Ordinance 2008-13
..~F~ ORDINANCE NO. 2008-13
AN ORDINANCE OF THE CITY OF WYLIE, TEXAS, REPEALING
ORDINANCE NO. 2005-62; ADOPTING THE 2006 EDITION OF THE
INTERNATIONAL ENERGY CONSERVATION CODE, SAVE AND
EXCEPT THE DELETIONS AND AMENDMENTS SET FORTH
HEREIN; PROVIDING FOR A PENALTY FOR THE VIOLATION OF
THIS ORDINANCE; PROVIDING FOR REPEALING, SAVINGS AND
SEVERABILITY CLAUSES; PROVIDING FOR AN EFFECTIVE
DATE OF THIS ORDINANCE; AND PROVIDING FOR THE
PUBLICATION OF THE CAPTION HEREOF.
WHEREAS, the City Council of the City of Wylie, Texas ("Citv Council") has
investigated and determined that it would be advantageous and beneficial to the citizens of the
City of Wylie, Texas ("W.~") to repeal Wylie Ordinance No. 2005-62; and
WHEREAS, the City Council has investigated and determined that it would be
advantageous and beneficial to the citizens of Wylie to adopt the 2006 Edition of the
International Energy Conservation Code, save and except the deletions and amendments set forth
below.
NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE
CITY OF WYLIE, TEXAS:
SECTION 1: Findin s~ Incorporated. The findings set forth above are incorporated into
the body of this Ordinance as if fully set forth herein.
SECTION 2: Ordinance No. 2005-62 Repealed. Wylie Ordinance No. 2005-62 is
repealed in its entirety and replaced by this Ordinance. The effective date of the repeal discussed
in this Section shall not occur until the effective date of this Ordinance at which time Ordinance
No. 2005-62 shall be repealed. Such repeal shall not abate any pending prosecution and/or
lawsuit or prevent any prosecution and/or lawsuit from being commenced for any violation of
Ordinance No. 2005-62 occurring before the effective date of this Ordinance.
SECTION 3: Adoption of the 2006 International Energy Conservation Code. The
International Energy Conservation Code, copyrighted by the International Code Council, Inc.,
save and except the amendments set forth in Exhibit "A", attached hereto and incorporated
herein for all purposes, is hereby adopted as the Energy Conservation Code for Wylie,
prescribing regulations applicable to all existing residential and nonresidential structures and all
existing premises and constitutes minimum requirements and standards for energy conservation
(the "2006 International Energy Conservation Code"). The 2006 International Energy
Conservation Code is made a part of this Ordinance as if fully set forth herein. One (1) copy of
the 2006 International Energy Conservation Code is on file in the office of the City Secretary of
Wylie being marked and designated as the 2006 International Energy Conservation Code.
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 1
507241.v l
d~., SECTION 4: Savin sg /Re ealin~ Clause. All provisions of any ordinance in conflict with
this Ordinance are hereby repealed to the extent they are in conflict; but such repeal shall not
abate any pending prosecution for violation of the repealed ordinance, nor shall the repeal
prevent a prosecution from being commenced for any violation if occurring prior to the repeal of
the ordinance. Any remaining portion of conflicting ordinances shall remain in full force and
effect. A reference in any ordinance to an earlier or different version of an energy conservation
code is hereby amended to refer to the 2006 International Energy Conservation Code as it is
adopted herein or may be subsequently amended.
SECTION 5: Penalty Provision. Any person, firm, corporation or entity violating this
Ordinance shall be deemed guilty of a misdemeanor, and upon conviction thereof shall be
subject to a fine not to exceed the sum of TWO THOUSAND AND NO/100 DOLLARS
($2,000.00). Each continuing day's violation under this Ordinance shall constitute a separate
offense. The penal provisions imposed under this Ordinance shall not preclude Wylie from
filing suit to enjoin the violation. Wylie retains all legal rights and remedies available to it
pursuant to local, state and federal law.
SECTION 6: Severabilitv. If any section, subsection, sentence, clause or phrase of this
Ordinance is for any reason, held to be unconstitutional or invalid by a court of competent
jurisdiction, such decision shall not affect the validity of the remaining portions of this
Ordinance. Wylie hereby declares that it would have passed this Ordinance, and each section,
subsection, clause or phrase thereof, irrespective of the fact that any one or more sections,
"`"w` subsections, sentences, clauses, and phrases be declared unconstitutional.
SECTION 7: Effective Date. This Ordinance shall become effective upon its passage and
publication as required by the City Charter and by law.
DULY PASSED AND APPROVED BY THE CITY COUNCIL OF THE CITY OF
WYLIE, TEXAS, on this 25th day of March, 2008.
