HomeMy WebLinkAboutPermit Building 2001-6-19
June 19, 2001.
0' J Omfia
Omi[cf & Swinney :fire Syrink{er Systems Inc.
1265 35tfi Street
Syringfie{cf, OR 97478
Re: Symantec (iate'way :fire. SyrinFi{er
'Dear Mr. Omfict
225 FIFTH STREET
SPRINGFIELD, OR 97477
(541) 726-3753
FAX (541) 726-3689
.Jls a fo{[(yw uy to my fetter aatea 5/17/01 ana in accoraance witn
ORS455.020 ana section 104.2.8 of tne Oregon State Syecia{ty Coae,
tne City of syringfie{a 1-vi{{ arrow tne 22-incn maximum c{earance
distance for syrinFi{ers unaer 'TJI construction yer N:fT.Jt 13, 1999
edition. Section .Jt-1-4 6'B ana 5-6.4.1.2. of tne :N:J'P.Jt 13, 1999 edition
yroviaes in yart tnat syrinFi{ers are not re quire a in eacn joist
cnanne{ as {ong as tne syrinFi{er aef{ectors are not more tnan 22
incnes be{ow tne roof aecFi.
Resyectfu{{y, .
'~ d~~~,-0
'Dave Tuent
Community Sen'ices Manager
Tnc{osure
Cc: 'Dennis Sne1-v, 'Deyuty Cnief/:fire Marslia{
Lisa :]-{oyyer, 'Bui{ding Safety Suyen'isor
.Jt{ {ierara, 'Deyuty :fire Marsna{
Lorne T{eger,T{ans Txaminer
06/19/01 TlIE 11:35 FAX 5417410347
"
13-36
OMLID SWINNEY
LgJ UU.l
--....
lNSTALLATION OF SPRINkU:R SYSTEMS
- Table 5-6.2.2(d) Protection Areas and Maximum Spacin~ (Stand:\rd Spr-ay TJpiight/Standnrd Spray Pendent.) for High-l'iled
Storage
Spacing (maximum)
ft2
,Protection Area
ft
Construction Type System 1)pe
All Hydraulically caJC\l~
Jated with density :<:0,25
100
AIl
Hydraulically calcu-
lal:cd with density <0.25
130
5-6.3 Sprinkler Spacing (Standard Pendent and Upright Spray
SprinkIU!'i).
5..6.3.1 Maximum Distance Belmen Sprinklen. The rna:dmulll
distance permitted between sprinklers shall comply with Tables
!5~~2,2(a) th((lugh (d)., . ,
. "":'6.3.2'Mald.murn Distance f.rom Walls.
5-6.3.2.1 * The distance from sprinklers t.o walls shall not
exo;:ecd one-half of the allowable distance between sprln.
klers a.s indicated in Ta.bles 5-6.2,2(a) through (d), The dis-
tance frOIl) the wall to the sprinkler shall be measured
perpendicular to the wall. Wbere walls are angled or irreg-
ular, the maximuq1 horizontal distance between a sprinkler
and any point offl(IOr area protected by that sprinkle.r shall
Dot exceed 0.75 times the allowable distance permitted
between sprinklers, 'provided the maximUm perpendicular
distance is not exceeded,
Exr:tjJtion:'!' W1thfn ,\"mall fYJomsasd.efimd.inJ-4.2"SPrinklers,shal1*' I
be permitted to bl! located not more,than 9 fl (2.7 m) from any single
wrJ.ll, Sprillkle:r spacing limitations of 5-6.3 and area lil1litations oJ
Tabl~ 5-6,2.2(a) shaU nQt be cxciedeil..
5-6.3.2.2 '(Jnder curved surfaces, the horizontal distance shall
be me(l.sured at the floor level from Lhe wall, or the intersec-
tion of the CUlVed surface and the; floor to the nearest sprin-
kler shall not be greater than one.half the allowable di.~t:ance
between sprinklers.
5-6.3.3 Minimum Distance from Walls, Sprinklers shall be
located a minhnum of 4 in. (102 mm) from a wall,
5-6.3.4 Minimum Distance :8etween Sprinklers. Sprinklers
shall be spaced not less tha.n 6 ft (l.B m) On center.
