Current through Vol. 41, No. 13, March 15, 2024
Chapter 11 of the IRC® 2018 is adopted with the following
modifications:
(1) Section N1101.6
Defined terms. This section has been modified to delete the definition of a
"ROOF RECOVER" from the list of defined terms in the chapter. Definitions for
all other terms remain in the section and are applicable to the
chapter.
(2) Section N1101.14
(R401.3) Certificate (Mandatory). This section has been moved to the newly
created Appendix W, entitled "Appendix W, Energy Efficiency" and is not adopted
as a part of the statewide minimum code for residential construction within the
State of Oklahoma. The section has been renumbered in Appendix W to become
W101.1. The section number N1101.14 itself, will stay as part of the code for
numbering alignment but will not have any requirements attached to
it.
(3) Table R1102.1.2 (R402.1.2)
Insulation and Fenestration Requirements by Component. This table has been
modified to change in Climate Zone 3, the Fenestration U-Factor from "0.32" to
"0.38, the Glazed Fenestration SHGC from "0.25" to "0.30", the Ceiling R-value
from "38" to "30" and the Wood Frame Wall R-Value from "R20 or 13 +5" to "R13."
This table has been modified to read: Table R1102.1.2 (R402.1.2) Insulation and
Fenestration Requirements by Component, with a superscript "a" at the end to
indicate footnote "a" is applicable. The table contains 8 rows and 11 columns,
with 9 footnotes at the end and is described below:
(A) Row 1 contains the headers for each of
the columns as listed below:
(i) Row 1,
column 1 heading is entitled "CLIMATE ZONE."
(ii) Row1, column 2 heading is entitled
"FENSTRATION U-FACTOR" and contains a superscript "b" to indicate footnote "b"
is applicable.
(iii) Row 1, column 3
heading is entitled "SKYLIGHT U-FACTOR" with a superscript "b" after the word
"SKYLIGHT" to indicate footnote "b" is applicable.
(iv) Row 1, column 4 heading is entitled
"GLAZED FENSTRATION SHGC" with a superscript "b" and "e" to indicate footnotes
"b" and "e" are applicable.
(v) Row
1, column 5 heading is entitled "CEILING R-VALUE."
(vi) Row 1, column 6 heading is entitled
"WOOD FRAME WALL R-VALUE."
(vii) Row
1, column 7 heading is entitled "MASS WALL R-VALUE" with a superscript "i" to
indicate footnote "i" is applicable.
(viii) Row 1, column 8 heading is entitled
"FLOOR R-VALUE."
(ix) Row 1, column
9 heading is entitled "BASEMENT WALL R-VALUE" with a superscript "c" after the
word "BASEMENT" to indicate footnote "c" is applicable.
(x) Row 1, column 10 heading is entitled
"SLAB R-VALUE AND DEPTH" with a superscript 'd" after the word "SLAB" to
indicate footnote "d" is applicable.
(xi) Row 1, column 11 heading is entitled
"CRAWL SPACE WALL R-VALUE" with a superscript "c" after the word "SPACE" to
indicate footnote "c" is applicable.
(B) Row 2, column 1 contains the number "1."
No changes have been made to this row.
(C) Row 3, column 1 contains the number "2."
No changes have been made to this row.
(D) Row 4 contains the following information:
(i) Row 4, column 1 contains the number
"3."
(ii) Row 4, column 2 has been
modified to change the Fenestration U-Factor requirement to "0.38."
(iii) Row 4, column 3 contains the number
"0.55."
(iv) Row 4, column 4 has
been modified to change the Glazed Fenestration SHGC requirement to "0.30."(v)
Row 4, column 5 has been modified to change the Ceiling R-value requirement to
"30."
(vi) Row 4, column 6 has been
modified to change the Wood frame Wall R-value requirement to "R13" followed by
a superscript "h" after the "13" to indicate footnote "h" is
applicable."
