Automatic Sprinkler Systems Handbook Fourteenth Edition Edited by David R. Hague, P.E. Principal Fire Protection Engineer, NFPA Cha{d7 Rd.W1. cDfu2ff5y, dP.-Ef.130-43e0-8b7f-041dc4ddd530} Senior Fire Protection Engineer, NFPA With the complete text of the 2019 edition of NFPA® 13, Standard for the Installation of Sprinkler Systems NATIONAL FIRE PROTECTION ASSOCIATION The leading information and knowledge resource on fire, electrical and related hazards i EDUFIRE.IR BK-NFPA-13HB19-180218-FM.indd 1 11/2/18 2:13 PM EDUFIRE.IR Copyright 2018 National Fire Protection Association (NFPA®). Licensed, by agreement, for individual use and download on 12/20/2018 to New Haven University Of. No other reproduction or transmission in any form permitted without written permission of NFPA®. For inquiries or to report unauthorized use, contact [email protected]. This NFCSS All Access subscription expires on September 30, 2019. PDF Navigation Tips Find To find a word or term in the PDF: 1. 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Wildcard characters (* or ?) are not permitted in stemming searches. Stemming isn’t available if either Whole words only or Case-sensitive is selected. Links Links to other sections of the document are colored red. When you click on a link and are directed to another page, use the following keyboard shortcut to return to the original page: ALT + <left arrow> for PC; COMM{AN7Dd + <1lefct afrr2ow5> fdor -Mfa1c. 30-43e0-8b7f-041dc4ddd530} EDUFIRE.IR Features of the Automatic Sprinkler Systems Handbook, 2019 Edition The 2019 edition of the Automatic Sprinkler Systems Handbook contains the complete mandatory text of the 2019 edition of NFPA 13, Standard for the Installation of Sprinkler Systems, as well as expert commentary to assist users in their under- standing and application of the standard. In addition to the commentary text, this edition of the handbook also offers a Section 25.2 • Ceiling-Level Sprinkler Design Criteria in Combination with In-Rack Sprinklers 821 number of helpful features, which are described below. Sprinkler System Riser Assembly—Equipment Legend Sprinkler System & Building—Legend 684 Chapter 20 • General Requirements for Storage 1 Water supply 9 Piping (drop) down to in-rack sprinklers Shading indicates where text 2 System control valve 10 OS&Y control valve has chanegdeitdio fnro omf t thhee s ptarenvdiaoruds. ➤ (5) ftCoioorn nTacele s2at l0feo dmr siSnpuuartcfeaessc ieni nB t huwerhn fiiocnrhgm tC hihen a werxahpciocteshre itdsh teimcysa a torefer iBianulssi tlaadlrilene gdc oMinna sttthereur icsatpelsad,c eeex.ntteirnedlyed o ffo fri raen raedtdari-- 345 SMCyhaseintce kmd rv acaihnlve evcakl vvealve 11 111123 IBCnre-arilaninccgkh / foliirvneee rs(hspe)raindk lfeirre(s s)prinklers ((76)) VdCaeonrnttic–cetaralel aeptdiep dsep wcahcoaeossde o sav sue nrd deisefoirn l1ae0tde fdbt 2ys ( mN0a.F9llP m Aco2 )7m, 0pp3ra.orvtmideendt st hnaott i enx mceueldtiifnlogo 5r5 b ufti2l d(5in.1g sm th2)e i nch aarseeas. 678 FLFoeirceea ddl emwpaaaitnret rmtfoloe swnpt arcilnoaknrlmneersction 13 1145 RRoaockf ssutrpupcoturtr estructure ➤ Dtoe btaeitletedr evxishuibaliitzse h eeqlpu iupsmeresn t, are firestopped at each floor using materials equivalent to the floor construction. Such pipe chases shall contain no sources of ignition, piping shall be noncombustible, and pipe systems, and concepts. penetrations at each floor shall be properly sealed. (8) Exterior columns under 10 ft2 (0.9 m2) in area formed by studs or wood joists, supporting exterior canopies that are fully protected with a sprinkler system. 12 Ctoom dmisteinngtauriys hte ixt tf rios mco tlohree tde xbtl uoef ➤ (Sth9ue)b sdeCecsatiigvonint iae2r0se .a7w .b2iet hlcisaitnus s uneni ntshepe rt ilyanpckekls eo orfe fc dco omwnbacuellas tsleipbdai lcistpeys ai.cne tsh teh caot nasrter uncottio rne qouf itrhede ctoo nacdedarleedss stphaec ein lcimreiatss et hine 7 8 8 9 15 13 probability that a fire will move through the concealed space. In those cases, the existence of combustible the standard. mcoantceeriranl st,o s ruecqhu iarse taedledpithioonnael /scporminpkuletre pr rwotireec, tdiorna.in pipes, or other materials, is typically not a sufficient 6 5 4 3 10 14 2 1 CLOSER LOOK [20.7] Unsprinklered Combustible Concealed Spaces The 3000 ft2 (280 m2) design area is intended to be applied Closer Look features provide In an ordinary hazard occupancy with a 60-minute water supply aofft ecra alcllu tlhaeti oonth, ewr hadicjhu smtmeeanntss rtehqaut iuresde rbsy s thhoeu dlden psiitcyk/ atrheeai rm peothinotds Note: In-rack sprinkler portion contains more than 20 sprinklers but only occupies portion of area protected by ceiling system. further information on selected ➤ dcounracteioalne dr esqpuaicree mbeetnwt eaennd thhea vfiinrsgt aannd u snescpornindk flleoroerds , ctohme bapupstliibcale- wthiese ilnyi ftriaolm p tohinet d, eunsseirtsy /caarnea c counrsveersv. eB yw salitdeirn gan udp mthaek ceu rtvhees styos pteicmk EXHIBIT 25.3 In-Rack Sprinklers Occupying Only Portion of Area Protected by Ceiling Sprinklers. (Courtesy of Stephan Laforest) FAQs provide detailed answers tion of the 3000 ft2 (280 m2) design area is required. In this case, the design more efficient. topics from the standard. df2sptbalhpr0oereeoea.sto7a wvcirge. eis1rIedxne f .e 1iwea qstan,ndhtu oreu d eeiutnbrn haeldtcydl edheef r osoe 2 bfosor i0per n sf.tst e7 hchtrttc. eehehe1aoiqe .eln2fnsiu l ntpd.odu ihgrr Io nefiis frn rsbeldd tokpsceh ollaortleaeioornnnbr w dbhdk bsc alu yfeetofossihl rlm otud3eeaeor0di pmntfr10 hllsgceo-0 hoo ftow lweonfmortolu eo2ysbbu rr rl(s oueals2dfe btsi8or hpft eo0nfit ab hutotrrmhlharatee e etts 2ase c)itbcfsf sooifartru eenatrssichiatn cled tpteecas eir tea nncoshil ndgo evreta . dnih sdhtdc eeiesenee cpdicagsogao il nghebcanddnteys-, uEsoommspuScrsoo ifeFcnsfvvucRiugceeip Tpfi iestathcptphhnhnaerrertercl io lo n3iyssdeuus0ak esdgefgl0,ene deh0hirtss t ysib iftasg uityyfsy 2nca/ c sshahc(eot2uret dimaeog8cm a0hrhtcbso s o lmu ym.s i ndnps Becut2e r)iteetinb ahnhcadlllokiea elekewldu seeddc,siirl gtoe eyssshnson p aitC cgfahinaietMrcnard eaede tS sla, aoes Aarit idteen ia lsi faal psis s r nnhpptaetodooalas i wsvt recd auEeesaoegmS .p usoaeFEpuelln R vdalfdwly fe yni s bnict tdtphtioe heo ria wf in Cctna s taaoMdtkp hrnfldrefoSeeiitihrnArrrtrescoieok o eal ludaalne nestrriradddoeeesl kb((lo11een.8pr2sg1t ,miDTR5c tsl uh)aooik mdecoosgi kenr)unesds nlac l aaodletwt itanufe redtlterdhueris nerete.b e g f Vulcsso otitoperhlw rnadssetceesiii mmnctrerr iga aueuafl nosjcl coam drtowter elaieidutadnnmy ms t oa e oobfufnrvfue mts soertl,hlstre myeb aedwe la aiifllatrnei er wtvrsjeedeote i rt lridr8ueesattsiv mtchfcstekst ,ae lo ,s(lsa n.wf 2 nt aRa.e7hd4nnad½i ddcct mh wh kvfhe) stemio towcn(hri2entin eizi.t lri3lhcoamei enetn mi3nirgotzm½at).neel. d o rflSm otcft ih(ouoem1euvrm uempecbrllfoas)efe n etswraevc stdaite d tt dnohtaeeafteu i wsce otithxognioettmnaphedles ra6 i drttoo oaei rfncf d roc.kw ao(rrsc1aa n 4kla5cdl0n k0sim t0ds wmi 0 oea4e nmmn lrsfbde)-t. toof tqhuee NstFioPnAs 1 c3o smtamffo.nly asked cealed space is necessary for the 1-hour rating of the floor/ceiling sprinklers that might open. ➤ slave pallets were used in the main central rack in the 4 ft (1.2 m) aisle tests. Conventional assembly, the design area would apply to the system on the second If 9.2.1 does not specifically allow sprinklers to be omitted racks and conventional pallets were used in the main central rack in the 8 ft (2.4 m) aisle tests. 