Ordinance 2005-64
ORDINANCE NO. 2005-64
AN ORDINANCE OF THE CITY OF WYLIE, TEXAS, REPEALING
ORDINANCE NO. 2002-24; ADOPTING THE 2003 EDITION OF THE
INTERNATIONAL RESIDENTIAL 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. 2002-24; 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 Residential 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 Incoroorated. The findings set forth above are incorporated into
the body of this Ordinance as if fully set forth herein.
SECTION 2: Ordinance No. 2002-24 Repealed. Wylie Ordinance No. 2002-24 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repealed in its entirety and replaced by this Ordinance.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No. 2002-24 shall be repealed.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. 2002-24 occurring before the effective date of this Ordinance.
SECTION 3: Adoption of the 2003 International Residential Code. The International
Residential Code, copyrighted by the International Code Council, Inc. save and except the
amendments set forth below, is hereby adopted as the Residential code for Wylie, prescribing
regulations applicable to residential structures and constitutes minimum requirements and
standards for residential construction applications (the "2003 International Residential Code").
The 2003 International Residential 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
Residential 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 Residential
Code.
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 1
SECTION 4: Amendment to the 2003 International Residential Code. The 2003
International Residential Code is hereby amended for the City of Wylie as set 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 a residential code is
hereby amended to refer to the 2003 International Residential 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 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 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.
DUL Y PASSED AND APPROVED BY THE CITY COUNCIL OF THE CITY OF
WYLIE, TEXAS, on this 17th day of November, 2005.
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Date to be published in The Wylie News - November 30. 2005
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 2
EXHIBIT "A"
Amendments to the
2003 International Residential Code
The following sections, paragraphs, and sentences of the 2003 International Residential Code are hereby
amended as follows: Standard type is text from the IRC. Underlined type is text inserted. Lined through
type is deleted text from IRe. 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 code.
**Section R102.4; change to read as follows:
R102.4 Referenced codes and standards. The codes. when specifically adopted. and standards
referenced in this code shall be considered part of the requirements of this code to the prescribed extent
of each such reference. Whenever amendments have been adopted to the referenced codes and
standards. each reference to said code and standard shall be considered to reference the amendments
as well. Any reference made to NFPA 70 or the ICC Electrical Code shall mean the Electrical Code as
adopted.
Where differences occur between provisions of this code and referenced codes and standards, the
provisions of this code shall apply.
Exception: Where enforcement. . .{remainder of exception unchanged.}. . . .
**Section R105.2; delete.
**Section R109.1.3; change to read as follows:
R1 09.1.3 Floodplain inspections. For construction permitted in areas prone to flooding as established
by Table R301.2(1), upon. . . {bulk of section unchanged} . . . construction, the building official may &AaU
require submission. . . {remainder of section unchanged}.
**Section R110 (R110.1 through R110.4); delete.
**Section R112.1; change to read as follows:
R112.1 General. The Construction Code Board of the City of Wylie created by ordinance shall hear all
appeals made regarding the application and interpretation of this code in accordance with the procedures,
policies and ordinances governing the Construction Code Board.
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 3
**Section R112.2.1 & R1112.2.2 & R112.3; delete.
**Section R202; change definition of -Townhouse- to read as follows:
TOWNHOUSE. A single-family dwelling unit constructed in a group of three or more attached units
separated by property lines in which each unit extends from foundation to roof and with open space on at
least two sides.
***Section R202; add definition of "Naturally durable wood" as follows:
NATURALLY DURABLE WOOD. The heartwood of the followino species with the exception that an
occasional piece with corner sapwood is permitted if 90 percent or more of the width of each side on
which it occurs is heartwood.
Decav resistant. Redwood. cedars. black locust and black walnut.
Termite resistant. Redwood and Eastern red cedar.
**Table R301.2(1); fill in as follows:
GROUND SNOW LOAD
5 Ib/tt
SEISMIC DESIGN CATEGOR -
A
SUBJECT TO DAMAGE FROM
Weatherin Frost line de th
moderate 6"
WINTER DESIGN ICE SHIELD UNDER- FLOOD AIR FREEZING MEAN ANNUAL
TEMP~ LAYMENT REQUIREDiJ:! HAZARDSRg INDEXti TEMpkl
220F No local code 690F 64.9OF
For SI: 1 pound per square foot = 0.0479 kN/m.02, 1 mile per hour = 1.609 km/h.
a. No revisions.
b. No revisions.
c. No revisions.
