Item 7GCity of Southlake, Texas
July 14, 2004
TO: Billy Campbell, City Manager
FROM: Rick Black, Director of Public Safety (Ext. 242 1)
SUBJECT: Ordinance No. 874, 2nd Reading, Adoption of the 2003 International Residential
Code.
Action Requested: City Council approval of Ordinance No. 874 adopting the International
Residential Code, 2003 Edition with local amendments.
Background
Information: The city currently operates under the 2000 editions of the International
Codes and under the 1999 edition of the National Electrical Code.
These codes are published on a three year cycle. The North Central
Texas Council of Governments Executive Board with the
recommendation of the Regional Code Coordinating Committee has
recommended adoption of these codes except the Property
Maintenance Code be adopted with regional amendments. The Property
Maintenance Code is included as an update for the Dangerous Building
Code.
Financial
Considerations: These updated codes will have nominal impact on the cost of
construction in the city.
Financial Impact: This will have no financial impact on the city budget..
Board Review: The Building Board of Appeals held three public hearings and
unanimously recommended adoption of these codes. Two additional
meetings were held to receive input from the area building contractors.
Legal Review: This ordinance has been reviewed by the city attorney and changes
have been made as recommended.
Alternatives: Adopt the ordinance as recommended or direct staff to restudy any
specific issues that may be of concern.
Supporting
Documents: Detailed memorandum to Garland Wilson dated June 21, 2004
Ordinance No. 874, 2003 International Residential Code
Billy Campbell
July 14, 2004
Page 2
Staff
Recommendation: Approve Ordinance No. 874 on second reading with an effective date
of September 30, 2004. This is intended to provide builders time to
factor changes into contracts being developed.
RB /gw
City of Southlake, Texas
MEMORANDUM
June 21, 2004
TO: Garland Wilson, Chief of Administrative Services
FROM: Paul Ward, Building Official, and;
Chuck Bloomberg, Plans Examiner
SUBJECT: 2003 International Codes
The ICC, International Code Council, is a nonprofit organization founded in 1994 to develop a single set of
comprehensive and coordinated national model construction codes for use throughout the country.
We as the City of Southlake have been involved and supportive throughout the code development process and
the creation of the International Codes. This support has been through the North Texas chapter of the
International Code Council and through the regional review process be the Regional Codes Coordinating
Committee of the NCTCOG (North Central Texas Council of Governments).
The I Codes were developed with the support of many organizations that have interest in the construction
industry although the final vote on all items is by code officials only. Work on the International Codes has been
a model of democracy, without territorial disparities getting in the way. The American Institute of Architects and
the National Association of Home Builders were both very active participants in the code development process.
The National Association of Home Builders has applauded the recent action by the International Code Council
(ICC) to add "affordability" to the Purpose Statement section of the International Residential Code (IRC), which
applies to one- and two - family homes.
The City of Southlake has had a track record of supporting the latest edition of the codes. The code has been
published every three years for a long time. Since the 1980's Southlake has adopted the new code within one
year of it becoming available.
Another important reason to be up to date with the latest codes is the ISO insurance rating. Their system will
subtract points if the city is not on the current codes. We always need to be able to show that we are current
with the latest codes.
The Building Codes are a set of universally accepted standards adopted as guidelines for construction of
buildings and related building operations. The term "building codes" is a generic phase that actually
encompasses several individual codes, each of which must be approved and adopted by the City Council
before they can be applied or enforced. These codes are periodically updated, primarily due to new products
entering the marketplace, and minor revisions may be made under the term "local amendments."
The International Residential Code (IRC)provides standards for construction of one- and two- family dwellings
and townhouses. It differs from the above codes in that one volume contains all the building, energy, plumbing,
mechanical and fuel gas standards necessary for residential construction. As required by the State of Texas,
Southlake currently operates under the 2000 IRC. The proposed ordinance will bring us up to date by adopting
the 2003 edition of the International Residential Code for one- and two- family dwellings (2003 IBC). This
ordinance was created from the framework of the previous ordinance, inserting the NCTCOG recommended
regional amendments and some local administrative provisions carried over from previous editions of the code.
We have also modified the language in the fire sprinkler requirement keeping the same basic 6000 sf standard
but tightening up the exceptions. These changes were recommended by Fire Chief Finn and presented at two
public meetings with homebuilders and in a public hearing before the Building Board of Appeals.
2003 International Residential Code
ORDINANCE NO. 874
AN ORDINANCE ADOPTING THE 2003 EDITION OF THE INTERNATIONAL RESIDENTIAL
CODE FOR ONE- AND TWO - FAMILY DWELLINGS, REGULATING THE ERECTION,
CONSTRUCTION, ENLARGEMENT, ALTERATION, REPAIR, MOVING, REMOVAL,
DEMOLITION, CONVERSION, OCCUPANCY, EQUIPMENT, USE, HEIGHT, AREA AND
MAINTENANCE OF ALL ONE- AND TWO - FAMILY DWELLINGS AND MULTIPLE SINGLE -
FAMILY DWELLINGS (TOWNHOUSES) IN THE CITY OF SOUTHLAKE AND PROVIDING FOR
THE ADOPTION OF LOCAL AMENDMENTS THERETO; PROVIDING FOR _RECORDING OF
SUCH CODE AS A PUBLIC RECORD PROVIDING THAT THIS ORDINANCE SHALL BE
CUMULATIVE OF ALL ORDINANCES; PROVIDING A SEVERABILITY CLAUSE; PROVIDING
FOR A PENALTY FOR VIOLATIONS HEREOF; PROVIDING A SAVINGS CLAUSE; PROVIDING
FOR PUBLICATION IN PAMPHLET FORM; PROVIDING FOR PUBLICATION IN THE OFFICIAL
NEWSPAPER; AND PROVIDING AN EFFECTIVE DATE.
WHEREAS, the City of Southlake is a home rule city acting under its charter adopted by the
electorate pursuant to Article XI, Section 5 of the Texas Constitution and Chapter 9 of the Local Government
Code; and
WHEREAS, the City Council of the City of Southlake deems it necessary to adopt this ordinance
providing minimum standards to safeguard the health, property, and welfare of the citizens of Southlake by
regulating and controlling the use, occupancy, maintenance, repair, design, construction and quality of
materials for residential buildings and structures within the City.
WHEREAS, beginning in the summer of 2003, NCTCOG's Regional Codes Coordinating Committee
(RCCC) and its four advisory boards conducted 26 open review meetings over a 10 -month period to review the
2003 editions of the International Codes and to develop regional amendments. Their review and
recommendations were completed and endorsed by NCTCOG's Executive Board in March 2004. Now
NCTCOG encourages jurisdictions in North Central Texas to adopt the 2003 International Residential Code
for One- and Two - Family Dwellings along with its respective regional amendments with an effective date of
July 1, 2004:
NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF
SOUTHLAKE,TEXAS:
SECTION 1
That the International Residential Code for One- and Two - Family Dwellings, 2003 Edition, published
by the International Code Council, including the standards referenced therein, including Appendix Chapters A,
B, C, E, G, H and J are hereby adopted as the Residential Building Code of the City of Southlake regulating
the erection, construction, enlargement, alteration, repair, moving, removal, demolition, conversion,
occupancy, equipment, use, height, area and maintenance of all one- and two - family dwellings, multiple
single - family dwellings (townhouses) and their accessory structures in the City of Southlake. True and correct
copies of these documents are attached as Exhibit "A."