506 Cha{pter7 17 • Indstallatio1n Requicrementfs for2 Hangin5g and Sdupport o-f Syfstem1 Piping30-43e0-8bfolof tohr,e b seu7csapuesned tehfde c een-iltinirge 0tfoir eth-ree stios4ptiv oef athssee 1fmlobolry s (lafrdbo)m w othueld cb noottto bme4 ftrifoym od ma citotinncged asplerdin skpleadrcse f, rtohmen 5t hSeocstei ocno3 n2c0e.7a lceadn0 snpoatc bees .}u Tsheed dtoes jiugsn- The Tmhaejo treistyt coofn tfhigeu treasttiso wn eforer sctoonrdaguec thedei gwhittsh o1f0 105 f tf2t ((94..36 mm2)), s2p0r ifnt k(6le.1r smpa),c ainngd. 25 ft (7.6 m) Section 4.5 • System Protection Area Limitations 101 between the concealed space and the area protected by the sec- area cannot be increased to 3000 ft2 (280 m2) while sprinklers are covered an 1800 ft2 (167.2 m2) floor area, including aisles between racks. Tests that were used Slots in the angle iron are a common way to attach the hangers to the angle iron trapeze member. This ond floor sprinkler system. omitted from a concealed space that is not addressed by 9.2.1. iann tpicroipdautceidn gin t hthise ssttaannddaarrdd liism 6i0te0d0 ffitr2e ( d5a5m5 amg2e) ,t oth teh iusp apreera l.i Tmhite omf athxeim duemsig wn actuerrv deasm.age area 4.5.3 Where single systems protect extra hazard, high-piled storage, or storage covered by FAQ [4.5.3] aignlulgoid wmesla ifntoeerrs if alaelr xefir bopimrliot vyt ihidnee w da ontorgk lrieen sgitr rowincitt httoh t ehc erse iszatetre ua cntthdue rn esu lamontbd we nriol ol mfr esindloautlcs ve ian rt ihaaneti oalonnasgd lte hc aiartop cnao.c uitlyd eoxf itsht.e H mowemevbeer,r r. eTmheosve- krelderu coTtphioeern at etiisso tg nda aaintraee dsrhe idonwu tch etehd aa. trT,e ahase o ddfe afntiarse iat dylsa oims iianngdceirc eaaantsede tdshp,a rbti,on wtkhli etthhr eos pperexirtnaektniltoe ronsfs if(niers.etga .dl,l aewmda aitnegr et hdaean mdra ascgpkersi),n. a- ocshothavelelrr naNogFte ePsxAhca elslet dann o5dt2 ae,r0xd0cs0e, e afdtn2 dt(h 4eo8 rf3dl0oin omarr 2ya)r. eoar slipgehcti fhieadz afrodr athreaat sh, atzhaer de xatnrda thhaez atordta lo ra rsetao rcaogvee raargeae Wemxihtxreeard eh wahziigtahhr d-lip goihlcectd uh psatazonarrcadige oes r ao rre ➤ DESIGNER’S CORNER [17.3] 20.8 Room Design Method . test sTearbielse fCo.r9 s tiollruasgtera hteesi gthhte soef 2p0o ifntt s(6. .T1h me )i nufsoinrmg athtieo nst asnhdoawrnd cino mthme otadbitlye. is taken from the EVXalHvIeB fIoTr 2 In5-.4R aScke cStpiorninakll eCrosn. troNl t4h.e5 .r4a ckTsh,e i nacreluad pinrogt eacisteleds ,b rye ag asridnlgelses i onf- rtahcek n suymstbemer ionfc lleuvdeelss aolfl ionf- trhaec kf lsoporri nakrelear os.c cupied by oifttr 2ad (ci3nc7ea2pr0yt a mhba2lze) a ptroedr e ofxlcocceouerp?da 4n0c,i0e0s,0 i s S4bmh0ee o mssuitzlbedeeed rtl h otpeori pthsheuae pn t6pgr aeoinprrs.te (zst1hue5 ep0m p 3moe irmmnt.i)b n (Seg8cr0 ht hsmehedm ou3wl) ei nnS 1. c 0h(in8 es 0pdt rumhilneem k i4l)le l0Sur csmthtrraeaapditneiuo?zlnee t1furr3soae,mp ienh CNz awoenFn PghmfAeiuc resh1sim 3 ots nhobu enfeof irnrtc uh iitenlehen isstst u hwitbsoesej eurseeceuxt p,nsa tmpmoeotmap rnstlsoe y tf . drhcoSleeemi snaliog rcp. aenrWd eet rvihtsoih oefa urnatesh d leea wi dcn3ekist r tieoiaon lfnl. t esgw(r 8uoso0 ifwd NsamouFnumPcclAdhe) cAa2rs0.e 2.at80ht.e.e18s .* c1t ah lTeTc hughelriaes wt aistoauetnbse tsr pe dsrceuotmpidopuanlcny ead srl.le otqhwuesi r gefomrer eacntaetlssct fu ohlary tsdiporarniu nolkifcl te hrdese omspnarlnyind sk hlaeamrllso binneg bt hsaees leledacr tugipoeosntn or tofh oerm oroo, mosoms l toahnnagdt Automatic Sprinkler Systems Handbook 2019 ➤ N 4c4o..55m..45m. 1oT nMh weu amlltlia(pxsl)iem sbhuuamilll d sbiynes gtpese mramt staiitzcteeh des dht oab lbly ec cosamunppoplpylii eewsd,i tbchyo 4va.e 5sr.ie1nd.g lber efierzee swpariynsk, lecro mrismero.n roofs, or a Abao(h3rrao .es 7zrtiaahna mscr g odka)lre nsahd tdsriioegny srashaoatsr gelo yicmder ao -tng prht rhlihaeilgeataa tdhvpt ep,ter pror ha oatta hetclzlecaoeactnvtrstide zs 1er e2axd gtf,rt ea If the “cookbook” approach to using trapeze hangers as laid out in hangers for each trapeze member, they calculated that the total Where acceptable to the local authority having jurisdiction, multiple detached buildings can be protected area of up to 52,000 ft2 (4830 m2), Section 17.3 is used, the hangers supporting the trapeze member capacity of the trapeze would still be sufficient to carry the load with a single sprinkler system. In instances where no water supply is located close by, it would be feasible as indicated by 4.5.3. However, smtmwohiaa oltlin hunsueul.d fS pa6 ibpcn ietoncu eri. rnt (et 1dthrh5i etve0o ih dl mcoauoanmandglln) eyo epr fs c ciitpztoh eetmeod, 6a p tt hooicne ons. meu3(1np ip5ntpso0.o nw(mr8eti0 lmntl hmtn) e io(ms wt6 n )b ai etnteree. a pdr(p1-hefe5iydlz0ls eei fmcdr moa)m lmmelym) aaasibp tnhtera.a irMncn thkghaelneeadtrr- obpothfnulu eeitls hd t ore2iafn 5 ptgs0hep ezrrlebie ntq rmk(au1lpeie1rerme5 zmm ebk eegasnrui)n .tpm ,sW p bifgohouhrertt tn s ot n htnthohilsatye nbw ts ehtapo esar itbnwdhlkoeeel n eitogoerth hmsateu saorp ,ia fnpt nht oh iesree t tx m wttsheyuoensc htshleoiao mancndlg o peoosireffps rtt i fnhhotgoeer 2019 Automatic Sprinkler Systems Handbook BK-NFNfPoA-1o3lHlnBo19m-w1802sa18 -nCihtpd2s5.i nacddt o 8o2r1rrye sApnonnedxi nCg m maatenrdiaal- 17/1tisccn0opaa/g1 rnrs8 i. udn aI n pekl1l al2pose:lulw2ery2 cr s stthAyhhhM sceeitpa e ssssmpp,e rras.ii ,nnnE tdkkxhlal eeesmi rrbmsspe tiilnsloeat sr aba smeldtm eesiguratnahlplca tpaht liideinvejdecad l cibu sbedu ntyeio tlad epb isnxouptgrirelti dnanbibdkynl l geeethsx rc. et slIe yanwnss tsdsaeurtiomnecorgh ims ntcuha sape,s npe ss mlsapy,d