8. The jurisdiction shall fill in this part of the table with "FI1oeerate to se':er," "slight te moeerate," or
"none to slight" in accordance with Figure RJ01.2(7) depending on whether there has been 3
history of local damage.
e d. No further revisions.
f e. No further revisions.
9 1:. No further revisions.
A 9..:. No further revisions.
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance Page 4
41 001 6-v2
. !1... No further revisions.
t L No further revisions.
k L No further revisions.
***Figure R301.2(7); delete and renumber figures as needed.
**Section R302.1; add a second exception as follows:
Exception!:
1:. Tool and storage sheds, playhouses and similar structures exempted from permits by Section
R105.2 are not required to provide wall protection based on location on the lot. Projections
beyond the exterior wall shall not extend over the lot line.
2. Open metal carport structures may be constructed within zero (0) feet of the property line
without fire-resistive or openino protection when the location of such is approved as reauired
bv other adopted ordinances.
**Section R303.3, exception; change to read as follows:
Exception: The glazed areas shall not be required where artificial light and a mechanical ventilation
system. complvino with one of the followino. are provided.
L The minimum ventilation rates shall be 50 cfm (23.6 Us) for intermittent ventilation or 20 cfm
(9.4 Us) for continuous ventilation. Ventilation air from the space shall be exhausted directly
to the outside.
2. Bathrooms that contain onlv a water closet. lavatory or combination thereof may be ventilated
with an approved mechanical recirculatino fan or similar device desioned to remove odors
from the air.
**Section R303.8; change to read as follows:
R303.8 Required heating. '.^lhen the '.\linter design tomperature in Taele RJ01.2(1) is bolo'"" e09F:
~9C), every Everv dwelling unit shall be provided with heating facilities capable of maintaining a
minimum room temperature of 680F (20oC) at a point 3 feet (914 mm) above the floor and 2 feet (610 mm)
from exterior walls in all habitable rooms at the design temperature. {Remainder of section unchanged}
**Section R311.2.2; change to read as follows:
R311.2.2 Under stair protection. Enclosed accessible space under stairs shall have walls, under stair
surface and any soffits protected on the enclosed side with 5/8-inch (15.8 mm) fire-rated 1/2 inch (12.7
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 5
mmt gypsum board or one-hour fire-resistive construction.
**Section R317.1; add a second exception to read as follows:
Exception!:
1:. {existing exception unchanged}
2. Two-family dwellina units that are also divided bY a property line throuah the structure shall be
separated as reauired for townhouses.
***Section R318; delete.
**Sections R319 and R320; change to read as follows:
Revise Section R319.1 to read as follows:
R319.1 Location required. In areas subject to decay damage as established by Figure
RJQQ1.2(7), Protection from decay shall be provided in the following locations shall require Qy the
use of naturally durable wood or an appreV9G species anG 8raGe of lumBer, wood that is pressure
preservatively treated in accordance with AWPA C1, C2, C3, C4, C9, C15, C18, C22, C23, C24,
C28, C31, C33, P1, P2, and P3, or Gecay resistant hearlv.<ood of redw9ge, black leGl::Ist, or cedars
1. No revision.
2. No revision.
3. No revision.
4. No revision.
5. No revision.
6. No revision.
7. No revision.
R319.1.1 Field treatment. Field cut ends. notches and drilled holes of pressure preservatively
treated wood shall be retreated in the field in accordance with AWPA M4.
Renumber existing sections R319.1.1 (Ground contact) through R319.1.4 (Wood columns).
Delete Section R320.1 and substitute the following:
R320.1 Subterranean termite control. In areas favorable to termite damage as established by
Table R 301.2 (1), methods of protection shall be by one of the followina: Chemical soil treatment,
pressl::lre preservatively treated wood in accordance with the I'.WP^ staneares listed in SeGtion
RJ1Q.1, naturally termite resistant '.'Ieee er physical barriers (such as metal er plastiG termite
shields), or any combination of these methods.
R 320.1.1 Pressure preservatively treated or naturally durable wood shall be provided as
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 6
per HUD standards. Pressure perservatively treated wood shall be treated in accordance
with the standards cited in R 319.1 .
R 320.1.1.1 R320.1.1 Quality Mark. Lumber and plywood required to be pressure
preservatively treated in accordance with R324.1 shall bear the quality mark of an
approved inspection agency which maintains continuing supervision, testing, and
inspection over the quality of the product and which has been approved by an
accreditation body which complies with the requirements of the American Lumber
Standards Committee treated wood program.
R320.1.1.2 Field treatment. Field cut ends. notches and drilled holes of pressure
preservatively treated wood shall be retreated in the field in accordance with AWPA M4.
