HomeMy WebLinkAboutOrd 371-2008 Adopting 2006 IBC and IRC.pdfCITY OF ANNA, TEXAS
ORDINANCE NO. 371-2008
AN ORDINANCE OF THE CITY OF ANNA, TEXAS, ADOPTING THE 2006
EDITION OF THE INTERNATIONAL BUILDING CODE AND THE 2006
EDITION OF THE INTERNATIONAL RESIDENTIAL CODE; ADOPTING THE
NORTH CENTRAL TEXAS COUNCIL OF GOVERNMENTS RECOMMENDED
AMENDMENTS, AS AMENDED HEREIN; ADOPTING A SCHEDULE OF
FEES; PROVIDING A REPEALER CLAUSE; PROVIDING A SAVINGS
CLAUSE; AND PROVIDING FOR AN EFFECTIVE DATE
WHEREAS, the City Council has determined the need for revising the City's existing Building
Code and Residential Code; and
WHEREAS, the state had mandated that the International Codes or comparable regulations are
to be used B the City intends to regulate building construction; and
WHEREAS, the other cities in the North Central Texas area have adopted or intend to adopt the
International Codes and the city council desires that the City of Anna should have building
standards comparable to other cities in the area; now therefore
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF ANNA, TEXAS:
Section 1. International Building Code and International Residential Codes adopted.
The city council hereby adopts the 2006 Edition of the International Building Code and the 2006
Edition of the International Residential Code, excluding all references to the 2003 International
Energy Conservation Code and the 2003 Intemational Property Maintenance Code. Copies of
the Codes, and the amendments thereto, as referenced herein, are on file in the office of the city
secretary for permanent record and inspection. The mayor, or his authorized representative, is
hereby authorized and directed to enforce all provisions of the International Building Code and
International Residential Code, as adopted herein and as amended.
Section 2. Amendments.
The city council hereby adopts the North Central Texas Council of Governments Recommended
Amendments, which are attached to this ordinance as Attachment A.
Ord. No. 371-2009 Adoptag IBC & IRC Codes
Section 3. Inspection and service fees.
The schedule of fees for various inspection and other services performed by the code
enforcement official, as detailed in Attachment B, shall be paid to the city before any permit is
issued.
Section 4 Repeal Clause
All parts of any ordinance in conflict with the provisions of this ordinance are to the extent of
such conflict hereby repealed.
Section 6 Savinas Clause
If any provision of this ordinance shall be held to be invalid or unconstitutional, the remainder
of such ordinance shall continue in full force and effect the same as d such invalid or
unconstitutional provision had never been a part hereof.
Section 6 Effective Date
This ordinance shall be effective upon the posting andfor publication of its caption as required
by law and the City Secretary is hereby directed to implement such posting and/or publication.
PASSED by the City Council of the City of Anna, Texas, this 8th day of April, 2008,
AYE 6 NAY 0 ABSTAIN 0
City ecretary, Natha Wilkison Mayor, Kenneth Pelham
ATTACHMENTA
Ord. No. 371-2008 Adopting IBC & IRC Codes 3 04-08-08
Recommended Amendments to the
2006 International Building Code
North Central Texas Council of Governments region
The following sections, paragraphs, and sentences of the 2006 International Building Code are hereby
amended as follows: Standard type is text from the IBC. Underlined type is text inserted. Lined-thwugh
type is deleted text from . A double asterisk at the beginning of a section identifies an amendment
carded over from the 2003 edition of the code and a triple asterisk identifies a new or revised amendment
with the 2006 code.
Explanation of Options A and B:
Please note that as there is a wide range in fire fighting philosophies / capabilities of cities across the
region, OPTION A" and OPTION "B" am provided in the Fire and Building Code amendments.
Jurisdictions should choose one or the other based on their fighting philosophies I capabilities when
adopting code amendments
"Section 101.4; change to read as follows:
101.4 Referenced codes. The other codes listed in Sections 101.4.1 through 101.4.7 and referenced
elsewhere in this code, when specifically adopted, shall be considered part of the requirements of this
code to the prescribed extend of each such reference. Whenever amendments have been adopted to
(Reason: Legal wording to recognize locally adopted codes and amendments adopted with referenced
codes)
*'Section 109.35; delete.
(Reason: Lath or gypsum board inspections are not normally performed in this area.)
Option A
"Section 202; add a new definition to read as follows:
HIGH-RISE BUILDING. A building having any floor used for human occupancy located more than 75 feet
(22 060 mm) above the lowest level of fire department vehicle access.
Option S
**Section 202; add a new definition to read as follows:
HIGH-RISE BUILDING. A building having any floor used for human occupancy located more than 55 feet
06 764 mm) above the lowest level of fire department vehicle access.
(Reason: To define high-rise, as it influences sprinkler requirement thresholds based on the fire fighting
capabilities of a jurisdiction.)
North Central Texas 1 September 2007
2006 IBC amendments
—Section 304.1; add the following to the list of occupancies:
Fire stations
Police stations with detention facilities for 5 or less
(Reason: Consistent with regional pracbee dating back to the legacy codes.)
Option A
**Section 403.1; no change required.,
403.1 Applicability. The provisions of this section shall apply to buildings with an occupied floor located
more than 75 feet (22 660 mm) above the lowest level of fire department vehicle access.
Option S
"Section 403.1; change to read as follows:
403.1 Applicability. The provisions of this section shall apply to buildings. with an occupied floor located
more than 75 55 feet (22-660 16 764 mm) above the lowest level of fire department vehicle access.
(Reason: To correct and clarify definition of high-rise for Option B jurisdictions.)
"Section 403.1, exception #3; change to read as follows:
3. Open air portions of buildings Buildings with an occupancy in Group A-5 in accordance with
Section 303.1
(Reason: To clarify enclosed portions of skyboxes and restaurants shall still be considered as high-rise
construction.)
"Section 403.$ exception #2; delete.
(Reason: To provide adequate fire protection to enclosed areas.)
-Section 404.1.1; change definition of "Atrium" as follows:
ATRIUM. An opening connecting two three or more stories ... (Balance remains unchanged)
(Reason: Code is too restrictive. Section 1020 permits unenclosed two story stairways under certain
circumstances.)
North Central Texas
2006 ISO amendments
"Section 406.1.4; add item #4 to read as follows:
(Reason: Reflects regional practice.)
TM Section 406.2.7 Change reference section as follows
406.2.7 Mixed Separation. Parking garages shall be separated from other occupancies in accordance
with Section 588:3 508.
(Reason: Section 508 provides a more complete range of options for separation. Parking garages are
sometimes an incidental use and sometimes a separate occupancy.)
"*Section 406.6.1; add a second paragraph to read as follows:
(Reason: To further clarify types of service work allowed in a repair garage, as well as to correspond with
definition in the IFC.)
"Section 506.2.2; add a sentence to read as follows:
In order to be considered as accessible if not in direct contact with a street or fire lane a minimum 10 -
foot wide Pathway from the street or approved fire lane shall be Provided for hose lav measurement
Pathway requirements.)
(Reason: To define what is considered accessible. Consistent with regional amendment to IFC 503.1.1.)
—Section 508.2.1, change to read as follows.
508.2.1 Occupancy Classification. An incidental use area shall be classified in accordance with the
occupancy of that portion of the building in which it is located_ nF the build a@ shall be Glassified Ag a
mixed eG6upanGy and shall comply with Section 508,3.
Exception: Incidental use areas within and serving a dwelling unit am not required to comply with
this section.
(Reason: To be consistentwith 20061.B.C. reference sections.)
""Section 508.3.1 Exception #2: Change to read as follows:
Assembly areas that are accessory to Group E Occupancies are not considered separate occupancies
except when applying the assembly occupancy requirements of Chapters 10 and 11.
North Central Texas 3 September 2007
2006 IBC amendments
(Reason: The committee determined that the exiting requirements for Group A occupancies should apply
to assembly occupancies in schools.)
—Table 602; amend footnote b by the addition of the following sentence:
b. For special requirements for Group U occupancies see Section 406.1.2. Group R-3 and
Group U when used as accessory to Group R-3 as applicable in 101.2 shall not be
required to have a fire resistance retina where fire separation distance is 3 feet or more
GroupR-2 and Grou U carbon, as applicable in 406.1.4 exception 4 shall be required to
have a fire -resistance rating where fire separation distance is 10 feet or less.
(Reason: Editorial; corresponds with regional amendment to 406.1.4)
"Section 705.11; change the exception to read as follows:
Exception: For other than hazardous exhaust ducts, penetrations penetrations by ducts and air transfer
openings of ... {remainder of exception unchanged).