(vii) Row 4, column 7
contains the number "8/13."
(viii)
Row 4, column 8 contains the number "19."
(ix) Row 4, column 9 contains the number
"5/13" followed by a superscript "f" to indicate footnote "f" is
applicable.
(x) Row 4, column 10
contains the number "0."
(xi) Row 4,
column 11 contains the number "5/13."
(E) Row 5, column 1 contains the number and
words "4 except Marine." No changes have been made to this row.
(F) Row 6, column 1 contains the number and
words "5 and Marine 4." No changes have been made to this row.
(G) Row 7, column 1 contains the number "6."
No changes have been made to this row.
(H) Row 8, column 1 contains the numbers and
word "7 and 8." No changes have been made to this row.
(I) After the table the following information
is listed:
(i) For SI" 1 foot - 304.8
mm
(ii) NR equals Not
Required.
(J) The
footnotes at the end of the table state the following:
(i) Footnote "a" reads: "R-values are
minimums. U-factors and SHGC are maximums. Where insulation is installed in a
cavity that is less than the label or design thickness of the insulation, the
installed R-value of the insulation shall not be less than the R- value
specified in the table."
(ii)
Footnote "b" reads: "The fenestration U-factor column excludes skylights. The
SHGC column applies to all glazed fenestration. Exception: In Climate Zones 1
through 3, skylights shall be permitted to be excluded from glazed fenestration
SHGC requirements provided that the SHGC for such skylights does not exceed
0.30."
(iii) Footnote "c" reads: "
'10/13' means R-10 continuous insulation on the interior or exterior of the
home or R-13 cavity insulation on the interior of the basement wall. '15/19'
means R-15 continuous insulation on the interior or exterior of the home or
R-19 cavity insulation on the interior of the basement wall. Alternatively,
compliance with '15/19' shall be R-13 cavity insulation on the interior of the
basement wall plus R-5 continuous insulation on the interior or exterior of the
home."
(iv) Footnote "d" reads:
"R-5 insulation shall be provided under the full slab area of a heated slab in
addition to the required slab edge insulation R-value for slabs, as indicated
in the table. The slab edge insulation for heated slabs shall not be required
to extend below the slab."
(v)
Footnote "e" reads: "There are no SHGC requirements in the Marine
Zone."
(vi) Footnote "f" reads:
"Basement wall insulation shall not be required in warm- humid locations as
defined by Figure N1101.7 and Table 1101.7."
(vii) Footnote "g" reads: "Alternatively,
insulation sufficient to fill the framing cavity providing not less than an
R-value of R-19."
(viii) Footnote
"h" reads: "The first value is cavity insulation, the second value is
continuous insulation. Therefore, as an example, '13 +5' means R-13 cavity
insulation plus R-5 continuous insulation."
(ix) Footnote "i" reads: "Mass walls shall be
in accordance with Section N1102.2.5. The second R-value applies where more
than half of the insulation is on the interior of the mass wall."
(4) Table N1102.1.4
(R402.1.4) Equivalent U-Factors has been modified to change in Climate Zone 3,
the requirements for Fenestration U-factor from "0.32" to "0.36," the Ceiling
U-Factor from "0.030" to "0.035" and the Frame Wall U-Factor from "0.060" to
"0.082." This table has been modified to read: Table R1102.1.4 (R402.1.4)
Equivalent U-Factors with a superscript "a" at the end to indicate footnote "a"
is applicable. The table contains 7 rows and 9 columns with 3 footnotes at the
end and is described below:
(A) Row 1
contains the headers for each of the columns as listed below:
(i) Row 1, column 1 heading is entitled
"CLIMATE ZONE."
(ii) Row1, column 2
heading is entitled "FENSTRATION U-FACTOR."
(iii) Row 1, column 3 heading is entitled
"SKYLIGHT U-FACTOR. "
(iv) Row 1,
column 4 heading is entitled "CEILING U-FACTOR."