rataijhlnanle ckda ell ueopnxrcrt ios albiyvla usiardtiyueled tmb hitnuh ofgierrl.odi tbCmiynua h grialeadsn vsia nahinsgdosg ojuwa cjlcudiitear hbnits eetidtd bsit c auwotkiiwiloetdnnnh- nmhcoacoig2lct)lhy uom -pdfpT oaethihlrnseeeiacdg 4itte n h0scsetao,.0o dnv0r eaf40org0 afre,t g0e2 oe 0x( 3r0ta r7h rafe2ty 2ha0d ( a r3cmaza7au2n2r)l di0b- e ufacturers are aware of this requirement and make correct connec- sprinkler main if they are sized for sharing the load between the when the two buildings involved do not have the same ownership or the fire protection is not under the maximum extra hazard coverage tions for these situations.Hangers in question tathwnedo hsBTuaroanp cgpfiienoxrgr stt shcf hooisarf ntsthihgteeue dtatrt ratiaophpneee, z rzetue.hl eebs e Ti nesc itzhhenedi c 2ian0ld 0C7ivo iedmdumiatiloiltynt e tteoo osruenqp Hupioarenrt g tthinhaget BK-NFPA-13HB19-180218-Chp20.indd 684 10/10/18 9:11 PM tory text in the standard. cciadoonennnnttutrrnioofcyll i ovawaft hliavoi escnihs nd iganerlv eeai acnpse ae sorm tsry ube. crSuhguil eacdnhsinc ssygti rtssou iatbaurteeiaso te nrixoaspnt che. aerAniren tnrohectasihunnelg tmr iwcnuoa lintmtiespiprldfealeo ilrrowmact. aieTolnh nati slssa hctrhmaoanu tb lb dgee olb la sue.c ncthkonem oapwblinislih toyer d od fwe alialtayhrs mv inis d iabeclvecie caselsasirn tmgo asrttehhyreqsaetatu ep hifmrooaetrsvme heinsey ts ndciiamotrlsan ie uflsaxoliirsircs t fstaeistrlno eltyt or l adwo ugeaisetdsehi iag n ttrnhgheee.ea dI s f sprinkler main. This approach is the most conservative and will ordinary or light hazard areas for work for all circumstances, as long as connections to the trapeze 4.5.6* Detached Buildings. storage in the future, use of the memUbenrd weril tl hsuep ppeorfrot rtmhea gnrceea-tbear sleodad o, pwthioicnh o tfh 1e7y.1 n.2o,w p rdoof.essional Designer’s Corner features A.4.5.6 Buildings adjacent to a primary structure can be protected by extending the fire sprin- (lo3w72e0r smy2s)t eams t haere aal loofw 4a0b,0le0 0 ft2 3 in. trapeze member esinzgedin eteor ss ucpopuoldr t stoilnl lyd etshigen t raa pterazpee zmee wmibthe r hiaf ntgheerys tpheartf oarrme ➤ provide insight into sprinkler ksplerrin skylestre smy sftreomm f othre s mpraimll aaruyx isltiraurcyt ubruei.l dTinhgiss .e Iltiemminsa ttheas t tshheo nuelde db eto c opnrosvidideree da bseepfoarrea tefi nfairle- saypspteromp rpiarotete.ction area would be 6 in. sprinkler main tahdee qcuaalctue lsautipopnos rtto o vperroavlle t oth tahte tshper inhkalnegr emr aainss. eTmhibs lcya lpcruolvaitdioens system design and installation. “N” icons indicate a section, i(z1i)n gA fcirteu aslp prihnyksliecra dl edsiisgtann scheo bueldtw ineecnlu addej athcee nfot lsltorwucitnugr:e s Schedule 40 Trapeze Hanger. wcoomupldl yn wotit hb eN dFPifAfi c1u3l.t for a structural engineer and would still figure, or table that is new for ((23)) PSoqtueanrtei aflo footar gthee o pf rbooptehr ttyh et op rbiem saprlyit a inndto a suexpialiraartye sptarurccetulsr easnd sold separately this edition of the standard. (4) Difficulties in providing a separate water supply to the auxiliary structure (5) Occupancy/hazard of the auxiliary structure 17.4 * Installation of Pipe Hangers . (6) Aflobwili tiys oorfi geimnaetrignegncy response personnel to easily identify the structure from which water- A.17.4 To enhance permanence, proper hanger installation is important. Installation Nonmandatory Annex A material 4.5.6.1 Unless the requirements of 4.5.6.2 apply, detached buildings, regardless of separation dis- phraoncgeedru arsesse mshboliuelsd amree settr aiingdhut,s tpreyr psetannddicaurdlasr toof tphrea pctiipcee, uannidf ocrmralfyts mloacnatsehdip, .a nFdo sr neuxga tmo ptlhee, ➤ follows its corresponding t4a.n5c.6e.,2 t hWat dhoen n oatc mceepetta tbhlee ctroit etrhiea oafu 4th.5o.r4i tsyh ahlal vbien gp rojuvriidseddic wtiiothn ,s edpeataracthee fdir es tsrpurcitnukrleesr ssyhsatlelm bse. structure with fasteners fully engaged. mandatory text in the standard. permitted to be supplied by the fire sprinkler system of an adjacent building. 17.4.1 General. Ask the AHJ features provide ASK THE AHJ FAberAe uQ ttoi lgi[zg1el7de .hi4na. 1gny.g1pe.sr2su] mpe wrmaliltbteoda rtdo 11in77d..44ep..11e..n11d .1eC*ne tliUyli nnolgfe stShsh eteh caeet irhleiiqnnuggi .rsehmeaetnhtisn go.f 17.4.1.1.2 are met, sprinkler piping shall be supported authinosriigtihets ihnatovi nqgu ejustriiosdnisc tthioant ➤ ? WsFprohrmiyn w kthloeeur slsdtya santned mpauo?tinhto orift ayn h aauvtinhogr jiutyr ihsdavicintigo nju hriasdveic ctioonnc, ethrnes p arbimoaurty m puroltbiplelme b wuiitlhd imnguslt iupslien bgu tihldei nsagms ues fiinrge ceilings? A.17.4.1.1.1 Fasteners used to support sprinkler system piping should not be attached to ceil- often have to answer. tbhueil dsainmge o swpnrienrk sletor psys smteamin toacincuinrgs itfh eea wcha tbeur islduipnpgl yis a onrd b tehceo bmueilsd oinwgns eadre b uyn ddieffre sreenpta roawten oewrsn. Ief rtshheip s,o itu brcee- Toggle hangers are not permitted ings of gypsum or other similar soft material. comes very difficult to enforce fire code maintenance requirements for the dependent building. If the author- foorr o utshee wr lietshs gsyupbssutamn twiaal ltlbypoeasrd o f 17.4.1.1.2 Toggle hangers shall be permitted only for the support of pipe 1½ in. (40 mm) or iotry ihmapvoinsgsi bjuleri sfodri ctthioe no walnloewrssh tihpe o uf sthee o ifn tdhiev iedxucael pbtuioilnd iinng 4s. 5to.6 s.2p,l iitt oshr wouhledr eb ele igna sl ietuaasetimonesn wts haerere r eitc iosr udnedlik.ely ceiling materials. smaller in size under ceilings of hollow tile or metal lath and plaster. 2019 Automatic Sprinkler Systems Handbook Automatic Sprinkler Systems Handbook 2019 BK-NFPA-13HB19-180218-Chp17.indd 506 30/10/18 11:46 AM BK-NFPA-13HB19-180218-Chp04.indd 101 24/10/18 8:25 PM EDUFIRE.IR Features of the Automatic Sprinkler Systems Handbook, 2019 Edition The 2019 edition of the Automatic Sprinkler Systems Handbook contains the complete mandatory text of the 2019 edition of NFPA 13, Standard for the Installation of Sprinkler Systems, as well as expert commentary to assist users in their under- standing and application of the standard. In addition to the commentary text, this edition of the handbook also offers a Section 25.2 • Ceiling-Level Sprinkler Design Criteria in Combination with In-Rack Sprinklers 821 number of helpful features, which are described below. Sprinkler System Riser Assembly—Equipment Legend Sprinkler System & Building—Legend 684 Chapter 20 • General Requirements for Storage 1 Water supply 9 Piping (drop) down to in-rack sprinklers Shading indicates where text 2 System control valve 10 OS&Y control valve has chanegdeitdio fnro omf t thhee s ptarenvdiaoruds. ➤ (5) ftCoioorn nTacele s2at l0feo dmr siSnpuuartcfeaessc ieni nB t huwerhn fiiocnrhgm tC hihen a werxahpciocteshre itdsh teimcysa a torefer iBianulssi tlaadlrilene gdc oMinna sttthereur icsatpelsad,c eeex.ntteirnedlyed o ffo fri raen raedtdari-- 345 SMCyhaseintce kmd rv acaihnlve evcakl vvealve 11 111123 IBCnre-arilaninccgkh / foliirvneee rs(hspe)raindk lfeirre(s s)prinklers ((76)) VdCaeonrnttic–cetaralel aeptdiep dsep wcahcoaeossde o sav sue nrd deisefoirn l1ae0tde fdbt 2ys ( mN0a.F9llP m Aco2 )7m, 0pp3ra.orvtmideendt st hnaott i enx mceueldtiifnlogo 5r5 b ufti2l d(5in.1g sm th2)e i nch aarseeas. 