(Reason: To distinguish that hazardous exhaust ducts are a special case to be treated differently.)
"• 706.3.9; change to read as follows:
706.3.9 single otmupancy fire Fire areas. The fire barrier or horizontal assembly, or both, separating a
single-eesupansy occupancies into different fire areas shall have a fire -resistance rating of not less than
that indicated in Table 706.3.9 for a single. occupa cy and the most.. restrictive value Indicated in Table
(Reason: To address and to clearly define the minimum value of fire barriers separating mixed
occupancies fire areas.)
`Section 707.2; change exception number 7 as follows:
7. In other than Groups 1-2 and 1-3, a shaft enclosure is not required for a floor opening or an air transfer
opening that complies with the following:
7.1. Does not connect more than two stories.
7.2. Is not part of the required means of egress system, except as permitted in Section 1020.1.
7.3. Is not concealed within the building construction.
7.4. is not open to a corridor in Group 1 and R ixxxilkanGles,.
7:6: 7.4 is separated from floor openings and air transfer openings serving other floors by
construction conforming to required shaft enclosures.
7-.7-. 7_5 Is limited to the same smoke compartment.
(Reason: To be consistent with regionally accepted practices.)
"Section 716.5.2; add exception #4 to read as follows.
4. In the duct penetration of the separation between the private garage and its residence when
constructed in accordance with Section 406.1.4. exception #2.
(Reason: To exclude specific penetration from fire damper requirements.)
North Central Texas 4 September 2007
2006 IBC amendments
•'Section 901.S.t.f Standpipe Testing; add section to read as follows:
systems.
3. Any pressure relief, reducing, or control valves shall be tested in accordance with the requirements
of NFPA 25.
4. If the FDC is not already Provided with approved cap% the contractor shall install such caps for all
FDC's. Contact the Fire Marshal for additional information.
7. Additionally, records of the testing shall be maintained by the owner and contractor, as required
by the State Rules mentioned above and NFPA 25.
B. Standpipe system tests where water will be flowed external to the building shall not be conducted
during freezing conditions or during the day prior to expected night time freezing conditions
(Reason: Increases the reliability of the fire protectfon system and re-emphasizes the requirements of
NFPA 25.)
North Central Texas 5 September 2007
2006 IBC amendments
'"Section 901.7; change to read as follows:
901.7 Systems out of service. Where a required fire protection system is out of service or in the event
of an excessive number of activations, the fire department and the code official shall be notified
immediately and, where required by the code official, the building shall either be evacuated or an
approved fire watch shall be provided for all occupants left unprotected by the shut down unfit the fire
protection system has been returned to service.
(Reason: Gives Fire Chief more discretion. Requires adoption of definition amendment in Section 202.)
""Section 903.2; delete the exception.
(Reason: These areas pose a fire risk to the structural integrity of the building.)
-Add Section 903.2.8.3 to read as follows:
903.2.8.3 Self-service storage facility. An automatic sprinkler system shall be installed throughout all
self-service storage facilities
Exception: One-story self-service storage facilities that have no interior corridors with a one-
hour fire barrier separation wall installed between every storage compartment.
(Reason: Fire departments are unable to inspect these commercial occupancies and are unaware of the
contents being stored.)
-Amend Section 903.2.10 to read as follows
[F] 903.2.10 Windowless steFies In aH All occupancies except groups R-3 and U. An automatic
sprinkler system shall be installed in the locations set forth in Sections 903.2.10.1 through 903.2.10.1.3.
Exception; Gmup R 3 and Group U.
(Reason: Current title of windowless stories in all occupancies does not currently cover all the
subsections listed and referenced.
"Section 903.2.10; amend 903.2.10.3 and add 903.2.10.4, 903.2.10.5, and 903.2.10.6 as follows:
903.2.10.3 Buildings more than 55 feet in height. An automatic sprinkler system shall be installed
throughout buildings with a floor level other than penthouses in compliance with Section 1509 of the
International Building Code, having an essupant lead Of 30 OF MOM that is located 55 feet (16 764 mm) or
more above the lowest level of fire department vehicle access.
Exception:
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2—Open parking structures in compliance with Section 406.3.
3. Occupancies in Group F-2-.
North Central Texas
2006 IBC amendments
903.2.10.4 High -Piled Combustible Storage. For any building with a clear heioht exceedina 12 feet
(4572 mm) see Chapter 23 to determine if those provisions apply.
903.2.10.5 Spout Booths and Rooms. New and existing spray booths and spraying rooms shall be
protected by an approved automatic fire -extinguishing system
Option B
"Section 903.2.10; amend 903.2.10.3 and add 903.2.10.4, 903.2.10.5, and 903.2.10.6 as follows:
903.2.10.3 Buildings more than 55 35 feet in height. An automatic sprinkler system shall be installed
throughout buildings with a floor level other than penthouses in compliance with Section 1509 of the
International Building Code, having an occupant load of 30 OF mom that is located 56 35 feet (46-764 10
668mm) or more above the lowest level of fire department vehicle access.
Exception:
2 --Open parking structures
2—Open parking structures in compliance with Section 406.3.
903.2.10.4 High -Piled Combustible Storage. For any building with a clear height exceeding 12 feet
(4572 mm) see Chapter 23 to determine if those provisions apply.
903.2.10.5 Spray Booths and Rooms. New and existing spray booths and spraying rooms shall be
Protected by an approved automatic fire -extinguishing system.
903.2.10.6 Buildinas Over 6,000 s .ft. An automaticsprinkler system shall be installed throughout all
buildings with a building area over 6.000 soft. For the purpose of this provision fire walls shall not define
separate buildings.
Exceptions:
1. Open Parking garages in compliance with Section 406.3 of the International Building Code.
2. Group A-5oocupancies.
(Reason: Refiect local practices.)
-Section 903.3.1.1.1; change to read as follows:
903.3.1.1.1 Exempt locations. When approved by the code official automatic Automatic sprinklers shall
not be required in the following rooms or areas where such ... {bulk of section unchanged) ... because it
is damp, of fire -resistance -rated construction or contains electrical equipment.
i. Any room where the application of water, or flame and water, constitutes a serious life or fire
hazard.
2. Any room or space where sprinklers are considered undesirable because of the nature of the
contents, when approved by the code official.
3. Generator and transformer rooms, under the direct control of a public utility. separated from the
remainder of the building by walls and floormeiling or rooficeiling assemblies having a fire -
resistance rating of not less than 2 hours.
4 In re -m- or are-, that am of nonnaffill isfible sons"et on with wholly AGAGOMIN isbhle contents
(Reason: Gives more discretion to code official. Protects locations where fire risks are poorly addressed.)
North Central Texas 7 September 2007
2006 IBC amendments
"Section 903.3.5; add a second paragraph to read as follows:
(Reason: To define uniform safety factor.)
"Section 903.4; add a second paragraph after the exceptions to read as follows:
(Reason: To avoid significant water losses. Consistent with amendment to 1FC 905.9.)
—Section 903.4.2; add second paragraph to read as follows:
(Reason: Fire department connections are not always located at the riser, this allows the fire department
faster access.)
"Add Section 903.6 to read as follows:
903.6 Spray booths and rooms. New and existing spray booths and spray rooms shall be protected by
an approved automatic fire -extinguishing system in accordance with Section 1504
(Reason: Consistent with amendment to IFC 1504.)
"Section 905.2; change to read as follows:
905.2 Installation standards. Standpipe systems shall be installed in accordance with this section and
NFPA 14. Manual tlry standpipe systems shall be supervised with a minimum of 10 osis and a maximum
(Reason: To define manual dry standpipe supervision requirements.)
Add Section 905.3.8: Building Area.
North Central Texas 8 September 2007
2006 IBC amendments
Exception: Automatic dry and semi-automatic dry standpipes are allowed as provided for in
NFPA 14.
(Reason: Allows for the rapid deployment of hosefines to the body of the fire.)
.. Section 905.4, item #5; change to read as follows:
S. Where the roof has a slope less than four units vertical in 12 units horizontal (33.3 -percent slope),
each standpipe shall be provided with a two-whose connection located either... (remainder of
paragraph unchanged) ...
(Reason: Reduced the amount of pressure required to facilitate testing, and provides backup protection
for fire righter safety.)
—Section 905.9; add a second paragraph after the exceptions to read as follows:
shall be electrically supervised to initiate a supervisory signal at the central station upon tam nn .
(Reason: To avoid significant water losses. Consistent with amendment to IFC 903.4)
Add Section 907. f.3 to read as follows:
months of permit application.
