Ordinance No. 19593 - Laserfiche WebLink

Home Browse Search

b, The existing structure is not remodeled, in any single calendar year, tv the extent of more than 25 per- cent of its market value immediately prior to remodeling. At such time as an existing structure other than a Group R occupancy is deemed by the building official to present a life or safety hazard to its occupants or is remodeled to the extent of more than 25 percent of its market value, an approved automatic fire extinguishing system shall be installed throughout, including the base- ment. 3. Existing Group R occupancies shall comply with sub- section 1, above except that Group R occupancies in substan- tial compliance with all present codes, and equipped with smokeproof towers, combination standpipes, and supervised fire alarms with manual pull stations, upon recommendation of the fire marshal and approval of the Structural Specialty Code Board of Appeals, may be permitted to install a less extensive sprinkling system, protecting only the exit system of the building, in lieu of the other requirements of this section. The exit protection system must include automatic s rinklers ~n all exit w p ays, an automatic sprinkler head in each indivi- dual living unit, and a nationally recognized testing labora- tory-approved battery or electrically operated smoke detector ~n each living unit. Sprinkler heads within living units shall be located no closer than four ~4} and no further than six ~fi} feet from the corridor door, Side wall mounted s rink- ler heads ma be • p y used w~th~n living units ~f the spray from such heads will completely cover the door area to be rotected. 25 Section 10.311 ~ p ~ } of the Uniform Fire Code ~s amended to add: ~f} Location of Combination Stand i e S stem. A combination standpipe shall be provided for each stairway or smoke- roof enclo- p sure which extends from the top floor to the ground story in buildings four or more stories in height. Combinative stand i e s stems shall have p p Y outlets so located that all portions of the building and all rooms and other spaces are within 20 feet of the nozzle attached to 100 feet of hose. ~1} Size, Combination standpipe systems shall be not less than four inches in diameter in buildings in which the highest outlet is less than l5 feet from the fire de artment connection ~ ~ p, and shall be not less than six inches ~n diameter where the highest outlet is 15 feet or more above that connec- tion. ~2} Construction and Testin . Fittings and connections shall be of sufficient strength to withstand 300 pounds of water pressure per+square inch when ready for service. All comb~nat~on standpipes shall be tested hydrostatically to with- stand such pressure far two hours, but in no case shal] the pressure be less than 50 pounds per square inch above the maximum working pressure. ~3} Riser shut-off valve and drain. Each individual riser shall be equipped with an OS and Y val ve at its base and an approved valve for draining. ~4} Fire de artment connections, All four-inch combina- Ordinance - 11