GroundRules
N.Y.C. Admin. Code § 28-1001.2.2: § 28-1001.2.2 New York city amendments to the New York State-specific version of ASHRAE 90.1.
Where this section sits in the code
- New York City Administrative Code
- Title 28
- Chapter 10: New York City Energy Code
2025 NYC ASHRAE 90.1
Section 3.1.1 Occupancy.
Section 3.1.1 – Add new Section 3.1.1 to read as follows:
3.1.1 Occupancy. Occupancy classification and use shall be determined by Chapter 3 of the New York City Building Code.
Section 3.2 Definitions.
Section 3.2 – Delete the definition of “authority having jurisdiction” after the definition of “attic and other roofs.”
Section 3.2 – Add the definition of “authority having jurisdiction,” after the definition of “attic and other roofs,” to read as follows:
authority having jurisdiction: the commissioner or the commissioner's designee.
Section 3.2 – Add the definition of “clear-field U-factor,” after the definition of “clear-field thermal bridge,” to read as follows:
clear-field U-factor. thermal performance factor that accounts for clear-field thermal bridges.
Section 3.2 – Add the definition of “demand responsive control,” and “ demand response signal,” after the definition of “demand control ventilation (DCV),” to read as follows:
demand responsive control: a control capable of receiving and automatically responding to a demand response signal.
demand response signal: a signal that indicates a price or a request to modify electricity consumption for a limited time period.
Section 3.2 – Delete the definition of “labeled” after the definition of “kilowatt (kW).”
Section 3.2 – Add the definition of “labeled,” after the definition of “kilowatt (kW),” to read as follows:
labeled: see Section 28-101.5 of the Administrative Code.
Section 3.2 – Add the definition of “pre-engineered metal building,” after the definition of “primary sidelighted area,” to read as follows:
pre-engineered metal building: a pre-engineered metal building (PEMB) is a structure where the steel components—primary framing, secondary framing, and cladding—are designed and manufactured in a factory according to specific project requirements and then shipped to the construction site for assembly.
Section 3.2 – Add the definition of “spandrel panel,” after the definition of “space conditioning category,” to read as follows:
spandrel panel: an opaque assembly within a fenestration framing system in a wall that is part of the building thermal envelope. Such panels are considered to be a portion of the opaque thermal envelope assembly.
Section 4 Administration and Enforcement.
Section 4.2.1.1 New Buildings.
Section 4.2.1.1 – Delete Section 4.2.1.1 in its entirety and replace with a new Section 4.2.1.1 to read as follows:
4.2.1.1
New Buildings. New buildings shall comply with Sections 4.2.2 through 4.2.5 and the provisions of:
a.
Sections 5, “Building Envelope”; 6, “Heating, Ventilating, and Air Conditioning”; 7, “Service Water Heating”; 8, “Power”; 9, “Lighting”; 10, “Other Equipment,” and 11, “Additional Efficiency Requirements;
b. Section 12, “Energy Cost Budget Method”; or
c. Normative Appendix G, “Performance Rating
Method.”
When using Normative Appendix G, new
buildings, additions to existing buildings, and/or alterations
shall comply with Section 4.2.1.1.1 and Section 4.2.1.1.2. Alterations to existing buildings shall comply with Section 4.2.1.1.1.
Section 5 Building Envelope.
Section 5.4.3.1.1.
Section 5.4.3.1.2 – Delete Section 5.4.3.1.1 in its entirety and replace with a new Section 5.4.3.1.1 to read as follows:
5.4.3.1.1. New buildings shall comply with measured air leakage requirements in Section 5.4.3.1.4 and continuous air barrier design and installation verification program performed in accordance with Section 5.9.1.2.
Section 5.4.3.1.2.
Section 5.4.3.1.2 – Delete Section 5.4.3.1.2 in its entirety and replace with a new Section 5.4.3.1.2 to read as follows:
5.4.3.1.2. Reserved
Section 5.4.3.1.4 Measured Air Leakage.