(v) Row 1, column 5 heading is entitled
"FRAME WALL U-FACTOR."
(vi) Row 1,
column 6 heading is entitled "MASS WALL U-FACTOR" with a superscript "b" to
indicated footnote "b" is applicable.
(vii) Row 1, column 7 heading is entitled
"FLOOR U-FACTOR."
(viii) Row 1,
column 8 heading is entitled "BASEMENT WALL U-FACTOR."
(ix) Row 1, column 9 heading is entitled
"CRAWL-SPACE WALL U-FACTOR."
(B) Row 2, column 1 contains the number "1."
No changes have been made to this row.
(C) Row 3, column 1 contains the number "2."
No changes have been made to this row.
(D) Row 4 contains the following information:
(i) Row 4, column 1 contains the number
"3."
(ii) Row 4, column 2 has been
modified to change the Fenestration U-Factor requirement to "0.36."
(iii) Row 4, column 3 contains the number
"0.55."
(iv) Row 4, column 4 has
been modified to change the Ceiling U-Factor requirement to "0.035."
(v) Row 4, column 5 has been modified to
change the Frame Wall U-Factor requirement to "0.082."
(vi) Row 4, column 6 contains the number
"0.098."
(vii) Row 4, column 7
contains the number "0.047."
(viii)
Row 4, column 8 contains the number "0.091" with a superscript "c" to indicate
footnote "c" is applicable.
(ix) Row
4, column 9 contains the number "0.136."
(E) Row 5, column 1 contains the number and
wording "4 except Marine." No changes have been made to this row.
(F) Row 6, column 1 contains the number and
wording"5 and Marine 4." No changes have been made to this row.
(G) Row 7, column 1 contains the number "6."
No changes have been made to this row.
(H) Row 8, column 1 contains the number and
wording"7 and 8." No changes have been made to this row.
(I) The footnotes at the end of the table
state the following:
(i) Footnote "a" reads:
"Nonfenestration U-factors shall be obtained from measurement, calculation or
an approved source."
(ii) Footnote
"b" reads: "Mass walls shall be in accordance with Section N1102.2.25. Where
more than half the insulation is on the interior, the mass wall U-factors shall
not exceed 0.17 in Climate Zone 1, 0.14 in Climate Zone 2, 0.12 in Climate Zone
3, 0.087 in Climate Zone 4 except Marine, 0.065 in Climate Zone 5 and Marine 4
and 0.0857 in Climate Zone 6 through 8."
(iii) Footnote "c" reads: "In warm-humid
locations as defined by Figure N1101.7 and Table N1101.7, the basement wall
U-factor shall not exceed 0.360."
(5) Section N1102.2.1 Ceilings with attic
spaces. This section has been modified to add two exceptions to the section
under specific circumstances. This section has been modified to read:
N1102.2.1. Ceilings with attic spaces. Where Section R1102.1.2 requires R-38
insulation in the ceiling, installing R-30 insulation over 100 percent of the
ceiling area requiring insulation shall satisfy the requirement for R-38
insulation wherever the full height of uncompressed R-30 insulation extends
over the wall top plate at the eaves. Where Section N1102.1.2 requires R-49
insulation in the ceiling, installing R-38 insulation over 100 percent of the
ceiling area requiring insulation shall satisfy the requirement for R-49
insulation wherever the full height of uncompressed R-38 insulation extends
over the wall top plate at the eaves. This reduction shall not apply to the
U-factor alternative approach in Section N1102.1.4 and the Total UA alternative
in Section N1102.1.5. Exceptions:
(A) Where
Table 1102.2.1 Requires R-30 insulation in the ceiling and roof/ceiling
assembly does not allow sufficient space for the required insulation,
compressed batts shall be allowed at the perimeter of the building where
insulation extends over top plates.
(B) Where the ceiling is formed by the rafter
in a slope or vaulted ceiling from plate height to ceiling level of 2 feet,
that slope shall be considered an extension of the wall up to 4 feet and be
insulated with R-19.