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ATTESTED AND CORRECTLY
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Carole hrlich, City Secretary `°°°m,••~••°~P~
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_ Date of publication in The Wvlie News -April 2 2008
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 2
507241.vi
Exhibit "A"
Amendments to the
2006 International Energy Conservation Code
North Central Texas Council of Governments region
The following sections, paragraphs, and sentences of the 2006 International Ener~ Conservation Code are hereby
amended as follows: Standard type is text from the IECC. Underlined tvpe is text inserted. '~^°a
a°'°+°a T~'''~' A double asterisk at the beginning of a section identifies an amendment carried over from
the 2003 edition of the code and a triple asterisk identifies a new or revised amendment with the 2006 code.
***Amend Section 101.4.2 Historic Buildings to read as follows:
101.4.2 Historic Buildings. Any building or structure that is listed in the State or National Register of Historic
Places; designated as a historic properiy under local or state designation law or survey; certified as a contributing
resource with a National Register listed or locally designated historic district; or with an opinion or certification that
the property is eligible to be listed on the National or State Registers of
Historic Places either individually or as a contributing building to a historic district by the State Historic
Preservation Officer of the Keeper of the National Register of Historic Places, °r° °°°m^* shall comply with all
of the provisions of this code.
Exception• Whenever a provision or provisions shall invalidate or jeopardize the historical designation or
listin ,~provision or provisions mav be exempted.
(Reason: This is less restrictive than the legislative mandates. It is reasonable to expect compliance with duct
sealing replacement lighting and the installation of insulation, for example, when possible.)
***Amend Section 103.1.1 Above code programs. to read as follows:
103.1.1 Alternative comqliance. A building certified bv a national state or local accredited enerev efficiency
pro~ram and determined bv the Enere~ystems Laboratorv to be in compliance with the energ~y efficiency
requirements of this section may at the option of the Code Official be considered in compliance The United States
Environmental Protection Agencv's Energy Star Program certification of energy code equivalencv shall be
considered in compliance.
(Reason: This amendment is added to allow alternative compliance in accordance with Texas HB 1365, 7gtn
Legislature.)
***Amend SECTION 202 GENERAL DEFINITIONS by adding thefollowing definition:
GLAZING AREA. Total area of the elazed fenestration measured usine the roueh openin~ and including sash
curbing or other framing elements that enclose conditioned space Glazin~ area includes the area
of~lazed fenestration assemblies in walls boundin~ conditioned basements For doors where the da
l~i~pening
area is less that 50 percent of the door area the ~lazin~ area is the da
li~~ht openin~ area For all other doors the
Qlazin~ area is the rou~penin~ area for the door includinp the door and the frame
~ (Reason: Since the window to wall area ratios have been added to the prescriptive tables, it is necessary to define
glazing area.)
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 3
507241.v1
***Amend Section 301.1 to read as follows:
301.1 GeneraL Climate zones from Figure 301.1, FiFUre 301.2, e~ Table 301.1(1), Table 301.2(1), or Table 301.3~3)
shall be used in determining the applicable requirements from Chapters 4& 5. Locations not in Table 301.1 (outside
the US) shall be assigned a climate zone based on Section 3013.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77th Legislature.)
***Add FIGURE 301.2 -TEXAS CLIMATE ZONES immediately following Figure 301.1:
DRY (B) MOIST {A)
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FIGURE 301.2: TEXAS CLIMATE ZONES
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77~' Legislature.)
