16 of 1982 - Interim Energy Code Amendments - Family Dwellings C: I
MICROFILMED 0 82-9
SALT LAKE CITY ORDINANCE
No. 16 of 1982
(Interim Energy Code Amendments
Alternative for One and Two Family Dwellings)
AN ORDINANCE AMENDING CHAPTER 17 OF TITLE 5 OF THE REVISED
ORDINANCES OF SALT LAKE CITY, UTAH, 1965, AS AMENDED, RELATING TO
ENERGY CODE REQUIREMENTS BY ADDING SECTION 5-17-2 CREATING AN
INTERIM ALTERNATIVE APPLICABLE TO QUALIFYING RESIDENTIAL
CONSTRUCTION.
Be it ordained by the City Council of Salt Lake City, Utah:
SECTION 1. That Chapter 17 of Title 5, Revised Ordinances
of Salt Lake City, Utah, 1965, as amended, relating to energy
conservation be, and the same hereby is, amended by adding new
Section 5-17-2 creating a new Section 7, relating to an interim
alternative for design by objective acceptable practices for one
and two family dwelling residential construction which shall read
as follows:
Section 5-17-2. Alternative Design by Acceptable Objective
Practice for One and Two Family Dwellings. The Salt Lake City
Energy Conservation Code, 1978 edition, adopted by Section 5-17-
l(b) of this title be, and the same is hereby amended by adding
thereto a new Section 7 which creates an alternate method of
design for qualifying one and two family dwellings which shall
read as follows:
SECTION 7
ALTERNATIVE DESIGN BY ACCEPTABLE OBJECTIVE
PRACTICE FOR ONE AND TWO FAMILY DWELLINGS
701.1 Scope of Alternative. All detached one and two
family dwellings under 5,000 gross square feet in floor area can
be considered to satisfy the requirements of this code (in lieu
of requirements under sections 5 and 6). provided all of the
following objective standards are met.
702.0 Insulation Standards.
(A) Exterior walls - The minimum R value for insulation in
exterior walls shall be R-11. Exterior walls shall include the
rim joists both parallel and perpendicular to the floor joists.
(B) Floor-Ceiling Assemblies - The minimum R value for
insulation in floor-ceiling assemblies in crawl space areas,
unheated basements, and unheated garages and overhangs shall be
R-19.
EXCEPTION: In lieu of insulating the ceiling area of an
unheated basement, the rim joists shall be insulated to R-11 and
the perimeter of the basement walls from ceiling to one (1) foot
below frost line shall be insulated to R-5 on exterior or
interior of foundation wall.
(C) Ceiling-Roof Assemblies - The minimum R value for
ceiling-roof assemblies shall be R-30.
(D) Slab on Grade - The minimum R value for slab on grade
shall be R-7. The insulation shall be extended to a depth equal
to the depth of the slab. Where the slab is less than 24 inches,
the perimeter insulation shall extend either horizontally or
vertically 24 inches inward from the outer edge of the perimeter.
(E) Air Handling Duct System - All supply and return ducts,
plenums and enclosures installed in or on buildings shall be
thermally insulated to meet the requirements in the table below.
TABLE 1
Duct location Insulation Types Insulation Types
mechanically Cooled Heated
On roof or on
exterior of
building Cr V and W B and W
Attics, garages
and crawl spaces B and V B
In walls, within
floor-ceiling spaces B and V B
Within the
conditioned space None required None required
-2-
Cement slab or
within ground None required None required
Note: Where ducts are used for both heating and
cooling, the minimum insulation shall be as
required for the most restrictive condition.
Insulation may be omitted on that portion of a duct
which is located within a wall or a floor-ceiling space
where both sides of this space are exposed to
conditioned air and where the space is not ventilated
or otherwise exposed to unconditioned air.