(6)
Section N1102.2.10 Slab-on-grade floors. This section has been modified to add
an exception to the section under certain circumstances. This section has been
modified to read: N1102.2.10 Slab-on-grade floors. Slab-on-grade floors with a
floor surface less than 12 inches (305 mm) below grade shall be insulated in
accordance with Table N1102.1.2. The insulation shall extend downward from the
top of the slab on the outside or inside of the foundation wall. Insulation
located below grade shall be extended the distance provided in Table N1102.1.2
by any combination of vertical insulating, insulation extending under the slab
or insulation extending out from the building. Insulation extending away from
the building shall be protected by pavement or by not less than 10 inches (254
mm) of soil. The top edge of the insulation installed between the exterior wall
and the edge of the interior slab shall be permitted to be cut a 45-degree
(0.79 rad) angle away from the exterior wall. Slab- edge insulation is not
required in jurisdiction designated by the building official as having a very
heavy termite infestation. Exception: If foundation/slab insulation is used in
vertical application on inside of stem wall and a slab ledge exists, 1/2-inch
insulation in vertical position is allowed as a thermal break between slab edge
and foundation wall so that slab can still bear on the horizontal
ledge.
(7) Table N1102.4.1.1
(R402.4.1.1) Air Barrier and Insulation Installation. This table has been
modified to change the insulation installation criteria for walls under certain
circumstances and the air barrier criteria and insulation installation criteria
for electrical and communication boxes. This table has been modified to read:
Table N1102.4.1.1 (R402.4.1.1) Air Barrier and Insulation Installation with a
superscript "a" to indicate footnote "a" is applicable. The table has three
columns and 17 rows and is described below:
(A) Row 1 contains the headers for each of
the columns as listed below:
(i) Row 1,
column 1 heading is entitled "COMPONENT."
(ii) Row 1, column 2 heading is entitled "AIR
BARRIER CRITERIA."
(iii) Row 1,
column 3 heading is entitled "INSULATION INSTALLATION CRITERIA."
(B) Row 2, column 1 contains the
wording "General requirements." No changes were made to any of the columns in
this row.
(C) Row 3, column 1
contains the wording "Ceiling/attic." No changes were made to any of the
columns in this row.
(D) Row 4 has
been modified and contains the following information:
(i) Row 4, column 1 has not been modified and
contains the wording "Walls."
(ii)
Row 4, column 2 has not been modified and contains the wording " The junction
of the foundation and sill plate shall be sealed. The junction of the top plate
and the top exterior walls shall be sealed. Knee walls shall be
sealed."
(iii) Row 4, column 3 has
been modified to read: "Cavities within corners and headers (in a 2 x 6 wall
system or greater) of frame walls shall be insulated by completely filling the
cavity with a material having a thermal resistance of not less than R-3 per
inch. If used on wall systems, exterior thermal envelope insulation for framed
walls shall be installed in substantial contact and in continuous alignment
with the air barrier."
(E) Row 5, column 1 contains the wording
"Windows, skylights, and doors." No changes were made to any of the columns in
this row.
(F) Row 6, column 1
contains the wording "Rim joists." No changes were made to any of the columns
in this row.
(G) Row 7, column 1
contains the wording "Floors including cantilevered floors and floors above
grades." No changes were made to any of the columns in this row.
(H) Row 8, column 1 contains the wording
"Crawl space walls." No changes were made to any of the columns in this
row.
(I) Row 9, column 1 contains
the wording "Shafts, penetrations." No changes were made to any of the columns
in this row.
(J) Row 10, column 1
contains the wording "Narrow cavities." No changes were made to any of the
columns in this row.
(K) Row 11,
column 1 contains the wording "Garage separation." No changes were made to any
of the columns in this row.
(L) Row
12, column 1 contains the wording "Recessed lighting." No changes were made to
any of the columns in this row.
