Ordinance 2005-62
ORDINANCE NO. 2005-62
AN ORDINANCE OF THE CITY OF WYLIE, TEXAS, REPEALING
ORDINANCE NO. 2002-23; ADOPTING THE 2003 EDITION OF THE
INTERNATIONAL ENERGY CONSERVATION CODE AND
ADOPTING AMENDMENTS THERETO; 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 ("City Council") has
investigated and determined that it would be advantageous and beneficial to the citizens of the
City of Wylie, Texas ("Wylie") to repeal Wylie Ordinance No. 2002-23; and
WHEREAS, the City Council has investigated and determined that it would be
advantageous and beneficial to the citizens of Wylie to adopt the 2003 Edition of the
International Energy Conservation Code, with the amendments set forth below.
NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE
CITY OF WYLIE, TEXAS:
SECTION 1: Findings Incorporated. The findings set forth above are incorporated into
the body of this Ordinance as if fully set forth herein.
SECTION 2: Ordinance No. 2002-23 Reoealed. Wylie Ordinance No. 2002-23 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repealed in its entirety and replaced by this Ordinance.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No. 2002-23 shall be repealed.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. 2002-23 occurring before the effective date ofthis Ordinance.
SECTION 3: Adoption of the 2003 International Energy Conservation Code. The
International Energy Conservation Code, copyrighted by the International Code 'Council, Inc.
save and except the amendments set forth below, 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 "2003 International Energy Conservation Code"). The 2003
International Energy Conservation Code, save and except the amendments set forth herein, is
made a part of this Ordinance as if fully set forth herein. One (1) copy of the 2003 International
Energy Conservation Code, copyrighted by the International Code Council, Inc. is on file in the
office of the City Secretary of Wylie being marked and designated as the 2003 International
Energy Conservation Code.
SECTION 4: Amendment to the 2003 International Energy Conservation Code. The
2003 International Energy Conservation Code is hereby amended for the City of Wylie as set
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 1
forth in Exhibit "A", which is attached hereto and incorporated for all purposes as if fully set
forth herein.
SECTION 5: Savings/Repealing 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 2003 International Energy Conservation Code as it is
adopted herein or may be subsequently amended.
SECTION 6: 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 NOll 00 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 7: Severability. 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 anyone or more sections,
subsections, sentences, clauses, and phrases be declared unconstitutional.
SECTION 8: 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 17th day of November, 2005.
\\\\1111"111 Jo Mon
,,\,,\ 0 F W"l"
", ~ ........ Y<, '",
ATTESTED AND CORRECTLY2' ~./ ....,.<..(\~
RECORDED: g ()/ e-~ .... ~
= . SE A L : =_
_ : _ ,r~ ..
~ ,: -
- .
; ,
-; ."'... <i(l<" .-- .::;....
tp. -"..uo'- . ~'-J ,'"
",// h,!:" T't-~ ,,:,'
l!! ~- !_, ll,\\\""
t, 11 ,I , I ~,'\
Date to be published in The Wylie News - November 30. 2005
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 2
EXHIBIT" A"
Amendments to the
2003 International Energy Conservation Code
The following sections, paragraphs, and sentences of the 2003 International Energy Conservation Code
are hereby amended as follows: Standard type is text from the IECC. Underlined type is text inserted.
Lined through typo is 8elote8 toxt from the IECC. A double asterisk at the beginning of a section identifies
an amendment carried over from the 2000 edition of the code and a triple asterisk identifies a new
amendment with the 2003 edition of the code.
**Add the following section:
101.4.1.3 Alternative compliance. A buildino certified bv a national. state. or local accredited enerov
efficiency proaram and determined bv the Enerov Systems Laboratorv to be in compliance with the
enerav efficiency requirements of this section may. at the option of the Code Official. be considered in
compliance. The United States Environmental Protection Aoencv's Enerov Star Proaram certification of
enerov code eQuivalencv shall be considered in compliance.