Section 5.4.3.1.4 – Delete Section 5.4.3.1.4 in its entirety and replace with a new Section 5.4.3.1.4 to read as follows:
5.4.3.1.4 Measured Air Leakage. Where measured air leakage is used for compliance, the rate of air leakage of the building envelope shall not exceed 0.35 cfm/ft
2
(1 L/s/m
2
) under a pressure differential of 75 Pa (0.30 in. of water), with this air leakage rate normalized by the sum of the above-grade and below-grade building envelope areas of the conditioned space and semiheated space and in accordance with this section.
a. Whole-building pressurization testing shall be conducted in accordance with ASTM E3158, ASTM E779, or ASTM E1827. Air leakage shall be measured following a multi-point regression method and then averaged from depressurization and pressurization tests.
For buildings greater than 50 000 square feet (4645.2 m
2
), portions of the building shall be permitted to be tested following the procedures for a guarded test in ASTM E3158, and the measured air leakage shall be area-weighted by the surface areas of the building thermal envelope in each portion. The weighted average tested air leakage shall not be greater than the whole building leakage limit. The following portions of the building shall be tested:
1.1 The entire building thermal envelope area of stories that have any conditioned spaces directly under a roof.
1.2 The entire building thermal envelope area of stories that have a building entrance, have a floor over unconditioned space, have a loading dock, or are below grade.
1.3 Representative above-grade portions of the building totaling not less than 25 percent of the wall area enclosing the remaining conditioned space.
Exception to 5.4.3.1.4(a): Hospitals, museums and other occupancies approved by the commissioner may be permitted to only perform pressurization test to comply with the requirements of this section.
b. Where a building contains both conditioned space and semiheated space, compliance shall be shown using one of the following, as applicable:
1. Separately for the conditioned space and for the semiheated space, with the air leakage rate for the conditioned space normalized by the exterior building envelope area of the conditioned space and the air leakage rate for the semiheated space normalized by the semiexterior building envelope area of the semiheated space.
2. For the conditioned space and for the semiheated space together, with the air leakage rate for the overall space normalized by the sum of the exterior building envelope area and the semiexterior building envelope area minus the semiexterior building envelope area that separates the conditioned space from the semiheated space.
c. Reporting shall be in compliance with Section 4.2.5.1.2.
Section 5.5.3 Opaque Elements.
Section 5.5.3 – Delete Section 5.5.3 in its entirety and replace with a new Section 5.5.3 to read as follows:
5.5.3
Opaque Elements. For all opaque elements, compliance with Tables 5.5-4 and 5.5-5 for each class of construction as described in Normative Appendix A, Sections A2 through A8, shall be demonstrated by 1 of the following 2 methods:
a. Providing a minimum rated R-value of insulation added to the assembly equal to or greater than the insulation minimum R-value required of each insulation component.
b. Providing insulation such that the maximum
U-factor,
C-factor, or
F-factor
for the entire assembly is not exceeded, as determined by 1 of the following:
1. Precalculated values in accordance with Normative Appendix A, Section A1.1.
2. Applicant-determined values in accordance with Normative Appendix A, Section A1.2, where such values are approved by the building official.
Exceptions to 5.5.3:
1.
For opaque assemblies not complying with the classes of construction as described in Normative Appendix A, Sections A2 through A8, compliance with the maximum U-factors for the “attic and other” or “wood frame and other” opaque element conditions in Tables 5.5-4 and Table 5.5-5 shall be demonstrated by testing or calculations in accordance with Normative Appendix A, Section A9.1, where approved by the building official.
2.
For multiple assemblies within a single
class
of
construction
for a single
space
conditioning category, compliance shall be shown for either (a) the most restrictive requirement or (b) an area-weighted average U-factor, C-factor, or
F-factor.
3. When the total area of penetrations from through-the-wall equipment or equipment listed in Table 6.8.1-4 exceeds 1 percent of the opaque above-grade wall area, the mechanical equipment penetration area shall be calculated as a separate wall assembly with a default U-factor of 0.5, and compliance shall be shown with method b of this section. Where mechanical equipment has been tested in accordance with testing standards, and approved by the authority having jurisdiction, the mechanical equipment penetration area may be calculated as a separate wall assembly with the U-factor as determined by such test.