Insulation Types:
B = 2-inch 0.60 lb./cu. ft. mineral fiber blanket,
1-inch 1.5 to 3 lb./cu. ft. mineral blanket
(duct liner),
1-inch 3 to 10 lb./cu. ft. mineral fiber board,
or less than R-4.2
C = 3-inch 0.60 lb./cu. ft. mineral fiber blanket,
1 1/2-inch 1.5 to 3 lb./cu. ft. mineral blanket
(duct liner),
1 1/2-inch 3 to 10 lb./cu. ft. mineral fiber
boards,
or less than R-6.7
V = Vapor barrier, with perm rating not greater than
1 perm, all joints sealed
W = Approved weatherproof barrier
(F) Circulating Heated or Chilled Pipes in Unconditioned
Spaces - The minimum R value for piping insulation shall be R-
2. A basement with wall insulation shall be considered a
conditioned space. (See (B) above for further clarification.)
(G) Certification of Insulation - Before a certificate of
occupancy is granted, the contractor or owner shall present a
statement of compliance to the Department of Building and Housing
Services certifying:
(1) The manufacture and R value of the insulation as
installed for the areas stated above.
(2) The insulation was installed according to the
manufacturer's recommendation for the tested assembly.
703.0 Air Infiltration and Leakage
(A) Exterior joints around windows and door frames, joints
between all seal plates and foundations, openings at penetrations
-3-
of utility services through walls, floors and roofs; all other
such openings in the building envelope shall be sealed, caulked,
gaske ted, or weatherstripped to limit air leakage.
(B) Exterior doors shall be provided with gasketing or
weatherstripping at the head and jamb. Pairs of doors shall be
provided with weatherstripping or astragals at the meeting
stile. The bottom of the door shall also include tight-fitting
weatherstripping between the door and the threshold.
(C) Vapor barriers shall be required in walls, single-
member ceilings, and unventilated attics. Some acceptable vapor
barriers are vapor barrier paint, craft paper, and polyethylene
film.
704.0 Glazing
(A) All windows and sliding glass doors shall be double
glazed. Skylights must be approved double glazing. The window
or skylight frame shall be made tight to the framing member with
caulking, overlapping membrane, or other approved technique.
(B) The total area of glazing shall be 15% or less of the
total gross exterior wall area. An exception may be allowed for
more glazing with verification of the improved performance.
(C) Consideration shall be given to the use of overhangs to
shield the building interior from summer sun and a large portion
of south facing glazing to permit winter sun.
705. Exceptions. The standards set forth are to establish
minimum objective criteria so that the energy use caused by heat
loss and heat gain is minimized. variations from the above
standards may be authorized by the Building Official if
professionally engineered heat loss and heat gain calculations
demonstrate and verify alternative methods will achieve
equivalent or improved energy conservation performance levels
achieved by the standards above.
SECTION 2. This ordinance shall become effective upon the
date of its publication and shall be available and apply to all
plans for residential construction and remodeling which have not
-4-
received building permits as of the date of its passage.
Passed by the City Council of Salt Lake City, Utah,
this 2nd day of __March , 1982.
d�
JHNW�M
ATTEST:
CI.Y RE RDER
Transmitted to the Mayor on March 9 1922
Mayor's Action: ' 1
MAYOR-
ATTEST:
CI Y R RDER
cc50
(S E A L)
BILL 16 of 1982
Published: March 17, 1982
-5-
ADM-35P
Affidavit of Publication
STATE OF UTAH,
SS.
County of Salt Lake
Shana D. Conat
SALT LAKE GSTa ORDINANCE Y
No.ifa T .....................................................................................................
.........
(Iltlaritn E.,7 Gods' —
AHNPaevefat'OneaMTisB Iv DVhl0igs)
AN ORDINANCE AMENDING CHAPTEER 17 OF TITLE 5
OF THE REVISED ORDINANCES aaF SALT LAKE CITY,
'TA H 1%5 AS AMENDED,RELATING TO ENERGY CODE
AN0INtERIM A4TERNA DINE APPLICABLE TO gUAIIFV Being first dilly sworn,deposes and Says that he 1S legal
ING RESIDEN LCANSTRUCTION- advertising clerk of the DESERET NEWS, a daily
Be it lain I lla City Coll ILO,SaH Lake City,Utah:
SEcfoN,.Tnarcnamarnofnn¢s,Raylaadord(nar�- (except Sunday) newspaper printed in the English
as f Salt a.That
Ulah,1%5,as amended,relating ro ener-
gy° ry e¢,aMma3amanarabyis,ameMMbyatl- language with general circulation in Utah, and
dlia new Elf',
cleatlnBe new Saab ralatinq to an
+nNrimalterlat+yewIr lonzolot lvea wablePracrl- published in Salt Lake City, Lake County, in the
es ro�pRs all hVo IamdY dwelip, resttleotial cOnsirUGHOn P y y
wmcn3t�u sad asrol,Dwa: State of Utah.