-Delete note "a" and replace with the following:
a. These values are from ASHRAE Handbook of Fundamentals for Dallas/Ft. Worth International Airport 99.6%
Winter DB. 0.4% Summer DB. and 0.4% Summer WB: and from Local Climatological Data for Dallas-Ft. Worth
published by the National Climatic Data Center. National Oceanic and Atmospheric Administration. These values
are for the purpose of providing a uniform basis of requirements for North Central Texas. This will not preclude
licensed professionals from submitting design analyses based on site measurements or published data more specific
to the building site. Adiustments shall be permitted to reflect local climates which differ from the tabulated values.
or local weather experience determined by the code official.
**Section 502.1.1; delete exception #2 and substitute the following:
2. Buildinas located in Climate Zones 5b.
**Section 502.1.5; add the following exceptions:
Exceptions:
1. Anv alazina facina within 45 dearees of true north;
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 3
2. Anv alazina facino within 45 deorees of true south which is shaded alono its full width bv a
permanent overhana with a proiection factor of 0.3 or areater.
3. Anv fenestration with permanentlv attached screens where the screens have a rated shadino
coefficient of .6 or less.
**Section 502.2; Replace blank Table 502.2 Heating & Cooling Criteria with the following:
Table 502.2a,g
HEATING AND COOLING CRITERIA
Element Mode Type A 1 ResideRtial Type It. 2 Residential
6Yildings Detached 6YildiRgS Detached
One-Family Dwellings Two-Family Dwellings
Uo Uo
Walls Heatino or coolina 0.15 0.22
Roof/ceiling Heating or cooling 0.03 0.03
Floors over unheated Heating or cooling 0.05 0.05
spaces
Heated slab on arade Heating R-value = 6 R-value = 6
Unheated slab on Heating R-value = 0 R-value = 0
grade
Basement wall Heatina or coolina U-factor = 0.15 U-factor = 0.1 5
Crawl space wall Heating or coolino U-factor = 0.15 U-factor = 0.15
-Delete Note "a" and replace with the following:
a. The above values have been determined for all counties in the North Central Texas Council of
Governments reoion.
**Add Note "g":
o. These reauirements applv on Iv to the boundaries of conditioned space. Air conditionino eauipment
and ductwork is recommended. but not reauired. to be located within the conditioned space in North
Central Texas zones.
**Delete Figures 502.2(1-6)
-Section 502.2; Add note to Fig 502.2(7):
All counties within the North Central Texas Council of Governments reaion are desianated as
within the area of very heavy termite infestation probabilitv for purpose of uniform interpretation
of this reauirement.
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 4
***Section 502.2.2; add a second paragraph as follows:
A building demonstrating envelope compliance at least lO% better than code may utilize R6 duct
insulation in both supply and return air ducts in lieu of the insulation required by Table
503.3.3.3.
**Section 502.2.4; Delete prescriptive Tables 502.2.4(1-9) and substitute the following:
**Replace Tables 502.2.4 (1-6) with:
Table 502.2.4(1)
Prescriptive Building Envelope Requirements, Detached One-Family Dwellings, Based on Window
Area as a Percent of Gross Exterior Wall Area
% Maximum Minimum
Glazing Glazing Ceiling Exterior Floor Basement Slab Crawl
U-factor R-value wall R-value wall perimeter space
R-value R-value R-value wall
and R-value
depth
<8% 0.70 R-26 R-11 R-11 R-5 R-O R-6
<12% 0.65 R-26 R-13 R-11 R-5 R-O R-5
<15% 0.60 R-30 R-13 R-19 R-6 R-O R-7
<18% 0.52 R-30 R-13 R-19 R-6 R-O R-7
<20% 0.50 R-38 R-13 R-19 R-6 R-O R-7
<25% 0.46 R-38 R-16 R-19 R-6 R-O R-7
**Replace Tables 502.2.4 (7-9) with:
Table 502.2.4(2)
Prescriptive Building Envelope Requirements, Detached Two-Family Dwellings, Based on Window
Area as a Percent of Gross Exterior Wall Area
% Maximum Minimum
Glazing Glazing Ceiling Exterior Floor Basement Slab Crawl
U-factor R-value wall R-value wall perimeter space
R-value R-value R-value wall
and R-value
depth
<20% 0.55 R-30 R-13 R-11 R-5 R-O R-5
<25% 0.55 R-30 R-13 R-11 R-5 R-O R-5
<30% 0.47 R-38 R-13 R-19 R-7 R-O R-8
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 5
***Table 503.3.3.1 MINIMUM PIPE INSULA TION. Amend footnote "a" to read as follows:
a. For piping lenoths in excess of five (5) feet exposed to outdoor air, increase the insulation
thickness by 0.5 inch.