678 FLFoeirceea ddl emwpaaaitnret rmtfoloe swnpt arcilnoaknrlmneersction 13 1145 RRoaockf ssutrpupcoturtr estructure ➤ Dtoe btaeitletedr evxishuibaliitzse h eeqlpu iupsmeresn t, are firestopped at each floor using materials equivalent to the floor construction. Such pipe chases shall contain no sources of ignition, piping shall be noncombustible, and pipe systems, and concepts. penetrations at each floor shall be properly sealed. (8) Exterior columns under 10 ft2 (0.9 m2) in area formed by studs or wood joists, supporting exterior canopies that are fully protected with a sprinkler system. 12 Ctoom dmisteinngtauriys hte ixt tf rios mco tlohree tde xbtl uoef ➤ (Sth9ue)b sdeCecsatiigvonint iae2r0se .a7w .b2iet hlcisaitnus s uneni ntshepe rt ilyanpckekls eo orfe fc dco omwnbacuellas tsleipbdai lcistpeys ai.cne tsh teh caot nasrter uncottio rne qouf itrhede ctoo nacdedarleedss stphaec ein lcimreiatss et hine 7 8 8 9 15 13 probability that a fire will move through the concealed space. In those cases, the existence of combustible the standard. mcoantceeriranl st,o s ruecqhu iarse taedledpithioonnael /scporminpkuletre pr rwotireec, tdiorna.in pipes, or other materials, is typically not a sufficient 6 5 4 3 10 14 2 1 CLOSER LOOK [20.7] Unsprinklered Combustible Concealed Spaces The 3000 ft2 (280 m2) design area is intended to be applied Closer Look features provide In an ordinary hazard occupancy with a 60-minute water supply aofft ecra alcllu tlhaeti oonth, ewr hadicjhu smtmeeanntss rtehqaut iuresde rbsy s thhoeu dlden psiitcyk/ atrheeai rm peothinotds Note: In-rack sprinkler portion contains more than 20 sprinklers but only occupies portion of area protected by ceiling system. further information on selected ➤ dcounracteioalne dr esqpuaicree mbeetnwt eaennd thhea vfiinrsgt aannd u snescpornindk flleoroerds , ctohme bapupstliibcale- wthiese ilnyi ftriaolm p tohinet d, eunsseirtsy /caarnea c counrsveersv. eB yw salitdeirn gan udp mthaek ceu rtvhees styos pteicmk EXHIBIT 25.3 In-Rack Sprinklers Occupying Only Portion of Area Protected by Ceiling Sprinklers. (Courtesy of Stephan Laforest) FAQs provide detailed answers tion of the 3000 ft2 (280 m2) design area is required. In this case, the design more efficient. topics from the standard. df2sptbalhpr0oereeoea.sto7a wvcirge. eis1rIedxne f .e 1iwea qstan,ndhtu oreu d eeiutnbrn haeldtcydl edheef r osoe 2 bfosor i0per n sf.tst e7 hchtrttc. eehehe1aoiqe .eln2fnsiu l ntpd.odu ihgrr Io nefiis frn rsbeldd tokpsceh ollaortleaeioornnnbr w dbhdk bsc alu yfeetofossihl rlm otud3eeaeor0di pmntfr10 hllsgceo-0 hoo ftow lweonfmortolu eo2ysbbu rr rl(s oueals2dfe btsi8or hpft eo0nfit ab hutotrrmhlharatee e etts 2ase c)itbcfsf sooifartru eenatrssichiatn cled tpteecas eir tea nncoshil ndgo evreta . dnih sdhtdc eeiesenee cpdicagsogao il nghebcanddnteys-, uEsoommspuScrsoo ifeFcnsfvvucRiugceeip Tpfi iestathcptphhnhnaerrertercl io lo n3iyssdeuus0ak esdgefgl0,ene deh0hirtss t ysib iftasg uityyfsy 2nca/ c sshahc(eot2uret dimaeog8cm a0hrhtcbso s o lmu ym.s i ndnps Becut2e r)iteetinb ahnhcadlllokiea elekewldu seeddc,siirl gtoe eyssshnson p aitC cgfahinaietMrcnard eaede tS sla, aoes Aarit idteen ia lsi faal psis s r nnhpptaetodooalas i wsvt recd auEeesaoegmS .p usoaeFEpuelln R vdalfdwly fe yni s bnict tdtphtioe heo ria wf in Cctna s taaoMdtkp hrnfldrefoSeeiitihrnArrrtrescoieok o eal ludaalne nestrriradddoeeesl kb((lo11een.8pr2sg1t ,miDTR5c tsl uh)aooik mdecoosgi kenr)unesds nlac l aaodletwt itanufe redtlterdhueris nerete.b e g f Vulcsso otitoperhlw rnadssetceesiii mmnctrerr iga aueuafl nosjcl coam drtowter elaieidutadnnmy ms t oa e oobfufnrvfue mts soertl,hlstre myeb aedwe la aiifllatrnei er wtvrsjeedeote i rt lridr8ueesattsiv mtchfcstekst ,ae lo ,s(lsa n.wf 2 nt aRa.e7hd4nnad½i ddcct mh wh kvfhe) stemio towcn(hri2entin eizi.t lri3lhcoamei enetn mi3nirgotzm½at).neel. d o rflSm otcft ih(ouoem1euvrm uempecbrllfoas)efe n etswraevc stdaite d tt dnohtaeeafteu i wsce otithxognioettmnaphedles ra6 i drttoo oaei rfncf d roc.kw ao(rrsc1aa n 4kla5cdl0n k0sim t0ds wmi 0 oea4e nmmn lrsfbde)-t. toof tqhuee NstFioPnAs 1 c3o smtamffo.nly asked cealed space is necessary for the 1-hour rating of the floor/ceiling sprinklers that might open. ➤ slave pallets were used in the main central rack in the 4 ft (1.2 m) aisle tests. Conventional assembly, the design area would apply to the system on the second If 9.2.1 does not specifically allow sprinklers to be omitted racks and conventional pallets were used in the main central rack in the 8 ft (2.4 m) aisle tests. 506 Chapter 17 • Installation Requirements for Hanging and Support of System Piping foblofe ttohwr,e eb eseuncs atphueesne cd otehndec c eeeanilletinidrge s tfpoira etch-eree a stniosdpti v tohef e at hsaseree fmalo pborlryo s t(leafrcbot)em wd otbhuyel d tbh noeot tsto ebmce- ftarirfoeyma o cmaa cnitontinonctge b aseple irdnin cskrpeleaarcssee f,d rto htmoe n3 t 0hS0eo0cs tefit oc2n o(2 n28c00e.7 am lce2ad)n w snphoaitlc ebe sesp .u rTishneekd l detoress jiaugrsne- cTohvee Tmrehadej o a{tnrei st1yt 8 c7o0of0n t ffhitge2 u (t1rdea6stt7iso. 2wn mefor12er) scftlooonrodarcgu aecr teheade,i gwifnhicttslhu 2 o1df0i n10g5 f atf2it5 s ((l94e..s36 b mmetd2)w), s2epe0rn if ntr ak-(c6lek.1rs .fsm pTa)e,cs1 aitnsn gdth. 2a5t 3wfte (r7e. 6u sm0ed) -43e0 -8b7f-041dcSec4tion 4.5 d• Systedm Protedction Ar5ea Limit3ations 0101} Slots in the angle iron are a common way to attach the hangers to the angle iron trapeze member. This ond floor sprinkler system. omitted from a concealed space that is not addressed by 9.2.1. iann tpicroipdautceidn gin t hthise ssttaannddaarrdd liism 6i0te0d0 ffitr2e ( d5a5m5 amg2e) ,t oth teh iusp apreera l.i Tmhite omf athxeim duemsig wn actuerrv deasm.age area 4.5.3 Where single systems protect extra hazard, high-piled storage, or