(Reason: Consistent with focal practice.)
"Section 907.2.1 change to read as follows;
907.2.1 Group A. A manual fire alarm system shall be installed in Group A occupancies having an
occupant load of 300 or more persons or more than 100 persons above or below the lowest level of exit
discharge. Portions of Group E occupancies occupied for assembly purposes shall be provided with a
fire alarm system as required for the Group E occupancy.
(Reason: Increases the requirement is changed to be consistent with Group B requirement.)
North Central Texas 9 September 2007
2006 IBC amendments
--Section 907.2.3; change to read as Wlows:
907.2.3 Group E. A manual fire alarm system shall be installed in Group E educational occupancies.
When automatic sprinkler systems or smoke detectors are installed, such systems or detectors shall be
connected to the building fire alarm system. An approved smoke detections stem shall be installed in
(Reason: To distinguish educational from day care occupancy minimum protection requirements. Further,
to define threshold at which portable buildings are considered a separate building for the purposes of
alarm systems.)
"Section 907.2.3; change exception #1 and add exception #1.1 to read as follows;
1. Group E educational and day care occupancies with an occupant load of less than 50 when
provided with an approved automatic sprinkler system.
(Reason: Consistent with Texas State laws concerning day care facility requirements.)
Option A
=HIgh.dse
change required:
ldings. Buildings having a Hour used for human occupancy located more than 75
e the lowest level (balance unchanged)
Option B
"Section 907.2.12; change to read as follows:
907.2.12 High-rise buildings. Buildings having a floor used for human occupancy located more than 7b
55 feet (2256016 764 mm) above the lowest level of fire department vehicle access shall be provided
with an automatic fire alarm system and an emergency voice/alarm communications system in
accordance with Section 907.2.12.2.
(Reason: To correct definition of high-rise for Option B jurisdictions.)
North Central Texas 10 September 2007
2006 IBC amendments
-*Section 907.2.1$ exception #3; change to read as follows:
3. Buildings with an occupancy in Group A-5
(Reason: To indicate that enclosed areas within open air seating type occupancies are not excepted from
automatic fire alarm system requirements.)
-Section 907.4; add a second paragraph to read as follows:
Manual alar actuating devices shall be an approved double action type
(Reason: Consistent with local requirements.)
•. Add Section 907.6.1 to read as follows:
(Reason: To provide uniformity in system specifications and guidance to design engineers.)
Option A
'"'Section 907.8.2; no change required:
907.8.2 High-rise buildings. In buildings that have a floor located more than 75 feet (22 860 mm) above
the ... {remainder of section unchanged).
Option B
—Section 907.8.2; change to read as follows:
907.8.2 High-rise buildings. In buildings that have a floor located more than 75 55 feet (22 860 16 764
mm) above the ... (remainder of section unchanged).
(Reason: Correct definition of high-rise for Option B jurisdictions.)
North Central Texas 11 September 2007
2006 IBC amendments
*"Section 910.1; Amend exception 2 to read as follows:
2. Where areas of buildings are equipped with
(Reason: Allows the fire department to control the smoke and heat during and after a fire event.)
—Section 910.2.4; Add Section 910.2.4 Group H, to read as follows:
910.2.4 Group H. Buildings and portions thereof used as a Group H occupancy as follows:
(Reason: Maintain the current level of protection as outlined in the 2003 Co(m.)
—Table 910.3; Change the title of the first row of the table to read as follows:
IF) TABLE 910.5
FOR DRAFT CURTAINS AND SMOKE
(Reason: Consistency with the amendment 910.2.4 to include Group H)
' Section 910.3.2.2; Add second paragraph to read as follows:
North Central Texas 12 September 2007
2006 IBC amendments
MINIMUM
MAXIMUM
MAXIMUM
MAXIMUM
OCCUPANCY
DESIGNATED
DRAFT
AREA
VENT•
SPACING OFGROUP
TO
STORAGE
CURTAIN
FORMED BY
AREATO-
VENT
VENTS FROM
COMMODITY OMMODND
HEIGHT
DEPTH
DRAFT
FLOOR -AREA
CENTERS
WALL OR
CLASSIFICATION
(ha) 0""
CURTAINS
RATIOS
(
DRAFT
taquarefirt)
CURTAIN&
(%.p
Group F-1 H
50,000
1:100
— but 24a
120
60
and S-1
(Balance Of
table remains
unchanged)
(Reason: Consistency with the amendment 910.2.4 to include Group H)
' Section 910.3.2.2; Add second paragraph to read as follows:
North Central Texas 12 September 2007
2006 IBC amendments
(Reason: Specifies a temperature range at which smoke and heat vents should activate in sprinklered
buildings to ensure that the sprinkler system has an opportunity to activate and control the fire prior to
vent operation. The intent is to allow the sprinkler system to operate prior to allowing the smoke and heat
vents to operate so as not to pose a detriment to the operation of the sprinkler system. This follows
recommendations indicated in NFPA 204, Section F.3 with regards to Design Considerations of smoke
and heat vents in sprinklered buildings. Full scale fire testing results have shown that smoke and heat
venting is potentially detrimental to the proper operation of the sprinkler system when vents are open prior
to sprinkler activation. This was a primary reason for removing smoke and heat venting requirements
with regards to ESFR sprinkler systems in Article 23 of the IFC for high -piled storage.)
*`*Section 913; add section to read as follows:
SECTION 913
FIRE PUMP ROOM
9131 General. Where provided fire pumps shall be installed in a room designed and constructed in
accordance with this section Section 913 of the international Fire Code and NFPA 20
(Reason: This requirement allows fire fighters safer access to the fire pump room. The requirement
allows access without being required to enter the building and locate the fire pump room interior access
door during a fire event. The exception recognizes that this will not always be a feasible design scenario
for some buildings, and as such, provides an acceptable alternative to protect the pathway to the fire
pump room.)
***Section 1004.1.1; Delete exception as follows:
1004.1.1 Areas without fixed seating. The number of occupants shall be computed at the rate of one
occupant per unit of area as prescribed in Table 1004.1.1. For areas without fixed seating, the occupant
load shall not be less than that number determined by dividing the floor area under consideration by the
occupant per unit of area factor assigned to the occupancy as set forth in Table 1004.1.1. Where an
intended use is not listed in Table 1004.1.1, the building official shall establish a use based on a listed
use that most nearly resembles the Intended use.
(Reason: Consistent with local practice.)
North Central Texas 13 September 2007
2006 IBC amendments
"Section 1017.1; add an exception #5 to read as follows:
(Reason: To reduce redundant requirements in a single tenant situation. Consistent with regional
amendment to IFC 1017.1.)
Option A
--Section 1020.1.7; change to read as follows:
1020.1.7 Smokeproof enclosures. In buildings required to comply with Section 403 or 405, each of the
exits of a building that serves a storiesy where the floor surface is located more than 75 feet (22 660 mm)
above the lowest level of fire ... {remainder ofsection unchanged}
Option B
**Section 1020.1.7; change to read as follows:
1020.1.7 Smokeproof enclosures. In buildings required to comply with Section 403 or 405, each of the
exits of a building that serves a storiesy where the floor surface is located more than 76 55 feet (22-860
16 764 mm) above the lowest level of fire ... (remainder of section unchanged).
(Reason: Correct dimension for Option Bjudsdictions and clarify only one floor need be above the
threshold.)
"Section 1101.2; add an exception to read as follows:
(Reason: To accommodate buildings regulated under Texas State law.)
"Section 1109.2.1; change to read as follows
1109.2.1 Unisex toilet and bathing rooms. In assembly and mercantile occupancies, an accessible
unisex toilet room shall be provided where an aggregate of six or more male and or female water closets
is are requiredroo vided. In buildings of mixed occupancy, only those water closets ... {remainder of
section unchanged).
(Reason: Amendment is necessary to coincide with amendments in IBC Chapter 29.)
North Central Texas 14 September 2007
2006 IBC amendments
"Section 1210.2, exception #2; change to read as follows:
2. Toilet rooms that are not accessible to the public and which have not more than one water closet,
provided that walls around urinals comply with the minimum surrounding material specified by Section
419.3 of the international Plumbing Code
(Reason: Recognize the minimum wall material requirements of the IPC. Consistent with regional
amendment to IPC 419.3.)
**Table 1505.1; replace footnotes b and c with the following
(Reason: Conforms to local practice affording increased fire protection.)
"Section 1505.7; delete.
(Reason: Conforms to local practice.)
