The URL can be used to link to this page

Home My WebLink AboutBUILDING CODE - 96-00009 - Cal Ranch Stores - AdditionNILE L. BL YOR ROSE 13AGLEY, CLERK RICHARD HORNSR, TREASURER DATE TO a NAME COMPANY -6 FAX # : PHONE # Is STATE OF 0 FAX TRANSMITTAL SHEET 12 NORTH CENTER STREET RBUR, JDAHO 83440 PHONE 0S) 359-3020 � PA MWNCO 6 P a sox 280 RExBuRc, IDAHO e3440 FAX # (208) 359-3022 PHONE # (208) 353--3020� I�� ► .. Please forward this Addj'.,tl'.onal message i l the above named id. THIS IS PAGE 1 DF 4irr PAGES OL .004W dpo //00 //4Cohm -10 40 5PIPON - OW 40e oe4ej do Of coo - me, -C. Al 4;2!7� /0 timed p r- -- YGN_GG tsi.avY�D/ Flo r tea. �vh . - -- --- -- -- 0,110 - --- - ---- - --- C., rp.P.. ov 1p ----- —� �– -. __. dP�"�-----Sym. •_ — �rp6�t� _ TOr---A-1K� .---- .. 40.4007 a- INTERIOR R00M NOT ACCESS i BLE o -FROM THE OUTSIDE FOR i= i E FIGHTING AND RESCUE OPERATiONS BY THE EIRE DEPAHTMENT WITH WINDOWS FIGURE -1 AERIC E WALLS WITH WINDOWS 1. in answer to your first question, floors which dc M not have accessibly wall openings as Specified it Section 904.2,2, Item 1, waudd be required to be equipped wits, an automatic sprinkles system. In essence, the provisions ars twofold in that fist a certain area or openings is required, and second, such openings shall he accessible to the fire depart_ mQnt from the exterior and not obstructed such that firefighting or rescue cannot be accomplished through such openings in the exterior waif. One exaggerated exam pfe of this would be a buildl'ng which is required to have exterior openings on one side, and the side chosen by the designer is landlocked or di- rectly adjacent to a severe slops from which Rrefighting or res- cue would not be possible. The determination of accessibility would rest with the enforcement official charged with adminis- tering thi's section of the code. Enforcement guidelines in this regard should be deveioped by each Jurisdiction based on their professional judgement and their equipment capabilities. 2. The Provisions of $ectian 904.2.2, Item I. do not extend beyond the exterior wall dine into the building and, therefore, do not dictate specific openings for interior partition arrange- ments. The drafters of the provisions felt that the normal open- ings p�ovided through interior partitions for function of the op- eration provided sufficient accessibility to all interior portions at the building, In the diagram, an opening in the exterior walk into on e of the offices would provide access to the interiar since the office area would have doors to the corridor system. Provi- sions of Section 904.2.2, Stem T, therefore, only dictate installa- tion or an automatic sprinkler system when openings are not provided within the exterior walls as specified in that section. Section 904.2.7 904-2.7 Group M occupancies. An automatic spnn YS M shail be installed in retail sales molns classed as Group M OCCU arl. cies where the Poor area excel 12,000 squam feet (1115") on my, any floor or , COO square 23on all floor or in Group M reta4l sales occupancies n -lore than threestorics in hUighL c area of mezzanines shall be *ncluded in deterrmning the areas where spnmkJers are wired, W49 QWe would appreciate your interpretation ofSection ■ 904,2.7 wi th regard to a one-story retail grocery store raving a floor area of 17, 0 00 square feet (Z 575 m:?). The rear portion is a receiving area with a ral [-up door only dna win- daws). The overall story depth is 125 feet (38 100 mm). A■ In response to your question, Section 904.2.7 re- quires that an automatic sprinkler system be in- s#ailed in retail saes roams classifiec! as Groep M Occupancies where the floor area exceeds 12,,000 square feet (I 115 m2-) on any one floor. If the grocery store to which you refer contains a retail saps ream dr' 17,0QQ square feet (1579 M2), an autvmat- ic Sprinkler system would be required. itis also possible that a sprinkier system may be required un- der Sect ion 9 04.2. 2, item i . I€ tie openings donot comply with this section or are not accessible to the extent that firefightingng or rescue cannot be accomplished from the exterior, sprinklers would be required. Since the openings are intended primarily for fire department use to rescue ordire-suppression operations, we suggest that the fire department be contacted when. there is any question regarding the accessibility of these openings. Q■ There are two questions regarding the application of ■ Section 904.2.7 about which we would like you to comment. our first question is whether or not the allowable area increases specified in Section 505 are permitted to be used to increase the 12,000- or24,000--Square-loot (1115 mor2230 m2) figureswithin the provision_ dor example, would a Group A+�1 retail 5aies room provided with two 60 -mo ,wide X18 288 mm) yard's be permitted to have an area of IS ,C�pii square feet (1 X72 m�) i.e., 12,000 square test (1115 m�j plus a 50 percent increase] before an automatic sprinkler system would have tc be installed? The second question we have arises as a resuit of the etian of the phrase contained in the 1976 edition, which stated, ". however, the area and height increases specified in Sections 505 and 506 shall be permitted." Was the deletion of this phrase intended to imply that a building Provided with a corr:- plete automatic sprinkler system is not permitted the appropri- ate area or height increases listed in Sections ,5Q,5- and 506 if a portion of the system is required under the previsions of Section 904.2.7? ■ The section in question states that an automatic �+ sprinkler system is required ". n etail sales rooms classed as Group !vi Occupancies where the floor area exceeds 12,000 square feet (1115 m2} on any door or 24,Qo0 square fejt (2 230 �� on