storage covered by FAQ [4.5.3] aignlulgoid wmesla ifntoeerrs if alaelr xefir bopimrliot vyt ihidnee w da ontorgk lrieen sgitr rowincitt httoh t ehc erse iszatetre ua cntthdue rn esu lamontbd we nriol ol mfr esindloautlcs ve ian rt ihaaneti oalonnasgd lte hc aiartop cnao.c uitlyd eoxf itsht.e H mowemevbeer,r r. eTmheosve- krelderu coTtphioeern at etiisso tg nda aaintraee dsrhe idonwu tch etehd aa. trT,e ahase o ddfe afntiarse iat dylsa oims iianngdceirc eaaantsede tdshp,a rbti,on wtkhli etthhr eos pperexirtnaektniltoe ronsfs if(niers.etga .dl,l aewmda aitnegr et hdaean mdra ascgpkersi),n. a- ocshothavelelrr naNogFte ePsxAhca elslet dann o5dt2 ae,r0xd0cs0e, e afdtn2 dt(h 4eo8 rf3dl0oin omarr 2ya)r. eoar slipgehcti fhieadz afrodr athreaat sh, atzhaer de xatnrda thhaez atordta lo ra rsetao rcaogvee raargeae Wemxihtxreeard eh wahziigtahhr d-lip goihlcectd uh psatazonarrcadige oes r ao rre ➤ DESIGNER’S CORNER [17.3] 20.8 Room Design Method . test sTearbielse fCo.r9 s tiollruasgtera hteesi gthhte soef 2p0o ifntt s(6. .T1h me )i nufsoinrmg athtieo nst asnhdoawrnd cino mthme otadbitlye. is taken from the EVXalHvIeB fIoTr 2 In5-.4R aScke cStpiorninakll eCrosn. troNl t4h.e5 .r4a ckTsh,e i nacreluad pinrogt eacisteleds ,b rye ag asridnlgelses i onf- rtahcek n suymstbemer ionfc lleuvdeelss aolfl ionf- trhaec kf lsoporri nakrelear os.c cupied by oifttr 2ad (ci3nc7ea2pr0yt a mhba2lze) a ptroedr e ofxlcocceouerp?da 4n0c,i0e0s,0 i s S4bmh0ee o mssuitzlbedeeed rtl h otpeori pthsheuae pn t6pgr aeoinprrs.te (zst1hue5 ep0m p 3moe irmmnt.i)b n (Seg8cr0 ht hsmehedm ou3wl) ei nnS 1. c 0h(in8 es 0pdt rumhilneem k i4l)le l0Sur csmthtrraeaapditneiuo?zlnee t1furr3soae,mp ienh CNz awoenFn PghmfAeiuc resh1sim 3 ots nhobu enfeof irnrtc uh iitenlehen isstst u hwitbsoesej eurseeceuxt p,nsa tmpmoeotmap rnstlsoe y tf . drhcoSleeemi snaliog rcp. aenrWd eet rvihtsoih oefa urnatesh d leea wi dcn3ekist r tieoiaon lfnl. t esgw(r 8uoso0 ifwd NsamouFnumPcclAdhe) cAa2rs0.e 2.at80ht.e.e18s .* c1t ah lTeTc hughelriaes wt aistoauetnbse tsr pe dsrceuotmpidopuanlcny ead srl.le otqhwuesi r gefomrer eacntaetlssct fu ohlary tsdiporarniu nolkifcl te hrdese omspnarlnyind sk hlaeamrllso binneg bt hsaees leledacr tugipoeosntn or tofh oerm oroo, mosoms l toahnnagdt Automatic Sprinkler Systems Handbook 2019 ➤ N 4c4o..55m..45m. 1oT nMh weu amlltlia(pxsl)iem sbhuuamilll d sbiynes gtpese mramt staiitzcteeh des dht oab lbly ec cosamunppoplpylii eewsd,i tbchyo 4va.e 5sr.ie1nd.g lber efierzee swpariynsk, lecro mrismero.n roofs, or a Abao(h3rrao .es 7zrtiaahna mscr g odka)lre nsahd tdsriioegny srashaoatsr gelo yicmder ao -tng prht rhlihaeilgeataa tdhvpt ep,ter pror ha oatta hetclzlecaoeactnvtrstide zs 1er e2axd gtf,rt ea If the “cookbook” approach to using trapeze hangers as laid out in hangers for each trapeze member, they calculated that the total Where acceptable to the local authority having jurisdiction, multiple detached buildings can be protected area of up to 52,000 ft2 (4830 m2), Section 17.3 is used, the hangers supporting the trapeze member capacity of the trapeze would still be sufficient to carry the load with a single sprinkler system. In instances where no water supply is located close by, it would be feasible as indicated by 4.5.3. However, smtmwohiaa oltlin hunsueul.d fS pa6 ibpcn ietoncu eri. rnt (et 1dthrh5i etve0o ih dl mcoauoanmandglln) eyo epr fs c ciitpztoh eetmeod, 6a p tt hooicne ons. meu3(1np ip5ntpso0.o nw(mr8eti0 lmntl hmtn) e io(ms wt6 n )b ai etnteree. a pdr(p1-hefe5iydlz0ls eei fmcdr moa)m lmmelym) aaasibp tnhtera.a irMncn thkghaelneeadtrr- obpothfnulu eeitls hd t ore2iafn 5 ptgs0hep ezrrlebie ntq rmk(au1lpeie1rerme5 zmm ebk eegasnrui)n .tpm ,sW p bifgohouhrertt tn s ot n htnthohilsatye nbw ts ehtapo esar itbnwdhlkoeeel n eitogoerth hmsateu saorp ,ia fnpt nht oh iesree t tx m wttsheyuoensc htshleoiao mancndlg o peoosireffps rtt i fnhhotgoeer 2019 Automatic Sprinkler Systems Handbook BK-NFNfPoA-1o3lHlnBo19m-w1802sa18 -nCihtpd2s5.i nacddt o 8o2r1rrye sApnonnedxi nCg m maatenrdiaal- 17/1tisccn0opaa/g1 rnrs8 i. udn aI n pekl1l al2pose:lulw2ery2 cr s stthAyhhhM sceeitpa e ssssmpp,e rras.ii ,nnnE tdkkxhlal eeesmi rrbmsspe tiilnsloeat sr aba smeldtm eesiguratnahlplca tpaht liideinvejdecad l cibu sbedu ntyeio tlad epb isnxouptgrirelti dnanbibdkynl l geeethsx rc. et slIe yanwnss tsdsaeurtiomnecorgh ims ntcuha sape,s npe ss mlsapy,d rataijhlnanle ckda ell ueopnxrcrt ios albiyvla usiardtiyueled tmb hitnuh ofgierrl.odi tbCmiynua h grialeadsn vsia nahinsgdosg ojuwa cjlcudiitear hbnits eetidtd bsit c auwotkiiwiloetdnnnh- nmhcoacoig2lct)lhy uom -pdfpT oaethihlrnseeeiacdg 4itte n h0scsetao,.0o dnv0r eaf40org0 afre,t g0e2 oe 0x( 3r0ta r7h rafe2ty 2ha0d ( a r3cmaza7au2n2r)l di0b- e ufacturers are aware of this requirement and make correct connec- sprinkler main if they are sized for sharing the load between the when the two buildings involved do not have the same ownership or the fire protection is not under the maximum extra hazard coverage tions for these situations.Hangers in question tathwnedo hsBTuaroanp cgpfiienoxrgr stt shcf hooisarf ntsthihgteeue dtatrt ratiaophpneee, z rzetue.hl eebs e Ti nesc itzhhenedi c 2ian0ld 0C7ivo iedmdumiatiloiltynt e tteoo osruenqp Hupioarenrt g tthinhaget BK-NFPA-13HB19-180218-Chp20.indd 684 10/10/18 9:11 PM tory text in the standard. cciadoonennnnttutrrnioofcyll i ovawaft hliavoi escnihs nd iganerlv eeai acnpse ae sorm tsry ube. crSuhguil eacdnhsinc ssygti rtssou iatbaurteeiaso te nrixoaspnt che. aerAniren tnrohectasihunnelg tmr iwcnuoa lintmtiespiprldfealeo ilrrowmact. aieTolnh nati slssa hctrhmaoanu tb lb dgee olb la sue.c ncthkonem oapwblinislih toyer d od fwe alialtayhrs mv inis d iabeclvecie caselsasirn tmgo asrttehhyreqsaetatu ep hifmrooaetrsvme heinsey ts ndciiamotrlsan ie uflsaxoliirsircs t fstaeistrlno eltyt or l adwo ugeaisetdsehi iag n ttrnhgheee.ea dI s f sprinkler main. This approach is the most conservative and will ordinary or light hazard areas for work for all circumstances, as long as connections to the trapeze 4.5.6* Detached Buildings. storage in the future, use of the memUbenrd weril tl hsuep ppeorfrot rtmhea gnrceea-tbear sleodad o, pwthioicnh o tfh 1e7y.1 n.2o,w p rdoof.essional Designer’s Corner features A.4.5.6 Buildings adjacent to a primary structure can be protected by extending the fire sprin- (lo3w72e0r smy2s)t eams t haere aal loofw 4a0b,0le0 0 ft2 3 in. trapeze member esinzgedin eteor ss ucpopuoldr t stoilnl lyd etshigen t raa pterazpee zmee wmibthe r hiaf ntgheerys tpheartf oarrme ➤ provide insight into sprinkler ksplerrin skylestre smy sftreomm f