Revise sections R320.2 through R320A as follows:
R320.2 R320.1.2 CRemiGal soil Pesticide treatment. The concentrations, rate of
application and treatment methods of the termiticide shall be consistent with and never
less than the termiticide label. Pesticide treatment shall be provided usina methods
approved by the Environmental Protection Aaency and the Texas Structural Pest Control
Board.
R320.1.3 Physical Barriers. Phvsical barriers shall be installed as recoanized bv
Texas Structural Pest Control Board,
R320.3 Pressure preservatively treated \':ood and naturally resistant 'I.*ood. Heartwood of
redwood ane eastern red cedar shall be censidered termite resistant. Pressl::lre I'lreservatively
treates .....ood and naturally termite resistant wood shall not be used as a physical barrier l::lnless a
barrier Gan be inspected for any termite shelter tubes around the inside and outside edges and
joints of a barrier.
R320.3.1 Field treatment. Field cut enes, notches and drilled holes of pressl::lre
preservati'lely treated 'Nood shall be retreateG in the fielEl in aGGmGanGe with A'NP^ M4.
R320.4 R320.2 Foam plastic protection. {Remainder of section unchanged.}
**Section R323. 1; change to read as follows:
R323.1 General. Buildings and structures. when permitted to be constructed in flood hazard areas. . .
{bulk of section unchanged} . . . shall be designed and constructed as required in accordance with the
provisions contained in this section or by other local provisions as applicable.
***Section R602.10.5; add the following exception and figure:
Exception: Vertical wall segments in the first of one- or first of two-story buildings next to garage
openings shall be permitted to have a 6: 1 height-to-width ratio (with height being measured from top of
header to sill plate) when constructed in accordance with the following provisions. Each panel shall have
a length of not less than 16 inches (406 mm) and a height of not more than 10 feet (3048 mm). Each
panel shall be sheathed on one face with a single layer of 3/8-inch-minimum-thickness (9.5 mm) wood
structural panel sheathing nailed with 8d common or galvanized box nails in accordance with Figure
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance Page 7
4JO016-v2
R602.10.5(2). The wood structural panel sheathing shall extend up over the solid sawn or glued-
laminated header and shall be nailed in accordance with Figure R602.10.5(2). The header shall extend
between the inside faces of the first full-length outer studs of each panel. The clear span of the header
between the inner studs of each panel shall be not less than six feet (1829 mm) and not more than 18
feet (5486 mm) in length. A strap with an uplift capacity of not less than 1000 pounds (454 kg) shall
fasten the header to the side of the inner studs opposite the sheathing. Two anchor bolts shall be
installed in accordance with Section R403.1.6, and plate washers shall be a minimum of 2 inches by 2
inches by 3/16 inch (51 mm by 51 mm by 4.88 mm) thick and shall be used on each bolt. This exception
is only permitted in Seismic Design Categories A-C.
Figure R602.10.5(2)
GARAGE DOOR BRACED WALL PANEL FOR USE WITH CONTINUOUSLY SHEATHED WALLS
I
MAX.
HEIGHT
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FASTEN TOP PLATE TO HEADER WITH lWO
ROWS OF 16D SINKER NAlLSAT3" O.C. TYP.
10c0 LB STRAP OPPOSITE SHEATHING
FASTEN SHEATHING TO HEADER WITH 8D
COMMJN OR GALVANiz:ED BOX NAILS IN 3' GRID
PATTERN AS SHOWN AND 3" O.C. IN ALL
FRAMING (SlUDS, BLDCI<ING. AND SIUS) lYP.
WIDTH BASED ON 6:1 HEIGHT. TO.WIDTH RATIO:
FOR 120' HEIGHT, MIN. WIDTH = 20', FOR 9f:J'
HEIGHT, MIN. WIDTH = 1f:J', ETC.
MN. 2><4
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PER FIG U RE R602.10.5
FOR APANELSPUCE(IF NEEDED), PANEL
EDGES SHALLBE BLOCKED, AND OCCUR
WITHIN 24" OF MD. HEIGHT. ONE ROW OF
TYP. SHEATHING-lD.FRAMING NAlUNG IS
REQUIRED.
IF 2Xt4 BLDCI<ING IS USED. THE 2Xt4'S
MUST BE NAILED TOGETHER WITH 316D
SINKERS
MI N. (2) 2><4
SEE SECTION R<103.1.6
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**Section R703. 7.4.1; add a second paragraph to read as follows:
2. The maximum heioht of masonry veneer supported by wood or cold-formed steel shall not
exceed (twentv-five) 25 feet. A licensed professional enoineer's desion with a detail is required on all
brick on wood/steel installations exceedino (five) 5 square feet. to verify the requirements of this section.