**Add Section 2308.23 to read as follows:
2308.2.3 Application to engineered desion. When accepted by the Building Official, any portion of this
section is permitted to apply to buildings that are otherwise outside the limitations of this section provided
that:
1. The resuffing design will comply with the requirements specified in Chapter 16;
2. The load limitations of various elements of this section are not exceeded: and
3 The portions of this section which will apply are Identified by an engineer in the construction
(Reason., Allows engineer to reference Section 2308 for designs for wood structures like four story
apartment buildings; eliminates excessive engineering.)
"Section 2901.1; add a sentence to read as follows:
(Reason: Gives building official discretion.)
North Central Texas 15 September 2007
2006 IBC amendments
" Section 2902.1; change to read as follows and add sub sections:
2902.1 Minimum number of fixtures. Plumbing fixtures shall be provided for the type of occupancy and
in the minimum number as foilows�
1. Assembly Occupancies: At least one drinking fountain shall be provided at each floor level in
an approved location.
Exception: A drinking fountain need not be Provided in a drinking or dining
establishment.
2. Groups A. B. F. H.1, M and S Occupancies: Buildings or portions thereof where persons are
3. Group E Occupancies: Shall be provided with fixtures as shown in Table 2902.1.
4. Group R Occu ancies: Shall be provided with fixtures as shown in Table 2902.1.
considered individually by the building code official. The number of occupants shall be determined by this
code. Occupancy classification shall be determined in accordance with Chapter 3.
(Reason: To allow flexibility for designer to consider speck occupancy needs.)
"Section 2902.6; add an exception to read as follows:
2902.6 Finish material. Finish materials shall comply with Section 1210.
(Reason: Consistent with regional amendments made to IPC Section 403.1.2.)
"Section 3109.1; add a section to read as follows:
3109.1 General. Swimming pools shall comply with the requirements of this section and other applicable
sections of this code. Provisions of this section shall not be deemed to nullify any provisions of state law
or state code.
(Reason: to recognize "state requirements')
North Central Texas 16 September 2007
2006 IBC amendments
Recommended Amendments to the
2006 International Residential Code
North Central Texas Council of Governments region
The following sections, paragraphs, and sentences of the 2006 International Residential Code are hereby
amended as follows: Standard type is text from the IRC. Underlined type is text inserted. Lined -through
type a deleted text train . A double asterisk at the beginning of a section identifies an amendment
canted over from the 2003 edition of the code and a triple asterisk identifies a new or revised amendment
with the 2006 code.
*'Section R1024; 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
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.)
—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 Table R301.2(1), 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 discretion.)
—Section R110 (R110.1 through R110.5); delete.
(Reason: Issuing CO's for residences is not a common practice in the area.)
"Section R112.2.1 & Rf1122.2 delete.
(Reason: Floodplain provisions are addressed locally.)
North Central Texas 1 September 2007
2006 IRC Amendments
-*Section R202; add the following definition:
(Reason: Since the window to wall area ratios have been added to the prescriptive tables, it is necessary
to define glazing area.)
'*Section R202; change definition of "Townhouse" to read as follows.,
TOWNHOUSE. A single-family dwelling unit constructed in a group of-three-ermere attached units
separated by Property lines in which each unit extends from foundation to roof and with open space on at
least two sides.
(Reason: Consistent with terminology commonly used in this region.)
—Table R301.2(f); rill /n as follows:
GROUND SNOW LOAD WIND SPEED' (mph) SEISMIC DESIGN CATEGORYr
5 Ib(flz 90 (3-sec-gust)/75 fastest mile A
WINTERSIGN
SUBJECT TO DAMAGE FROM
Weathering'
Frost line depth" Termite
moderate
6"1 very heavy
WINTERSIGN
E SHIELD UNDER-
LAYMENT REQUIIR Dh
FLOODAIR
HAZAR Ss
( DE>Z
MEAT MNP UAL
22'F
No
local code
69'F
64.9'F
No change to footnotes
(Reason: To promote regional uniformity.)
—Section R302.1; add a fourth exception as follows:
Exceptions:
1. Detached tool sheds and storage sheds, playhouses and similar structures exempted from
permits 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. Detached garages accessory to a dwelling located within 2 feet (610 mm) of a lot line are
permitted to have roof save projections not exceeding 4 inches (102 mm).
3. Foundation vents installed in compliance with this code are permitted.
North Central Texas 2 September 2007
2006 IRC Amendments
(Reason: Refers to other ordinances, such as zoning ordinances.)
'"Section 8303.3, 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 cfrn (24 Us) for intermittent ventilation or 20 cfrn (10
Us) for continuous ventilation. Ventilation air from the space shall be exhausted directly to the
outside.
(Reason: Consistent with common local practice.)
"Section R303.8; change to read as follows
R303.8 Required heating. OF
(460C),eyeEES 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. (Remainder of section unchanged)
(Reason: Specifies requirement for this area.)
-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/&inch 05 8 mm) fire -rated 112 -inch -(12.
gypsum board or one-hour fire -resistive construction.
(Reason: Represents the standard protection method used in this area.)
—Section R317.1; add a third exception to read as follows:
Exceptions:
1. (existing exception
2. (existing exception
(Reason: Provide guidance for a common construction method in this area. Correlates with amendment
to IRC Section R202 Townhouse definition.)
North Central Texas 3 September 2007
2006 IRC Amendments
—Section R324.1; change to read as follows:
R324.1 General. Buildings and structures when permitted to be constructed in whole or in part in flood
hazard areas (including A or V Zones) as established in Table R301.2(1) 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 8703.7.4.1; add a second paragraph to read as follows
For 2.67 square feet f0.248 m1) of wall area, the following dimensions shall be adhered to:
(Reason: Provide easy to install and inspect dimensions for clarity.)
**Add Section R902.3 to read as follows:
R902.3 Minimum Roof Class. All roof coverings shall be a minimum Class C. All individual replacement
shingles or shakes shall be a minimum Class C.
(Reason: Consistent with local practice.)
*'Section R907.1; add a sentence to read as follows:
All individual replacement shingles or shakes shall comply with Section R902.3.
(Reason: Consistent with local practice. Correlates with regional amendment to R902.3.)
Amend Section 111101.2.1 to read as follows:
N1101.2.1 Warm humid counties. Warm humid counties are listed in Table N1101.2.1 and Table
N1101.2.2,
(Reason: This amendment is added to satisfy the "not less restrictive requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 7e Legislature.)
North Central Texas 4 September 2007
2006 IRC Amendments
"`Replace Section N1101.7 to read as follows:
(Reason: This amendment allows alternative compliance in accordance with Texas HE 1365, 76"
Legislature.)
—Replace Figure N1101.2 to read as follows:
DRY (B) MOIST (A)
Figure N1101.2 TEXAS CLIMATE ZONES
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 771° Legislature.)