SECTION 2
That the 2003 International Residential Code, as adopted herein, is hereby amended as provided Exhibit "B"
incorporated herein and attached hereto for all purposes of this ordinance. The City of Southlake, Texas may
from time to time determine that additional local modifications to the Building Code are necessary and
appropriate to meet the unique needs of the City of Southlake, Texas. To effectuate these local modifications,
the City Council shall enact individual ordinances amending this Ordinance, fully setting forth the change to be
made in the Residential Building Code. Upon adoption, copies of these amendments shall be attached to
Exhibit "B" to this Ordinance.
SECTION 3
The material contained in Exhibit "A" to this ordinance shall not be included in the municipal
codification of ordinances, but shall be maintained as a public record in the office of the City Secretary and
will be available for public inspection and copying during regular business hours
SECTION 4
This ordinance shall be cumulative of all provisions of ordinances of the City of Southlake, Texas, except
where the provisions of this ordinance are in direct conflict with the provisions of such ordinances, in which
event the conflicting provisions of such ordinances are hereby repealed.
SECTION 5
It is hereby declared to be the intention of the City Council that the phrases, clauses, sentences,
paragraphs, and sections of this ordinance are, severable, and if any phrase, clause sentence, paragraph or
section of this ordinance shall be declared unconstitutional by the valid judgment or decree of any court of
competent jurisdiction, such unconstitutionality shall not affect any of the remaining phrases, clauses,
sentences, paragraphs and sections of this ordinance, since the same would have been enacted by the City
Council without the incorporation in this ordinance of any such unconstitutional phrase, clause, sentence,
paragraph or section.
SECTION 6
Any person, firm or corporation who violates, disobeys, omits. neglects or refuses to comply with or
who resists the enforcement of any of the provisions of this ordinance shall be fined not more than Two
Thousand Dollars ($ 2,000.00) for all violations involving zoning, fire safety or public health and sanitation,
including dumping or refuse, and shall be fined not more than five hundred dollars ($500) for all other
violations of this ordinance each day that a violation is permitted to exist shall constitute a separate offense.
SECTION 7
All rights and remedies of the City of Southlake are expressly saved as to any and all violations of the
provisions of any ordinances affecting the regulation and control of the use, occupancy, maintenance, repair,
design, construction and quality of materials for buildings and structures within the City which have accrued at
the time of the effective date of this ordinance; and, as to such accrued violations and all pending litigation,
both civil and criminal, whether pending in court or not, under such ordinances, same shall not be affected by
this ordinance but may be prosecuted until final disposition by the courts.
SECTION 8
The City Secretary of the City of Southlake is hereby authorized to publish this ordinance in book or
pamphlet form for general distribution among the public, and the operative provisions of this ordinance as so
published shall be admissible in evidence in all courts without further proof than the production thereof.
SECTION 9
The City Secretan- of the City of Southlake is hereby directed to publish in the official newspaper of
the City of Southlake, the caption, penalty clause, publication clause and effective date of this ordinance one
time within ten days after passage of this ordinance, as required by Section 3.13 of the Charter of the City of
Southlake.
SECTION 10
This ordinance shall be in full force and effect from and after its passage and publication as required
by law, but not sooner than September 30 2004.
PASSED AND APPROVED ON FIRST READING THIS DAY OF .2004.
MAYOR
ATTEST: CITY SECRETARY
PASSED AND APPROVED ON SECOND READING THIS _ DAY OF , 2004.
YOR
ATTEST: CITY SECRETARY
APPROVED AS TO FORM AND LEGALITY:
Cite Attorney
Date
EFFECTIVE:
EXHIBIT B
Amendments to the
2003 International Residential Code
The following sections, paragraphs, and sentences of the 2003 International Residential Code for One- and
Two - family Dwellings are hereby amended as follows:
(Standard type is text from the IRC. Underlined type is text inserted. L ine d th Fough type is deleted te)d from
fl;�G4 After each amendment a reason is given in parentheses. The reason is not a part of the code, but is
given to aid in understanding of the code.
Section R101.1; Insert city name as follows:
R101.1 Title. These regulations shall be known as the Building Code of The City of Southlake, Texas
hereinafter referred to as "this 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.)....
(Reason: Legal wording to recognize locally adopted codes and amendments adopted with
referenced codes by separate ordinances.)
Section R105.1, Add the following sentence:
105.1 Required. Any owner or authorized agent who intends to construct, enlarge, alter, repair, move,
demolish, or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove,
convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by
this code, or to cause any such work to be done, shall first make application to the building official and obtain
the required permit. For excavation or grading permits see IBC appendix chapter J as adopted.
(Reason: to make it clear that grading is regulated under the IBC even if on a residential lot.)
Section R105.2, Under electrical; change as follows:
Electrical . An electrical permit shall not be required for the following:
1. Portable motors or other portable appliances energized by means of a cord or cable having an attachment
plug end to be connected to an approved receptacle when that cord or cable is permitted by the Electrical
Code.
2. Repair or replacement of fixed motors, transformers or fixed approved appliances of the same type and
rating in the same location.
3. Temporary decorative lighting.
4. Repair or replacement of current - carrying parts of any switch, contactor or control device.
5. Reinstallation of attachment plug receptacles, but not the outlets therefor.
6. Repair or replacement of any overcurrent device of the required capacity in the same location.
7. Taping joints.
8. Removal of electrical wiring.
9. Electrical wiring, devices, appliances, apparatus or equipment operating at less than 25 volts and not
capable of supplying more than 50 watts of energy.
10. Low - energy power, control and signal circuits of Class II and Class III as defined in the Electrical Code.
(Reason: Language from former UAC is more specific.)
Section R105.3.1.1 revise as follows:
§RR105.3.1.1 Substantially improved or substantially damaged existing buildings in areas prone to
flooding. For applications for reconstruction, rehabilitation, addition, or the improvement of existing buildings
or structures located in an area prone to flooding as established by Ordinance 641 the building official shall
examine or cause to be examined the construction documents and shall prepare a finding with regard to the
value of the proposed work. Construction in such areas shall only be permitted as authorized by such
ordinnnrP
(Delete balance of paragraph)
(Reason: to recognize local flood hazard ordinance)
Section 108.6; add.
108.6 Re- inspection Fee. A fee as established by city council resolution may be charged when:
1.The inspection called for is not ready when the inspector arrives;
2.The temporary electrical pole does not have a building permit clearly posted;
3. No building address or permit card is clearly posted;
4. City approved plans are not on the job site available to the inspector;
5.The building is locked or work otherwise not available for inspection when called;
6.The job site is red - tagged twice for the same item;
7.The original red tag has been removed from the job site and /or,
8.Violations exist on the property including failure to maintain erosion control, trash
control or tree protection.
Any re- inspection fees assessed shall be paid before any more inspections are made on
that job site.
(Reason: This fee is not a fine or penalty but is designed to compensate for wasted time and trips
when inspections are called for when not ready.)
Section 108.7; add.
108.7 Investigation Fee. Work without a permit.
108.7.1 Investigation. Whenever work for which a permit is required by this code has been
commenced without first obtaining a permit, a special investigation shall be made before a
permit may be issued for such work.
108.7.2 Fee. An investigation fee, in addition to the permit fee, shall be collected whether or
not a permit is subsequently issued. The investigation fee shall be equal to the amount of
the permit fee required by this code or the city fee schedule as applicable. The payment of
such investigation fee shall not exempt the applicant from compliance with all other
provisions of either this code or the technical codes nor from penalty prescribed by law.