(M)
Row 13, column 1 contains the wording "Plumbing and wiring." No changes were
made to any of the columns in this row.
(N) Row 14, column 1 contains the wording
"Shower/tub on exterior wall." No changes were made to any of the columns in
this row.
(O) Row 15 has been
modified and contains the following information:
(i) Row 15, column 1 has been modified to
change the heading from "Electrical/phone box on exterior walls" to "Electrical
and communication outlet boxes."
(ii) Row 15, column 2 has been modified to
read: "The air barrier extends behind the building thermal envelope. Boxes that
penetrate the building thermal envelope shall be air sealed to the subfloor,
wall covering, or ceiling penetrated by the box or air- sealed boxes shall be
installed."
(iii) Row 15, column 3
has been modified to read "Spaces behind boxes penetrating the thermal envelope
shall have insulation cut or blow to fit or that readily conforms to the space
around the box."
(P) Row
16, column 1 contains the wording "HVAC register boots." No changes have been
made to any of the columns in this row.
(Q) Row 17, column 1 contains the wording
"Concealed sprinklers." No changes have been made to any of the columns in this
row.
(R) Footnote "a" reads:
"Inspection of log walls shall be in accordance with the provisions of ICC
400."
(8) Section
N1102.4.1.2 Testing. This section has been modified to provide an exception to
the section for visual testing, modify the air changes per hour in Climate Zone
3 and clarify when the section is required. This section has been modified to
read: N1102.4.1.2 (R402.4.1.2) Testing.
(A)
The building or dwelling unit may be tested and verified as having an air
leakage rate of not exceeding five air changes per hour in Climate Zones 1, 2,
and 3, and three air changes per hour in Climate Zones 4 through 8. Testing, if
preformed shall be in accordance with RESNET/ICC 380, ASTM E779 or ASTM E1827
and reported at a pressure of 0.2 inch w.g. (50 Pascals). Where required by the
building official, testing shall be conducted by an approved third party. A
written report of the test shall be signed by the party conducting the test and
provided to the building official, if requested. Testing shall be performed at
any time after creation of all penetrations of the building thermal envelope.
During testing:
(i) Item 1. Exterior windows
and doors, fireplace, and stove doors shall be closed, but not sealed beyond
the intended weatherstripping or other infiltration measures.
(ii) Item 2. Dampers including exhaust,
intake, makeup air, backdraft and flue dampers shall be closed, but not sealed
beyond intended infiltration control measures.
(iii) Item 3. Interior doors, where installed
at the time of the test shall be open.
(iv) Item 4. Exterior or interior
terminations for continuous ventilation systems shall be sealed.
(v) Item 5. Heating and cooling systems,
where installed at the time of the test, shall be turned off.
(vi) Item 6. Supply and return registers,
where installed at the time of the test, shall be fully open.
(B) Exception: Visual testing of
air barrier shall be allowed to assure leakage rate above or the Air Barrier
and Insulation Checklist Table N1102.4.1.1 (R402.4.1.1) by a local
jurisdictional inspection services or by approved third
party.
(9) Section
N1102.4.6 (R402.4.6) Air-sealed electrical and communication outlet boxes. This
section has been added to require air-sealed electrical and communication
outlet boxes as permitted by Table N1102.4.1.1, that penetrate the building
thermal envelope to be sealed, and require boxes that are air-sealed to be
tested in accordance with NEMA OS 4 and have an air leakage rate not greater
than 2.0 cfm at a pressure differential of 1.57 psf and requires those boxes
meeting NEMA OS 4 to marked with "NEMA OS 4" or "OS 4" and requires them to be
installed in accordance with the manufacturer's instructions and with any
supplied components required to achieve compliance with NEMA OS 4. This section
has been added to read: N1102.4.6 (R406.2.4.6) Air-sealed electrical and
communication outlet boxes. Where selected for installation as permitted by
Table N1102.4.1.1, air-sealed electrical and communication outlet boxes that
penetrate the building thermal envelope shall be sealed to limit air leakage
between conditioned and unconditioned spaces. Air-sealed electrical and
communication outlet boxes shall be tested in accordance with NEMA OS 4.