Sect 5.17-2.Alternative Desiell tiv/cePtable Obioclive
Practice'I all Two Famll DN'a11 nos,The Salt Lake
City En€Igy rvatiof God®,1�7e edition,adePted by Sec-
tion SI (J s NXe be,antl Hie me Ic fwreby amorked
by add roBIME a raw,Section 7gm"at�n<reale3 an ab¢mare That the legal notice of which a copy is attached hereto
wthud wwff for BVaIIFvif(g one and two family UweII1nB5
elch shall reetl.asfollowsw
SECTION
A-00Er5Rp TIVBO SSIGNSC ACCEPTABLE Pub notice of Ordinance #16 of 1982 (interim
TATW0 FAMI4�ID 6�LIN0S ...............................................................................................................
70f'f godoa of Altersi lye.Al, to oM ehd two fami
he dwel0�p Ufreer 5,000 Bt115s sqV in floor are a can be energy code amendments alternative for one two
rvraltlere43fo'sarlrsS' (eeufre r1t�n+ rCoiddas(In ilea of gY Fj
reoulrement antler sedans 5 Nld b pr`ovldeA'all of the rob ....... ........... ........... ............ .. ...... .........
IOWI obi tVB3laMdrd6 are that.
g In I or al s-The lc.
(,IEk r+or•wills-Thammxt om etiRvn1aarotmamanaOm family dwellings)
axon cy' 11 be R-11.E%tarior.wall5 shell IMIWe the ......................................
rim to s Il61 aantl�cerppeeMlcular M 1M floor Iolsfs. .........................................................................
(' II to ASSomb(les-Tbe.minimum R value for
irrsufatyl i ,I <elllma assemblies In craw!space areas,
Unheatgtl t5,am unheated 9araoes an Overhangs
shall be R. !I0Nr;ln lieu of inwallnB Ha ceiling}a¢rdea of an ..................................................................................•............................
andd 1 er)ofnherbase FllSerait Wellsrfrain ceilingi to one
(1)foot below M !line She l be,mulafetl to R-San exterior or ...............................................................................................................
111fenor off
redcei , St. on 0 ad,,-Thh.e is e e ba exienaefor ta°On March 17, 1982
m R value for
eq was published m said newspaper on............I.........I..................
Inches the perfin er"lrlsyleltlon she extend el}11er lVirl�nfab
ly or v%flcalty Ra IMMs Inward from the outer edge Of the
perimet .. ...... .......... .....
(E)Air faMling Duct SystemsupglY antl \
duels,Plenums all Inclosures inslalieA m or on but lEings
shall be thermally insulated to meet the rae.iramanrs in the
ti ,J,.. \ 1 ... 1 \. _J \...�y.
... ., ....... .. r .......
On roof a ................
tabeb¢IOW.
jTABLE Legal Advertising C rk
Duct location InsVlatinn Types InsulaHomed '
Mec�lirdcally - Heated
pl ............................•.................
a%farigrof fore:me this 31st ....day of
Attics,
C.V all W B antl W
andc awlsges
and crawl spouts 'B all V B
In walls,wi Min O
fygri{rmlllnqe spaces B and V B A D•�9 V�•
wim
,t.,�s�c¢ None reaulred None roPu red
within gr0u d None.re0ulrecl 1,10=eOVired
Note:WMrB ducts are used for both r e(.7 and cooling•fie
minimum Imulation shall be as reouired for the rtasf resiric- /
five condition.
Insuatlw maY ba omiliod on that pDrll.of a duel which is
loca,e0 with
a well Or a flCorcelli space ornate both Sides ......l...........
Of this space are expos f to cdMlho a and ornate the .............. ...� ~
spat¢is rot ventilated a oMerwise exposed to unwntlitignetl Notary PI1bhC
air.
anion Ty
B- 2-inch ON lb./cu.ft.minaret fiber blanket,1-Inch 1.5 to
3lb./cu.ft'mineral blanket(duct liner).