North Central Texas 5 September 2007
2006 IRC Amendments
"`Replace Table N1101.2.Ito read as follows:
Zone
TABLE N1101.2.1
3.2
ELPASO
3.2
KERR
CLIMATE
ZONES
AND SUB CLIMATE ZONES FOR TEXAS
ARCHER
3.3
ELLIS
3.2
KIMBLE
Zone 2
RUNNELS
3.2
BAYLOR
ANDERSON
2.2
DE WITT
2.1
JIM HOGG
2.1
ORANGE
22
ANGELINA
2.2
DIMMIT
t.1
JIM WELLS
2.1
POLK
2.2
ARANSAS
2.1
DUVAL
2.1
KARNES
2.1
REAL
2.2
ATASCOSA
2.1
EDWARDS
2.2
KENEDY
2.1
REFUGIO
2.1
AUSTIN
2.2
.FALLS
2.2
KINNEY
2.2
ROBERTSON
2.2
BANDERA
2.2
FAYETTE
2.2
KLEBERG
2.1
SAN JACINTO
2.2
BASTROP
22
FORT BEND
2.2
LA SALLE
2.1
SAN PATRICK)
2.1
BEE
2.1
FREESTONE
2.2
LAVACA
2.2
STARR
2A
BELL
22
FRIO
2.1
LEE
22
TRAVIS
22
BEXAR
2.2
GALVESTON
2.1
LEON
22
TRINITY
22
BOSQUE
22
GOLIAD
2.1
LIBERTY
2.2
TYLER
22
BRAZORKA
2.1
GONZALES
2.2
LIMESTONE
2.2
UVALDE
2.2
BRAZOS
2.2
GRIMES
22
LIVE OAK
21
VALVERDE
22
BROOKS
2.1
GUADALUPE
22
MADISON
22
VICTORIA
2.1
BURLESON
2.2
HARDIN
2.2
MATAGORDA
2.1
WALKER
2.2
CALDWELL
22
HARRIS
22
MAVERICK
2.1
WALLER
22
CALHOUN
2.1
HAYS
22
MCLENNAN
2.2
WASHINGTON
2.2
CAMERON
2,1
HIDALGO
2.1
MCMULLEN
2.1
WEBB
2.1
CHAMBERS
2.2
HILL
22
MEDINA
2.2
WHARTON
2.1
CHEROKEE
2.2
HOUSTON
2.2
MILAM
2.2
WILLACY
2.1
COLORADO
2.2
JACKSON
2.1
MONTGOMERY
22
WILLIAMSON
22
COMAL
2.2
JASPER
2.2
NEWTON
22
WILSON
22
CORYELL
2.2
JEFFERSON
2.2
NUECES
2.1
ZAPATA
2.1
Zone
ANDREWS
3.2
ELPASO
3.2
KERR
3.1
ROCKWALL
3.2
ARCHER
3.3
ELLIS
3.2
KIMBLE
3.1
RUNNELS
3.2
BAYLOR
3.3
ERATH
3.2
KING
3.3
RUSK
3.2
BLANCO
3.1
FANNIN
32
KNOX
3.3
SABINE
32
BORDEN
3.3
FISHER
32
LAMAR
3.2
SAN AUGUSTINE
3.2
BOWIE
3.2
FOARD
3.3
LAMPASAS
3.2
SAN SABA
32
BREWSTER
3.1
FRANKLIN
3.2
LLANO
3.1
SCHLEICHER
3.1
BROWN
3.2
GAINES
3.3
LOVING
32
SCURRY
3.3
BURNET
3.1
GARZA
3.3
LUBBOCK
3.3
SHACKELFORD
3.2
CALLAHAN
32
GILLESPIE
3.1
LYNN
33
SHELBY
3.2
CAMP
32
GLASSCOCK
3.2
MARION
32
SMITH
3.2
CASS
3.2
GRAYSON
3.2
MARTIN
3.2
SOMERVELL
3.2
CHILDRESS
33
GREGG
3.2
MASON
3.1
STEPHENS
32
CLAY
3.3
HALL
3.4
MCCULLOCH
32
STERLING
3.2
COKE
3.2
HAMILTON
3.2
MENARD
3.1
STONEWALL
3.3
COLEMAN
3.2
HARDEMAN
33
MIDLAND
3.2
SUTTON
3.1
COLLIN
3.2
HARRISON
3.2
MILLS
32
TARRANT
32
COLLINGSWORTH
3.3
HASKELL
32
MITCHELL
3.2
TAYLOR
3.2
COMANCHE
32
HEMPHILL
34
MONTAGUE
3.2
TERRELL
3.1
CONCHO
32
HENDERSON
3.2
MORRIS
3.2
TERRY
33
COOKE
3.2
HOOD
32
MOTLEY
3.3
THROCKMORTON
3.2
COTTLE
3.3
HOPKINS
3.2
NACOGDOCHES
3.2
TRUS
3.2
CRANE
3.2
HOWARD
3.2
NAVARRO
3.2
TOM GREEN
3.2
CROCKETT
3.1
HUDSPETH
3.2
NOLAN
3.2
UPSHUR
3.2
CROSBY
3.3
HUNT
32
PALO PINTO
3.2
UPTON
3.2
North Central Texas
6
September 2007
2006 IRC Amendments
CULBERSON
3.2
IRION
3.2
PANOLA
3.2
VAN ZANOT
3.2
DALLAS
3.2
JACK
32
PARKER
3.2
WARD
3.2
DAWSON
33
JEFF DAVIS
3.2
PECOS
3.2
WHEELER
34
DELTA
3.2
JOHNSON
3.2
PRESIDIO
3.1
WICHITA
3.3
DENTON
3.2
JONES
32
RAINS
3.2
WILBARGER
3.3
DICKENS
3.3
KAUFMAN
32
REAGAN
3.2
WINKLER
3.2
EASTLAND
32
KENDALL
3.1
RED RIVER
3.2
WISE
3.2
ECTOR
3.2
KENT
3.3
REEVES
32
WOOD
3.2
FORTSEND
22
LAMAR
32
SABINE
3.2
YOUNG
3.2
FRANKLIN
3.2
LAMPASAS
3.2
Zone 4
3.2
BELL
2.2
ARMSTRONG
2.2
DEAF SMITH
22
HOCKLEY
2.2
FARMER
2.2
BAILEY
2.1
DONLEY
2.2
HUTCHINSON
2.1
POTTER
3.1
BRISCOE
2,1
FLOYD
22
LAMB
32
RANDALL
22
CARSON
3.1
GRAY
3.1
LIPSCOMB
3.2
ROBERTS
32
GASTRO
2.1
HALE
22
MOORE
3.2
SHERMAN
2.1
COCHRAN
22
HANSFORD
22
OCHILTREE
2.1
SWISHER
3.2
DALLAM
3.2
HARTLEY
2.1
OLDHAM
3.2
YOAKUM
2.2
(Reason: This amendment is added to satisfy the "not less restrictive"requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 77s Legislature.)
-'Add Table N1101.2.2 to read as follows
North Central Texas 7 September 2007
2006 IRC Amendments
TABLE N1101.2.2
WARM
HUMID COUNTIES FOR TEXAS
ANDERSON
2.2
DUVAL
2.1
KAUFMAN
32
RED RIVER
3.2
ANGELINA
22
EDWARDS
2.2
KENDALL
3.1
REAL
2.2
ARANSAS
2.1
ELLIS
3.2
KENEDY
2.1
REFUGIO
2.1
ATASCOSA
2.1
ERATH
3.2
KINNEY
2.2
ROBERTSON
2.2
AUSTIN
2.2
FALLS
2.2
KLEBERG
2.1
ROCKWALL
3.2
BANDERA
22
FAYETTE
22
LA SALLE
2.1
RUSK
32
BASTROP
2.2
FORTSEND
22
LAMAR
32
SABINE
3.2
BEE
2.1
FRANKLIN
3.2
LAMPASAS
3.2
SAN AUGUSTINE
3.2
BELL
2.2
FREESTONE
2.2
LAVACA
22
SAN JACINTO
2.2
BEYAR
2.2
FRIO
2.1
LEE
2.2
SAN PATRICK)
2.1
BLANCO
3.1
GALVESTON
2,1
LEON
22
SAN SABA
32
BOSQUE
22
GILLESPIE
3.1
LLANO
3.1
SHELBY
3.2
BOWIE
32
GOLIAD
2.1
LIBERTY
22
SMITH
3.2
BRAZORIA
2.1
GONZALES
22
LIMESTONE
22
STARR
2.1
BROWN
3.2
GREGG
3.2
LIVE OAK
2.1
SOMMERVELL
3.2
BRAZOS
2.2
GRIMES
22
MADISON
2.2
TARRANT
32
BROOKS
2.1
GUADALUPE
2.2
MARION
32
TITUS
3.2
BURLESON
22
HAMILTON
3.2
MATAGORDA
2.1
TRAVIS
22
BURNET
3.1
HARDIN
2.2
MAVERICK
2,1
TRINITY
22
CALDWELL
2.2
HARRIS
22
MCLENNAN
22
MER
2.2
CALHOUN
2.1
HARRISON
3.2
MCMULLEN
2.1
UPSHUR
3.2
CAMERON
2.1
HAYS
2.2
MEDINA
2.2
UVALDE
2.2
CHAMBERS
2.2
HENDERSON
3.2
MILAM
2.2
VAL VERDE
2.2
CAMP
3.2
HIDALGO
2.1
MILLS
3.2
VAN ZANDT
3.2
CASS
3.2
HOOD
3.2
MONTGOMERY
2.2
VICTORIA
2.1
CHEROKEE
2.2
HOPKINS
3.2
MORRIS
3.2
WALKER
2.2
COLLIN
3.2
HILL
22
NACOGDOCHES
3.2
WALLER
2.2
COLORADO
2.2
HOUSTON
2.2
NAVARRO
32
WASHINGTON
2.2
COMAL
2.2
HUNT
32
NEWTON
2.2
WEBB
2.1
North Central Texas 7 September 2007
2006 IRC Amendments
COMANCHE
3.2
JACKSON
2.1
NUECES
2.1
WHARTON
2.1
CORYELL
2.2
JASPER
2.2
ORANGE
2.2
WILLACY
2.1
DALLAS
3.2
JEFFERSON
22
PALO PINTO
3.2
WILLIAMSON
22
DELTA
32
JIM HOGG
2.1
PANOLA
32
WILSON
2.2
DENTON
3.2
JIM WELLS
2.1
PARKER
3.2
WOOD
32
DE WITT
2.1
JOHNSON
3.2
POLK
22
ZAPATA
2.1
DIMMIT
21
KARNES
2.1
RAINS
32
ZAVALA
2.1
(Reason: This amendment is added to satisfy the "not less nistrictive" requiniment when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 77`" Legislature.)