**Section R703. 7.4. 1; add a second paragraph to read as follows:
For 3'!1.i square feet (0.302 m2) of wall area. the followino dimensions shall be adhered to:
1. When ties are placed on studs 16 in (407 mm) o.c., they shall be spaced no further apart than 29 in
(737 mm) verticallv startino approximately 15 in (381 mm) from the foundation.
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 8
2. When ties are placed on studs 24 in (610 mm) o.c.. they shall be spaced no further apart than 19 in
(483 mm) vertically startinQ approximately 10 in (254 mm) from the foundation.
**Add Section R902.3 to read as follows:
R902.3 Minimum Roof Class. All roof coverinQs shall be a minimum Class C. All individual replacement
shinQles or shakes shall be a minimum Class C.
Exception: Non-classified roof coverinQs shall be permitted on buildinQs of U occupancies
havinQ not more than 120 SQ.ft. of proiected roof area. When exceedinQ 120 SQ.ft. of proiected
roof area, buildinQs of U occupancies may use non-rated non-combustible coverinQs.
-Subsection R905.1, Roof covering applications; is amended by the addition of the following
paragraphs:
Roof systems in place prior to January 18, 1988. may be repaired with roof coverinas of the same type
as the oriQinal roof when all the followinQ conditions are met:
1. The repair does not exceed twenty-five (25) percent of the roof.
2. The repair does not result in an increase in the total surface area of the roof.
3. Repairs shall not exceed (twenty-five) (25) percent of the roof surface area within any twelve month
period unless Class C or better roof coverina is provided.
ShinQles and shakes shall be applied to roofs with solid sheathina. ExistinQ roofs may be replaced over
spaced sheathinQ. When spaced sheathinQ is used. sheathinQ boards shall not be less than 1-inch by 4-
inches (25 mm by 102 mm) nominal dimensions and shall be spaced on centers equal to the weather
exposure to coincide with the placement of fasteners. When 1-inch by 4-inch (25 mm by 102 mm)
spaced sheathinQ is installed at 10 inches (254 mm) on center, additional1-inch by 4-inch (25 mm by 102
mm) boards must be installed between the sheathinQ boards.
**Subsection R905. 7. 1 Deck Requirements; is changed to read as follows:
Wood shingles shall only be installed on solid sheathing except as allowed for existing roofs in subsection
R905.1.
**Subsection R905.8.1 Deck Requirements; is changed to read as follows:
Wood shakes shall only be installed on solid sheathing except as allowed for existing roofs in subsection
R905.1.
-Section R907. 1; add a sentence to read as follows:
All individual replacement shinQles or shakes shall comply with Section R902.3.
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 9
**Subsection R1005.2, Exterior air intake; is changed to read as follows:
The exterior air intake shall be capable of providina all combustion air from the exterior of the dwellina or
from spaces within the dwellina ventilated with outside air such as attic spaces. The exterior air intake
shall not be located within the aaraae or basement of the dwellina nor shall the air intake be located at an
elevation hiaher than the firebox. The exterior air intake shall be covered with a corrosion-resistant
screen of y.. -inch (6.4 mm) mesh.
**Section N1101.2; amend as follows:
N1101.2.1 Compliance. Compliance with this chapter shall be demonstrated by meeting tRe
requirements of the applicable sections ami tal::lles of this chapter either one of the followina:
1. Meetina the reauirements of this chapter for buildinas with a alazina area that does not exceed 15
percent of the aross area of exterior walls; or
2. Meetina the reauirements of this chapter for buildinas with a alazina area that is areater than 15
percent but not exceedina 20 percent of the aross area of exterior walls and air conditionina
eauipment rated 12 SEER or hiaher;
3. Meetina the reauirements of this chapter for buildinas with a alazina area that is areater than 20
percent but not exceedina 25 percent of the aross area of exterior walls and air conditionina
equipment rated 14 SEER or hiaher; or
4. MeetinQ the requirements of the International Enerav Conservation Code for residential buildinas.
detached one- and two-family dwellinas.
{Remainder of section unchanged}
**Add Section N1101.3.4 to read as follows:
N1101.3.4 Exterior basement or slab insulation. When susceptibility to termite damaae is classified as
"very heaVY" accordina to Table R301.2(1). desians employina basement or slab exterior insulation
capable of harborina termites shall not be utilized.