(Reason: This fee is not a fine or penalty but is designed to compensate for wasted time and to
remove incentive to attempt to evade permits and code compliance. Language taken from former
Uniform Administrative Code.)
Section R109.1.3; change to read as follows:
R109.1.3 Floodplain inspections. For construction permitted in areas prone to flooding as established by
Ordinance 641 upon ... {bulk of section unchanged) ... construction, the building official may shall require
submission ... (remainder of section unchanged).
(Reason: Confirmation of elevation is left to local codes.)
Section R110 (R110.1 through R110.4); delete.
(Reason: Issuing CO's for residences is not a common practice in the area.)
Section 112; delete entirely and substitute the following:
SECTION 112 BOARD OF APPEALS
112.1 General. In order to hear and decide appeals of orders, decisions or determinations made by the
building official relative to the application and interpretation of this code, there shall be and is hereby created a
board of appeals. The Building Board of Appeals as established by ordinance 622, as amended, shall
constitute the Board of Appeals referenced in this code.
112.2 Limitations on authority. An application for appeal shall be based on a claim that the true intent of this
code or the rules legally adopted thereunder have been incorrectly interpreted, the provisions of this code do
not fully apply, or an equally good or better form of construction is proposed. The board shall have no authority
to waive requirements of this code.
(Reason: recognize appeal board previously established by ordinance.)
Section R112.2.1 and Section R112.2.2; delete.
(Reason: Floodplain provisions are addressed by local ordinance.)
Section R202; add definition of "Naturally durable wood" as follows:
NATURALLY DURABLE WOOD. The heartwood of the followina 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.
Decay 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
WIND SPEED"
SEISMIC DESIGN CATEGORY
5 Ib /ft
90 (3- sec - gust) /75 fastest mile
A
SUBJECT TO DAMAGE FROM
Weathering
Frost line depth
Termite
Secay
moderate
6"
very heavy
INDEk
WINTER DESIGN
ICE SHIELD UNDER-
FLOOD
AIR FREEZING
MEAN ANNUAL
TEMP
LAYMENT REQUIRED'
HAZARDS'
INDEk
TEMP
22 ° F
No
local code
69 ° F
64.9 ° F
For SI: 1 pound per square foot = 0.0479 kN /m.0 1 mile per hour = 1.609 km /h.
a. No revisions.
b. No revisions.
c. No revisions.
e d. No further revisions
f e. No further revisions.
g f. No further revisions.
14 g_ No further revisions
i h. No further revisions
} i_ No further revisions.
k j_ No further revisions.
(Reason: To promote regional uniformity. The portion of the table dealing with decay is deleted
because the decay protection provisions in R319 and R320 are uniformly applicable.)
Figure R301.2(7); delete and renumber figures as needed.
(Reason: Corresponds with the amendment to Table R301.2(1).)
Section R302.1; add a second exception as follows:
Exceptions:
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 opening protection when the location of such is approved as required by other
adopted ordinances.
(Reason: Refers to other ordinances, such as zoning 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 complying with one of the following, are provided.
1. 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 only a water closet, lavatory or combination thereof may be ventilated with
an approved mechanical recirculating fan or similar device designed to remove odors from the air.
(Reason: Consistent with common local practice.)
Section R303.8; change to read as follows:
R303.8 Required heating. When the winteF design t empe r a t ure On Table 8301 2(i) is below 6O G)
( �
every E very dwelling unit shall be provided with heating facilities capable of maintaining a minimum room
temperature of 68 ° F (20 ° C) 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.
Section 313; change title as follows:
SECTION R313
FIRE PROTECTION SYSTEMS
(Smoke Alarms and Automatic Fire Extinguishing Systems)
Section313.3; Add sections313.3, 313.3.1 and 313.3.2 as follows:
R313.3 Automatic Fire Extinguishing Systems
R313.3.1 Standards. Fire arotection systems shall comaly with the aaaroariate International Buildina Code
standards and National Fire Protection Association standards. (See IBC section 903.3.1 through 903.3.1.3)
When sprinklers are installed in a dwelling having an attached garage, sidewall heads shall be installed on the
aaraae side of the common wall(s). The saacina of the heads shall be accordina to the coveraae width in the
listina of the heads
R313.3.2 Where reauired. An automatic fire - extinauishina system shall be installed in dwellinas included in
the Scope (see section 101.2) of this code when the dwelling contains over 6000 square feet area including
garages but excluding exterior open porches, covered patios and eaves. This area measurement shall be
based on outside dimensions of exterior walls. For upper level attic type rooms, areas where the ceiling height
is less than five feet (5' 0 ") shall not be considered. For the purpose of this subsection, area separation walls or
fire barriers shall not be considered as forming separate buildings. Unfinished space framed to permit future
expansion of living area shall be considered as part of the living area. Joists designed to support floor loads
shall be assumed to be future living area.
Exception: Garages separated from the dwelling area by two lavers of 5/8" type X gypsum on the
garage side only and a 60 minute rated door at any openings need not be considered. This
separation shall be by one of the following methods:
• Garage/ dwelling common wall is continuous vertically to roof deck. In this case ceiling
is not required to have fire protection.
• The entire garage is protected with the two lavers of 5/8" type X gypsum and only
listed fire rated openings are permitted in the ceiling membrane.
When an addition to a dwelling is constructed or non - conditioned space is converted to conditioned space so
that the addition plus the dwelling exceeds 6000 square feet the entire dwelling shall be sprinklered as
required for new construction. Where the existing garage has 1 /2" regular gypsum only one laver of 5/8" Type
X gypsum need be added to qualify for the exception above. See attached drawings for separation details.
A,--r I C- �. -Z AT r , - AP:- 11A I-
r7 ICI 17 � •
E }�_unam
1JFti}ti: 4,l.r.�£a AR6A jj' RA.AGE
r- its
1 4 C4 S a
(Reason: Consistent with present practice at 6000 sf limit, tightens exceptions that may be abused.)
Section R318; delete.
(Reason: Vapor barriers are not recommended in this region.)
Sections R319 and R320; change to read as follows:
Revise Section R319.1 and add R319.1.1 to read as follows:
R319.1 Location required. In areas SUbjeG+ +o decay darna ve as established by FigyFe 83001 7/T
Protection from decay shall be provided in the following locations shall requiFe by the use of naturally
durable wood or an approved sn °Gies and gFade 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 decay resistant heartwood of redweerl b'aGL IoGI ls+ or GedaFs
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 following: Gh °miGal soil +rea tmen+ nress„re
pFeservatively tFeated wood on aGGOrdaRGe with the A-WPA standards listed O R Sed R3194-,
or any
combination of these methods.
R 320.1.1 Pressure preservatively treated or naturally durable wood shall be provided as 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 °Z�.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 R320.4 as follows:
2 R320.1.2 Chern coil Pesticide treatment. The concentrations, rate of application
and treatment methods of the termiticide shall be consistent with and neve les +h°^ the
termiticide label. Pesticide treatment shall be provided using methods approved by the
Environmental Protection Agency and the Texas Structural Pest Control Board.
R320.1.3 Physical Barriers. Physical barriers shall be installed as
recognized by Texas Structural Pest Control Board.