4. For opaque assemblies in curtain wall framing or other fenestration framing systems, compliance shall be shown using the effective U-factor values of Table 5.5.3.
Table 5.5.3 Effective U-factors for Spandrel Panels and Glass Curtain Walls
a
Table 5.5.3 – Add a new Table 5.5.3 to read as follows:
Table 5.5.3 Effective U-factors for Spandrel Panels and Glass Curtain Walls
a
RATED
R
-VALUE OF INSULATION BETWEEN FRAMING MEMBERS
None
R-4
R-7
R-10
R-15
R-20
R-25
R-30
Frame Type
Spandrel Panel
Default
U
-factor
Aluminum without thermal break
b
Single glass pane, stone, or metal panel
U-0.445
U-0.285
U-0.259
U-0.247
U-0.236
U-0.230
U-0.226
U-0.224
Double glazing with no low-e coatings
U-0.356
U-0.273
U-0.254
U-0.244
U-0.234
U-0.229
U-0.226
U-0.223
Triple glazing or double glazing with low-e glass
U-0.313
U-0.263
U-0.249
U-0.241
U-0.233
U-0.228
U-0.225
U-0.223
Aluminum with thermal break
c
Single glass pane, stone, or metal panel
U-0.429
U-0.243
U-0.212
U-0.197
U-0.184
U-0.176
U-0.172
U-0.169
Double glazing with no low-e coatings
U-0.328
U-0.228
U-0.205
U-0.193
U-0.182
U-0.175
U-0.171
U-0.168
Triple glazing or double glazing with low-e glass
U-0.277
U-0.217
U-0.199
U-0.189
U-0.180
U-0.174
U-0.170
U-0.167
Structural glazing
d
Single glass pane, stone, or metal panel
U-0.428
U-0.217
U-0.180
U-0.161
U-0.145
U-0.136
U-0.130
U-0.126
Double glazing with no low-e coatings
U-0.316
U-0.199
U-0.172
U-0.157
U-0.143
U-0.135
U-0.129
U-0.126
Triple glazing or double glazing with low-e glass
U-0.257
U-0.186
U-0.165
U-0.152
U-0.140
U-0.133
U-0.128
U-0.125
No framing or insulation is continuous
e
Single glass pane, stone, or metal panel
U-0.445
U-0.160
U-0.108
U-0.082
U-0.058
U-0.045
U-0.037
U-0.031
Double glazing with no low-e coatings
U-0.356
U-0.147
U-0.102
U-0.078
U-0.056
U-0.044
U-0.036
U-0.030
Triple glazing or double glazing with low-e glass
U-0.313
U-0.139
U-0.098
U-0.076
U-0.055
U-0.043
U-0.035
U-0.030
a. Extrapolation outside of the table and interpolation between values in the table shall not be permitted. Assemblies with distance between framing less than 30 inches (762 mm), or not included in the default table, shall have a U-factor determined by testing in compliance with ASTM C1363 or modeling in compliance with ANSI/NFRC 100. Spandrel panel assemblies in the table do not include metal backpans. For designs with metal backpans, multiply the U-factor by 1.20. U-factors for spandrel panels include a three-quarters inch (19.1 mm) air gap and five-eighths inch (15.9 mm) gypsum board with
R
-value of 0.56 for the interior finish. The gypsum board is assumed to span between the window sill and a channel at the floor.
b. This frame type shall be used for systems that do not contain a non-metallic element that separates the metal exposed to the exterior from the metal that is exposed to the interior condition.
c. This frame type shall be used for systems where a urethane or other non-metallic element separates the metal exposed to the exterior from the metal that is exposed to the interior condition.
d. This frame type shall be used for systems that have no exposed mullion on the interior exterior.
e. This frame type shall be used for systems where there is no framing, or where the insulation is continuous across and uninterrupted by the framing (also known as mullion wrap).