al floors ...." The 12,000 -square -foot (1115 m2) or m2) �4,OOa-square-foot (2230 mz) floor area limitations ars ab- solute limitations and may not be increased for any reason. In you r example, the presence of two. 60400t (18 2 8$ mm) yards vrrou Id not alter rhe req Uirem ents o#Sectio y 9 04.2.7. The re#ai I sales rvOm would require an automatic sprinkler system when the Boor area exceeds 12,000 square feet (1 ] 15 m2). The deietion oithe referenced phrase was not intended to im- piy that area or height iRcr�ase� perm�t�ed by Section 505 or 506 could not be used. The increases permitted under Section 505.3 for the purpose of determining the allowable floor area and the increase in story height as provided by Section 506 are perm issible, provided the sprinklet'system is installed through- out the building, The following example may further clarify the application: IVEN, .A one -Story Gr M 0ccupancy building area of 26f4OO square feet. 2.5,000 square feet of which i's retail sales room, square feet of offices. 000 square t'eet Of storage., and 400 2. Two side yards of bQ feet in width are avaI � able. 4.? Such meas are used exctusiwe�y for such equipment; and ' APPLICATION OF SECTION 904.2.7-, `- The 25,0QQ square feet of a retail sales room in a Croup �! �.� �n approved automatic smoke -detection system is in. C�ccupar�cy, being more than 12,0QQ square feet permitted by stalled in such areas and is supervised by an approved the section, mt��t �e s�rir�klered. Qn� thousands �uar� feet of - Ce��ral, Progrietary or remote station service or a local space need not be sprig- � alarm which will give ars audible signal atacons tan tiyat. Storage and 400 square feet of office spa�Clered. tended Iocativn; and JUSTIFY FLOUR AREA BY TABU S -B: 44 Other approved fire -protection equipment such as porta_ It wi1l be noted that either a Type III One-hour, Type 11 � bie firs extir�gu�shers or Class II standpipes are installed One-hour or Type IV heavy -limber b�ifdi�g would be required in such areas. to justify the floor area of 2 6,400 square feet (18,000 x 1.5 = S. Qther approved automatic fire-ex6nguishing systems mai be AL 27,0O0 square feet allowable). 1f, however, the building were � Installed to protect special hazards or occupancies in lieu �f auto, completely sprinklered, inciuding the 7, 00 square feet of stor- I uratic s�rinkiers. age and 400 square deet of office space, a Tyke V nonrated ' building would satisfy this requirement {8,00a square feet x 1.5 J , x3 = 3b,DDD square feet aliowabie}. In this case, the sprinklers� Dues U.B. C. Sectivn sQ4.4, �t�m Y, aliow the amis- � are being used to justify the floorarea since the bu'lding _ � � ■ sign a� sprinlciers �rorn moms contain�n h' - is com g Ig�-volt pletely equipped with an automatic sprinkler System. age efectrical contras equipment? For St: 7 foot = 304-8 mm, 1 square foot =x.4929 rn2. An No. Theinter�t of U.B.C. Section 9Q4.4 was clarifiedSeCtion 904.4 with regard to electrical eaul-oment in the 1 Qq1 r 1W 904A Peri issible Spn'nkler Omissions. Subject to the approval f the building oel"l and with t.he concurrence of the chief of the fire department, Sprinklers may be omittedit rooms or areas as fol- lows: . When sprinklers are considered undesirable because of the na� tore of the contents or in rooms or areas which are of noncombus- tible construcfion with wholly noncombustible contents and which are not exposed by other meas. Spi-inklers shall not be omitted from any room m r lno v because itis damp, of fire-resisti ve construction or contains electrical equl"Pmenr. `. Sprinklers shall not be Installed when the application water or flame and water t cents ma ontitute a seiious 11 e or fire hazard, as in the manufacture or storage of quanfities of aluml.0 num powder, calcium olds, calcium phosphide, metallic sodium i and cesiumi, quicklime., magnesium powder and sodium perox- idelb F Safe deposit or other vaults Of fire-resistiveconstruction, when used for the storage of records, fibs and other when tr i metal cabineLs. * Communication equipment areas under the exclusive control of a public communication utilityagency,provided: 4.1 The equipment areas are separated from the remainder the building by one-hour fire�resistive occupancvr � tion; and form .wilding Code. The new text a I I ows the om I r on of sp ri'n - klers. as 1 When sprinklers ars considered undesirabde because of the nature of the contents or In rooms or aCeaS WhjCh are of noncombustible construction with wholly noncornbus- t:bye contents and which are not exposed by other areas. Sprinkler5 shall not be omitted from any room merely be- cause it is damp, of fire resistive construction or contains electrical equipment. High-woltage elertricai equipment can be expected to be de- energ zed by overcurrent protection devices immediately upon the appiication of sprinHer water, thereby eliminating tie elec- trical hazard. If the concern relates to a potential accidental dis- charge or leakage, we suggest the use of ars auxiliary preactioR valve which maintains system piping dry in the protected areas until asmoke-detection system senses smoke in the area. Water would then fie released Ie the piping, but would not be dis- charged until adequate heat is present to fuse a sprinkler. Such a system is relatively fail-safe with respect to accidental dis- charge and ieakage and meets code requirements dor automatic firs -extinguishing system protection. Item I in Section 9Q4_4 is intended to give the building offi- cial and the chief some latitude in requiring sprinklers if a de- signer Can demonstrate, based on testing or other satisfactory methods, that application of sprinkler water cremes a signifi'- cant problem which warrants omission. 4 69 A