4 R320.2 Foam plastic protection. {Remainder of section unchanged.)
(Reason: To make the IRC decay protection requirements consistent with the IBC and consistent
with similar provisions that were contained in the UBC. Reference is added in R320 for treating of
field cuts in compliance with AWPA M4. This is consistent with the requirements in R319. However,
in practice almost all preservatively treated wood in the local area is southern pine and Section 6 of
M4 says that field treatment of softwood species such as southern pine isn't necessary to provide a
good service life.
The revisions to R320 are intended to make the section read better and to provide guidance in
proper methods of termite protection.)
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
(Reason: Recognize other local provisions.)
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 laver 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 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 0829 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
EXTENT OF H
MIN. 7X 11.24' NET HEADER
MAY,
HEIGHT
10
em18
FASTEN TOP PLATE TO HEADER WITH TWO
ROWS OF 16D SINKER NAILS AT 3" 0. C. TYP.
1000 LB STRAP OPPOSITE SHEATHING
FASTEN SHEATHING TO HEADER WITH 8D
COMMON OR GALVANIZED BOX NAILS IN 7 GRID
PATTERN AS SHOWN AND 3" 0. C. IN ALL
F RAMIN 0 (S TU D S. BLOC 14 NO. AND SILLS) TYP.
WIDTH BASED ON 6:1 HEIGHT -TO -WIDTH RATIO:
FOR 120' HEIGHT. MIN. WIDTH = 20'. FOR 99'
HEIGHT. MIN. WIDTH= 16'. ETC.
30 MIN. THICKNESS WOOD
STRUCTURAL PANEL SHEATHING
MN. (2)2x4
MN. 2x4
FRAMING
TYP.
r l I , I
(Reason: To provide an alternate means of compliance.)
Section R703.7.4.1; add a second paragraph to read as follows:
I
I I
For 3'/4 sauare feet (0.302 m`) of wall area. the followina dimensions shall be adhered to:
1. When ties are Dlaced on studs 16" o.c.. thev shall be spaced no further apart than 29" verticallv startin
approximately 15" from the foundation.
2. When ties are Dlaced on studs 24" o.c.. thev shall be spaced no further apart than 19" verticallv startina
approximately 10" from the foundation.
(Reason: for clarity, specific dimensions are easier to understand, eliminates need for calculations by
masons.)
Add Section R902.3 to read as follows:
R902.3 Minimum Roof Class. All roof coverinas shall be a minimum Class C. All individual replacement
shingles or shakes shall be a minimum Class C.
Exception: Non - classified roof coverings shall be permitted on buildings of U occupancies having not
more than 120 sq.ft. of projected roof area. When exceeding 120 sq.ft. of projected roof area,
buildings of U occupancies may use non -rated non - combustible coverings.
(Reason: Consistent with local practice.)
Section R905.7.1; amend as follows:
R905.7.1 Deck requirements. Wood shingles shall be installed on solid OFSpaGed sheathing. WheFeSpaGed
sheathing is used, sheathing beaFds shall not be less than 1 iRGh by 4 iRGh (25.4 mm by 102 mm) nerninal
FOR A PANEL SPL IC E (IF NEEDED). PANEL
MIN. (2) 2x4
EDGES SHALL 8E BLOC kED. AND OCCUR
WITHIN 24" OF MD- HEIGHT. ONE ROW OF
TYPICAL CORNER DETAIL
TYP. SHEATHING TO- FRAMING NAILING IS
PER FIGURE R602.10.5
REQUIRED.
IF 2X4 BLOCWNG IS USED. THE 2>WS
MUST BE NAILED TOGETHER WITH 315D
SEE SECTION R403.1.6
SINLERS
r l I , I
(Reason: To provide an alternate means of compliance.)
Section R703.7.4.1; add a second paragraph to read as follows:
I
I I
For 3'/4 sauare feet (0.302 m`) of wall area. the followina dimensions shall be adhered to:
1. When ties are Dlaced on studs 16" o.c.. thev shall be spaced no further apart than 29" verticallv startin
approximately 15" from the foundation.
2. When ties are Dlaced on studs 24" o.c.. thev shall be spaced no further apart than 19" verticallv startina
approximately 10" from the foundation.
(Reason: for clarity, specific dimensions are easier to understand, eliminates need for calculations by
masons.)
Add Section R902.3 to read as follows:
R902.3 Minimum Roof Class. All roof coverinas shall be a minimum Class C. All individual replacement
shingles or shakes shall be a minimum Class C.
Exception: Non - classified roof coverings shall be permitted on buildings of U occupancies having not
more than 120 sq.ft. of projected roof area. When exceeding 120 sq.ft. of projected roof area,
buildings of U occupancies may use non -rated non - combustible coverings.
(Reason: Consistent with local practice.)
Section R905.7.1; amend as follows:
R905.7.1 Deck requirements. Wood shingles shall be installed on solid OFSpaGed sheathing. WheFeSpaGed
sheathing is used, sheathing beaFds shall not be less than 1 iRGh by 4 iRGh (25.4 mm by 102 mm) nerninal
dimensions and shall be spaGed GR GeRteFS equal to the weather exposure tO GG with the PlaGement Of
facts
905 Solid sheathing required
0 0 sel sheath i s requ
that nnrfinn of thern�r��ho�nGafinn �Ge cad. less
(Reason: Spaced sheathing burns more quickly when ignited. Spaced sheathing must be replaced if
homeowner needs to replace roof covering.)
Section R907.1; add a sentence to read as follows:
R907.1 General. Materials and methods of application used for recovering or replacing an existing roof
covering shall comply with the requirements of Chapter 9. All individual replacement shingles or shakes shall
comply with Section R902.3.
Exception: Reroofing shall not be required to meet the minimum design slope requirement of one -
quarter unit vertical in 12 units horizontal (2- percent slope) in Section 905 for roofs that provide positive
roof drainage.
(Reason: Consistent with local practice. Correlates with regional amendment to R902.3.)
Section N1101.2; amend as follows:
N1101.2.1 Detached one- and two- family dwellings.
Compliance shall be demonstrated by either:
1. Meeting the requirements of this chapter for buildings with a glazing area that does not exceed 15 percent of
the gross area of exterior walls; or
2. Meeting the requirements of the International Energy Conservation Code for detached one- and two - family
dwellings or
3. Meeting the requirements of this chapter for buildings with a glazing area that is greater than 15 percent
but not exceeding 20 percent of the gross area of exterior walls and air conditioning equipment rated 12 SEER
or higher; or
4. Meeting the requirements of this chapter for buildings with a glazing area that is greater than 20 percent
but not exceeding 25 percent of the gross area of exterior walls and air conditioning equipment rated 14 SEER
or higher.
(Reason: This amendment increases the number of builders who could use this "simplified
prescriptive" approach of the IRC. The trade -off with air - conditioning is an option under the IECC
systems analysis or REScheck approach, and is brought into this format for convenience only.
Other IECC trade -offs would also remain available. The intent is to maintain compatibility with the
IECC. The intent would include adjustment of this provision at such future date that the minimum
federal equipment standards are raised to achieve equivalent increases in energy savings.)
Add Section N1101.3.4 to read as follows:
N1101.3.4 Exterior basement or slab insulation. When susceptibility to termite damage is classified as
, 'very heavy" according to Table R301.20), designs employing basement or slab exterior insulation capable of
harboring termites shall not be utilized.
(Reason: Usage of exterior insulation provides access for termites. This amendment does not
preclude the use of insulating coatings that do not provide termite access or shelter.)