Table 5.5-4 Building Envelope Requirements for Climate Zone 4 (A,B,C) *
Table 5.5-4 – Revise Table 5.5-4 to read as follows:
Table 5.5-4 Building Envelope Requirements for Climate Zone 4 (A,B,C)*
Nonresidential
Residential
Semiheated
Opaque Elements
Assembly Maximum
Insulation Min. R-Value
Assembly Maximum
Insulation Min. R-Value
Assembly Maximum
Insulation Min. R-Value
Roofs
Insulation entirely above deck
U-0.030
R-33
c.i
U-0.030
R-33
c.i.
U-0.093
R-10 c.i.
Pre-Engineered Metal
building
a
U-0.035
R-19 + R-11
Ls
or or R-25 + R-8
Ls
U-0.035
R-19 + R-11
Ls or
R-25 + R-8 Ls
U-0.082
R-19
Attic and other
U-0.020
R-53ca
U-0.020
R-53ca
U-0.034
R-30
Walls, above Grade
Mass
U-0.099
R-11.2 c.
i
U-0.086
R-13.25
c.i.
U-0.580
NR
Pre-Engineered Metal building
U-0.048
R-13ca + R-14.9
c.i.
U-0.048
R-13ca + R-14.9 c.i.
U-0.162
R-13
Steel-framed
U-0.061
R-13ca + R-8.5 c.i.
U-0.061
R-13ca + R-8.5 c.i
U-0.124
R-13
Wood-framed and other
U-0.061
R-13ca + R-4.5 c.
i.
or R-19ca+R-1.5ci
U-0.061
R-13ca + R-4.5 c.
i.
or R-19ca+R-1.5ci
U-0.089
R-13
Wall, below Grade
Below-grade wall
C-0.119
R-7.5 c.
i.
C-0.092
R-10
c.i.
C-1.140
NR
Floors
Mass
U-0.057
R-14.6 c.i.
U-0.051
R-16.7
c.i.
U-0.107
R-6.3 c.i.
Steel joist
U-0.033
R-38ca
U-0.033
R-38ca
U-0.052
R-19
Wood-framed and other
U-0.033
R-30ca
U-0.033
R-30ca
U-0.051
R-19
Slab-on-Grade Floors
Unheated
F-0.520
R-15 for 24 in.
F-0.520
R-15 for 24 in.
F-0.730
NR
Heated
F-0.843
R-20 for 48 in. +%-5 full slab
F-0.63
R-20 for 48 in.+R-5 full slab
F-0.900
R-10 for 24 in.
Opaque Doors
Swinging
U-0.370
U-0.370
U-0.370
Nonswinging
U-0.310
U-0.310
U-0.360
Fenestration
Assembly Max. U
Assembly Max. SHGC
Assembly Min. VT/SHGC
Assembly Max. U
Assembly Max. SHGC
Assembly Min. VT/SHGC
Assembly Max. U
Assembly Max. SHGC
Assembly Min. VT/SHGC
Vertical Fenestration, 0% to 40% of Wall
Nonmetal framing, all
0.28
0.36
1.10 (for all types)
0.28
0.36
1.10 (for all types)
0.50
NR (for all types)
NR (for all types)
Metal framing, fixed, below 95 ft
c
0.30
0.36
0.30
0.36
0.50
Metal framing, fixed, above 95 ft
c
0.36
0.36
0.36
0.36
0.50
Metal framing, operable, below 95 ft
c
0.40
0.33
0.40
0.33
0.65
Metal framing, operable, above 95 ft
c
0.42
0.33
0.42
0.33
0.65
Entrance door
0.63
0.33
0.63
0.33
0.77
Skylight, 0% to 3% of Roof
All types
0.48
0.38
NR
0.48
0.38
NR
0.75
NR
NR
* The following definitions apply: c.i. = continuous insulation (see Section 3.2), ca= cavity insulation, FC = filled cavity (see Section A2.3.2.5), Ls = liner system (see Section A2.3.2.4); NR = no (insulation)requirement.
a. When using the
R
-value compliance method for metal building roofs, a thermal spacer block is required (see Section A2.3.2).
b. Exception to Section 5.5.3.2 applies for
mass walls
above
grade
.
c. Where any portion of the fenestration frame is installed at or above 95 feet (29 m) above grade, the unit may meet the requirements for above 95 feet (29 m).
