- cals and magnesium see also the Fire Code A Division 4 Occupancy having a floor area not exceeding 2500 square feet shall have exterior walls of not less than two-hour fire-resistive construction when less than 5 feet from a property line and of not less than one-hour fire-resistive construction when more than 5 feet but less than 10 feet from a property line For smoke and heat venting, see Section 3206 " J That Section 1003 be, and it hereby is, amended to read as follows "Sec 1003 For fire-resistive protection of exterior walls and openings , as determined by location on property, see Section 504 and Part V " -3- Group H, Division 1 Occupancies shall be located 60 feet from all property lines including property lines adjacent to public ways Group H , Division 2 Occupancies containing hazardous materials in excess of the amounts listed in Table No 10-A shall not exceed 1 , 500 square feet in area unless there is more than 30 feet from all property lines including property lines adjacent to public ways When a building is of mixed occupancy and contains a Group H, Division 2 Occupancy, the Group H. Divisior 2 Occupancy shall be separated from the other occupancy as required in Table No 5-B Such Group H, Division 2 Occupancy shall be on the outer perimeter of the building and its exterior wall shall be a minimum of 30 feet from the property line " K That Section 1109 (d) be, and it hereby is, amended to read as follows "(d) Area and Height Area and height of open parking garages shall be limited as set forth in Table No 11-A except for increases allowed by subsection (e) In structures having a spiral or sloping floor, the horizontal projection of the structure at any cross section shall not exceed the allowable area per parking tier In the case of a structure having a contin- uous spiral floor, each 9 feet 6 inches of height or portion thereof shall be consi- dered as a tier The clear height of a parking tier shall be not less than 7 feet, except that a lesser clear height may be permitted in mechanical- access open parking garages when approved by the Building Official L That Table 11-B be, and it hereby is, amended to read as follows -4- "Distance from Property Line to Buildinq Wall Construction 0' - 20' One Hour" M That Chapter 16 of the Uniform Building Code, 1976 Edition, be, and it hereby is, repealed N That Section 1701 be, and it hereby is, amended by deleting therefrom any reference whatsoever to Fire Zones 0 That Section 1704 be, and it hereby is, amended so as to read as follows "ROOFS Sec 1704 Roof covering shall be fire retar- dant except in Types III, IV and V buildings , where it may be as follows 1 Ordinary roof coverings may be used in Group R , Division 3 Occupancies 2 Ordinary roof coverings may be used in Group R , Division 1 Occupancies which are not more than two stories in height and have not more than 3,000 square feet of projected roof area and there is a minimum of 10 feet from the building to the pro- perty line on all sides except for street fronts 3 Class C roof coverings which comply with the Uniform Building Code Standard No 32-7 and roofs of No 1 cedar or redwood shakes and No 1 shingles constructed in accordance with the require- ments of the Uniform Building Code Standard No 32- 14 for Special Purpose Roofs may be uses on Group A, Division 3, Group B, Divisions 1 and 2 and Group R, Division 1 Occupancies which are not more than two stories in height and have not more than 6 ,000 square feet of projected roof area and there is -5- a minimum of 10 feet from the building to the property lines on all sides except for street fronts Skylights shall be constructed as required in Chapter 34 Penthouses shall be constructed as required in Chapter 36 For use of plastics in roofs, see Chapter 52 For Attics Access and Area, see Section 3205 For Roof Drainage, see Section 3207 " P That Section 1705 (d) be, and it hereby is amended to read as follows "(d) Walls Fronting on Streets or Yards Regardless of fire-resistive requirements for exterior walls, certain elements of the walls fronting on streets or yards having a width of 40 feet may be con- structed as follows 1 Bulkheads below show windows, show- window fr arnes, aprons and showcases may he of combustible materials provided the height of such construction, does not exceed 15 feet above grade 2 Wood veneer of boards not less than 1 -inch nominal thICKnesS ur exterior type panels not less than 3/8-inch nominal thickness may be applied to walls provided the veneer does not exceed 15 feet above grade, and further provided such veneer shall be placed either directly against noncombustible surfaces or furred out from such sur- faces not to exceed 1 5/8 inches witn all concealed spaces fire-stopped as provided in Section 2517 (f) " Q That the Exceptions contained in Section 1803 (a) be, and they hereby are, amended to read as follows -6- "EXCEPTIONS 1 Nonbearing walls fronting on streets or yards having a width of at least 40 feet may be of unprotected