**Section N1102.1; amend as follows:
N1102.1 Thermal performance criteria. The minimum required insulation R-value or the area-weighted
average maximum required fenestration U-factor (other than opaque doors which are governed by
Section N1102.1.3) for each element in the building thermal envelope (fenestration, roof/ceiling, opaque
wall, floor, slab edge, crawl space wall and basement wall) shall be in accordance with the criteria in
Table N1102.1.
Detached one-and-two family dwellings with greater than 4-a-25-percent glazing area; townhouses with
greater than 25-percent glazing area; ana any resieential building in climates '.\lith heating aegree says
eql::Jal to or greater than 13,000; shall determine compliance using the building envelope requirements of
Chapters 4 or 5 of the International Energy Conservation Code.
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 10
**Replace Table N1102.1 with:
TABLE N1102.1
SIMPLIFIED PRESCRIPTIVE
COMPONENT CRITERIA
BUILDING
ENVELOPE
THERMAL
MINIMUM REQUIRED THERMAL PERFORMANCE (U-FACTOR AND R-VALUE)
MINIMUM INSULATION R-VALUE Hhr.ft"':F /Btul
MAXIMUM Ceilings Ceiling
GLAZING open to Joist/Roof Walls Floors Basement Slab Crawl
U-FACTOR Attic Rafter Walls perimeter space
[Btu/(hr.ft2. OF)] Space Assembly walls
0.65 R-38 R-22 R-13 R-19 R-O R-O R_7a
a. Crawl space insulation is only required for structures with un insulated floors.
Use of this table is limited to projects where the cathedral ceiling area is limited to one third or less of the
total ceiling area.
***Section N1102.1.6; delete last sentence of exception.
**Section N1102.2; amend as follows:
N1102.2 Maximum solar heat gain coefficient for fenestration products. The area-weighted-average
solar heat gain coefficient (SHGC) for glazed fenestration installed in locations with 3,500 or fewer
heating degree days shall not exceed 0.40.
Exceptions:
1. Any olazino facino within 45 deorees of true north:
2. Any glazino facino within 45 deorees of true south which is shaded alono its full width by a
permanent overhano with a proiection factor of 0.3 or oreater.
3. Any fenestration with permanently attached screens where the screens have a rated shadino
coefficient of .6 or less.
***Table N1103.5; amend as follows:
Cooling Systems FLUID TEMP RANGE rF) INSULATION THICKNESS
inchesb
Chilled water, refrigerant or brine 40-55 ~.5
Below 40 1.25
{Remainder of table unchanged.}
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
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Page 11
Amend footnote "b" to read as follows:
b. For piping lenoths in excess of five (5) feet (1.524 mm) exposed to outdoor air, increase
thickness by 0.5 inch (13 mm).
**Section M1305.1.3; change to read as follows:
M1305.1.3 Appliances in attics. Attics containing appliances requiring access shall be provided. . .
{bulk of paragraph unchanged} . . . from the opening to the appliance. The passageway shall have
continuous unobstructed solid flooring in accordance with Chapter 5 not less than ;M.- 30 inches (94Q 762
mm) wide. A level service space at least 30 inches (762 mm) deep and 30 inches (762 mm) wide shall be
present along all sides of the appliance where access is required. The clear access opening dimensions
shall be a minimum of 20 inches by 30 inches (508 mm by 762 mm), or laroer where such dimensions are
not large enough to allow removal of the largest appliance. As a minimum. access to the attic space shall
be provided by one of the followino:
1. A permanent stair.
2. A pull down stair.
3. An access door from an upper floor level.
Exception: The passageway and level service space are not required where the appliance is
capable of being serviced and removed through the required opening.
**Section M1305. 1.3. 1; add a sentence to read as follows:
Low voltaoe wirino of 50 Volts or less shall be installed in a manner to prevent physical damaoe.
**Section M1305. 1.4. 1; change to read as follows:
M1305.1.4.1 Ground clearance. Appliances supported from the ground shall be level and firmly
supported on a concrete slab or other approved material extending above the adjoining ground E
minimum of 3 inches (76 mm). Appliances suspended from the floor shall have a clearance of not less
than 6 inches (152 mm) above the ground.
**Section M1305.1.4.3; add a sentence to read as follows:
Low voltaoe wirino of 50 Volts or less shall be installed in a manner to prevent physical damaoe.