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 45 -25- percent glazing area; townhouses with greater
than 25- percent glazing area; and any Fesidentmal bUmIdoRg OA P-.i.M.AtAg; With heating degFee days equal to 0
greater than 13 shall determine compliance using the building envelope requirements of Chapters 4 or 5
of the International Energy Conservation Code.
(Reason: This amendment is compatible with the amendment to Section N1101.2.1, which increases the
allowable glazing area and effectively increases the number of builders who can use the "simplified
prescriptive" approach of the IRC.)
Replace Table N1102.1 with:
TABLE N1102.1
SIMPLIFIED PRESCRIPTIVE BUILDING ENVELOPE THERMAL COMPONENT CRITERIA
MINIMUM REQUIRED THERMAL PERFORMANCE (U- FACTOR AND R- VALUE)
a. Crawl space insulation is only required for structures with uninsulated 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.
(Reason: These numbers are from the tables in the code for the climate data of the Dallas/ Ft. Worth
area. 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.)
Section N1102.1.6; delete last sentence of exception.
(Reason: Slab edge insulation is not recommended in this region. Deleting the last sentence of the
exception allows the use of the simplified prescriptive method of compliance.)
Section N1102.2; add exceptions 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 glazing facing within 45 degrees of true north;
2. Anv alazina facina within 45 dearees of true south which is shaded alona its full width by a Dermanent
overhang with a projection factor of 0.3 or greater.
3. Anv fenestration with Dermanently attached screens where the screens have a rated shadina
coefficient of .6 or less
(Reason: This will allow north facing windows, which do not receive direct solar radiation, to be
exempt from the minimum SHGC requirement; provides a simple way for south facing windows to
effectively achieve summer shade and still receive some solar heat benefit in winter; and specifically
allows use of solar screens to achieve the shading effect.)
Table N1103.5; amend as follows:
Amend footnote "b" to read as follows:
b. For piping lengths in excess of five (5) feet (1,524 mm) exposed to outdoor air, increase thickness
by 0.5 inch 13 mm).
(Reason: No performance data is available. REM /Rate scoring procedures do not consider
refrigerant piping insulation. This amendment will provide a uniform approach and eliminate the
requirement of policies by the various jurisdictions.)
Add Section M1304.2 to read as follows:
MINIMUM INSULATION R -VALUE [(hr =ft = °F) /Btu]
Ceilings
Ceiling
MAXIMUM
open to
Joist /Roof
Walls
Floors
Basement
Slab
Crawl
GLAZING
Attic
Rafter
Walls
perimeter
space
U- FACTOR
Space
Assembly
walls
[Btu /(hr-ft
0.65
R -38
R -22
R -13
I R -19
R -0
R -0
R -7
a. Crawl space insulation is only required for structures with uninsulated 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.
(Reason: These numbers are from the tables in the code for the climate data of the Dallas/ Ft. Worth
area. 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.)
Section N1102.1.6; delete last sentence of exception.
(Reason: Slab edge insulation is not recommended in this region. Deleting the last sentence of the
exception allows the use of the simplified prescriptive method of compliance.)
Section N1102.2; add exceptions 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 glazing facing within 45 degrees of true north;
2. Anv alazina facina within 45 dearees of true south which is shaded alona its full width by a Dermanent
overhang with a projection factor of 0.3 or greater.
3. Anv fenestration with Dermanently attached screens where the screens have a rated shadina
coefficient of .6 or less
(Reason: This will allow north facing windows, which do not receive direct solar radiation, to be
exempt from the minimum SHGC requirement; provides a simple way for south facing windows to
effectively achieve summer shade and still receive some solar heat benefit in winter; and specifically
allows use of solar screens to achieve the shading effect.)
Table N1103.5; amend as follows:
Amend footnote "b" to read as follows:
b. For piping lengths in excess of five (5) feet (1,524 mm) exposed to outdoor air, increase thickness
by 0.5 inch 13 mm).
(Reason: No performance data is available. REM /Rate scoring procedures do not consider
refrigerant piping insulation. This amendment will provide a uniform approach and eliminate the
requirement of policies by the various jurisdictions.)
Add Section M1304.2 to read as follows:
M1304.2 Minimum burial depth. Underground fuel piping systems shall be installed a minimum depth of 18
inches (458 mm) below grade.
(Reason: Appropriate protection consistent with area practice.)
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 not less than 24- 30 inches (640 762 mm) wide. A level service space not less than
30 inches (762 mm) deep and 30 inches (762 mm) wide shall be present at the front or service side of the
equipment. The clear access opening dimensions shall be a minimum of 20 inches by 30 inches (508 mm by
762 mm), or larger 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 following:
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.
(Reason: To provide a safe means of accessibility to appliances in attics. Consistent with regional
amendments to IMC 306.3 and IFGC 306.3.)
Add Section M1305.1.5, M1305.1.5.1 to read as follows:
M1305.1.5 Water heaters above ground or floor. When the mezzanine or platform in which a water heater
is installed is more than eight (8) feet (2438 mm) above the ground or floor level, it shall be made accessible
by a stairway or permanent ladder fastened to the building.
M1305.1.5.1 Whenever the mezzanine or platform is not adequately lighted or access to a receptacle
outlet is not obtainable from the main level, lighting and a receptacle outlet shall be provided in
accordance with Section M1305.1.3.1.
Section M1305.1.3.1; add a sentence to read as follows:
Low voltage wiring of 50 Volts or less shall be installed in a manner to prevent physical damage.
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 grade a 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 voltage wiring of 50 Volts or less shall be installed in a manner to prevent physical damage.
Section M1307.3.1; delete.
Section M1501.2; change to read as follows:
M1501.2 Exhaust duct size. The minimum diameter of the exhaust duct shall be as recommended by the
manufacturer aPA shall be at least the diameter of the appliance outlet and shall be a minimum nominal size of
4 inches 0 02 mm) in diameter The size of duct shall not be reduced along its developed length 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. 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. The maximum length of the exhaust duct does not include the transition duct.
Exceptions: (see next page)
Exceptions:
1. Where a clothes dryer booster fan is installed and listed and labeled for the application,
the maximum length of the exhaust duct, including any transition duct, shall be permitted to
be in accordance with the booster fan manufacturer's installation instructions. Where a
clothes dryer booster fan is installed and not readily accessible from the room in which the
dryer is located, a permanent identifying label shall be placed adjacent to where the exhaust
duct enters the wall. The label shall bear the words "This dryer exhaust system is equipped
with a remotely located booster fan."
2. Where the make and model of the clothes dryer to be installed is known and the
manufacturer's installation instructions for such dryer are provided to the building official, the
maximum length of the exhaust duct, including any transition duct, shall be permitted to be
in accordance with the dryer manufacturer's installation instructions.
3. Where the first 9 feet of vent are 4" diameter pipe with not over two 90 bends and the pipe size is
then increased to 5" diameter, it may extend horizontally as far as 28.5 feet to the termination
niitcinnrs
(Engineered dryer vent equivalent considering velocity and pressure drop.)
Section M1601.3.4, item #1; change to read as follows:
1. Duct insulation shall conform to the requirements of Table M1601.3.4 and Section N1101.2. Should there
be any conflicts between this section and the energy efficiency provisions, the energy efficiency provisions
shall take precedence.