noncombustible for exterior walls, certain elements of the walls fronting on streets or )ards having a width of 40 feet may be constructed as follows (1 ) Bulkheads below show windows, show- window frames, aprons and showcases may be of combustible materials provided the height of such construction does not exceed 15 feet above grade (2) Wood veneer of boards not less than 1 -inch nominal thickness or exterior type panels not less than 3/8-inch nominal thickness may be applied to walls provided the veneer does not exceed 15 feet above grade, and further provided such veneer shall be placed either directly against noncombustible surfaces or furred out from such sur- faces not to exceed 1 5/8 inches with all concealed spaces fire-stopped as provided in Section 2517 (f) " Q That the Exceptions contained in Section 1803 (a) be, and they hereby are, amended to read as follows "EXCEPTIONS 1 Nonbearinq walls fronting on streets or yard-, having a width of at least 40 feet may be of unprotected noncombustible con- struction 2 In Groups B, and R, Division 1 Occupan- cies, exterior bearing walls may be of two-hour fire-resistive noncombustible construction where openings are permitted 3 In other than Group H Occupancies, exter- ior nonbearing walls may be of one-hour fire-resistive noncombustible construction where unprotected openings are permitted and two-hour fire-resistive noncombustible construction where fire protection of openings is required " -7- R That Section 1804 (b) be, and it hereby is, amended to read as follows "(b) Mezzanine Floors Mezzanine floors and supporting members shall be of one-hour noncombustible construction or of heavy timer construction as specified for floors in Section 2106 (e) Not more than two mezzanine floors shall be in any room of a building No mezzanine floor or floors shall cover more than 33 1/3 percent of the area of any room " S That the Exceptions listed in Section 1903 (a) be, and they hereby are, amended to read as follows "EXCEPTIONS 1 Nonbearing walls fronting on streets or yards having a width of at least 40 feet may be of unprotected noncombustible con- struction 2 In Groups B and R, Division 1 Occupancies, exterior bearing walls may be of two-hour fire-resistive noncombustible construction where openings are permitted 3 In other than Group H Occupancies, exter- ior nonbearino walls may be of one-hour fire-resistive noncombustible construction where unprotected openings are permitted and two-hour fire-resistive noncombustible construction where fire protection of openings is required " T That Section 1904 (b) be, and it hereby is, amended to read as follows "(b) Mezzanine Construction Mezzanine floors and supporting members shall be of one-hour noncombustible construction or of heavy timber construction as specified for floors in Section 2106 (e) Not more than two mezzanine floors snall be in any room of a building -8- No mezzanine floor or floors shall cover more than 33 1/3 pe cent of the area of any room " U That Section 2001 be, and it hereby is, amended by deleting therefrom all references to Fire Zones V That Section 2003 be, and it hereby is, amended to read as follows "EXTERIOR WALLS AND OPENINGS Sec 2003 For fire protection of exterior walls and openings as determined by location of property, see Section 504 and Table No 5-A EXCEPTIONS 1 Nonbearing walls fronting on streets or yards having a width of at least 40 feet may be of unprotected noncombus- tible construction 2 In a Group B or M Occupancy, a fire-resistive time period will not be required for an exterior wall of a one-story Type II-N building, provided the floor area of the building does not exceed 1000 square feet ano such wall is located not less than 5 feet from a property line " W That the Exceptions contained in Section 2103 be, and they hereby are, amended to read as follows "EXCEPTIONS 1 Nonbearing walls fronting on streets, or yards having a width of at least 40 feet may be unprotected when entirely of noncombustible materials 2 In other than Croups H and I Occupancies exterior nonbearing walls may be noncom- bustible one-hour fire-resistive where unprotected openings are permitted and -9- noncombustible two-hour fire-resistive where protection of openings is required 3 In Groups B and R. Division 1 Occupancies exterior noncombustible bearing walls may be two-hour fire-resistive where openings are permitted 4 Approved Tire-retardant treated wood framinq may be used within the assembly of exterior walls as permitted by Exceptions 1 , 2 and 3 provided the required fire resistance is maintained and the exposed outer and inner faces of such walls are noncombustible 5 Wood columns and arches conforming to heavy timber sizes may be used externally in all fire zones where exterior walls are permitted to be unprotected, noncombus- tible construction or where one-hour fire- resistive noncombustible exterior walls are permitted " X That Section 2105 be, and it hereby is, amended to read as follows "ROOFS Sec 2105 Roof coverings