Section 5.5.4.2.1 Vertical Fenestration Area.
Section 5.5.4.2.1 – Revise Section 5.5.4.2.1 to read as follows:
5.5.4.2.1 Vertical Fenestration Area. The total vertical fenestration area shall not be greater than that specified in Table 5.5-4.
Exception to 5.5.4.2.1: Vertical fenestration complying with Section 5.5.4.4.1, Exception 3.
Section 5.5.4.2.2 Maximum Skylight Fenestration Area.
Section 5.5.4.2.2 – Revise Section 5.5.4.2.2 to read as follows:
5.5.4.2.2 Maximum Skylight Fenestration Area. The total skylight area shall not be greater than that specified in Tables 5.5-4.
Exception to 5.5.4.2.2: The total skylight area is permitted to be increased to no greater than 6 percent of the gross roof area, provided the skylights meet all of the criteria in Section 5.5.4.4.2, Exception 1, and the total daylight area under skylights is a minimum of half the floor area of the space.
Section 5.5.4.3 Fenestration U-Factor.
Section 5.5.4.3 – Revise Section 5.5.4.3 to read as follows:
5.5.4.3 Fenestration U-Factor: Fenestration shall have a U-factor not greater than that specified in Tables 5.5-4.
Exception to 5.5.4.3: The U-factor for skylights is permitted to be increased to no greater than 0.90 Btu/h·ft
2
·°F in Climate Zones 0 through 3 and 0.75 Btu/h·ft
2
·°F in Climate Zones 4 through 8, provided the skylights meet all of the criteria in Section 5.5.4.4.2, Exception 1.
Section 5.5.4.4.1 SHGC of Vertical Fenestration.
Section 5.5.4.4.1 – Revise the first sentence of Section 5.5.4.4.1 to read as follows:
Vertical fenestration shall have an SHGC not greater than that specified in Table 5.5-4.
Section 5.5.4.4.2 SHGC of Skylights.
Section 5.5.4.4.2 – Revise the first sentence of Section 5.5.4.4.1 to read as follows:
Skylights shall have an SHGC not greater than that specified in Table 5.5-4.
Section 5.5.4.5 Fenestration Orientation.
Section 5.5.4.5 – Revise Section 5.5.4.5 to read as follows:
5.5.4.5 Fenestration Orientation. The vertical fenestration shall comply with either (a) or (b):
a.
For Climate Zones 0 through 8,
A
W
= (A
T
)/4 and A
E
= (A
T
)/4
b.
For Climate Zones 0 through 3,
A
W
× SHGC
W
= (A
T
× SHGC
C
)/4 and
A
E
× SHGC
E
= (A
T
× SHGC
C
)/4
For Climate Zones 4 through 8,
A
W
× SHGC
W
= (A
T
× SHGC
C
)/5 and
A
E
× SHGC
E
= (A
T
× SHGC
C
)/5
where
A
W
= west-oriented
vertical
fenestration
area
A
E
= east-oriented vertical fenestration area
A
T
= total vertical fenestration
area
SHGC
C
= SHGC criteria in Tables 5.5-4 for each climate zone
SHGC
E
= SHGC for east-oriented fenestration that complies with Section 5.5.4.4.1
SHGC
W
= SHGC for west-oriented fenestration that complies with Section 5.5.4.4.1
Exceptions to Section 5.5.4.5:
1.
Vertical fenestration that complies with Section 5.5.4.4.1, Exception (3).
2.
Buildings
with shade on 75% of the east- and west-oriented
vertical
fenestration
areas from permanent projections, existing buildings, existing permanent infrastructure, or topography at 9 a.m. and 3 p.m., respectively, on the summer solstice (June 21 in the north- ern hemisphere).
3.
Alterations and additions with no increase in vertical fenestration
area.
4.
Buildings
where the west-oriented and east-oriented
vertical
fenestration
area
(as defined in Section 5.5.4.5) does not exceed 20% of the gross wall area for each of those façades, and SHGC
on those facades is no greater than 90% of the criteria in Table 5.5-4.