E:<:cejJtian No.1: Sp1+nklerJ shall be pmrtitu.d /0 be Placed less tho.n 6 fi
(1,8 m) on a:rr.ttrr wlu;:rr. the following ctmditi.ons a11f satisfied: .
(0.) Baf./lF.s shalt be installe.d and Incated midway betwem sprin-
kI.ers and arranged /.() protett the ac/w;.ting elcm.mrs,
(b) Baf.fks sho,J.l be oJ noncoTnbl/stibk err liTflited-comblwiblt: maf,e,.
rial that. will stay in place biflrre and during sprinkll'l' operation,
(e) Ba/Jli.r shall bi:, nor. ?eSJ than 8 in, (203 mm) wide and 6 in,
(152 trim) high. The tops of bafflts shall extend bettJJten 2 in.' a:nd 3 in.
(51 mm and 76 mm) above the dejlel;um of uptight sfrriiTllt~s, Tk bot-
toms of f;afJles shall fP:t.rnd do((mwarrl. to a leuel at least cum with the
deflectors of p~ sprinklers. '
1999 Edition
m2
m
9.3
12
3.7
[In buildings with stora.ge bays 25 ft (7.6 m.)
wide, 12 ft 6 in. (3.8 m) shall be pern'!itr,~d]
12.1
15
4,6
E:rcepti{m No, 2.. lrt-rack sprinkl.ers shall be pr:rm.itted tfJ be Placed le,rs
than 6ft (1,8 m) on center,
Erception No.3: Old-style sprinku:r-s proUJcting fur storage vault.s
shall be fltm11itted /,(J he Placed less than 6ft (1,8 m) (m centltr.
5.6.4 Deflector Position (Standard Pendent and Upright
Spray Sprinklers).
5.6.4.1 Distance Below Ceilings.
5.6.4.1.1 Under unobstnlcted construction, the disr,<ltl,ee
berween chI;: sprinklc:r deflector and the ceiling shall be a
minimum of 1 in, (25.4: mm) and a maximum of 12 in.
(305 mrn), '
E:rccption: Ceiling-type sprinkja:s (cO'fU6l,Zled, nJct!.rsed, and flush
types) shall be permitted f.o 'have tM opl'l'atingckmmt above the ceiling
,and thr. deflector located r/,r.(1.r~ to the rmling wht!rP. imta,lled in r~(.(.or-
dfl.71ce wilh their listing,
5-6.4:1.2 Under obstructed construcriorl, the ;;?rl"lrl~,
deflc=ctor shall be locatcd',within the, horizoma.1 plane$ of
1 in, to 6 in. (25.4 mm w 152 mm) below the structural
members ;and a ma"imum distance of 22 in, (559 mm)
below the ceiling/roof deck.
'* Exaption. No.1: Sprinklers s!tali be pm'mitted to bit installed with the
d.ejkclor (Lt or abOTJ(; the bottom of rlu: structural member to (1. ma~:i'lnum
of 22 i'n., (559 mtn) l;e!lJW tk Cl!.i/ing/r()(Jf decJz uJhF:1'e the sprinkler is
installed in cOTiformanu with5-6,S: 1, 2.
Exception No, 2: Whc'l"t sflTinklers arr. insudlsd in each bay of (1)-
strlJ,cUid consf:rUdion, d41.ectors .rhall be P(:T71l.ittetl to be a minimum
oJ,1, in, (25,4711111) and a maximum of 12 in, (305 mm) below the
cetlmg.
E:>:crpti.on No, 3.. SJrri:T/,hler deflectors shall be pF:rmitted. /.0 he 1 in, to
6 in. below composite wood joists to a ttiaximum rlistcmce uJ 22 in,
below the ceiling/roof dedi. 011,[Y where joist r,hamuls Q.re fire-stopped
/.() the Jull depth of the joists with maum.rzl equivalent to the web con-
stru.r.tion so that individual clmnnel CffP.f1S do nol exceed 300 ft?