othre s mpraimll aaruyx isltiraurcyt ubruei.l dTinhgiss .e Iltiemminsa ttheas t tshheo nuelde db eto c opnrosvidideree da bseepfoarrea tefi nfairle- saypspteromp rpiarotete.ction area would be 6 in. sprinkler main tahdee qcuaalctue lsautipopnos rtto o vperroavlle t oth tahte tshper inhkalnegr emr aainss. eTmhibs lcya lpcruolvaitdioens system design and installation. “N” icons indicate a section, i(z1i)n gA fcirteu aslp prihnyksliecra dl edsiisgtann scheo bueldtw ineecnlu addej athcee nfot lsltorwucitnugr:e s Schedule 40 Trapeze Hanger. wcoomupldl yn wotit hb eN dFPifAfi c1u3l.t for a structural engineer and would still figure, or table that is new for ((23)) PSoqtueanrtei aflo footar gthee o pf rbooptehr ttyh et op rbiem saprlyit a inndto a suexpialiraartye sptarurccetulsr easnd sold separately this edition of the standard. (4) Difficulties in providing a separate water supply to the auxiliary structure (5) Occupancy/hazard of the auxiliary structure 17.4 * Installation of Pipe Hangers . (6) Aflobwili tiys oorfi geimnaetrignegncy response personnel to easily identify the structure from which water- A.17.4 To enhance permanence, proper hanger installation is important. Installation Nonmandatory Annex A material 4.5.6.1 Unless the requirements of 4.5.6.2 apply, detached buildings, regardless of separation dis- phraoncgeedru arsesse mshboliuelsd amree settr aiingdhut,s tpreyr psetannddicaurdlasr toof tphrea pctiipcee, uannidf ocrmralfyts mloacnatsehdip, .a nFdo sr neuxga tmo ptlhee, ➤ follows its corresponding t4a.n5c.6e.,2 t hWat dhoen n oatc mceepetta tbhlee ctroit etrhiea oafu 4th.5o.r4it syh ahlal vbien gp rojuvriidseddic wtiiothn ,s edpeataracthee fdir es tsrpurcitnukrleesr ssyhsatlelm bse. structure with fasteners fully engaged. mandatory text in the standard. permitted to be supplied by the fire sprinkler system of an adjacent building. 17.4.1 General. Ask the AHJ features provide ASK THE AHJ FAberAe uQ ttoi lgi[zg1el7de .hi4na. 1gny.g1pe.sr2su] mpe wrmaliltbteoda rtdo 11in77d..44ep..11e..n11d .1eC*ne tliUyli nnolgfe stShsh eteh caeet irhleiiqnnuggi .rsehmeaetnhtisn go.f 17.4.1.1.2 are met, sprinkler piping shall be supported authinosriigtihets ihnatovi nqgu ejustriiosdnisc tthioant ➤ ? WsFprohrmiyn w kthloeeur slsdtya santned mpauo?tinhto orift ayn h aauvtinhogr jiutyr ihsdavicintigo nju hriasdveic ctioonnc, ethrnes p arbimoaurty m puroltbiplelme b wuiitlhd imnguslt iupslien bgu tihldei nsagms ues fiinrge ceilings? A.17.4.1.1.1 Fasteners used to support sprinkler system piping should not be attached to ceil- often have to answer. tbhueil dsainmge o swpnrienrk sletor psys smteamin toacincuinrgs itfh eea wcha tbeur islduipnpgl yis a onrd b tehceo bmueilsd oinwgns eadre b uyn ddieffre sreenpta roawten oewrsn. Ief rtshheip s,o itu brcee- Toggle hangers are not permitted ings of gypsum or other similar soft material. comes very difficult to enforce fire code maintenance requirements for the dependent building. If the author- foorr o utshee wr lietshs gsyupbssutamn twiaal ltlbypoeasrd o f 17.4.1.1.2 Toggle hangers shall be permitted only for the support of pipe 1½ in. (40 mm) or iotry ihmapvoinsgsi bjuleri sfodri ctthioe no walnloewrssh tihpe o uf sthee o ifn tdhiev iedxucael pbtuioilnd iinng 4s. 5to.6 s.2p,l iitt oshr wouhledr eb ele igna sl ietuaasetimonesn wts haerere r eitc iosr udnedlik.ely ceiling materials. smaller in size under ceilings of hollow tile or metal lath and plaster. 2019 Automatic Sprinkler Systems Handbook Automatic Sprinkler Systems Handbook 2019 BK-NFPA-13HB19-180218-Chp17.indd 506 30/10/18 11:46 AM BK-NFPA-13HB19-180218-Chp04.indd 101 24/10/18 8:25 PM EDUFIRE.IR The 2019 edition of NFPA 13 has undergone a complete reorganization to provide users A Complete with a clearer, more concise, and more effective tool for the installation of sprinkler sys- Reorganization tems. Information is now clearly separated by subject matter, and the chapter order follows a logical progression based on when each piece of information is needed in the planning for 2019 and design of a system. Due to this extensive reorganization, the following features are provided to assist users familiar with the 2016 edition to locate material in the 2019 edition. CHAPTER 4 General Requirements REORGANIZATION NOTE Chapter 4 has been revised for 2019 to truly contain the general information needed for a fire sprinkler system. It begins with the expected level of protection and goes on to cover the owner’s certificate, as Reorganization Notes provide a it has in previous editions. It now includes occupancy classification, as that is the primary step neces- sary in the layout and detail of a fire sprinkler system. Miscellaneous and low-piled storage have been ➤ brief overview of what content incorporated into the occupancy classifications so that the user stays in the occupancy requirements from the 2016 edition makes up for protection, eliminating the confusion with applying design methods and other criteria. High-piled storage is mentioned only as a pointer to the storage chapters. Limitations on system size also have each chapter of the 2019 edition. been moved into Chapter 4. Chapter 4 contains the general requirements that apply to all of NFPA 13 and, in general, all systems designed and installed in accordance with NFPA 13. Chapter 20, General Requirements for Storage, pro- vides additional requirements that apply specifically to design and installation requirements for storage occupancies. Items covered include level of protection, limited area systems, owner’s certificate, the pro- hibited use of additives for stopping leaks in sprinkler systems, the use of air or nitrogen, and the support of components not included in the sprinkler system. Much of the information in Chapter 4 is addressed in FAQ [4.1] other sections of the standard, but emphasizing this information in this chapter was deemed appropriate by the technical committee on sprinkler system discharge. Does my building require a sprinkler system? NFPA 13 is an installation 4.1 Level of Protection . standard and does not specify whether a sprinkler system is required to be installed in a build- 4.1.1 A building, where protected by an automatic sprinkler system installation, shall be ing or structure. NFPA 13 specifies provi{ded7 withd sprin1klers cin allf ar2eas ex5cept dwhere- spfeci1fic se3ction0s2 0of1 t6h-–is2 s40ta1n9d aR3rOd pAeDermMitA t0hPe -how8 to probperly d7esign fand- 041dc4ddd530} omission of sprinklers. install a sprinkler system using the proper components after the The oldest and most important design