***Table 503.3.3.3; add footnote "e" as follows:
e. See Section 502.2.2
***Section 503.3.3.4.3; change first sentence to read as follows:
503.3.3.4.3 Sealina required. All ioints. lonoitudinal and transverse seams. and connections in
ductwork. shall be made substantiallv airtioht bv means of welds. oaskets. mastics (adhesives). mastic-
olus-embedded-fabric systems or taoes or other aooroved closure systems. {Remainder to remain
unchanaed}
***Section 602.1.6; delete last sentence of exception.
***Section 602.2 Maximum solar heat gain coefficient for fenestration products. Add the following
exceptions:
Exceptions:
1. Anv alazino facino within 45 deorees of true north;
2. Anv olazino facino within 45 deQrees of true south which is shaded alona its full width bv a
oermanent overhano with a oroiection factor of 0.3 or oreater.
3. Anv fenestration with attached screens where the screens have a rated shadino coefficient of .6
or less.
** Section 802.2; Replace blank tables 802.2 (1-4) with the completed tables provided on the
following four pages. Delete tables 802.2 (5-37).
TABLE 802.2(1)
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 6
BUILDING ENVELOPE REQUIREMENTS
WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL
AREA
ELEMENT CONDITIONN ALUE
Skylights (U-factor) 1
Slab or below-grade wall (R-value) R-O
Windows and glass doors SHGC U-factor
PF < 0.25 Any Any
0.25 ~ PF < 0.50 Any Any
PF > 0.50 Any Any
Roof assemblies (R-value) Insulation between Continuous insulation
framing
All-wood joist/truss R-19 R-16
Metal joist/truss R-25 R-17
Concrete slab or deck NA R-16
Metal purlin with thermal block R-25 R-17
Metal purlin without thermal block X R-17
Floors over outdoor air or Insulation between Continuous insulation
unconditioned space (R-value) framina
All-wood joist/truss R-11 R-6
Metal joist/truss R-11 R-6
Concrete slab or deck NA R-6
Above-grade walls (R-value) No framina Metal framina Wood framing
Framed
R-value cavity NA R-11 R-11
R-value continuous NA R-O R-O
CMU, > 8 in., with inteoral insulation
R-value cavity NA R-O R-O
R-value continuous R-O R-O R-O
Other masonry walls
R-value cavity NA R-O R-O
R-value continuous R-O R-O R-O
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 7
TABLE 802.2(2)
BUILDING ENVELOPE REQUIREMENTS
WINDOW AND GLAZED DOOR AREA OVER 10 PERCENT BUT NOT GREATER THAN 25
PERCENT OF ABOVE-GRADE WALL AREA
ELEMENT CONDITIONN ALUE
Skylights (U-factor) 1
Slab or below-arade wall (R-value) R-O
Windows and glass doors SHGC U-factor
PF < 0.25 0.6 Any
0.25 ~ PF < 0.50 0.7 Anv
PF > 0.50 Any Any
Roof assemblies (R-value) Insulation between Continuous insulation
framina
All-wood joist/truss R-25 R-19
Metal joist/truss R-25 R-20
Concrete slab or deck NA R-19
Metal purlin with thermal block R-30 R-20
Metal purlin without thermal block X R-20
Floors over outdoor air or Insulation between Continuous insulation
unconditioned space (R-value) framina
All-wood joist/truss R-11 R-6
Metal joist/truss R-11 R-6
Concrete slab or deck NA R-6
Above-grade walls (R-value) No framing Metal framing Wood framing
Framed
R-value cavity NA R-11 R-11
R-value continuous NA R-O R-O
CMU, > 8 in., with inteoral insulation
R-value cavity NA R-11 R-11
R-value continuous R-5 R-O R-O
Other masonry walls
R-value cavity NA R-11 R-11
R-value continuous R-5 R-O R-O
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 8
TABLE 802.2(3)
BUILDING ENVELOPE REQUIREMENTS
WINDOW AND GLAZED DOOR AREA OVER 25 PERCENT BUT NOT GREATER THAN 40