Requirement for Air-sealed Boxes for Electrical and Communication Applications
and shall have an air leakage rate of not greater than 2.0 cfm (0.944 L/s) at a
pressure differential of 1.57 psf (75 Pa). Electrical and communication outlet
boxes shall be installed per the manufacturer's instructions and with any
supplied components required to achieve compliance with NEMA OS 4.
(10) Section N1103.3.2 (R403.3.2) Sealing
(Mandatory). This section has been modified to add plenums and start collar
connections to plenum to the items that shall be sealed and require duct
systems with sheet metal plenums, Y's, and supply boots to be sealed by liquid
applied sealants only that comply with 181 BM (Mastic or similar) to be used to
seal inner liners and start collars to plenum and for any other seams in the
system. This section has been modified to read: N1103.3.2 (R403.3.2) Sealing
(Mandatory). Ducts, air handler, plenums, start collar connections to plenum
and filter boxes shall be sealed. Joints and seams shall comply with Section
M1601.4.1. For duct systems with sheet metal Plenums, Y's and supply boots,
only liquid applied sealants complying with 181 BM (Mastic or similar) shall be
used to seal inner liners and start collars to plenum and any other seams in
system.
(11) Section N1103.3.3
(R403.3.3) Duct testing. This section has been modified to specify the section
is not mandatory and add a third exception for visual testing. This section has
been modified to read: N1103.3.3 (R043.3.3) Duct testing.
(A) Ducts shall be pressure tested to
determine air leakage by one of the following methods:
(i) Item 1: Rough-in-test: Total leakage
shall be measured with a pressure differential of 0.1 inch w.g. (25 Pa) across
the system, including the manufacturer's air handler enclosure if installed at
the time of the test. Registers shall be taped or otherwise sealed during the
test.
(ii) Item 2: Post
construction test: Total leakage shall be measured with a pressure differential
of 0.1 inch w.g. (25 Pa) across the entire system, including manufacturer's air
handler enclosure. Registers shall be taped or otherwise sealed during the
test.
(B) Exceptions:
(i) Exception 1: A duct air-leakage test
shall not be required where the ducts and air handlers are located entirely
within the building thermal envelope.
(ii) Exception 2: A duct air-leakage test
shall not be required for ducts serving heat or energy recovery ventilators
that are not integrated with ducts serving heating or cooling
systems.
(iii) Exception 3: Visual
verification by Authority having Jurisdiction, approved agency or licensed
inspector.
(C) A written
report of the results of the test shall be signed by the party conducting the
test and provided to the building official.
(12) Section N1103.4 Mechanical system piping
insulation (Mandatory). This section has been modified to change the
temperature the mechanical piping systems are required to carry fluids at and
to add language specifying that the piping shall be insulated to a specific R-
value or to the manufacture's installation instructions, whichever is more
stringent. This section has been modified to read: N1103.4 Mechanical system
piping insulation (Mandatory). Mechanical system piping capable of carrying
fluids greater than 120 degrees Fahrenheit (49 degrees Celsius) or less than 55
degrees Fahrenheit (13 degrees Celsius) shall be insulated to an R-value of not
less than R-3 or to the manufacturer's installation instructions, whichever is
more stringent.
(13) Section
N1103.5.3 (R403.5.3) Hot water pipe insulation (Prescriptive). This section has
been modified to delete two of the items where insulation of the hot water pipe
is required. This section has been modified to read: N1103.5.3 (R403.5.3) Hot
water pipe insulation (Prescriptive). Insulation for hot water piping with a
thermal resistance R-value of not less than R-3 shall be applied to the
following:
(A) Item 1. Piping 1 inch (25 mm)
and larger in nominal diameter.