"'Amend Section N1102.1 Insulation and fenestration criteria. to read as follows:
1102.1 Insulation and fenestration criteria. The building thermal envelope shall meet the requirements
of Table N1102.1 based on the climate zone specified in Table N1101.2.
(Reason: 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.)
North Central Texas 8 September 2007
2006 IRC Amendments
""Replace Table N1102Ito read as follows:
TABLE N1102.1
INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT (TEXAS)'
M
cLP/£O
C'I-a..
-SUfl
CLIMATE
]ANE
AR5A Y0
WN.L
ARF
RARO
MAX
GLAZED
FGNESTRA'r1UN
p{p(ITOR
MAX
SKYIl4HT
[1�
FAC(OR°
MA%GLAZED
FI:. Rs io, ON
SHGC
MIN
CGILWU
R -VALUE
MMWOOU
FRAME. .aL
R VAWE
A.
W,rIL
R-
VALllE
MIN
FLOUR
R
VpLUf:
MIN
RASF.MnNT
WALL
R�VALVE
MW SLAB
R -VALUE
@DEVFH`
MIN
CRAWLSFAC.F.
WALL
N-VAIAJF.
15
0.75
0.75
0358
19
13
6
19
0
0
5
20
MO
O75
0.38
30
13
6
19
0
0
5
21
25
0.65
0.75
035
30
13
6
19
0
0
5
30
0,54
0.75
035
38
13
6
19
0
0
- 5
IS
0.65
0.75
038
30
U
6
19
5
0
6
20
065
0.75
0}8
38
13
6
19
6
0
6
23
25
0.54
0.75
035
38
13
6
19
8
0
10
30
0.46
075
0.35
38
16,13+3.7°
6
19
8
0
10
15
065
0.65
OAO
30
13
6
19
5
0
6
20
0.55
0.65
040
38
13
6
19
5
0
6
31
25
054
0.65
035
38
13
6
19
8
0
10
30
0.46
0.65
0.35
38
16,13+37°
7
19
8
0
10
15
0.60
0.65
0.40
30
13
6
19
6
0
7
20
054
0.65
0.40
38
13
6
19
6
0
7
392
25
0.51
0.65
040
38
16,13+3]°
7
19
6
0
7
30
0.46
0.65
038
38
16,13+3,7°
7
19
6
0
7
15
0.51
0.65
040
30
13
6
19
7
0
8
20
0.45
065
0.40
38
13
6
19
7
0
9
33
25
0.40
055
0.40
38
16, 13+3,7°
7
19
7
0
9
30
0.40
065
040
38
19,13+8.1°
9
19
7
0
9
15
0.45
0.60
NR
38
13
6
19
8
5, 2 R
11
20
0.37
0.60
NA
38
13
6
19
8
6,2 ft
13
3A
25
0.37
0.60
NR
38
19,13+g.1°
9
19
8
6,2ft
13
30
0.37
060
NR
38
19,13+8.1°
9
30
8
6,2ft
13
15
0.45
060
NR
38
13
8
19
8
5 2 f
11
20
037
0.60
NR
38
13
8
19
9
6,2 ft
13
4
25
037
0.60
NR
3%
19,13+8.1°
10
19
9
6,2ft
13
30
037
0,60
NR
38
19,13+8.1°
10
30
9
6,2ft
13
For SI:1 to, -304.8 rem.
R- valves are minimums, U -factors and SHGC are maximums. R-19 shall be p orrifted to be compressed into a 2 x 6 cavity.
b. The forestation U -factor column Mints skylights. The SHGC column appliu to all glued fenestration.
er R-5 shall be added to the required slab edge R -valves for heated slabs.
if The local R -value mss, be aehieved with a combini of cavity insulation and iwWating sheathing that covers 100 , of the exterior
The wall insolation may be the wm Of doe two values where doe first Valae IS rhe cavity insolation atd the second valve is insulating
shredding, The combint.. of cavity iwulatim, Its insulating sbesting may be used where s,ructwal sbwdd, coven not more
Nan 25% of the exterior call area said imabling sheathing is nuc required where stmcmral sheathing is coed If stuctural sheathing
rovers more than 25%o1fexterier wall arca then doe wall meed tion requirement may only be satisfied with the single insulation valne.
(Reason: This amendment is added to satisfy the 'not less restrictive' requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 77" Legislature.)
North Central Texas 9 September 2007
2006 IRC Amendments
'**Replace Table N1102.1.2 to read as follows:
TABLE N1102.1.2
EQUIVALENT U -FACTORS'
CLiMM1TE-
SW
CLI MAR
LONE
MA%
GLALEI)
ALLA r
WALLAREA
RAT10
MAX
C..'
fLIrAl T10N
IFFACfOK
MAX
SK1'LIONt
U-fAL'NR
MAX
CENNO
U{ACTOR
MA%W000
FAA AlvrL
USP("(OR
MAX
MASS
WALL
ll
PACTf1R
NAX
YLOOR
U{ACIDR
MAX
BASEMENT
WALL
UFA( Fk
MA%
CRAWL
SPACE
WALL
UiAQOR
IS
075
035
0,039
0.082
0.124
0.047
0360
0.136
20
090
0.75
0034
0082
0,124
0.047
0360
0.136
21
25
0.65
075
0.034
0.082
0.124
0047
0.360
0136
30
054
0.75
0.030
0082
0,124
0.047
0.360
0.136
15
0.65
0.75
0.034
0.082
0.124
0.047
0210
0.100
22
20
0.65
0.75
0030
0.082
0.124
0.047
0.210
0.100
25
054
0.75
0.030
0.082
0.124
0047
0.119
0.065
30
046
0.75
0.030
0.071
0124
1 0047
0.119
0.065
15
065
0.65
0.034
0082
0.124
0.047
0210
MOO
3.1
20
0.55
0.65
0.030
0 082
0.124
0.047
0.210
0.100
25
0.54
0.65
0.030
0.082
0.124
0.047
0.119
0.065
30
046
0.65
0030
0.071
0.112
0.047
0.119
0.065
IS
060
0.65
0034
0.082
0124
0047
0179
0.075
20
0.54
065
0030
0082
0124
0047
0.179
0075
32
25
0.51
0.65
0.030
0ffi1
0112
0.047
0.179
0.075
30
046
0.65
0.030
0.071
0.112
0.047
0.179
0.075
15
0.51
0.65
0,034
0.082
0.124
0.047
0.149
0061
20
0.45
0.65
0,030
0082
0.124
0.047
0,149
0.058
33
25
040
0.65
0030
0075
0.112
0047
0.149
0058
30
0.40
0.65
0030
0061
0094
0047
0.149
0.058
15
045
0.60
OM0
0.082
0.124
0047
0.119
0083
34
20
037
060
0.030
0.082
0124
0.047
0.119
0.152
25
0.37
060
0,030
0061
0.094
0.047
0.119
0.152
30
037
0.60
0.030
0061
0.094
0033
0.119
0.152
15
045
060
0.030
0.082
0.102
0,047
0119
0083
4
20
0.37
060
0.030
0.082
0.102
004]
0.089
0.152
25
037
060
0030
0061
0087
0047
0089
0.152
30
037
so
0.030
0.061
0.087
0033
0089
0.152
a. Noafencatmtio. U fhMll a ,dl Ix obtained tm mcesurenxnk calculation ora. app d source.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 77 Legislature.)
-Amend Section N1102.3.2 Glazed fenestration SHGC. to read as follows:
N1102.3.2 Glazed fenestration SHGC. An area -weighted average of fenestration products more than 50
percent glazed shall be permitted to satisfy the solar heat gain coefficient (SHGC) requirements. In sub
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 771° Legislature.)
North Central Texas 10 September 2007
2006 IRC Amendments
"Add Section N1102.2.11. Insulation installed in walls. to read as follow.,
(Reason: This will increase the performance of the batt insulation by eliminating the potential for drafts
and insure that the batt insulation stays in place)
Amend Section N1102.3.3 Glazed fenestration exemption. to read as follows:
N1102.3.3 Glazed fenestration exemption. Up to Via) 1 Percent of glazed
fenestration per dwelling unit shall be permitted to be exempt from U -factor and SHGC requirements in
Section 402.1.