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 4
507241.v 1
***Amend TABLE 301.1 by deleting the references to Texas and add TABLE 301.1(1) CLIMATE ZONES AND
SUB CLIMATE ZONES FOR TEXAS:
TABLE 301.1(1) CLIMATE ZONES AND SUB CLIMATE ZONES FOR TEXAS
Zone 2
ANDERSON 2.2 DE WITT 2.1 JIM HOGG 2.1 ORANGE 2.2
ANGELINA 2.2 DIMMIT 21 JIM WELLS 2.1 POLK 2.2
ARANSAS 2.1 DUVAL 2.1 KARNES 2.1 REAL 2.2
ATASCOSA 2.1 EDWARDS 2.2 KENEDY 2.1 REFUGIO 2.1
AUSTIN 2.2 FALLS 22 KINNEY 2.2 ROBERTSON 2.2
BANDERA 2.2 FAYETTE 2.2 KLEBERG 2.1 SAN JACINTO 2.2
BASTROP 2.2 FORT BEND 2.2 LA SALLE 2.1 SAN PATRICIO 2.1
BEE 2.1 FREESTONE 2.2 LAVACA 2.2 STARR 2.1
BELL 2.2 FRIO 2.1 LEE 22 TRAVIS 2.2
BEXAR 2.2 GALVESTON 21 LEON 2.2 TRINITY 2.2
BOSQUE 2.2 GOLIAD 2.1 LIBERTY 22 TYLER 2.2
BR~IZORIA 2.1 GONZALES 2.2 L[MESTONE 2.2 UVALDE 2.2
BRAZOS 2.2 GRIMES 22 LIVE OAK 2.1 VAL VERDE 2.2
BROOKS 2.1 GUADALUPE 22 MADISON 22 VICTORIA 2.1
BURLESON 2.2 HARDIN 2.2 MATAGORDA 2.1 WALKER 2.2
CALDWELL 22 HARRIS 2.2 MAVERICK 2.1 WALLER 2.2
CALHOUN 2.1 HAYS 2.2 MCLENNAN 2.2 WASHINGTON 2.2
CAMERON 2.1 HIDALGO 2.1 MCMULLEN 2.1 WEBB 2.1
CHAMBERS 2.2 HILL 2.2 MEDINA 2.2 WHARTON 2.1
CHEROKEE 2.2 HOUSTON 22 MILAM 2.2 WILLACY 2.1
COLORADO 2.2 JACKSON 2.1 MONTGOMERY 22 WILLIAMSON 22
COMAL 22 JASPER 2.2 NEWTON 2.2 WILSON 2.2
CORYELL 22 JEFFERSON 22 NUECES 2.1 ZAPATA 2.1
Zone 3
ANDREWS 3.2 EL PASO 3.2 KERR 3.1 ROCKWALL 3.2
ARCHER 3.3 ELLIS 3.2 KIMBLE 3.1 RUNNELS 3.2
BAYLOR 3.3 ERATH 3.2 KING 3.3 RUSK 3.2
BLANCO 3.1 FANN[N 32 KNOX 3.3 SABINE 3.2
BORDEN 33 F?SHER 3.2 LAMAR 3.2 SAN AUGUSTINE 32
BOWIE 3.2 FOARD 3.3 LAMPASAS 3.2 SAN SABA 3.2
BREWSTER 3.1 FRANKLIN 3.2 LLANO 3.1 SCHLEICHER 3.1
BROWN 3.2 GAINES 3.3 LOVING 3.2 SCURRY 3.3
BURNET 3.1 GARZA 3.3 LUBBOCK 33 SHACKELFORD 32
CALLAHAN 32 GILLESPIE 3.1 LYNN 33 SHELBY 3.2
CAMP 3.2 GLASSCOCK 3.2 MARION 3.2 SMITH 3.2
CASS 3.2 GRAYSON 3.2 MARTIN 3.2 SOMERVELL 32
CHILDRESS 33 GREGG 3.2 MASON 31 STEPHENS 3.2
CLAY 33 HALL 3.4 MCCULLOCH 3.2 STERLING 32
COKE 32 HAMILTON 32 MENARD 3.1 STONEWALL 3.3
COLEMAN 3.2 HARDEMAN 3.3 MIDLAND 32 SUTTON 3.1
COLLIN 3.2 HARRISON 32 MILLS 3.2 TARRANT 3.2
COLL[NGSWORTH 33 HASKELL 3.2 MITCHELL 3.2 TAYLOR 32
COMANCHE 32 HEMPHILL 3.4 MONTAGUE 3.2 TERRELL 3.1
CONCHO 3.2 HENDERSON 32 MORRIS 3.2 TERRY 3.3
COOKE 32 HOOD 3.2 MOTLEY 3.3 THROCKMORTON 3.2
COTTLE 3.3 HOPKINS 32 NACOGDOCHES 3.2 TITUS 3.2
CRANE 32 HOWARD 3.2 NAVARRO 3.2 TOM GREEN 3.2
CROCKETT 3.1 HUDSPETH 3.2 NOLAN 3.2 UPSHUR 3.2
CROSBY 33 HUNT 3.2 PALO PINTO 3.2 UPTON 3.2
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 5
507241.v1
CULBERSON 3.2 IRION 3.2 PANOLA 3.2 VAN ZANDT 3.2
DALLAS 3.2 JACK 3.2 PARKER 3.2 WARD 3.2
DAWSON 3.3 JEFF DAVIS 3.2 PECOS 32 WHEELER 3.4
DELTA 3.2 JOHNSON 3.2 PRESIDIO 3.1 W1CH[TA 3.3
DENTON 3.2 JONES 32 RA[NS 3.2 WILBARGER 3.3
DICKENS 3.3 KAUFMAN 3.2 REAGAN 32 WINKLER 3.2
EASTLAND 3.2 KENDALL 3.1 RED RNER 3.2 WISE 3.2
ECTOR 3.2 KENT 3.3 REEVES 3.2 WOOD 3.2
YOUNG 3.2
Zone 4
ARMSTRONG DEAF SMITH HOCKLEY PARMER
BAILEY DONLEY HUTCHINSON POTTER
BRISCOE FLOYD LAMB RANDALL
CARSON GRAY LIPSCOMB ROBERTS
CASTRO HALE MOORE SHERMAN
COCHRAN HANSFORD OCHILTREE SWISHER
DALLAM HARTLEY OLDHAM YOAKUM
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77'~' Legislature.)