**Section M1307.3.1; delete.
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 12
**Section M1501.2; delete and replace with the following:
M1501.2 Exhaust duct size. The minimum diameter of the exhaust duct shall be as recommended by
the manufacturer. shall be at least the diameter of the appliance outlet and shall be a minimum nominal
size of 4 inches (102 mm) in diameter. The size of duct shall not be reduced alonQ its developed lenoth
nor at the point of termination.
**Section M1501.3; change to read as follows:
M1501.3 Length limitation. The maximum length of a clothes dryer exhaust duct shall not exceed 25
feet (7620 mm) from the dryer location to the wall or roof termination with not more than two bends.
When extra bends are installed. the maximum length of the duct shall be reduced 2.5 feet (762 mm) for
each 45-degree (0.79 rad) bend and 5 feet (1524 mm) for each 90-degree (1.6 rad) bend that occur after
the first two bends. measurino in the direction of airflow. The maximum length of the exhaust duct does
not include the transition duct.
{Exception is unchanged}
**Section M2005.2; change to read as follows:
M2005.2 Prohibited locations. Fuel-fired water heaters shall not be installed in a room used as a
storage closet. Water heaters located in a bedroom or bathroom shall be installed in a sealed enclosure
so that combustion air will not be taken from the living space. Access to such enclosure may be from the
bedroom or bathroom when throuoh a solid door. weather-stripped in accordance with the exterior door
air leakaoe requirements of the International Enerav Conservation Code and equipped with an approved
self-closino device. Direct-vent water heaters are not required to be installed within an enclosure.
**Section G240B.3; delete.
**Section G2412.5; add a second paragraph to read as follows:
Both ends of each section of medium pressure oas pipino shall identify its operatino oas pressure with an
approved tao. The taos are to be composed of aluminum or stainless steel and the followino wordino
shall be stamped into the tao:
'WARNING
1/2 to 5 psi oas pressure
Do Not Remove"
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 13
**Section G2413.3; add an exception to read as follows:
Exception: Corruaated stainless steel tubina (CSST) shall be a minimum of 1/2".
**Section G2415.6; change to read as follows:
G2415.6 (404.6) Piping in solid floors. Piping in solid floors shall be laid in channels in the floor and
covered in a manner what will allow access to the piping with a minimum amount of damage to the
building. Where such piping is subject to exposure to excessive moisture or corrosive substances, the
piping shall be protected in an approved manner. As an alternative to installation in channels, the piping
shall be installed in accordance with Section G2415.11 (404.11) a casing of schoGbllo 49 steel, wrought
iran, PVC or /\BS pipe with tightly sealeG ends and joints. Both ends of such casing shall extena not less
than 2 inches (51 mm) beyonG the f'}oint where tho f'}ipe emerges from the floor.
**Section G2415.9; change to read as follows:
G2415.9 (404.9) Minimum burial depth. Underground piping systems shall be installed a minimum
depth of ~.1!! inches (JQa 458 mm) below grade, except as pro'/iaeG for in Section G2415.Q.1.
**Section G2415.9.1; delete.
**Section G2417.1; change to read as follows:
G2417.1 (406.1) General. Prior to acceptance and initial operation, all piping installations shall be
inspected and pressure tested to determine that the materials, design, fabrication, and installation
practices comply with the requirements of this code. The permit holder shall make the applicable tests
prescribed in Sections 2417.1.1 throuoh 2417.7.4 to determine compliance with the provisions of this
code. The permit holder shall oive reasonable advance notice to the code official when the pipino system
is ready for testino. The eauipment. material. power and labor necessary for the inspections and test
shall be furnished by the permit holder and the permit holder shall be responsible for determinino that the
work will withstand the test pressure prescribed in the followino tests.
**Section G2417.4. Amend by deleting the section in its entirety and adding
a new Section G2417.4 to read as follows:
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 14
Test pressure measurements. Test oressure shall be measured with a manometer or with a oressure
measurina device desioned and calibrated to read. record or indicate a pressure loss due to leakaae
durina the pressure test period. The source of oressure shall be isolated before the oressure tests are
made. The eauioment used shall be of an appropriate scale such that pressure loss can be easily
determined.
**Section G2417.4.1. Amend by deleting the section in its entirety and adding a new Section
G2417.4.1 to read as follows:
Test pressure. The test pressure to be used shall be not less than one and one-half times the oroposed
maximum workino pressure. but not less than 10 psio (68.9 kPa aauoe) or at the discretion of the Code
Official. The oioina and valves may be tested at a pressure of at least 6 inches (152 mm) of mercury
measured with a manometer or slooe oauoe. For welded oipina and for pioino carryino oas at oressures
in excess of 14 inches water column pressure (3.48 kPa). the test pressure shall not be less than 60
pounds oer sauare inch (413.4 kPa).