concept of NFPA 13 is that sprinklersT mhisu rsota bdem inapst haallse bde ienn a clol marpeialesd o tfo assdisett eursmerisn faatmioilnia hr awsi tbhe tehne m20a1d6e e dition of the Standard for the Installation of Sprinkler Systems with locating material in the a building. This requirement dates back to the first edition of NFPA 13, publ2is0h1e9d e dinit i1o8n9. I6t ,i sw phroicvhid ceodn fotar iinnefodrm attiohna to an lsyp arinndk lsehro suylsdt enmot ibse r ereqluieidre udp. on as the only means of determining the disposition of requirements. The administrative authority the statement “sprinklers to be placed throughout premises” in the sectionA no nas tloercisakt ioonn a a snedct iaornra nnugmebmere inntd icatfeosr trheaqtu tihrienrge issp erxinpklalenrast owriyt hmina terial for that section in Annex A. While annex sections are not included in this table, all of sprinklers. This philosophy is part of the original insurance-based approacreht ationweda radn nriesxk saencdtio lenvs ehlasv oef b pereon- movbeudil dwiinthg st hree sptsa rwenitth p aanrayg oraf pthhe. tection that founded the standard. To truly minimize risk, the entire building must be protected. However, following: the local building code; insurance is no longer the primary driver for requiring sprinkler protection in the built environment. That NFPA 5000®, Building Construction rtohlaet hisa sfu slhlyif tceodm opvleiarn ttim wei ttho tthhee bbuuiillddiinngg acnodd efi raen cdo odnesly. Iht aisv pe oosnsieb loef ttoh hea ovcec auS pme2acint0xi1ecoid6ne EsoN dcsuicpmtuiroibpnneak r nlsecrye bd.u WilSdhei2nect0ngi1o 9n ENaLduinfiemtdi SoSbanaef feresttyy CCooddee®®;; INntFSePerA2nct0 a1i1to0i6on1 n ®EN,a d uli mtiobne r s Se2ct0i1o9n ENduimtiobne rs Se2ct0i1o6n ENduimtiobne r s Se2ct0i1o9n ENduimtiobne rs this occurs, it should not be viewed as a limited area system, and NFPA 13 shoCuhlda pbtee ra 1p plied in its entiCrehtayp terB 1u ilding Code; or in3s.u3r.4a*nce 3.3.25* 3.5.5 3.3.53 tshprroinukglehroeudt tthhreo puogrhtoiount ,o ef vthene bwuhilednin pgo crotinotnasin oinf gth teh eb purioldtiencgte adr eo cncoutp parnoctye. cAA1te. d1bdm*u   ibilndaiissnetgrda itsoi ocnno tnhseid aelrloedw faA1ub.d1lllm*ey   inisrtttehhrgaeatu tb irloauentiqlidouininrseg tssh paarnti ndtyk s33plet..ir33rcu ..as55cyl.tl1syut rseepmse sc.i fy 33..33..2363 33..55..67 33..33..6782 omissions permitted by NFPA 13. 1.1.1   1.1.1   Where the building3 .c3o.5d.2e does 3.3.26.1 3.5.8 3.3.78 The format of the standard is not written to identify specific areas that are1 .r1e.2quired to have sprink1le.1r.s2. not require a sprin3k.l3e.r5 s.3ystem but 3.3.26.2 3.5.9 3.3.180 NFPA 13 requires sprinklers throughout the portion of the building containin1g.1 t.3h*e   protected occupa1n.c1y.3, *  one is installed vol3u.n3t.5a.r4ily, the 3.3.26.3 3.5.10 3.3.181 even though it usually is the entire building that is to be protected. The few1. 2exceptions to this rule1 .a2re requirements of th3is.3 s.t5a.5ndard still 3.3.26.4 3.5.11 3.3.204 associated with specific conditions and are relatively new revisions to the stan1d.2a.1rd  . 1.2.1   ainpgp blye tion gth per optoercttieo3dn.3. o.6f the build- 3.3.39 3.5.12 3.3.213 1.2.2  1.2.2  3.3.7* 3.3.46* 3.5.13 3.3.215 Shaded text = Revisions for this edition. N = New material for thi1s. 3e  dition. 1.3   3.3.8* 85 3.3.57* 3.5.14 3.3.226 1.3.1   1.3.1   3.3.9 3.3.58 3.6 3.3.205 1.3.2  1.3.3 3.3.10 3.3.62 3.6.1* 3.3.205.2* 1.4   1.4   3.3.11 3.3.73 3.6.2 3.3.205.3 1.4.1   1.4.1   3.3.12 3.3.76 3.6.2.1 3.3.205.3.1 1.4.2   1.4.2   3.3.13 3.3.86 3.6.2.2 3.3.205.3.2 BK-NFPA-13HB19-180218-Chp04.indd 85 1.4.3   1.4.3   3.3.14 27/09/18 3 1.:32.89 3PM 3.6.2.3 3.3.205.3.3 1.5  1.5  3.3.15 3.3.104 3.6.2.4 3.3.205.3.4 The 2016–2019 Roadmap cross 1.5.1   1.5.1   3.3.16* 3.3.114* 3.6.2.5 3.3.205.3.5 1.5.2   1.5.2   3.3.17 3.3.129 3.6.2.6 3.3.205.3.6 references section numbers of the ➤ 1.6   1.6   3.3.18 3.3.133 3.6.3 Deleted 2016 edition to the 2019 edition. It 1.6.1   1.6.1   3.3.18.1 3.3.133.1 3.6.3.1 3.3.205.4.3 1.6.1.1   1.6.1.1   3.3.18.2 3.3.133.2 3.6.3.2* 3.3.205.4.4* can be found at the end of the book. 1.6.1.2   1.6.1.2   3.3.19* 3.3.174* 3.6.3.3 3.3.205.4.7 1.6.1.3   1.6.1.3   3.3.20 3.3.189 3.6.3.4 3.3.205.4.8 1.6.1.4   1.6.1.4   3.3.21* 3.3.195* 3.6.3.5 3.3.205.4.12 1.6.2   1.6.2   3.3.22 3.3.196 3.6.3.6 3.3.205.4.13 1.6.3*   1.6.3*   3.3.23* 3.3.206* 3.6.4 Deleted 1.7 1.7 3.3.24 3.3.216 3.6.4.1* 3.3.205.4.1* 1.7.1   1.7.1   3.3.25 3.3.218 3.6.4.2* 3.3.205.4.2* 1.7.2   1.7.2   3.4 Deleted 3.6.4.3* 3.3.205.4.5* nfpa.org/13 Chapter 2 Chapter 2 3.4.1 3.3.206.1 3.6.4.4 3.3.205.4.6 Visit the NFPA 13 document information page (http://wwwRP.uenfbelfricepantacioe.dno srg/13) fRPouerfbe lruiceanptcioe-dnt so-date, d33..o44..12c.1ument-spec3Di.efi3l.e1ct6e 0d 33..66..44..56 33..33..220055..44..910 information, including any issued Tentative Interim AmendCmhapetenr 3t s and ErraChtaap.t eTr h3 e docum3e.4n.3t information3. 3p.20a6g.2e 3.6.4.7 3.3.205.4.11 Definitions Definitions also provides users with the option to register for an “Alert” feature to receive an automat3i.4c.4 email notific3a.3t.2i0o6.n3 3.6.4.8* 3.3.205.4.16* 3.1 3.1 3.4.5 3.3.206.4 3.6.4.8.1* 3.3.205.4.14* when new updates and other information are posted regar3.d2ing the docu3m.2ent. 3.4.6* 3.3.206.5* 3.6.4.8.2 3.3.205.4.15 3.2.1* 3.2.1* 3.4.7* 3.3.206.6* 3.6.4.9 3.3.205.4.17 3.2.2* 3.2.2* 3.4.8 3.3.206.7 3.6.4.10 3.3.205.4.18 EDUFIRE.IR 33..22..34* 33..22..34* 33..44..910* 33..33..220066..89* 33..66..44..1111.1 33..33..220055..44..1290 3.2.5 3.2.5 3.4.11 3.3.206.10 3.7 3.3.42 3.2.6 3.2.6 3.5* Deleted 3.7.1* 3.3.41.1* 3.3 3.3 3.5.1 3.3.2 3.7.2* 3.3.41.2* 3.3.1 3.3.118.1 3.5.2 3.3.3 3.8 3.3.205* 3.3.2* 3.3.16 3.5.3 3.3.7 3.8.1 3.3.205.1* 3.3.3 3.3.24 3.5.4 3.3.19 3.8.1.1 3.3.6 Automatic Sprinkler Systems Handbook 2019 1231 BK-NFPA-13HB19-180218-Road map.indd 1231 23/10/18 3:11 PM Product Management: Debra Rose Art Direction and Interior Design: Cheryl Langway Development and Production: Ken Ritchie Cover Design: Twist Creative Group Copyediting: Nancy Wirtes Composition: Cenveo Publisher Services Permissions: Tracy Gaudet Printing/Binding: Webcrafters Inc. Copyright © 2018 National Fire Protection Association® One Batterymarch Park Quincy, Massachusetts 02169-7471 All rights reserved. Important Notices and Disclaimers: Publication of this handbook is for the purpose of circulating information and opinion among those concerned for fire and electrical safety and related subjects. While every effort has been made to achieve a work of