A vapor retarder in accordance with Table M1601.3.4 having a ma i aRGe of 0 peFrn [ 2 . 87
-WIS ` M 2, Pa)] i„- QeseFGIMee with ASTM E96 or aluminum foil having a minimum thickness of 2 mils
(0.051 mm), shall be installed on the exterior of insulation on cooling supply ducts that pass through
nonconditioned spaces conducive to condensation.
Insulations having a permeance of 0.05 perms [2.87 nq /(Pa s m or less shall not be required to be
covered.
(Reason: To indicate presiding code and reference to Table M1601.3.4. See next amendment.)
Add Table M1601.3.4 to read as follows:
Table M1601.3.4 - Insulation of Ducts
Note: Where ducts are used for both heating and cooling, the minimum insulation shall be as required for the
most restrictive condition.
1 Heating Degree Days:
Zone I below 4,500 D.D. Zone 11 4,501 to 8,000 D.D. Zone III over 8,000 D.D
Insulation Types
Insulation
Duct Location
Mechanically
Heating Zone'
Types
Cooled
Heating Only
I
A and W
On roof on exterior of building
C, V and W
II
B and W
III
C and W
I
A
Attics, garages and crawl spaces
A and V
II
A
III
B
I
A
In walls within floor - ceiling spaces
A and V
II
A
III
B
Within the conditioned space or in
None required
None required
basements; return ducts in air plenums
Cement slab or within ground
None required
None required
Note: Where ducts are used for both heating and cooling, the minimum insulation shall be as required for the
most restrictive condition.
1 Heating Degree Days:
Zone I below 4,500 D.D. Zone 11 4,501 to 8,000 D.D. Zone III over 8,000 D.D
2 Vapor retarders shall be installed on supply ducts in spaces vented to the outside in geographic areas where
the summer dew point temperature based on the 2'/2 percent column of dry-bulb and mean coincident wet -
bulb temperature exceeds 60 F. (15.4 C).
3 Insulation may be omitted on that portion of a duct which is located within a wall- or a floor - ceiling space
where:
3.1 Both sides of the space are exposed to conditioned air.
3.2 The space is not ventilated.
3.3 The space is not used as a return plenum.
3.4 The space is not exposed to unconditioned air.
Ceilings which form plenums need not be insulated.
4 INSULATION TYPES:
A -- A material with an installed conductance of 0.48 [2.72 W /(m *K)] or the equivalent thermal resistance of
2.1 [0.367 (m *K)/W].
Example of materials capable of meeting the above requirements:
1 -inch (25 mm), 0.60 Ib. /cu.ft. (9.6 kg /m) mineral fiber, rock, slag or glass blankets.
'/2 -inch (13 mm), 1.5 to 3 Ib. /cu.ft. (24 to 48 kg) (M3 mineral fiber blanket duct liner.
'/2 -inch (13 mm), 3 to 10 Ib. /cu.ft. (48 to 160 kg /m mineral fiber board.
B -- A material with an installed conductance of 0.24 [1.36 W /(m *K)] or the equivalent thermal resistance of
4.2 [0.735 (m *K)/W].
Example of materials capable of meeting the above requirements:
2 -inch (51 mm), 0.60 Ib. /cu.ft. (9.6 kg /m) mineral fiber blankets.
1 -inch (25 mm), 1.5 to 3 Ib. /cu.ft. (24 to 48 kg /m mineral fiber blanket duct liner.
1 -inch (25 mm), 3 to 10 Ib. /cu.ft. (48 to 160 kg /m mineral fiber board.
C -- A material with an installed conductance of 0.16 [0.9 W /(m *K)] or the equivalent thermal resistance of
6.3 [1.1 (m *K)/W].
Example of materials capable of meeting the above requirements:
3 -inch (76 mm), 0.60 Ib. /cu.ft. (9.6 kg /m) mineral fiber blankets.
1 '/2 -inch (38 mm), 1.5 to 3 Ib. /cu.ft. (24 to 48 kg /m) mineral fiber blanket duct liner.
1 '/2 -inch (38 mm), 3 to 10 Ib. /cu.ft. (48 to 160 kg /m mineral fiber board.
V - -Vapor Retarders: Material with a perm rating not exceeding 0.05 perm [29 ng /Pa *s *m All joints to be
sealed.
W - Approved weatherproof barrier.
4 The example of materials listed under each type is not meant to limit other available thickness and density
combinations with the equivalent installed conductance or resistance based on the insulation only.
(Reason: To reduce heating and/ or cooling energy duct losses. Designed for this climate zone.)
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 throuah a solid door. weather- striaaed in accordance with the exterior door air leakaae
requirements of the International Energy Conservation Code and equipped with an approved self - closing
device. Direct -vent water heaters are not required to be installed within an enclosure.
(Reason: Corresponds with the provisions of IFGC Section 303, exception #5.)
Section G2403; amend definition of "Unvented Room Heater" to add a sentence to read as follows:
For the purpose of installation, this definition shall also include "Unvented Decorative Appliances."
(Reason: Clarifies installation for these devices.)
Section G2412.5; add a second paragraph to read as follows:
G2412.5 (401.5) Identification. For other than black steel pipe, exposed piping shall be identified by a yellow
label marked "Gas" in black letters. The marking shall be spaced at intervals not exceeding 5 feet (1524 mm).
The marking shall not be required on pipe located in the same room as the equipment served.
Both ends of each section of medium pressure gas pipe or tubing shall identify its operating gas
pressure with an approved tag. The taps are to be composed of aluminum or stainless steel and the following
wording shall be stamped into the tag:
"WARNING
1/2 to 5 psi gas pressure
Do Not Remove"
(Reason: To protect homeowners and plumbers.)
Section G2413.3; add an exception to read as follows:
Exception: Corrugated stainless steel tubing (CSST) shall be a minimum of 1/2 ".
(Reason: Pipe less than 1/2" has a history in this region of causing whistling.)
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 Ga °inn of sohedyle 40 steel wFought iron PVC or ABS nine w its
tightly sealed ends and joints. Beth eRdS Of SUGh Gasing shall extend not less than 2 inGhes (51 mm) beyond
the point where the nine emerges from the floor
(Reason: Referencing Section G2415.11 provides CSST piping with outside venting.)
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
42 18 inches (39-5 458 mm) below grade e as provided for in Section G2415
(Reason: To provide increased protection to piping systems.)
Section G2415.9.1; delete.
(Reason: Individual lines should also be buried to 18 inches.)
Section G2417.4; add a sentence to read as follows:
G2417.4 (406.4) Test pressure measurement. Test pressure shall be measured with a manometer or with a
pressure measuring device designed and calibrated to read, record, or indicate a pressure loss caused by
leakage during the pressure test period. The source of pressure shall be isolated before the pressure tests are
made. Mechanical gauges used to measure test pressures shall have a range such that the highest end of the
scale is not greater than five times the test pressure. The equipment used shall be of an appropriate scale
such that pressure loss can be easily determined.
(Reason: To stress need for appropriate test equipment.)
Section G2417.4.1; change to read as follows:
G2417.4.1 (406.4.1) Test pressure. The test pressure to be used shall be no / and ess than one an one
tim half
ne maximum working maximu working pressyre but not less than 3 10 psig (20 68.9 kPa gauge), or at the
discretion of the Code Official, the piping and valves may be tested at a pressure of at least six (6) inches 052
mm) of mercurv. measured with a manometer or sloae aauae. irrespeGtiVe Of desOGn DFeSSYFe. Where the tes
stFess On the piping gFeater than 50 PeFGeRt Of the SpeGified minimum yield stFength of the For welded
piping, and for piping carrying gas at pressures in excess of fourteen (14) inches water column pressure (3.48
kPa), the test pressure shall not be less than sixty (60) pounds per square inch (413.4 kPa).