Amend TABLE 301.2 by deleting the references to Texas and add TABLE 301.2(1) WARM HUMID
COUNTIES FOR TEXAS
TABLE 301.2(1) WARM HUMID COUNTIES FOR TEXAS
ANDERSON 2.2 DUVAL 2.1 KAUFMAN 3.2 RED RNER 3.2
ANGELINA 2.2 EDWARDS 2.2 KENDALL 3.1 REAL 2.2
ARANSAS 2.1 ELLIS 32 KENEDY 2.1 REFUGIO 2.1
ATASCOSA 2.1 ERATH 32 KINNEY 22 ROBERTSON 2.2
AUST[N 2.2 FALLS 2.2 KLEBERG 2.1 ROCKWALL 32
BANDERA 2.2 FAYETTE 22 LA SALLE 2.1 RUSK 3.2
BASTROP 2.2 FORT BEND 22 LAMAR 3.2 SABINE 3.2
BEE 2.1 FRANKLIN 32 LAMPASAS 3.2 SAN AUGUST[NE 3.2
BELL 2.2 FREESTONE 22 LAVACA 2.2 SAN JACINTO 2.2
BEXAR 2.2 FRIO 2.1 LEE 22 SAN PATRICIO 2.1
BLANCO 3.1 GALVESTON 2.1 LEON 2.2 SAN SABA 32
BOSQUE 2.2 GILLESPIE 3.1 LLANO 3.1 SHELBY 32
BOWIE 32 GOLIAD 2.l LIBERTY 2.2 SMITH 3.2
BRAZORIA 2.1 GONZALES 2.2 LIMESTONE 2.2 STARR 21
BROWN 3.2 GREGG 3.2 LIVE OAK 2.1 SOMMERVELL 3.2
BRAZOS 2.2 GRIMES 2.2 MADISON 22 TARRANT 3.2
BROOKS 2.1 GUADALUPE 2.2 MARION 3.2 TITUS 3.2
BURLESON 22 HAMILTON 3.2 MATAGORDA 2.1 TRAVIS 2.2
BURNET 3.1 HARDIN 22 MAVERICK 2.1 TRINITY 2.2
CALDWELL 2.2 HARRIS 2.2 MCLENNAN 2.2 TYLER 22
CALHOUN 2.1 HARRISON 3.2 MCMULLEN 2.1 UPSHUR 32
CAMERON 2.1 HAYS 2.2 MEDINA 2.2 UVALDE 2.2
CHAMBERS 2.2 HENDERSON 3.2 M[LAM 22 VAL VERDE 2.2
CAMP 3.2 HIDALGO 2.1 MILLS 3.2 VAN ZANDT 3.2
CASS 3.2 HOOD 3.2 MONTGOMERY 2.2 VICTORIA 2.1
CHEROKEE 22 HOPKINS 3.2 MORRIS 3.2 WALKER 2.2
COLLIN 3.2 HILL 2.2 NACOGDOCHES 3.2 WALLER 22
COLORADO 2.2 HOUSTON 2.2 NAVARRO 3.2 WASHINGTON 22
COMAL 22 HUNT 3.2 NEWTON 2.2 WEBB 2.1
COMANCHE 3.2 JACKSON 2.1 NUECES 2.1 WHARTON 2.1
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 6
507241.v1
CORYELL 2.2 JASPER 2.2 ORANGE 2.2 WILLACY 2.l
DALLAS 3.2 JEFFERSON 22 PALO PINTO 3.2 WILLIAMSON 2.2
DELTA 3.2 JIM HOGG 2.1 PANOLA 3.2 WILSON 22
DENTON 3.2 JIM WELLS 2.1 PARKER 3.2 WOOD 3.2
DE WITT 2.1 JOHNSON 3.2 POLK 22 ZAPATA 2.1
DIMM[T 2.1 KARNES 2.1 RAINS 3.2 ZAVALA 2.1
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77'~' Legislature.)
***Add Section 401.2.1. Compliance software tools. to read as follows:
401.2.1. Compliance software tools. Software tools used to demonstrate ener~v code compliance that are deemed
acceptable bv the buildin~ official. The PNL proeram RES Check is not acceptable for residential compliance.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77`~' Legislature.)