5.
Buildings in Climate Zone 8.
Section 5.5.4.6 Visible Transmittance/SHGC Ratio.
Section 5.5.4.6 – Revise the first sentence of Section 5.5.4.6 to read as follows:
Where automatic daylighting controls are required in accordance with Section 9.4.1.1(e) or (f), fenestration shall have a ratio of VT divided by SHGC not less than that specified in Table 5.5-4 for the appropriate fenestration area.
Section 5.5.5 Linear Thermal Bridges and Point Thermal Bridges.
Section 5.5.5 – Revise Section 5.5.5 to read as follows:
5.5.5 Linear Thermal Bridges and Point Thermal Bridges. Where linear thermal bridges and point thermal bridges occur as described in Sections 5.5.5.1 through 5.5.5.5, they shall:
a. Comply with the applicable requirements of Sections 5.5.5.1 through 5.5.5.5; or
b. Not exceed the mitigated psi-factors and chi-factors in Table A10.1, where the psi-factors and chi-factors for the thermal bridges are determined in accordance with Normative Appendix A, Section A10.
For the purposes of Section 5.5.5, linear elements that are connected to the building structure by a series of point connections shall be permitted to be characterized as linear thermal bridges or as individual point thermal bridges.
Exceptions to 5.5.5:
1. Reserved
2. Semiheated spaces.
3. Clear-field thermal bridges.
4. Thermal bridges in uninsulated assemblies.
5. Linear and point thermal bridges that have a material thermal conductivity less than 3.0 Btu·in/h·ft
2
·°F.
6. Alterations to existing buildings other than additions.
7. Roofs that project over exterior walls.
Informative Note: For linear thermal bridges and point thermal bridges that fall under the provisions of Section 4.2 and cannot comply prescriptively with the provisions of Sections 5.5.5.1 through 5.5.5.4, projects can use Section 5.5.5.5, Normative Appendix C, or Normative Appendix G.
Section 5.5.5.1.1 Roof Edges.
Section 5.5.5.1.1 – Revise Section 5.5.5.1.1 to read as follows:
5.5.5.1.1 Roof Edges. At roof edges without parapets or overhangs, the roof insulation and the wall insulation shall comply with the following, as applicable to the location of the insulation:
a. Where a wall has exterior continuous insulation, the roof insulation shall extend to the exterior of the wall insulation, and the wall insulation shall extend to the roof insulation.
b. Where a wall has cavity or integral insulation that represents more than 50 percent of the total wall insulation R-value, the roof-to-wall insulation shall comply with 1 of the following:
1. The cavity or integral insulation shall extend to the underside of the roof insulation.
2. The cavity or integral insulation shall extend to the underside of the roof deck, and the roof insulation shall extend to the exterior face of the wall. The wall insulation shall be permitted to be interrupted by roof framing members.
3. Additional insulation having a rated R-value of insulation not less than R-5 shall extend inward on the underside of the roof deck for not less than 2 feet (609.6 mm) and be permitted to be interrupted by roof framing members.
4. Insulation having a rated R-value of insulation not less than R-5 shall be placed at the exterior of the roof edge and be located between the bottom plane of the roof insulation and the plane of the bottom of the roof deck.
5. The wall insulation values in Tables 5.5-4 shall be adjusted in accordance with Table 5.5.5.1.1-1.6. The roof insulation values in Table 5.5-4 shall be adjusted in accordance with Table 5.5.5.1.1-2.
c. Where a mass wall has interior insulation that represents more than 50 percent of the total wall insulation R-value, the interior insulation shall extend to the underside of the roof deck, shall be permitted to be interrupted by framing members, and shall comply with 1 of the following:
1. Additional insulation having a rated R-value of insulation not less than R-5 shall extend inward on the underside of the roof deck for not less than 2 feet (609.6 mm) and be permitted to be interrupted by roof framing members.
2. Additional insulation having a rated R-value of insulation not less than R-5 shall be placed at the exterior of the roof edge and be located between the bottom plane of the roof insulation and the plane of the bottom of the roof assembly in contact with the exterior wall.