Section G2417.4.2; change to read as follows:
G2417.4.2 (406.4.2) Test duration. Test duration shall be held for a length of time satisfactory to the Code
Official, but in no case for net less than 4-9 fifteen 0 5) minutes. For welded piping, and for piping carrying gas
at pressures in excess of fourteen (14) inches water column pressure (3.48 kPa), the test duration shall be
held for a length of time satisfactory to the Code Official, but in no case for less than thirty (30) minutes.
(Reason: In this region, specific test methods were defined in amendments to the 1996 International
Mechanical Code. Amendments to Sections G2416.4.1 and G2416.4.2 retain those standards,
which are now standard practice)
Add Section G2420.1.4 to read as follows:
G2420.1.4 Valves in CSST installations. Shutoff valves installed with corrugated stainless steel (CSST)
Piping systems shall be supported with an approved termination fitting, or equivalent support, suitable for the
size of the valves, of adequate strength and quality, and located at intervals so as to prevent or damp out
excessive vibration but in no case greater than 12- inches from the center of the valve. Supports shall be
installed so as not to interfere with the free expansion and contraction of the system's piping, fittings, and
valves between anchors. All valves and supports shall be designed and installed so they will not be
disengaged by movement of the supporting piping.
(Reason: To provide proper security to CSST valves. These standards were established in this
region in 1999 when CSST was an emerging technology.)
Section G2421.1; add a second paragraph and exception to read as follows:
G2421.1 (410.1) Pressure regulators. A line pressure regulator shall be installed where the appliance is
designed to operate at a lower pressure than the supply system. Access shall be provided to pressure
regulators. Pressure regulators shall be protected from physical damage. Regulators installed on the exterior
of the building shall be approved for outdoor installation.
Access to regulators shall comply with the requirements for access to appliances as specified in Section
M1305.
Exception: A passageway or level service space is not required when the regulator is capable of
being serviced and removed through the required attic opening.
(Reason: To require adequate access to regulators.)
Section G2439.5; add a sentence to read as follows:
The size of duct shall not be reduced along its developed length nor at the point of termination.
(Reason: To clarify the size requirement.)
Section G2439.5.1; add a second exception 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. The maximum length of the duct shall be
reduced 21/2 feet (762 mm) for each 45 degree (0.79 rad) bend and 5 feet (1524 mm) for each 90 degree (1.6
rad) bend.
Exceptions:
1. Where the make and model of the clothes dryer to be installed is known and the manufacturer's
installation instructions for such dryer are provided to the code official, the maximum length of the
exhaust duct, including any transition duct, shall be permitted to be in accordance with the dryer
manufacturer's installation instructions.
2. Where the first 9 feet of vent are 4" diameter pipe with not over two 90 bends and the pipe size is
then increased to 5" diameter, it may extend horizontally as far as 28.5 feet to the termination
outdoors.
(Reason: Engineered dryer vent equivalent considering velocity and pressure drop.)
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: Existing approved unvented heaters may continue to be used in dwelling units, in
accordance with the code provisions in effect when installed, when approved by the Code Official
unless an unsafe condition is determined to exist as described in International Fuel Gas Code Section
108.7.
(Reason: Gives code official discretion.)
Section P2503.5.1, item 1; add a second paragraph to read as follows:
P2503.5.1 Rough plumbing. DWV systems shall be tested on completion of the rough piping installation by
water or air with no evidence of leakage. Either test shall be applied to the drainage system in its entirety or in
sections after rough piping has been installed, as follows:
1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the
highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in
the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection.
Shower receptors shall be tested for water tightness by filling with water to the level of the rough threshold.
The drain shall be plugged in a manner so that both sides of pans shall be subjected to the test at the point
where it is clamped to the drain.
2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi)
(34 kPa) or 10 inches of mercury column (2488 Pa). This pressure shall be held without introduction of
additional air for a period of 15 minutes.
(Reason: To clarify that a water test is required for a shower receptor.)
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 regular intervals as required by the Cross Connection Control
Policy, Ordinance No. 699. least annually
(Reason: Recognize TECQ or other local testing procedures that must be adhered to.)
Section P2603.6.1; change to read as follows:
P2603.6.1 Sewer depth. Building sewers that connect to private sewage disposal systems shall be a minimum
of twelve 02) inches ( 304 mm) below finished grade at the point of septic tank connection. Building sewers
shall be a minimum of 12 inches (304 mm) below grade.
(Reason: Provides sewer depth that is common in this region.)
Section P2708.1; add a sentence to read as follows:
Shower thresholds shall be of sufficient width to accommodate a minimum twenty -two (22) inch (559 mm)
door.
(Reason: To provide more specific requirements.)
Section P2709.1; add an exception to read as follows:
Exception: Showers designed to comply with ICC /ANSI Al 17.1.
Section P2803.6.1; change to read as follows:
P2803.6.1 Requirements of discharge pipe. The outlet of a pressure relief valve, temperature relief valve or
combination thereof, shall not be directly connected to the drainage system. The discharge from the relief
valve shall be piped full size separately to +h° ri, f c - riwF, to the outside of the building or to an indirect waste
receptor located inside the building. in areas su;jest tO #eez+ng, theFel+ef valve shall discharge +h Fo gh an air
gap Onto an i Rd i FeGt waste FeGeptOF IGGated within a heated spaGe, eF by otheF appFeved means. The discharge
pipe shall not discharge into the pan required by section P2801.5.
The discharge shall be installed in a manner that does not cause personal injury or property damage and that
is readily observable by the building occupants. The discharge from a relief valve shall not be trapped. The
diameter of the discharge piping shall not be less than the diameter of the relief valve outlet. The discharge
pipe shall be installed so as to drain by gravity flow and shall terminate atmospherically pointing downward nGt
mnro than C. inrhoc /1 F7 mm) ohn „o the +lnnr When discharging outside the building, the point of discharge
shall not be more than two (2) feet (610 mm) nor less than six (6) inches 0 52 mm) above the ground or floor
level of the area receiving the discharge. outlet end of the discharge pipe shall not be threaded nor have a
valve installed.
(Reason: To provide a higher degree of safety.)
Table P2904.4.1; delete "Polybutylene (PB) plastic pipe and tubing ".
Sections P2904.5, 2904.5.1 and 2904.15; delete reference to "PB" plastic pipe.
(Reason: Polybutylene pipe is not allowed for use in this region.)
Section P3005.2.6; changed to read as follows:
P3005.2.6 Upper terminal Qase of st Each horizontal drain shall be provided with a cleanout at its
uaaer terminal AGGeSSible GleaRGUtS shall be Drevmded near the base of eaGh VeFtiGal waste or semi staGk.
Exception: Cleanouts may be omitted on a horizontal drain less that five (5) feet 0524 mm) in length
unless such line is serving sinks or urinals.
(Reason: To eliminate the requirement for excessive cleanouts.)
Section P3103.1; changed 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 [number] inches above the on+iGipated cnn,ni o0o m datinn except that . . .
{remainder of section unchanged).
(Reason: To provide regional guideline on standard installation method for this area.)
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,
ovoon4 as pFeyided in Qoo #inn P3105
Section P3105.3 and Figure P3105.3; delete
(Reason: S traps may siphon dry allowing sewer gas into building.)