***Amend Section 402.1.1 Insulation and fenestration criteria. to read as follows:
402.1.1 Insulation and fenestration criteria. The building thermal envelope shall meet the requirements of Table
402.1.1 based on the climate zone specified in Chapter 3. The use of REScheckTM shall not be an acceptable means
of demonstratin~ envelope compliance.
When compliance usin~ Table 402.1.1 is demonstrated with a ceiling R-value of R30 or less, no more than 33% of
the total projected ceilin~ area mav be of cathedral type construction (ceilin~joist/roof rafter assemblv) and the
required insulation R-value mav be reduced to a minimum of R22 insulation when the remainin c~_~
insulation is increased to R38.
(Reason: The use of REScheckT"' to demonstrate energy code compliance does not satisfy the "less restrictive"
requirement imposed by SBS, 77`i' Legislature.
This amendment is compatible with the previous amendments increasing the number of builders who could use the
"simplified prescriptive" approach of the IRC and incorporates the Home Builder Association prescriptive package
proposal. The addition of "Ceiling Joist/Roof Rafter Assembly" requirements protect such assemblies from the
damage likely to occur if greater amounts of insulation were attempted in such assemblies.)
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 7
so72a~.~~
Replace TABLE 402.1.1 1NSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT
to read as follows:
TABLE 402.1.1
INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT TEXAS)a
MAX
GLAZED MASS
CLIMATE AREA TO MAX MAX WALL MIN MIN MIN
- SUB WALL GLAZED SKYLIGHT MAX GLAZED MIN MIN WOOD R- FLOOR BASEMENT MIN SLAB CRAWL SPACE
FRAME WALL
CLIMATE AREA FENESTRATION U- FENESTRATION CEILING VALUE N- WALL 2-VALUE WALL
ZONE RATIO U-FACTOR FACTOR" SHGC R-VALUE X-VALUE d VALUE R-VALUE & DEPTH` X-VALUE
15 0.75 0.75 0.38 19 13 6 19 0 0 5
2~ 20 0.70 0.75 0.38 30 13 6 19 0 0 5
25 0.65 0.75 035 30 13 6 19 0 0 5
30 0.54 0.75 035 38 13 6 19 0 0 5
15 0.65 0.75 0.38 30 13 6 19 5 0 6
20 0.65 0.75 0.38 38 13 6 19 6 0 6
2.2
25 0.54 0.75 0.35 38 13 6 19 8 0 10
30 0.46 0.75 0.35 38 16, 13 + 3.7e 6 19 8 0 10
15 0.65 0.65 0.40 30 13 6 19 5 0 6
20 0.55 0.65 0.40 38 13 6 19 5 0 6
3.1
25 0.54 0.65 0.35 38 13 6 19 8 0 10
30 0.46 0.65 0.35 3g 16, 13+3.7e ~ 19 8 0 ]0
15 0.60 0.65 0.40 30 13 6 19 6 0 7
20 0.54 0.65 0.40 38 13 6 19 6 0 7
3'2 25 0.51 0.65 0.40 38 e 7 19 6 0 7
16, 13 + 3.7
N"~ 30 0.46 0.65 038 38 16 ~ 3+ 3 ~e 7 19 6 0 7
15 0.51 0.65 0.40 30 13 6 19 7 0 8
20 0.45 0.65 0.40 38 13 6 19 7 0 9
3'3 25 0.40 0.65 0.40 38 e 7 19 7 0 9
]6, 13+3.7
30 0.40 0.65 0.40 38 19, 13 + g.l e 9 l9 7 0 9
15 0.45 0.60 NR 38 13 6 19 8 5, 2 ft 11
20 0.37 0.60 NR 38 13 6 19 8 6, 2 ft 13
3.4 25 0.37 0.60 NR 38 e 9 19 8 6, 2 ft 13
19, 13+g.1
30 0.37 0.60 NR 38 19, 13 +$.1 e 9 30 8 6, 2 ft 13
IS 0.45 0.60 NR 38 13 8 19 8 5, 2 ft 1 l
20 0.37 0.60 NR 38 13 8 19 9 6, 2 ft 13
4 25 0.37 0.60 NR 38 e 10 19 9 6, 2 ft 13
19, 13 + g.l
30 037 0.60 NR 38 ~ q, ~ 3+ g.le 10 30 9 6, 2 ft 13
For S1: 1 foot = 304.8 mm.
a. R-values are minimums. U-factors and SHGC are maximums. R-19 shall be permitted to be compressed into a 2 x 6 cavity.
b. The fenestration U-factor column excludes skylights. The SHGC column applies to all glazed fenestration.
c. R-5 shall be added to the required slab edge R-values for heated slabs.
d. The total R-value may be achieved with a combination of cavity insulation and insulating sheathing that covers 100% of the exterior
wall.
e. The wall insulation may be the sum of the two values where the first value is the cavity insulation and the second value is insulating
sheathing. The combination of cavity insulation plus insulating sheathing may be used where structural sheathing covers not more
than 25% of the exterior wall area and insulating sheathing is not required where structural sheathing is used. If structural sheathing
covers more than 25% of exterior wall area then the wall insulation requirement may only be satisfied with the single insulation value.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subseGuent
editions of energy codes in accordance with Texas SB 5, 77~' Legislature.)