(Reason: This amendment is added to satisfy the "not less restrictive' requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 77° Legislature.)
"` Amend Section N1102.3.5 Thermally isolated sunroom U -factor. to read as follows:
N1102.3.5 Thermally isolated sunroom U faster.
faGlershall-be 0.49�d4he4naxhgvjm4pAght-U-faster-shall-he-0:76: New windows and doom separating
the sunroom from conditioned space shall meet the building thermal envelope requirements.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 77'h Legislature.)
"' Amend Section N1102.3.6 Replacement fenestration. to read as follows:
N1102.3.6 Replacement fenestration. Where some or ail of an existing fenestration unit is replaced with
a new fenestration product, including sash and glazing, the replacement fenestration unit shall meet the
applicable requirements for U -factor in Table 011102.1 N1102.3.7.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 77" Legislature and to provide for
reasonable compliance for structures built after the adoption of codes in accordance with SS 5, 77"h
Legislature.)
—Add Section All 102.3.7 Prescriptive path for additions. to read as follows
North Central Texas 11 September 2007
2006 IRC Amendments
Conditioned sunroom additions shall maintain thermal isolation shall not be used as kitchens or sleeping
rooms.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting
subsequent editions of energy codes in accordance with Texas SB 5, 77v Legislature.)
"Add Table N7102.3.7 PRESCRIPTIVE ENVELOPE COMPONENT CRITERIA ADDITIONS TO AND
REPLACEMENT WINDOWS FOR EXISTING DETACHED ONE. AND TWO-FAMILY DWELLINGS to
read as follows:
Table N1102.3.7
PRESCRIPTIVE ENVELOPE COMPONENT CRITERIA
ADDITIONS TO AND REPLACEMENT WINDOWS FOR EXISTING DETACHED
ONE- AND TWO-FAMILY DWELLINGS'
a. "Ceiling R -value' shall be required for hal or inclined (cathedral) ceilings. Floors over outside air shall meet "Ceiling R.
value- requirements.
b. Basement wall insulation to be installed in accordance with Section N1 102 2.6.
c. "CmM space wail R -value' shalt apply to urwentliated crawl spaces only. Crewl space insulation shall be installed in
accordance with Section N 1102 2.8.
d. Sun. additions shall be required to have a maximum fenestration U -factor of 0.5. in all sub climate zones except sub
climate zone 2.1, in all sub climate tunes, the minimum ceiling R -value for sunroom additions shall be R-19 and the
minimum wail R -value shalt be R-13.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting
subsequent editions of energy Codes in accordance with Texas SB 5, 77a' Legislature.)
"*Section M1305.1.$ add text to read as follows:
M1305.1.3 Appliances in attics. Attics Containing appliances requiring access shall be provided ...
{bulk of paragraph unchanged) ... side of the appliance. The clear access opening dimensions shall be
a minimum of 20 inches by 30 inches (508 mm by 762 mm), or large where such dimensions are not
large enough to allow removal of the largest appliance. As a minimum access to the attics aceprovide
one of the following:
North Central Texas 12 September 2007
2006 IRC Amendments
MAXIMUM
MINIMUM
Basement
SUB CLIMATE
Fenestration
Ceiling
wall Floor
wall
Slab perimeter
Crawl space wall
ZONES
Ufactor
R -valuer'
R-vilue° R -value
R -value°
R -value
R -value
2.1
0.75
R-26
R43 R-11
Bus
RA
R-5
22, 3.1, 3.2, 3.3
0.50
- R-30
R-13 R-19
R-8
RA
R-10
and 3A
I
0.50
R-38
RA3 R-21
R-10
RA
R-19
a. "Ceiling R -value' shall be required for hal or inclined (cathedral) ceilings. Floors over outside air shall meet "Ceiling R.
value- requirements.
b. Basement wall insulation to be installed in accordance with Section N1 102 2.6.
c. "CmM space wail R -value' shalt apply to urwentliated crawl spaces only. Crewl space insulation shall be installed in
accordance with Section N 1102 2.8.
d. Sun. additions shall be required to have a maximum fenestration U -factor of 0.5. in all sub climate zones except sub
climate zone 2.1, in all sub climate tunes, the minimum ceiling R -value for sunroom additions shall be R-19 and the
minimum wail R -value shalt be R-13.
(Reason: This amendment is added to satisfy the "not less restrictive" requirement when adopting
subsequent editions of energy Codes in accordance with Texas SB 5, 77a' Legislature.)
"*Section M1305.1.$ add text to read as follows:
M1305.1.3 Appliances in attics. Attics Containing appliances requiring access shall be provided ...
{bulk of paragraph unchanged) ... side of the appliance. The clear access opening dimensions shall be
a minimum of 20 inches by 30 inches (508 mm by 762 mm), or large where such dimensions are not
large enough to allow removal of the largest appliance. As a minimum access to the attics aceprovide
one of the following:
North Central Texas 12 September 2007
2006 IRC Amendments
1. Apermanentstair.
2. A pull down stair.
3. An access door fm
4. Amass Panel may
Exceptions:
1. The passageway and level service space are not required where the appliance is capable of
being serviced and removed through the required opening.
2. Where the passageway is unobstructed ... {remainder unchanged)
(Reason: To provide a safe means of accessibility to appliances in attics and to allow for different types
of construction limitations. Consistent with regional amendment to IFGC and IMC 306.3.)
"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 g
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.
(Reason: Consistent with current local practice and regional amendment to IMC 304.9)
-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.
(Reason: To require thermostat wires to be protected from damage.)
' Secffon M1307.3.1; delete.
(Reason: This provision does not reflect standard practice in this area.)
'*Section M1502.3; delete and replace with the following
(Reason: To clarify the size requirement.)
"Section M1502.6; change to read as follows:
M1502.6 Duct Length. The maximum length of a clothes dryer exhaust duct shall not exceed 25 feet
(7620 mm) from the dryer location to the wail 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 measuring in the direction of airflow. The maximum length of the exhaust duct does not
include the transition duct.
North Central Texas 13 September 2007
2006 IRC Amendments
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, and provided that a 4 inch
Warning, Dryer must be approved for vent length not to exceed 40 feet Total Developed
Length (TDL)
Duct Size: (Number)
Total Developed Length: (Number)
2. Where large -radius ... (remainder unchanged)
(Reason: To make more consistent with regional practice. Dryer technology has improved to the point
where they should be capable of handling this.)
-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
W.
(Reason: Corresponds with the provisions of IFGC Section 303, exception #5.)
—Section 02407.10; change to read as follows:
G2407.10 (304.10) Louvers and grilles. The required size of openings for combustion, ventilation and
dilution air shall be based on the net free area of each opening. Where the free area through a design of
louver, grille or screen is known, it shall be used in calculating the size opening required to provide the
free area specified. Where the design and free area of louvers and grilles are not known, it shall be
assumed that wood louvers will have 25 -percent free area and metal louvers and grilles will have 75-50.
percent free area. Screens shall have a mesh size not smaller than''/, inch (6.4 mm). Nonmotonzed
louvers and grilles shall be fixed in the open position. Motorized louvers shall be interlocked with the
appliance so that they are proven to be in the full open position prior to main burner ignition and during
main burner operation. Means shall be provided to prevent the main burner from igniting if the louvers fail
to open during burner start-up and to shut down the main burner if the louvers close during operation.
(Reason: This is the generally accepted practice in the region, consistent with amendment to IFGC.)
—Section 2407.11; change Exception 8 to read as follows:
G2407.11 (304.11) Combustion air ducts. Combustion air ducts shall comply with all of the following:
1. Ducts shall be constructed of galvanized steel complying with Chapter 16 or of a material having
equivalent corrosion resistance, strength and rigidity.
Exception: Within dwellings units, unobstructed stud and joist spaces shall not be prohibited
from conveying combustion air, provided that not more than one required firebbcic is removed.
North Central Texas 14 September 2007
2006 IRC Amendments
2. Ducts shall terminate in an unobstructed space allowing free movement of combustion air to the
appliances.
3. Ducts shall serve a single enclosure.
4. Ducts shall not serve both upper and lower combustion air openings where both such openings
are used. The separation between ducts serving upper and lower combustion air openings shall
be maintained to the source of combustion air.
5. Ducts shall not be screened where terminating in an attic space.
6. Horizontal upper combustion air ducts shall not slope downward toward the source of combustion
air.
7. The remaining space surrounding a chimney liner, gas vent, special gas vent or plastic piping
installed within a masonry, metal or factory -built chimney shall not be used to supply combustion
air.