**Section G2417.4.2; change to read as follows:
G2417.4.2 (406.4.2) Test duration. The test duration shall be held for a lenoth of time satisfactory to the
Code Official. but in no case for ge--Ret less than -W-fifteen (15) minutes. For welded pioina. and for
pipina carryinQ oas at oressures in excess of fourteen (14) inches water column pressure (3.48 kPa). the
test duration shall be held for a lenoth of time satisfactory to the Code Official. but in no case for less than
thirty (30) minutes.
-Add Section G2420.1.4 to read as follows:
G2420.1.4 Valves in CSST installations. Shutoff valves installed with corruoated stainless steel
(CSST) pipina systems shall be supported with an approved termination fittina. or eauivalent supoort.
suitable for the size of the valves. of adequate strenath and Quality. and located at intervals so as to
prevent or damp out excessive vibration but in no case oreater than 12-inches from the center of the
valve. Supports shall be installed so as not to interfere with the free exoansion and contraction of the
system's pipino. fittinQs. and valves between anchors. All valves and supports shall be desioned and
installed so they will not be disenoaoed by movement of the supportino oioina.
**Section G2421.1; add a second paragraph and exception to read as follows:
Access to reaulators shall comoly with the requirements for access to aopliances as soecified in Section
M1305.
Exception: A oassaoeway or level service space is not required when the reaulator is caoable of
beinQ serviced and removed throuah the required attic ooenina.
**Section G2439.5; add a sentence to read as follows:
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
41001 6-v2
Page 15
The size of duct shall not be reduced alona its develooed lenath nor at the ooint of termination.
-Section G2439.5.1; change to read as follows:
G2439.5.1 (614.6.1) Maximum length. The maximum length of a clothes dryer exhaust duct shall not
exceed 25 feet (7620 mm) from the dryer location to the outlet terminal with not more than two bends.
When extra bends are installed. the maximum length of the duct shall be reduced 2 1/2 feet (762 mm) for
each 45-degree (0.79 rad) bend and 5 feet (1524 mm) for each 90-degree (1.6 rad) bend that occur after
the first two bends. measurina in the direction of airflow.
{Exception is unchanged}
**Section G2445.2; change to read as follows:
G2445.2 (621.2) Prohibited use. One or more unvented room heaters shall not be used as the sole
source of comfort heating in a dwelling unit.
Exception: Existina aooroved unvented heaters may continue to be used in dwellina units. in
accordance with the code orovisions in effect when installed. when aooroved by the Code Official
unless an unsafe condition is determined to exist as described in International Fuel Gas Code
Section 108.7.
**Section G2448.1.1; change to read as follows:
G2448.1.1 (624.1.1) Installation requirements. The requirements for water heaters relative to access.
sizing, relief valves, drain pans and scald protection shall be in accordance with this code.
-Section P2503.5.1, item 1; add a second paragraph to read as follows:
Shower receotors shall be tested for water tiahtness by fillina with water to the level of the rouah
threshold. The drain shall be oluaaed in a manner so that both sides of oans shall be subiected to the
test at the ooint where it is clam oed to the drain.
**Section P2503.7.2; change to read as follows:
P2503.7.2 Testing. Reduced pressure principle. . . {bulk of section unchanged} . . . at the time of
installation, immediately after repairs or relocation and at reQular intervals as reQuired by aoolicable state
or local orovisions least anmmlly.
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 16
***Section P2603.2. 1; change to read as follows:
P2603.2.1 Protection against physical damage. In concealed locations... {bulk of section
unchanged}.. . Protective shield plates shall be a minimum of .062-inch-thick (1.6 mm) steel, and shall
cover the area of the pipe where the member is notched or bored ane shall extend a minimum of 2 inches
(51 mm) abo':e sole plates and gelo\V top plates.
**Section P2603.6.1; delete and replace with the following:
P2603.6.1 Sewer depth. Buildina sewers shall be a minimum of 12 inches (304 mm) below orade.
-Section P2709. 1; add an exception to read as follows:
Exception: Showers desianed to comply with ICC/ANSI A 117.1.
**Section P2801.6; add an exception as follows:
Exception: Elevation of the ignition source is not required for water heaters that are listed as flammable
vapor resistant and for installation without elevation.