Ordinance No. 2008-] 3
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 8
507241.v1
Replace TABLE 402.1.3 EQUIVALENT U-FACTORS to read as follows:
TABLE 402.1.3
EQUIVALENT U-FACTORSe
MAX
MAX MAX CRAWL
CLIMATE - GLAZED MAX MASS MAX SPACE
SUB AREATO GLAZED MAX MAX MAX WOOD WALL MAX BASEMENT WALL
CLIMATE WALL AREA FENESTRATION SKYLIGHT CEILING FRAM6 WALL U- FLOOR WALL U-FACTOR
ZONE RATIO U-FACTOR U-FACTOR U-FACTOR U-FACTOR FACTOR U-FACTOR U-FACTOR
15 0.75 0.75 0.039 0.082 0.124 0.047 0.360 0.136
Z 1 20 0.70 0.75 0.034 0.082 0.124 0.047 0360 0.136
25 0.65 0.75 0.034 0.082 0.124 0.047 0.360 0.136
30 0.54 0.75 0.030 0.082 0.124 0.047 0360 0.136
IS 0.65 0.75 0.034 0.082 0.124 0.047 0.210 0.100
2 2 20 0.65 0.75 0.030 0.082 0.124 0.047 0.210 0.100
25 0.54 0.75 0.030 0.082 0.124 0.047 0.119 0.065
30 0.46 0.75 0.030 0.071 0.124 0.047 0.119 0.065
I S 0.65 0.65 0.034 0.082 0.124 0.047 0.210 0.100
3~ 20 0.55 0.65 0.030 0.082 0.124 0.047 0.210 0.100
25 0.54 0.65 0.030 0.082 0.124 0.047 0.119 0.065
30 0.46 0.65 0.030 0.071 0.112 0.047 0.119 0.065
15 0.60 0.65 0.034 0.082 0.124 0.047 0.179 0.0'75
3 2 20 0.54 0.65 0.030 0.082 0.124 0.047 0.179 0.075
25 0.51 0.65 0.030 0.071 0.112 0.047 0.179 0.075
30 0.46 0.65 0.030 0.071 0.112 0.047 0.179 0.075
15 0.51 0.65 0.034 0.082 0.124 0.047 0.149 0.061
33 ZO 0.45 0.65 0.030 0.082 0.124 0.047 0.149 0.058
25 0.40 0.65 0.030 0.075 0.112 0.047 0.149 0.058
30 0.40 0.65 0.030 0.061 0.094 0.047 0.149 0.058
15 0.45 0.60 0.030 0.082 0.124 0.047 0.119 0.083
3 4 20 037 0.60 0.030 0.082 0.124 0.047 O.ll9 0.152
25 037 0.60 0.030 0.061 0.094 0.047 O.ll9 0.152
30 0.37 0.60 0.030 0.061 0.094 0.033 0.119 0.152
15 0.45 0.60 0.030 0.082 0.102 0.047 0.119 0.083
q 20 037 0.60 0.030 0.082 0.102 0.047 0.089 0.152
25 0.37 0.60 0.030 0.061 0.087 0.047 0.089 0.152
30 037 0.60 0.030 0.061 0.087 0.033 0.089 0.152
a. Nonfenestration U-factors shall be obtained from measurement, calculation or an approved source.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77`~' Legislature.)
***Add Section 402.2.11. Insulation installed in walls. to read as follow:
Section 402.2.11. Insulation installed in walls. Insulation batts installed in walls shall be totallv surrounded by an
enclosure on all sides consisting of framing lumber, gypsum, sheathing wood structural panel sheathing or other
equivalent material approved by the buildine official.
(Reason: This will increase the performance of the batt insulation by eliminating the potential for drafts and insure
that the batt insulation stays in place)
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 9
507241.v 1
***Amend Section 402.3.2 Glazed fenestration SHGC. to read as follows:
402.3.2 Glazed fenestration SHGC. An area-weighted average of fenestration products more than 50 percent
glazed shall be permitted to satisfy the SHGC requirements. In sub climate zones 2.1, 2.2, 3.1, 3.2 and 3.3 the
maximum area-wei~hted average and the maximum SHGC shall not exceed 0.40.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77`~' Legislature.)