(27, 9 Tll~),
Excepti07t No.4:" Deflectors of sprinklers 'Under COfu:retF. tee cem-
struc/ion with stems spur,p,r/. less than 71 liJt (2,3 m) but mare th(1.7l
3 ft (0,9 m) on C6'n/ers shtlll, regardless oj r.he depth oj the tee, be per-
mil.ted to be loe(1ted at or tJ.botJe a homontal plane 1 in. (25.4 nlm)
helow the bol.tom oj thF. slr.ms of the tees and shall r,omPly with. Table
5-6,5,1,2,
&.6.4.1.3'" Sprinklers under or ncar the peak ofa roof or ceiling
shall have deflectors located not more than 3 Ft (0,9 m) vertically
dOMI from the peak. (SeeFiguros 5-6.4,1.3(0,) and 5-6.4,l.3(b),]
06/19/01 Tlm 11:34 FAX 5417410347
OMLIV SnlNNhY
~VVI-
13-160
INSTALLi'..TION OF SPRINKLER SYS-rfMS
It should be recognized that the termfaslre.sprmse (like ule
term quick 1'lJ.lpO'l'l.SlIused to define a particular type of sprin.
klc:r) refers to the thermal sensitivity within the operating
element ,of a sprinkler, not the time of operation in a partic-
ular installation; There: li,C many other factors, such as ceil-
ing' height, spacing, ambient .oom temperature, and
distance below ceiling, that aff<<::ct the time of response of
sprinklers. In most fU'e scenarios, sprinkler activation times
will be shortest where the thermal clel11c:nrs are located 1 in.
(25.4 mm) to 3 in. (76,2 mm) below the ceiling. A fast
responSe sprinkler is expected to operate quicker than a
. standard response sprinkler in Lhe same installation orienta-
tion. ;For modeling purposes, concealed sprinklers can be
\.onsidered equivalent to pendent sprinklers having a similar
thermal response sensirivity installed 12 hi, (305 mm) below
smooth unobstructed ceilings, and recessed sprinklers can
b<<:: considered equivalent to penden t sprinklers having a sim.
ilar thermal response sensitivity installed 8 in, (203 mm)
below smootlJ unobSl:rut:ted ceilings.
A-I-4.5.2 ESFR Sprinkler. It is irnpoI'~t to re4.li.7:e that the
effectiveness of Ulese highly t~ted and O1gineered spriJ'lkleTs
depends on the combination of fast response and the ql.la.1ity
and uniformity of the sprinkler discharge. It should also be
.realizedth;;1.l EsFR sprinlclerscannol be relied upon to provide.
fire control, let alone suppr~sion, if they aTe used o1itsidethe
guidelines spedfied in 7-9,5, '
A-1-4.5.2 QRES Sprinkler. Research into the dcvdopI1'1et~t of
QRES sprinklers is continuing under the auspices of the
National Fire Protection Resc3rch FOU1l<~ation. It is expected
that the proposed design criteria will be added to the st3ndard
when a thorough analysis of the test data is c;.o:mplr:ted,
A-1-4.5.4 Dry Sprinlcler- UJl,du certain ambient conditions,
wet pipe systems having dry-pendent (or upright) sprinklers
C<.Ul frce2;e due to he:l.t loss by conduction. Therefore, due con-
, sidention should be given to the amount of heat maintained
.' ,in 't.l\e heale.dspace, the lengdl of the nipple iIi ilic heated
space, and other 'relevant faC:tor.~,
Dry sprinkler'; are intended to extend into an unheated
area from a wc:t pipe system or to be used on a dry pipe system.
A-1-4.6 Obl;DUctcd Construction. TIle fonowing are exampk_q
of obstrUcted constrUction, The definitions are provided ILl a$Sist
the user in detennining the type of constnIction feature,
(a) Bcmll atlli Girder Con.stnUnon. The term beam end gitdet
eonstrtu:ticm as used in this standa:rd inc1l~des noncombU$t1'ble
and eombustible roof or floor ~ecks ~llppo1'ted by wood beams
of 4 in. (102 mm) or greater nominal thickness or concrete or
steel beams spaced 3 {tto 71/'l It (0.9 m to 2,g m) on center
and either'supported on or framed intO girders. [Where sup-
porting a wood plank. deek., this includes semi-mill and panel
construction, and whe:t'e s'upporting (with steel fumit\g)gyp-
sum plank, sted deck, concrete, tile. 01: sii:nilar material, this
, includes much ofthr: so-called noncolnbustiblc construction.)