Exception: Direct -vent gas-fired appliances designed for installation in a solid fuel-buming
fireplace where installed in accordance with the manufacturer's instructions.
8. Combustion air intake openings located on the exterior of a building shall have the lowest side of
such openings located not less than 12 inches (305 mm) vertically from the adjoining grade level
or the manufacturer's recommendation whichever is more strip ent..
(Reason: To recognize the manufacturers installation requirements, consistent with amendment to
IFGC.)
"Section G2408.3; delete.
(Reason: This provision does not reflect standard practice in this area.)
—Section G2408.4; change to read as follows:
G2408.4 Clearances from grade. Equipment and appliances installed at grade level shall be supported
on a level concrete slab or other approved material extending a minimum of 3 inches (76 mm) above
adjoining grade or shall be suspended a minimum of 6 inches (152 mm) above adjoining grade.
(Reason: Consistent with current local practice. Consistent with regional amendments to other codes and
code sections.)
"Section G2412.5; add a second paragraph to read as follows:
"WARNING
1/2 to 5 psi gas Pressure
Do Not Remove"
(Reason: To protect homeowners and plumbers.)
"Section 62413.3; add an exception to read as follows:
Exception: Corrugated stainless steel tubing (CSST) shall be a minimum of 1/2" 08 EDH).
(Reason: Pipe less than 1/2" has a history in this region of causing whistling.)
North Central Texas 15 September 2007
2006 IRC Amendments
'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 12 1$ inches (305 458 mm) below grade, except as provided for in Section G2416.. .
(Reason: To provide increased protection to piping systems.)
"Section G2415.9.1; delete.
(Reason: Individual lines should also be buried to 18 inches.)
-Section G2417.1; 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
G
(Reason: To utilize language used in the IPC regarding who is responsible for testing procedures.)
"Section G2417.4; change to read as follows:
G2417.4 (406.4) Test pressure measurement. Test pressure shall be measured with a monometer 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. Meehan as! gauges used to measure test pressures shall have a FaRgS Such
(Reason: To require the use of more accurate diaphragm gauges. Spring gauges do not provide
accurate measurement below approximately 17 psig.)
**Section G2417.4.1; change to read as follows:
62417.4.1 (406.4.1) Test pressure. The test pressure to be used shall be not less than one and ene-
half times the proposed FAMiRRUM WO!"IdR9 PF866um, but net less than 3 psig (20 kPa gauge), or at the
shall
North Central Texas 16 September 2007
2006 IRC Amendments
(Reason: To provide for lesser pressures to coordinate with the use of more accurate diaphragm gauges.)
"Section 02417.4,2; change to read as follows:
G2417.4.2 (406.4.2) Test duration. The test duration shall be held for a length of time satisfactory to the
Code Official, but in no case for bs net less than 10 -fifteen M 5) minutes. For welded Piping, and for
(Reason: To comply with accepted regional practices.)
""Add Section G2420. 1.4 to read as follows:
(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:
Access to regulators shall comply with the requirements for access to appliances asspecified in
Section M1305.
Exception: A passageway or level services ace is not required when the reaulator 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.)
North Central Texas 17 September 2007
2006 IRC Amendments
-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 % 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 measuring in the direction of airflow.
Exception: 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 manufacturers installation instructions and provided that a 4 inch by 6
Warning: D er must be approved for vent length not to exceed 40 feet Total Developed
Length (TDL).
Duct Size: (Number)
Total Developed Leng6r (Number)
(Reason: To make more consistent with regional practice. Dryer technology has improved to the point
where a large number of makes and models of dryers are capable of handling greater dryer vent length.)
-Section G2445.2; add an exception 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.
(Reason: Gives code official discretion.)
"'Section 62448.1.1; 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.
(Reason: To curtly installation requirements. Also corresponds with amendments regarding water heater
access.)
*'Section P2709.1; add an exception to read as follows;
Exception: Showers designed to comply with ICC*NSI At 17.1.
(Reason: To provide more specific requirements.)
North Central Texas 18 September 2007
2006 IRC Amendments
—Section P2717.3; change to read as follows
P2717.3 Sink, dishwasher and food grinder.
The combined discharge from a sink, dishwasher, and waste grinder is permitted to discharge through a
single 1.5 inch (38 mm) trap. The discharge pipe from the dishwasher shall be increased to a minimum of
0.75 inch (19.1 mm) in diameter and shall connect with a wye fitting between the discharge of the food -
waste grinder and the trap inlet or to the head of the food grinder. The d -NA'AAheF waste line Shall F Re
grinder. Dishwashin ui ment shall discha a to th drains e s stem throw h b an a roved air a
figha.
(Reason: Provide positive backflow protection to the water supply and prevent contamination of the
contents of the dishwasher.)
"`Section P2801.6; add exceptions as follows
Exceptions:
1. Elevation of the ignition source is not reouired for water heaters that are listed as flammable
vapor ignition resistant and for installation without elevation.
2. Electric Water Heater
(Reason: To coordinate with Section 2408.2 of the IRC and to except electric water heaters.)
"Section P2902.5.3; changed to read as follows:
P2902.5.3 Lawn irrigation systems. The potable water supply to lawn irrigation systems shall be
protected against backflow by an atmospheric -type vacuum breaker, a pressure-type vacuum breaker, a
double-check assembly, or a reduced pressure principle backflow, preventer. A valve shall not be installed
downstream from an atmospheric vacuum breaker. Where chemicals are introduced into the system, the
potable water supply shall be protected against backflow, by a reduced pressure principle backflow,
pmventer.
(Reason: To provide clarity.)
-Table P2904.4. 6 P2904.5; delete "Polybutylene (PB) plastic pipe and tubing':
"Sections P2904.5.1 and P29aC 15; delete reference to Polybutylene (PB) plastic pipe and tubing.
(Reason: Polybutylene pipe is not allowed for use in this region.)
"Section P3005.2.6; changed to read as follows:
Base -ef-atasks. Each horizontal drain shall be provided with a cleanout at its
We&
North Central Texas 19 September 2007
2006 IRC Amendments
Exception: Cleanouts may be omitted on a horizontal drain less that five (5) feet (1524 mm) in
length unless such line is serving sinks or urinals.
(Reason: To eliminate the requirement for excessive cleanouts.)
"Section P3111; delete.
(Reason: A combination waste and vent system is not approved for use in residential construction.
"Section P3112.2; delete and replace with the following:
(Reason: To clarity the installation of island venting and to provide a regional guideline on a standard
installation method.)
"Chapters 33 through 42; delete. Replace with the elechfcal code as adopted.
END
North Central Texas 20 September 2007
2006 IRC Amendments
ATTACHMENT B
The schedule of fees for the various permits is as follows:
Total Valuation FeelRate
$23.50
$1.00 to $500.00
47.00 per hour'
501.00 to 2,000.00
23.50 for the first 500.00 plus 3.05 for each additional 100.00, '....
Additional plan review required by changes, additions or revisions to plans
minimum cha e - one-half hour
or fraction thereof, to and including 2,000.00
2,001.00 to 25,000.00
69.25 for the first 2,000.00 plus 14.00 for each additional
1,000.00, or fraction thereof, to and including 25,000.00
25,001.00 to 50,000.00
391.25 for the first 25,000.00 plus 10.10 for each additional ''....
1,000.00, or fraction thereof, to and including 50,000.00 ''....
50,001.00 to 100,000.00
643.75 for the first 50,000.00 plus 7.00 for each additional
1,000.00, or fraction thereof, to and including 100,000.00 '..
100,001.00 to 500,000.00
993.75 for the first 100,000.00 plus 5.60 for each additional ''...
1,000.00, or fraction thereof, to and including 500,000.00 ''...
500,001.00 to 1,000,000.00
3,233.75 for the first 500,000.00 plus 4.75 for each additional
1,000.00, or fraction thereof, to and including 1,000,000.00 '....
1,000,001.00 and up
5,608.75 for the first 1,000,000.00 plus 3.15 for each additional ''....
1,000.00, or fraction thereof '...
Inspections outside of normal business hours, minimum charge - two hours
$47.00 per hour"
Reinspection fees assessed under provisions of section 305.8
47.00 per hour'
Inspections for which no fee is specifically indicated (minimum charge - one-
half hour
47.00 per hour'
Additional plan review required by changes, additions or revisions to plans
minimum cha e - one-half hour
47.00 per hour'
For use of outside consultants for plan checking and Inspections, or both
Actual costs"
*Or the total hourly cost to the jurisdiction, whichever is the greatest. This cost shall
include supervision, overhead, equipment, hourly wages and fringe benefits of the
employees involved.
"Actual costs include administrative and overhead costs.