***Amend Section 402.3.3 Glazed fenestration exemption. to read as follows:
402.3.3 Glazed fenestration exemption. Up to '~°^„°r° 1 percent of glazed fenestration per
dwelling unit shall be permitted to be exempt from U-factor and SHGC requirements in Section 402.1.1.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77`'' Legislature.)
***Amend Section 402.3.5 Thermally isolated sunroom U-factor. to read as follows:
Section 402.3.5 Thermally isolated sunroom l~-fae~. ~ ° n*wr^„^~, 4*~,° m~^°°*r°*:^^ ^*^r
,
~.o n cn .,.,a .~.o F,.+,,,. ~ti.,>> ~,o n~c New windows and doors separating the sunroom
from conditioned space shall meet the building thermal envelope requirements.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77`~' Legislature.)
***Amend Section 402.3.6 Replacement fenestration. to read as follows:
Section 402.3.6 Replacement fenestration. Where some or all of an existing fenestration unit is replaced with a
new fenestration product, including sash and glazing, the replacement fenestration unit shall meet the applicable
requirements for U-factor °^a~ in Table 49~~ 402.3.7.
Exceptions:
1. Replacement skvlights shall have a maximum U-factor for 0.60 when installed in all sub climate zones
except for 2.1.
2. For buildin~s constructed in conformance with an energy code as required by State of Texas Senate Bill
Number 5, 77`h Le~islature, replacement fenestration units ma~omplY with the original construction
documents or applicable U-factor in Table 402.1.1.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accardance with Texas SB 5, 77`h Legislature and to provide for reasonable compliance
for structures built after the adoption of codes in accordance with SB 5, 77T" Legislature.)
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 10
507241.v1
***Add Section 402.3.7 Prescriptive path for additions. to read as follows:
Section 402.3.7 Prescriptive path for additions. As an alternative for demonstratin~ compliance, additions with a
conditioned floor area less than 500 square feet (46.5 m2) to existin~ single-familv residential buildines and
structures shall meet the ~rescriptive envelo~e com~onent criteria in Table 402.3.7 for the sub climate zone
applicable to the location. The U-factor of each individual fenestration product (windows, doars and sk~ghts) shall
be used to calculate and area-weighted avera~e fenestration product U-factor for the addition, which shall not exceed
the a~plicable listed values in Table 402.3.7. For additions, other than sunroom additions, the total area of
fenestration products shall not exceed 40 percent of the gross wall and roof area of the addition. The R-values for
opaque thermal envelope components shall be equal to or ereater than the applicable listed values in Table 402.3.7.
Conditioned sunroom additions shall maintain thermal isolation; shall not be used as kitchens or sleepin rooms.
In sub climate zones 2.1, 2.2, 3.1, 3.2 and 3.3, the combined solar heat ~ain coefficient (the area wei~hted avera~e)
of all ~lazed fenestration products used in additions and as replacement windows in accordance with this section
shall not exceed 0.40.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77`~' Legislature.)
***Add Table 402.3J PRESCRIPTIVE ENVELOPE COMPONENT CRITERIA ADDITIONS TO AND
REPLACEMENT WINDOWS FOR EXISTING DETACHED ONE- AND TWO-FAMILY DWELLINGS to
read as follows:
Table 402.3.7 PRESCRIPTIVE ENVELOPE COMPONENT CRITERIA
ADDITIONS TO AND REPLACEMENT WINDOWS FOR EXISTING DETACHED
ONE- AND TWO-FAMILY DWELLINGSd
MAXIMUM MINIMUM
SUB
CLIMATE Fenestration Ceiling Basement wall Slab perimeter Crawl space
ZONES U-factor R-value~e Wall R-value` Floor R-value R-value" R-value wall R-value
2.1 0.75 R-26 R-13 R-11 R-5 R-0 R-5
2.2, 3.1, 3.2, 3.3 0.50 R-30 R-13 R-19 R-8 R-0 R-]0
and 3.4
4 0.50 R-38 R-13 R-21 R-10 R-0 R-19
a. "Ceiling R-value" shall be required for flat or inclined (cathedral) ceilings. Floors over outside air shall meet "Ceiling R-value"
~equirements.
b. Basement wall insulation to be installed in accordance with Section 402.2.6.
a "Crawl space wall R-value" shall apply to unventilated crawl spaces only. Crawl space insulation shall be installed in accordance with
Section 402.2.8.
d. Sunroom additions shall be required to have a mvcimum fenestration U-factor of 0.5. in all sub climate zones except sub climate zone
2.1. In all sub climate zones, the minimum ceiling R-value for sunroom additions shall be R-19 and the minimum wall R-value shall
be R-13.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting subsequent
editions of energy codes in accordance with Texas SB 5, 77~'' Legislature.)