3. The wall insulation values in Table 5.5-4 shall be adjusted in accordance with Table 5.5.5.1.1-1.
4. The roof insulation values in Table 5.5-4 shall be adjusted in accordance with Table 5.5.5.1.1-2.
Informative Note: See Informative Appendix K, Figure K-1.
Section 5.5.5.1.2 Parapets.
Section 5.5.5.1.2 – Revise Section 5.5.5.1.2 to read as follows:
5.5.5.1.2 Parapets. At roof edges with parapets, the exterior wall insulation shall comply with 1 or more of the following, as applicable to the location of the insulation and wall assembly:
a. Where a wall has exterior continuous insulation, such insulation shall be applied to both vertical sides of the parapet.
Informative Note: See Informative Appendix K, Figure K-2(a).
b. Where a wall has cavity or integral insulation that represents more than 50 percent of the total wall insulation R-value, the roof to wall intersections at parapets shall comply with 1 of the following:
1. The wall insulation shall extend within the cavity of the parapet not less than the height of the top of the roof insulation. The wall insulation shall be permitted to be interrupted by roof framing members.
2. Additional insulation having a rated R-value of insulation not less than R-5 shall extend inward on the underside of the roof deck for not less than 2 feet (609.6 mm) and be permitted to be interrupted by roof framing members.
3. Insulation having a rated R-value of insulation not less than R-5 shall be placed at the exterior of the roof edge and be located between the bottom plane of the roof insulation and the plane of the bottom of the roof deck.
4. The wall insulation values in Table 5.5-4 shall be adjusted in accordance with Table 5.5.5.1.1-1.
5. The roof insulation values in Table 5.5-4 shall be adjusted in accordance with Table 5.5.5.1.1-2.
Informative Note: See Informative Appendix K, Figure K-2(b).
c. Where a mass wall has interior insulation that represents more than 50 percent of the total wall insulation R-value, the interior insulation shall extend to the underside of the roof deck, shall be permitted to be interrupted by framing members, and shall comply with 1 of the following:
1. Additional insulation having a rated R-value of insulation not less than R-5 shall extend inward on the underside of the roof deck for not less than 2 feet (609.6 mm) and be permitted to be interrupted by roof framing members.
2. Additional insulation having a rated R-value of insulation not less than R-5 shall be placed at the exterior of the roof edge and be located between the bottom plane of the roof insulation and the plane of the bottom of the roof assembly in contact with the exterior wall.
3. The wall insulation values in Table 5.5-4 shall be adjusted in accordance with Table 5.5.5.1.1-1.
4. The roof insulation values in Table 5.5-4 shall be adjusted in accordance with Table 5.5.5.1.1-2.
Informative Note: See Informative Appendix K, Figures K-2(c) and K-2(d).
Section 5.5.5.2.1.
Section 5.5.5.2.1 – Revise Section 5.5.5.2.1 to read as follows:
5.5.5.2.1. Intermediate floor edges that do not serve as balconies or floor overhangs shall comply with the following, as applicable:
a. Where a wall has exterior continuous insulation, such insulation shall extend continuously past the floor edge.
b. Where a wall has cavity insulation that represents more than 50 percent of the total wall insulation R-value, the cavity insulation shall extend to the underside of the floor deck and shall be permitted to be interrupted by floor framing members and wall top and bottom plates or tracks.
Informative Note: See Informative Appendix K, Figures K-4(a) and K-4(b).
c. Where a mass wall has integral insulation that represents more than 50 percent of the total wall insulation R-value, the intermediate floor intersection shall comply with 1 of the following:
1. The full thickness of integral insulation shall extend past the floor edge.
2. Where the intermediate floor deck extends through the integral insulation, insulation having a rated R-value of insulation not less than R-5 shall be maintained to the full depth of the floor edge on the exterior side of the floor edge.
Informative Note: See Informative Appendix K, Figures K-4(c) and K-4(d).
d. Where a mass wall has interior insulation that represents more than 50 percent of the total wall insulation R-value, the interior insulation shall extend to the underside of the floor deck, shall be permitted to be interrupted by framing members, and shall comply with 1 of the following:
1. Additional interior insulation having a rated R-value of insulation not less than R-5 shall cover the full depth of the floor edge. Such insulation shall be permitted to be interrupted by floor framing members. Fire safing applied to the full depth of the floor edge meets this requirement.