(b) C.ompoSitc WoodJoist Construction, The tepn ClJ1"pr)si~ 'Wood
joist c01lSttu~t1'rm refers to wood beams of "I" cross section con-
strUcted of wood flanges and solid wood "'cb. supporting a floor
or roof deck. Composi.te: wood joists on vary in depth up lO 48
in. (1,2 m). can be :;paced up to 48 in. (1.2 III) on Centers, iUld
c;an span up to 60 ft (18 m) between support.~. Joist channels
liliould be frrcl(Opped to the full depth of thejoists with mate-
rial equiV'a.1~nL (0 the web COI\strUction so tbat individu:u chan-
'*
1999 Edition
~ nd are:u do not exceed 300 ft! (27,9 m2), [Sa FigunA-1-4.6(a)
fflT' em em:mp~ oj t:omposite wood joi.rt ccm.5trudion.]
:Figure A-I-4.6{l1) TyPical composite wood jobt CDI1$U'\lcUon.
, ~~-':;'~~
_ . _. n ._-,,=,,_=-,;-, ~r~"'--Wood
-''-- . ,..._-,~."..". -- /
\ bV (21 ( I? 1 \ (1l1V I J ~ \ )1) \
( t ~
(c) .Panel C011.SlT1J.ction. The term pl1ml COtLStT1J.ction as
used in this standard includes ceiling panels form.::d by
members capable of trapping heat to aid the operation of
sprinklers and limi.ted to a maximunl of 300 ft'- (27.9 m2) in
area. Beams spaced more than 71h ft (2,3 m) apart and
fra:med into girders qualify as pand c.onstruction, provided
the 300-ft2 (27,9-m2) area li.mitalion is met, _
(d) Semi-Mil! Const~tion. The tt:m'l $tmi-miU t:on.stnJ-Ctifn'l as
used in this standard refers to a modified standard mill con-
struction, whc:r~ greater column spacing u used and beams
rc:.st on girders,
(e) Wood Joisl Construction, The Lerm wood joist co=lnle-
tion refers to solid wood J;nembers of rectangular croSs sec-
tion, which c<u~ V<\11' from 2 in, lO 4 in. (51 mm to 102 mm)
nominal width and can be up to 14 in. (356 rom) nominal
depth, spaced up to 3 ft (0.9 m) OI~ centers. and can span
'up to 40 ft (12 m) between supports, supporting a floor or
:roof deck. Solid wood mcmbtrs less than 4 in. (102 mm)
nominal ""idth a.nd up to 14 in, (356 mm) nominal depth,
-'Paced more than. 3 ft (0,9, m) on Cf;nters, are also COI\sid-
t1'ed 1\S wood joist construction..
. .A-1-4.6 'UnobsU'uct~d Constx'uction. The following =e exam.
pIes of unobstructed constrUction. The definitions are pro-
vided to assist the 11..~Cr in ddC:l'mining the' type of construction
feature.
(a) Bar JoUl O:mstrw:tUm.. The = barjoi.st wn.stnu:litmrefers to
,const.rl1ction eroployiI~g joislJ consisting of steel trusHhaped
memh<::r:s. Wood txUSS-Shaped m~mber.s, which consist of wood
top and bOttom chord members not exceedi.ng 4 in, (102 mm) in
depth with sreel tube or 00,r webs , are also defined as barjoists, Bar
joists include noncombustible ,or CC!mbusu'ble roof or floor decks
on bar joist construction. (Sll Ji1gun.s A-1-4.6(b) aruJ, A-1--4,6(c) for
=,",plrJ ofbarjoi.st constnu:titm.J
Figure A-I-4.6(b) Wood bar joist consuuCliol'l..
41n, (102 mm) 01 less