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 11
507241.v 1
***Add Exception No. 2. to Section 403.2.1. Insulation to read as follows:
Section 403.2.1. Insulation. Supply and return ducts shall be insulated to a minimum of R-8. Ducts in floor trusses
shall be insulated to a minimum of R-6.
Exceptions:
1. Ducts or portions thereof located completely inside the building thermal envelope.
2. Supply and return ducts can be insulated to a minimum of R-6, if the efficiencv of the coolinp
equipment is upgraded to one SEER point above the NAECA (National Appliance Energy
Conservation Act) Standard.
(Reason: To provide an equivalent tradeoff to permit the use of R-6 duct insulation.)
***Add Section 501.3. Compliance software tools. to read as follows:
Section 501.3. Compliance software tools. Software tools used to demonstrate enerev code compliance that are
deemed acceptable bv the building official ma
~Lv utilize the energy chapter of the 2006 International Enersv
Conservation Code or the 2004 Edition of AHSRAE 90.1 Ener~y Standard for Buildin s Except Low-rise
Residential Buildin~s when code edition and/or standard selection is available.
(Reason: The nonresidential provisions of the 2006 IECC are deemed "not less restrictive" in accordance with
Texas SB 5, 77`h Legislature.)
**Amend Section 505.2.1 Interior Lighting Controls. to read as follows:
505.2.1 Interior lighting controls. Each area enclosed by walls or floor-to-ceiling partitions shall have at least one
manual control for the lighting serving that area. The required controls shall be located within the area served by the
controls or be a remote switch that identifies the lights served and their status. Each control device shall control a
maximum of 2 500 square feet 232 26 square meters) of floor area for a snace 10 000 square feet (929 03 square
meters) or less and a maximum of 10 000 square feet (929 03 square meters) for a space greater than 10 000 square
feet 929.03 square meters).
(Reason: This change is consistent with energy conservation measures in ASHRAE 90.1 - 2004, Section 9.4.1.2 (b)
Space Control." This "zoning" is especially relevant for after-hours employees in office spaces.)
END
Ordinance No. 2008-13
Repealing Ordinance No. 2005-62; Adopting the 2006 Edition
of the International Energy Conservation Code Ordinance Page 12
507241.v1
~ CS~S Media, Inc.
"~Gfje 1F'armergbille aGirneg • Murphy Monitor • The Princeton Herald • The Sachse News • THE WYLIE NEWS
C ~
~
STATE OF TEXAS ~
~~~I~
COUNTY OF COLLIN ~
Before me, the undersigned authority, on this day personally appeared Chad Engbrock,
publisher of The Wylie News, a newspaper regularly published in Collin County, Texas and
having general circulation in Collin County, Texas, who being by me duly sworn, deposed and
says that the foregoing attached
City of Wylie - 6 Ordinances - 2008-12, 2008-13, 2008-14, 2008-15, 2008-16, 2008-17
was published in said newspaper on the following dates, to-wit:
Apri12, 200
Chad Engbrock, Publisher
~ N ~
Subscribed and sworn before me on this, the day of , 2008
to certify which witness my hand and seal of office.
,,a~o~''"•y"•"s;'~ MARY SWANK
Notary Public, State of Texas
=~r• IvlyCommissionExpires
~'%%F;;;;,~' septembar22, 20~o N tary blic in and for
The State of Texas
My commission expires a'~ 0! G
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~ ''~A`! ~ ~ 2008
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Murphy/Sachse/Wylie Office • 110 N. Ballard • P.O. Box 369 • Wylie, TX 75098 • 972-442-5515 • fax 972-442-4318
Farmersville/Princeton Office • 101 S. Main • P.O. Box 512 • Facrnersville, TX 75442 • 972-784-6397 • fax 972-782-7023
_..~-~1l ~
APri~ 2B ~ 2~ A UBLICA~- Section C- Page 3
~
p I1~TAN~E
- . 2008.13
AN RDINANCE F
TI~ OF"
TEXAS; P~SALING
'~RDINANCE PdO. 2005-
62; ADOPTII~G THE
2pp6 EDITION OF THE
INTERNATIONAL
ENERGY CONSERVA-
'rIL)N CQiDE, SAVE ANI?
~XCEpT 'T~IE , DELE-
'TIONS,,AND AM~Nb-
MENTS SET FORTH
HEREIN; PROVIDING
FOR A PENALTY FOR
THE VIOLATION OF
THIS ' ORDINANCE;
PROVIDING FOR
REP~ALING, SAVINGS
AND SEVERABILITY
CLAUSES; PROVIDING
~~QR AN EFFECTIVE
D.4`1`E OF TI~S ORDI-
NANG~; AND PR~VID-
ING FOR THE PUBLI-
CATION OF THE CAP-
TIOI~' H~
.