high quality, neither the NFPA® nor the contributors to this handbook guarantee or warrantee the accuracy or completeness of or assume any liability in connection with the information and opinions contained in this handbook. The NFPA and the contributors shall in no event be liable for any personal injury, property, or other damages of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or reliance upon this handbook. This handbook is published with the understanding that the NFPA and the contributors to this handbook are supplying information and opinion but are not attempting to render engineering or other professional services. If such services are required, the assistance of an ap- propriate professional should be sought. NFPA 13, Standard for the Installation of Sprinkler Systems (“NFPA 13”), is, like all NFPA codes, standards, recommended practices, and guides (“NFPA Standards”), made available for use subject to Important Notices and Legal Disclaimers, which appear at the end of this handbook and can also be viewed at www.nfpa.org/disclaimers. Notice Concerning Code Interpretations: This fourteenth edition of the Automatic Sprinkler Systems Handbook is based on the 2019 edition of NFPA 13. All NFPA codes, standards, recommended practices, and guides (“NFPA Standards”) are developed in accordance with the published procedures of the NFPA by technical committees comprised of volunteers drawn from a broad array of relevant interests. The handbook contains the complete text of NFPA 13 and any applicable Formal Interpretations issued by the NFPA at the time of publication. This NFPA Standard is ac- companied by explanatory commentary and other supplementary materials. The commentary and supplementary materials in this handbook are not a part of the NFPA Standard and do not constitute Formal Inter- pretations of the NFPA (which can be obtained only through requests processed by the responsible technical committees in accordance with the published procedures of the NFPA). The commentary and supplementary materials, therefore, solely reflect the personal opinions of the editor o{r 7othedr co1ntricbutfor2s an5d ddo no-t fne1ces3saril0y re-pr4ese3nt thee o0ffici-al8 posbitio7n off th-e0 NF4PA 1or itds tecchn4icald comdmidttee5s. 30} REMINDER: UPDATING OF NFPA STANDARDS NFPA 13, Standard for the Installation of Sprinkler Systems, like all NFPA codes, standards, recommended practices, and guides (“NFPA Standards”), may be amended from time to time through the issuance of Tentative Interim Amendments or corrected by Errata. An official NFPA Standard at any point in time consists of the current edition of the document together with any Tentative Interim Amendment and any Errata then in effect. In order to determine whether an NFPA Standard has been amended through the issuance of Tentative Interim Amend- ments or corrected by Errata, visit the “Codes & Standards” section on NFPA’s website. There, the document information pages located at the “List of NFPA Codes & Standards” provide up-to-date, document-specific information, including any issued Tentative Interim Amendments and Errata. To view the document information page for a specific NFPA Standard, go to http://www.nfpa.org/docinfo to choose from the list of NFPA Standards, or use the search feature to select the NFPA Standard number (e.g., NFPA 13). The document information page includes postings of all existing Tentative Interim Amendments and Errata. It also includes the option to register for an “Alert” feature to receive an automatic email notification when new updates and other information are posted regarding the document. The following are registered trademarks of the National Fire Protection Association: National Fire Protection Association® NFPA® NFPA 70®, National Electrical Code® NFPA 72®, National Fire Alarm and Signaling Code® NFPA 101®, Life Safety Code® NFPA 5000®, Building Construction and Safety Code® NFPA No.: 13HB19 ISBN (PDF): 978-1-4559-1-9796 ISBN (e-book): 978-1-4559-1-9703 ISSN: 1939-8913 Printed in the United States of America 18 19 20 21 22 5 4 3 2 1 EDUFIRE.IR BK-NFPA-13HB19-180218-FM.indd 2 11/2/18 2:13 PM I would like to dedicate this handbook to my wife Cathy and my sons David and Alan for their unending encouragement, sense of humor, and support in all my endeavors. —Dave I would like to dedicate this handbook to my parents, Lynn and Robert Duffy. All of the great things in my life have come thanks to your guidance, sacrifice, and example. Thank you. —Chad {7d1cf25d-f130-43e0-8b7f-041dc4ddd530} EDUFIRE.IR BK-NFPA-13HB19-180218-FM.indd 3 11/2/18 2:13 PM {7d1cf25d-f130-43e0-8b7f-041dc4ddd530} EDUFIRE.IR BK-NFPA-13HB19-180218-FM.indd 4 11/2/18 2:13 PM Contents Preface xi 5 Water Supplies 107 Acknowledgments xiii 5.1 General 108 About the Contributors xv 5.2 Types 113 About the Editors xix 6 Installation of Underground Piping 123 1 Administration 1 6.1 Piping 123 6.2 Fittings 130 1.1 Scope 1 6.3 Connection of Pipe, Fittings, 1.2 Purpose 3 and Appurtenances 131 1.3 Application 4 6.4 Protection of Private Fire Service 1.4 Retroactivity 4 Mains 132 1.5 Equivalency 5 6.5 Grounding and Bonding 139 1.6 Units and Symbols 6 6.6 Restraint 139 1.7 New Technology 9 6.7 Steep Grades 150 6.8 Installation Requirements 150 2 Referenced Publications 13 6.9 Backfilling 152 {27.1 dG1enecralf 2 153 d-f130-43e0-8 b76f.1-0 0Te4stin1g adnd cAc4cepdtandce d 155330} 2.2 NFPA Publications 14 2.3 Other Publications 14 7 R equirements for System 2.4 References for Extracts in Mandatory Components and Hardware 161 Sections 18 7.1 General 161 3 Definitions 21 7.2 Sprinklers 164 7.3 Aboveground Pipe and Tube 171 3.1 General 21 7.4 Fittings 175 3.2 NFPA Official Definitions 21 7.5 Joining of Pipe and Fittings 176 3.3 General Definitions 23 7.6 Valves 184 7.7 Waterflow Alarm Devices 184 4 General Requirements 85 7.8 Additives and Coatings 184 4.1 Level of Protection 85 8 S ystem Types and Requirements 187 4.2 Owner’s Certificate 86 4.3 Classification of Hazard 88 8.1 Wet Pipe Systems 187 4.4 Hose Connections 98 8.2 Dry Pipe Systems 191 4.5 System Protection Area Limitations 98 8.3 Preaction Systems and 4.6 Water Supply Information 102 Deluge Systems 207 4.7 Additives 103 8.4 Combined Dry Pipe and Preaction 4.8 Air, Nitrogen, or Other Approved Gas 103 Systems for Piers, Terminals, and 4.9 Support of Nonsprinkler System Wharves 214 Components 104 8.5 Multi-Cycle Systems 218 4.10 Noncombustible Materials and 8.6 Antifreeze Systems 219 Limited-Combustible Materials 104 v EDUFIRE.IR BK-NFPA-13HB19-180218-FM.indd 5 11/2/18 2:13 PM