**Section P2803.6.1. Amend by deleting the section in its entirety and adding a new Section
P2803.6.1 to read as follows:
Reauirements for discharae. The outlet of a pressure relief valve. temperature relief valve or combination
thereof shall not be directly connected to the drainaae system. The discharae from the relief valve shall
be piped full size separately to the outside of the buildina or to an indirect waste receptor located inside
the buildina. In areas subiect to freezino. the relief valve shall discharae throuah an air aap into an
indirect waste receptor located within a heated space or by other approved means. The discharae pipe
shall not discharoe into the pan required in Section P2801.5.
The discharae shall be installed in a manner that does not cause personal iniury or property damaae and
that is readilv observable bv the buildino occupants. The discharae from a relief valve shall be trapped.
The diameter of the discharae pipino shall not be less than the diameter of the relief valve outlet. The
discharae pipe shall be installed so as to drain by aravity flow and shall terminate atmospherically. When
discharaino outside the buildina. the point of discharae shall be with the end of the pipe not more than 2
feet (610 mm) nor less than 6 inches (152 mm) above the around or the floor level of the area receivinQ
the discharae and pointina downward. The end of the discharae pipe shall not be threaded.
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 17
-Section P2902.4.3; changed to read as follows:
P2902.4.3 Lawn Irrigation Systems. The potable water supply system to lawn irrigation systems shall
be protected against backflow by an atmospheric-type vacuum breaker, a pressure type vacuum breaker...
a double-check assemblv or a reduced pressure principle backflow preventer . . . {remainder of section
unchanged} .
**Table P2904.4. 1 & P2904.5; delete -Polybutylene (PS) plastic pipe and tubing-.
**Sections P2904.5.1 and P2904.14; delete reference to -PS- plastic pipe.
**Section P3005.2.6; changed to read as follows:
P3005.2.6 Upper terminal 6ase 9f stacks. Each horizontal drain shall be provided with a clean out at its
upper terminal /\mlossiele Qleanouts shall !:>e pro':ided near the ease of eaQh \'ortiGal waste or soil stack.
/\lternati'Jely, such c1eanouts may be installee outsiEle the el::lilElin€l '....ithin 3 feet (914 mm) of the building
walh
Exception: Clean outs may be omitted on a horizontal drain less that five (5) feet (1524 mm) in
lenath unless such line is servina sinks or urinals.
**Section P3103. 1; change to read as follows:
P3103.1 Roof extension. All open vent pipes which extend through a roof shall be terminated at least
six (6) inches (152 mm) above the roof or [m:lmBer] inches above the antiQipatee snow accl::lmulation,
except that . . . {remainder of section unchanged}.
-Sections P3105.2; change to read as follows:
P3105.2 Fixture drains. The total fall in a fixture drain due to pipe slope shall not exceed one pipe
diameter, nor shall the vent pipe connection to a fixture drain, except for water closets, be below the weir
of the trap except as pro':idee in Section PJ1 Oa.J.
**Section 3105.3 and Figure P3105.3; delete.
*-Section P3111; delete.
-Section P3112.2; delete and replace with the following:
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
410016-v2
Page 18
P3112.2 Installation. Traps for island sinks and similar equipment shall be rouohed in above the floor
and may be vented by extendinq the vent as hioh as possible. but not less than the drainboard heioht and
then returnino it downward and connectino it to the horizontal sink drain immediately downstream from
the vertical fixture drain. The return vent shall be connected to the horizontal drain throuoh a wye-branch
fittino and shall, in addition. be provided with a foot vent taken off the vertical fixture vent by means of a
wye-branch immediately below the floor and extendino to the nearest partition and then throuoh the roof
to the open air or may be connected to other vents at a point not less than six (6) inches (152 mm) above
the flood level rim of the fixtures served. Drainaoe fittinos shall be used on all parts of the vent below the
floor level and a minimum slope of one-quarter (1/4) inch per foot (20.9 mm/m) back to the drain shall be
maintained. The return bend used under the drainboard shall be a one (1) piece fittino or an assemblv of
a forty-five (45) deoree (0.79 radius), a ninety (90) deoree (1.6 radius) and a forty-five (45) deqree (0.79
radius) elbow in the order named. Pipe sizino shall be as elsewhere required in this Code. The island
sink drain, upstream of the return vent. shall serve no other fixtures. An accessible cleanout shall be
installed in the vertical portion of the foot vent.
***Chapters 33 through 42; delete. Replace with the electrical code as adopted.
END
Ordinance No. 2005-64
Repealing Ordinance No. 2002-04; Adopting the 2003
Edition of the International Residential Code Ordinance
41 001 6-v2
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