PERCENT OF ABOVE-GRADE WALL AREA
ELEMENT CONDlTIONN ALUE
Skylights (U-factor) 1
Slab or below-grade wall (R-value) R-O
Windows and glass doors SHGC U-factor
PF < 0.25 0.4 0.7
0.25 ~ PF < 0.50 0.5 0.7
PF > 0.50 0.6 0.7
Roof assemblies (R-value) Insulation between Continuous insulation
framing
All-wood joist/truss R-25 R-19
Metal joist/truss R-25 R-20
Concrete slab or deck NA R-19
Metal purlin with thermal block R-30 R-20
Metal purlin without thermal block X R-20
Floors over outdoor air or Insulation between Continuous insulation
unconditioned space (R-value) framing
All-wood joist/truss R-11 R-6
Metal joist/truss R-11 R-6
Concrete slab or deck NA R-6
Above-grade walls (R-value) No framing Metal framing Wood framing
Framed
R-value cavity NA R-11 R-11
R-value continuous NA R-O R-O
CMU, > 8 in., with inteQral insulation
R-value cavity NA R-11 R-11
R-value continuous R-5 R-O R-O
Other masonry walls
R-value cavity NA R-11 R-11
R-value continuous R-5 R-O R-O
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 9
TABLE 802.2(4)
BUILDING ENVELOPE REQUIREMENTS
WINDOW AND GLAZED DOOR AREA OVER 40 PERCENT BUT NOT GREATER THAN 50
PERCENT OF ABOVE-GRADE WALL AREA
ELEMENT CONDITIONN ALUE
Skvliahts CU-factor) 1
Slab or below-grade wall (R-value) R-O
Windows and glass doors SHGC U-factor
PF < 0.25 0.4 0.7
0.25 ~ PF < 0.50 0.5 0.7
PF > 0.50 0.6 0.7
Roof assemblies (R-value) Insulation between Continuous insulation
framina
All-wood joist/truss R-25 R-19
Metal joist/truss R-25 R-20
Concrete slab or deck NA R-19
Metal purlin with thermal block R-30 R-20
Metal purlin without thermal block R-38 R-20
Floors over outdoor air or Insulation between Continuous insulation
unconditioned space (R-value) framina
All-wood joist/truss R-11 R-6
Metal joist/truss R-11 R-6
Concrete slab or deck NA R-6
Above-arade walls (R-value) No framing Metal framing Wood framing
Framed
R-value cavity NA R-13 R-11
R-value continuous NA R-3 R-O
CMU, > 8 in., with integral insulation
R-value cavity NA,NA R-11 R-11
R-value continuous R-5 R-O R-O
Other masonry walls
R-value cavity NA R-11 R-11
R-value continuous R-5 R-O R-O
***Add footnote "r'to SHGC column heading in Tables 802.2 (2), 802.2 (3) and 802.2 (4) to read as
follows:
f. Minimum SHGC requirements do not apply to glazing as follows:
1. Any glazing facing within 45 degrees of true north.
2. Any glazing facing within 45 degrees of true south which is shaded along its full width
by a permanent overhang with a projection factor of 0.30 or greater.
3. Any glazing with permanent attached screens where the screens have a rated shading
coefficient of 0.60 or less.
**Section 805.2.1 Interior Lighting Controls; add a third sentence to read:
Laroe soaces shall have a seoarate switch or control for each 2500 square feet of floor area.
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 10
**Delete Figures 902.1 (1-43, 45-51).
** Chapter 10; Replace referenced standard as follows:
ASHRAE 90.1--2001 Energy Standard for Buildings Except Low-Rise
Residential Buildings
Eneroy Efficient Desion of New Buildinos Exceot Low-Rise Residential Buildinos
-- 1999 Edition
ASHRAE/lES -- 99
Chapter 10 - Referenced Standards: Under the heading ASHRAE and IESNA, change the Standard
Reference Number from 90.1-2001 to 90.1-1999.
END
Ordinance No. 2005-62
Repealing Ordinance No. 2002-23; Adopting the 2003 Edition
of the International Energy Conservation Code Ordinance
410000-v2
Page 11