shall be as speci- fied in Chapter 32 and Section 1704 " Y That the last paraqraph of Section 2201 be, and it hereby is, repealed Z That the Exception contained in Section 2203 be, and it hereby is, amended so as to read as follows "EXCEPTION Exterior walls fronting on streets or yards having width of at least 40 feet may be of unprotected construction " AA That Section 3401 be, and it hereby is, amended so as to read as follows "SKYLIGHTS Sec 3401 In other than Types III , IV and V buildings , all skylight frames shall be constructed of noncom- -10- bustible materials All skylights shall be designed to carry all tributary roof loads as specified in Section 2305 All skylights, the glazino of which is set at an anqle of less than 45 degrees from the horizontal , shall be mounted at least 4 inches above the plane of the roof on a curb constructed as required for the frame Spacing between supports in one direction for flat wired glass in skylights shall not exceed 25 inches Corrugated wired glass may have supports 5 feet apart in the direction of the corrugation All glass in skylights shall be wire glass or tempered glass , minimum thickness 7/32 inch, except that skylights over vertical shafts extending through two or more stories shall be glazed with plain glass as specified in this Section, provided, that wire glass may be used if ventilation equal to not less than one-eighth the cross-sectional area of the shaft but never less than 4 feet is provided at the top of such shaft Any qlass not wire glass shall be protected above and below with a screen constructed of wire not smaller than No 12 U S gauge with a mesh not larger than 1 inch The screen shall be sub- stantially supported below the glass Ordinary glass rray be used in the roofs and skylights for green- houses, provided the height of the greenhouse at the ridge does not exceed 20 feet above the grade The use of wood in the frames of skylights will be permitted in greenhouses if the Height of the skylight does not exceed 20 feet above the grade , but in other cases metal frames and metal sash bars shall be used -11- Glass used for the transmission of light , if placed in floors or sidewalks, shall be supported by metal or reinforced concrete frames, and such glass shall be not less than 112 inch in thickness Any such glass over 16 square inches in area shall have wire mesh embedded in the same or shall be provided with a wire screen underneath as specified for skylights in this Section All portions of the floor lights or sidewalk lights shall be of the same strength as is required by this Code for floor or sidewalk construction , except in cases where the floor is surrounded by a railing not less than 3 feet 6 inches in height , in which case the construction shall be calcu- lated for not less than roof loads For additional requirements for plastic skylights see Section 5205 " BB That Section 5209 (b) be, and it hereby is , amended so as to read as follows "(b) Limitations Exterior plastics veneer which meets the requirements for noncom- bustibility as defined in Section 415 shall be unlimited as to height and length of veneered area except as limited by Section 3001 (d) ana 3005 (c) All other approved plastic materials shall conform to the following provis ,U—ns 1 Height The approved veneer shall not be attached to any exterior wall above 50 feet 2 Area Sections of plastic veneer shall not exceed 300 square feet in area " CC That Appendix Section 1507 be, and it hereby is, amended so as to read as follows "SCOPE Sec 1507 The provisions of this Chapter shall apply exclusively to agri- cultural buildings Such build- -12- ings shall be classified as a Group M, Division 3 Occupancy and shall include the following uses 1 Storage, livestock and poultry 2 Milking barns 3 Shade structures 4 Horticultural structures (green- house and crop protection) " DO That Appendix Section 1510 be, and it hereby is, amended so as to read as follows "EXTERIOR WALLS AND OPENINGS Sec 1510 Except where Table No 17-A requires greater protection, exterior walls of agricultural buildings located in Fire Zone No 3 shall be not less than one-hour fire-resistive con- struction when less than 20 feet from property line Openings in exterior walls of agricultural buildings which are less than 20 feet from property lines shall be protected by fire assemblies having a fire-protec- tion rating of not less than three- fourths-hour " EE Tnat Table No 15-A be, and it hereby is, amended by the deletion from the title thereof of any reference to Fire Zone No 3 FF That the Index to the Uniform Building Code, 1976 Edition, be, and it hereby is, amended by the deletion therefrom of any reference to Fire Zone Introduced, considered favorably on first reading, and ordered pub- lished this 6th day of February, A D 19799 OT to be presented for final passage on the 20th day of February, A D 9.79 A ST i)yor City Clerk -13- Passed and adopted on final reading this 20th day of February, A D 1979 ' J hia ATT T City Clerk -14-