Section P3111.1; change to read as follows:
P3111.1 Type of fixture. A combination waste and vent system shall not serve fixtures other than floor drains,
standpipes, sinks and la +mss indirect waste receptors Combination drain and vent systems shall not
receive the discharge of a food waste grinder.
(Reason: To prevent trap siphoning of sinks and lavatories.)
Section P3111.2; change to read as follows:
P3111.2 Installation. The only vertical pipe of a combination drain and vent system shall be the connection
between the fixture drain of a sink lavatory Of standpipe, and the horizontal combination waste and vent pipe.
The maximum vertical distance shall be 8 feet (2438 mm).
(Reason: To prevent trap siphoning of sinks and lavatories.)
Sections P3112.2 and3112.3 ;delete and replace with new Section 3112.2 as follows:
P3112. Installation. Traps for island sinks and similar equipment shall be roughed in above the floor and
may be vented by extending the vent as high as possible, but not less than the drainboard height and then
returning it downward and connecting it to the horizontal sink drain immediately downstream from the vertical
fixture drain. The return vent shall be connected to the horizontal drain through a wye- branch fitting and shall,
in addition, be provided with a foot vent taken off the vertical fixture vent by means of a wve- branch
immediately below the floor and extending to the nearest partition and then through 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. Drainage fittings 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 fitting or an assembly of a forty -five (45) degree (0.79
radius), a ninety (90) degree (1.6 radius) and a forty -five (45) degree (0.79 radius) elbow in the order named.
Pipe sizing 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.
(Reason: To clarify the installation of island venting and to provide a standard installation method for
the region. An air admittance valves installed according to section 3114 is an alternate venting
method to this section.)
Part VIII- Electrical, Chapters 33 through 42; Delete and add note as follows:
Note: Chapters 33 through 42 are based on the 1999 National Electrical Code and are included here for
reference only. The National Electrical Code as adopted by separate ordinance takes precedence over these
sections.
Section E3301.1; add a sentence to read as follows:
All references to NFPA 70 shall mean the Electrical Code as adopted
Appendix G; Change section AG105 as follows:
AG105.2 Outdoor swimming pool. An outdoor swimming pool, including an
in- ground, aboveground or on- ground pool, hot tub or spa shall be provided
with a barrier which shall comply with the following
1. The top of the barrier shall be at least 48 inches (1219 mm) above grade measured on the side of
the barrier which faces away from the swimming pool. The maximum vertical clearance between
grade and the bottom of the barrier shall be 2 inches (51 mm) measured on the side of the barrier
which faces away from the swimming pool. Where the top of the pool structure is above grade,
such as an aboveground pool, the barrier may be at ground level, such as the pool structure, or
mounted on top of the pool structure. Where the barrier is mounted on top of the pool structure,
the maximum vertical clearance between the top of the pool structure and the bottom of the barrier
shall be 4 inches (102 mm).
Pre - existing fences. The installation of a swimming pool creates the requirement for the barrier
fence. A previously existing fence would not have any status under this section because the
addition of the pool creates the hazard on which the code section is based. The one exception to
this general rule is when the fence on one side of the new pool is already a pool enclosure for the
adjacent property. That fence segment which is common to another yard with a pool is a legal
nonconforming pool enclosure and need not be upgraded. Any other existing fence that is must now
becoming a pool enclosure shall comply with this section.
2. Openings in the barrier shall not allow passage of a 4- inch - diameter (102 mm) sphere
3. Solid barriers which do not have openings, such as a masonry or stone wall, shall not contain
indentations or protrusions except for normal construction tolerances and tooled masonry joints.
4. Where the barrier is composed of horizontal and vertical members and the distance between the
tops of the horizontal members is less than 45 inches (1143 mm), the horizontal members shall be
located on the swimming pool side of the fence. Spacing between vertical members shall not exceed
1.75 inches (44 mm) in width. Where there are decorative cutouts within vertical members, spacing
within the cutouts shall not exceed 1.75 inches (44 mm) in width.
5. Where the barrier is composed of horizontal and vertical members and the distance between the
tops of the horizontal members is 45 inches (1143 mm) or more, spacing between vertical members
shall not exceed 4 inches(102 mm). Where there are decorative cutouts within vertical members,
spacing within the cutouts shall not exceed 1.75 inches (44 mm) in width.
EXCEPTION: When horizontal members are part of a fence that is at least 6 feet (1830 mm) in
height, the horizontal members need not be on the pool side of the barrier and the 45 inch distance
between horizontal members does not apply.
6. Maximum mesh size for chain link fences shall be a 2.25 -inch (57 mm) square unless the fence is
provided with slats fastened at the top or the bottom which reduce the openings to not more than 1.75
inches (44 mm).
7. Where the barrier is composed of diagonal members, such as a lattice fence, the maximum opening
formed by the diagonal members shall not be more than 1.75 inches(44 mm).
8. Access gates shall comply with the requirements of Section AG105.2, Items 1 through 7, and shall
be equipped to accommodate a locking device. Pedestrian access gates shall open outward away
from the pool and shall be self - closing and have a self - latching device. Gates other than pedestrian
access shall have a O e lf- IatGh ` eV be equipped with lockable hardware or padlocks and shall
remain locked at all times when not in use.
Where the release mechanism of the self - latching device is located less than 54 inches (1372 mm)
from the bottom of the gate, the release mechanism and openings shall comply with the following:
8.1. The release mechanism shall be located on the pool side of the gate at least 3 inches (76
mm) below the top of the gate, and
8.2. The gate and barrier shall have no opening greater than 0.5 inch (12.7 mm) within 18 inches
(457 mm) of the release mechanism.
Vehicle pates designed or intended to be used on a regular basis may be automatic closing rather
than maintained locked. Automatic pates may be opened by a key or switch (fixed or remote) but the
pate shall automatically close within one to two minutes without requiring any additional action on the
part of the person who opened it.
9. Where a wall of a dwelling serves as part of the barrier one of the following conditions shall be met:
9.1. The pool shall be equipped with a powered safety cover in compliance with ASTM F1346; or
9.2. All doors with direct access to the pool through that wall shall be equipped with an alarm
which produces an audible warning when the door and its screen, if present, are opened. The
alarm shall sound continuously for a minimum of 30 seconds immediately after the door is opened
and be capable of being heard throughout the house during normal household activities. The
alarm shall automatically reset under all conditions. The alarm system shall be equipped with a
manual means, such as touchpad or switch, to temporarily deactivate the alarm for a single
opening. Such deactivation shall last for not more than 15 seconds. The deactivation switch(es)
shall be located at least 54 inches (1372 mm) above the threshold of the door; or
9.3. Other means of protection, such as self - closing doors with self - latching devices, which are
approved by the governing body, shall be acceptable so long as the degree of protection afforded
is not less than the protection afforded by Item 9.1 or 9.2 described above
10. Where an aboveground pool structure is used as a barrier or where the barrier is mounted on top
of the pool structure, and the means of access is a ladder or steps, then:
10.1. The ladder or steps shall be capable of being secured, locked or removed to prevent access,
or
10.2. The ladder or steps shall be surrounded by a barrier which meets the requirements of
Section AG105.2, Items 1 through 9. When the ladder or steps are secured, locked or removed,
any opening created shall not allow the passage of a 4- inch - diameter (102 mm) sphere.
(Reason: To allow for special conditions while retaining essentially the same degree of safety.)
END OF AMENDMENTS.