(B)
Item 2. Piping serving more than one dwelling unit.
(C) Item 3. Piping located outside the
conditioned space.
(D) Item 4. This
item has been stricken from the code.
(E) Item 5. This item has been stricken from
the code.
(F) Item 6. Buried
piping
(G) Item 7. Supply and
return piping in recirculation systems other than demand recirculation
systems.
(14) N1103.7
(R403.7) Equipment sizing and efficiency rating (Mandatory) This section has
been modified to add a requirement for all new residential one- and two-family
dwellings and townhouses to provide documentation showing compliance with this
section to the authority having jurisdiction at the time a mechanical permit is
required. This section has been modified to read: N1103.7 (R403.7) Equipment
sizing and efficiency rating (Mandatory). Heating and cooling equipment shall
be sized in accordance with ACCA Manual S based on building loads calculated in
accordance with ACCA Manual J or other approved heating and cooling calculation
methodologies. New or replacement heating and cooling equipment shall have an
efficiency rating equal to or greater than the minimum required by federal law
for geographic location where the equipment is installed. Documentation
demonstrating compliance with this section is to be provided to the authority
having jurisdiction at the time a Mechanical Permit is requested on new one-
and two-family dwellings and townhouses.
(15) Section N1105.4.2 Compliance report.
This section has been modified to specify compliance is required only when the
proposed design of a building will be built on different sites where the
cardinal origination of the building on each site is different. This section
has been modified to read: Section N1105.4.2 (R405.4.2) Compliance report.
(A) Compliance software tools shall generate
a report that documents that the proposed design complies with Section N1105.3.
A compliance report on the proposed design shall be submitted with the
application for the building permit. Upon completion of the building, a
compliance report based on the as-built condition of the building shall be
submitted to the building official before a certificate of occupancy is issued.
Batch sampling of buildings to determine energy code compliance shall only be
allowed for stacked multiple-family units.
(B) Compliance shall include information in
accordance with Sections N1105.4.2.1 and N1105.4.2.2 When the proposed design
of a building will be built on different sites where the cardinal orientation
of the building on each site is different, compliance of the proposed design
for the purposes of the application for the building permit shall be based on
the worst-case orientation, worst-case configuration, worst-case building air
leakage and worst-case duct leakage. Such worst-case parameters shall be used
as inputs to the compliance software energy analysis.
(16) Table N1106.4 (R406.4) Maximum Energy
Rating Index. This table has been modified to change the Energy Rating Index in
Climate Zone 3 from "57" to "64." The table has two columns and 9 rows with one
footnote and is described below:
(A) Row 1: Is
the header row and is described below:
(i) Row
1, column 1 header is entitled "Climate Zone."
(ii) Row 1, column 2 header is entitled
"Energy Rating Index" with a superscript "a" to indicate footnote "a" is
applicable.
(B) Row 2,
column 1, contains the number "1." No changes have been made to this
row.
(C) Row 3, column 1, contains
the number "2." No changes have been made to this row.
(D) Row 4 has been modified and is described
below:
(i) Row 4, column 1, contains the
number "3."
(ii) Row 4, column 2,
contains the number "64."
(E) Row 5, column 1, contains the number "4."
No changes have been made to this row.
(F) Row 6, column 1, contains the number "5."
No changes have been made to this row.
(G) Row 7, column 1, contains the number "6."
No changes have been made to this row.
(H) Row 8, column 1, contains the number "7."
No changes have been made to this row.
(I) Row 9, column 1, contains the number "8."
No changes have been made to this row.
(J) Footnote "a" reads: "Where on-site
renewable energy is included for compliance using the ERI analysis of section
N1106.4, the building shall meet the mandatory requirements of Section N1106.2,
and the building thermal envelope shall be greater than or equal to the levels
of efficiency and SHGC in Table N1102.1.2 or Table N1102.1.4 of the 2015
International Residential Code®."