1-inch 3 ro 10 Ib./cu.it mineral fiber board,or less than
R-a-2
C '3-inch 0.60 lb./cu.ft.mineral(Mar blanket,7 1/2-Inch (A)All wintlpws antl slidlrp glass doors shall M double
1.5 to 3 lbdcu.ft.mineral blanket(duct I(nerl, glazed Sku must De
1 1/2-IMh 310 io Ib./cu.ft.mineral fiber boards, tleiv or sk I keels aPorONBtl d0uble Blazirre The wiM1
� 4tX shah be made fight ro me framing
V or%Wrn barrier,with perm rating tat greater then 1 Moved l Vu llt[1tB,gvBrl+NOirq rnemhrane,M Other e
Perm,all IOlniss ul¢tl (B)T11e a1Dl area of glaxing pall he IS%Or less W me
W AD od weatherproof barrier total Bross exterior wall area.An eXcepfion maV M el lowed
(F)C+rculatIM Heated or Chilled Pipes in Umm�dltloned a glazirp will VerIRWton of the Improved cerfor-
SDaces-The minimum R valuo for piDi'h'hall be lOn shall 0e......... IC)Comitlerarbn snail qe I
R-2.A basenant wim wall'nsVletlOn shall be Considered a 9 van fo the use of overhangs to
Oond tionetl!Dace.(see lB1 above far furfMrclarification.) ahleltl,M Dunp interior from summer son and a large Per.
(G)i CeHitiration of lnsulatl,:,&fore a cerliflcata On occu- t+on of5luM facing glartn t to Permit w+ntar sun.
pally ore led Me contractor or owner shall present a 7g5.Excepti0m.The standards set forts are to establish
,few— of CoinVl lanix to Itle Department of BUIIdino antl minimum oblective criteria W that ill energy use caused by
Housing SeMCos coUlfring: heat loss and treat gain Is minimized.Variations from HN
(1 p of dare and Rvat -of 1He imulatlOn as
above stafgerds may be autberized by'he Building
instal gl he efaat,stared abOJe - 0.h"t loss and heat Bain callcullaNWns
(2)T iI lotion-waa inytat ad aye prtl(rre b the menu- de==ly van Uernative mid will acnleve
laclurcr's'r rXetMntlon in met fe'tl assembly. muivalerle ImprOy¢p�lergY CanXrvation cerarmance
703.0 Air Infllteratlwl oral dxakage levels achieved 4r the sfartlartls above.
(A) Exterior IOima aroUM windows M door frames, SECTION 2.This.ordinance shell become effective upon
lOinre betnaeri'all el Dlaaa M roVMatlOhs,openfnes at the dare M its POlailatian arq shag be va(labta antl apply ro
sure of WIlily sery ce:fhraueh walls,doors and roofs; all plans for idemial came uctim ntl motlelbg hich
all o1M�uUcIn openiras 1n Ill building envelope shall be have net re i d b.11i Permits as Of Me data Of Its 09Y
led, Iketl,gasklXed,or wealheirnVO pe I to limit airsane'
leakage. Passed by the City Council Of Slit Lake City,Utah,this
(BI Exterior doors shall be provided will gasketing 2rM day Of March,1'/II.
weainerstrI I'a"he Mad and lamb.Pairs of doors shall be S.Fonnesbeck
Provided with w.am—tripPif or astragals at Me meeting ATTEST CHAIRMAN
stile.The Mllgn M Ill door shall also Include tight-fltrira Kathryn MarsMll
weetherstriMirlg between Me door and fie throshD CITY RECORDER
(C)Vapor barriers shelf be reouhr, in walls-s+rigle- Translnilf¢d IO ,Mayor on March 9,19g2
merrltrar c��ddNrira3,an0 urwentllatad aXlta.Some accePlBble Mayor's Action:
ellivlvlan�e fliin.a am vegan barrier paint;craft Paper,and pdy- Ted Wilson
70d.0 Olazlag.' - ATTEST: MAYORi
Kathryn Marstall
CITY RECORDER
(SEAL
PTI isned:lMach 17,19112 I
A-17