2. Additional insulation having a rated R-value of insulation not less than R-5 shall cover the full depth of the floor edge on the exterior side of the wall.
3. The wall insulation values in Table 5.5-4 shall be adjusted in accordance with Table 5.5.5.2.1.
Informative Note: See Informative Appendix K, Figures K-4(e) and K-4(f).
e. Where mass walls have not less than 50 percent of the rated R-value of insulation on the exterior side of the wall and the remainder on the interior side, the insulation on the interior side of the wall shall be permitted to be interrupted by an intermediate floor.
Informative Note: See Informative Appendix K, Figure K-4(g).
Section 5.7.2 Permit Application Documentation.
Section 5.7.2 – Revise item “c” from Section 5.7.2 to read as follows:
c. Identify air leakage compliance. Continuous air barrier compliance with whole-building pressurization testing in accordance with Section 5.4.3.1.4 shall be clearly indicated on the construction documents.
Section 5.7.3.1 Permit Application Documentation.
Section 5.7.3.1 – Revise Section 5.7.3.1 to read as follows:
5.7.3.1 Record Documents. Construction documents shall require that, within 90 days after the date of building envelope acceptance, record documents be provided to the building owner or the designated representative of the building owner. For new buildings or additions that are 10 000 square feet (929 m
2
) and greater, these documents will be required prior to passing final inspection. Record documents shall include, as a minimum, those items listed in Section 5.7.2, and the following:
a. A report complying with Section 4.2.5.1.2 providing the results of continuous air barrier compliance with whole-building pressurization testing in accordance with Section 5.4.3.1.4 and verification of the building envelope in accordance with Section 5.9.1.2.
b. Insulation documentation in accordance with Section 5.8.1.11.
c. Field inspections reports of project construction showing compliance with continuous air barrier requirements, including proper material handling and storage, use of approved materials and material substitutes, proper material and surface preparation, and air barrier continuity. Air barrier continuity shall be determined by testing or inspecting each type of unique air barrier joint or seam in the building envelope for continuity and defects.
Section 5.8.2.2 Labeling of Fenestration and Door Products.
Section 5.8.2.2 – Revise Section 5.8.2.2 to read as follows:
5.8.2.2 Labeling of Fenestration and Door Products. All manufactured and site-built fenestration and door products shall demonstrate compliance with U-value and SHGC requirements through a third party labeling program recognized by ANSI, ILAC, or MiRA and acceptable to the commissioner, or a signed and dated certificate showing compliance through modeling performed using Lawrence Berkley National Labs WINDOW/THERM software at the sizes and boundary conditions prescribed in NFRC -100/200. The simulation shall be provided by a third party recognized by ANSI, ILAC, MiRa, or an NFRC certified simulator. Air infiltration rate shall be demonstrated by testing to ASTM E283. The test shall be conducted at an independent third-party laboratory recognized by ANSI, ILAC, or MiRa, and shall be less than 5 years old.
Section 6 Heating, Ventilating, and Air Conditioning.
Section 6.1.4.1.1.
Section 6.1.4.1.1 – Add new Section 6.1.4.1.1 to read as follows:
6.1.4.1.1 Where controls are altered for more than 50 percent of the terminal distribution elements of a space heating or cooling system, the controls for all commonly served terminals and the associated, immediately upstream equipment shall comply with the controls requirements of sections 6.4 and 6.5 as new. Controls for HVAC zones that are altered based on reconfiguration of the associated space, notwithstanding alterations to the HVAC system, shall comply with sections 6.4 and 6.5.
Exceptions:
1. Controls for terminals located in a space occupied by a different tenant than the altered space.
2. Control provisions of sections 6.4 and 6.5 which are impossible to achieve without an alteration of otherwise unaltered non-control elements of the associated plant equipment.
3. Alterations of controls limited to relocation of control devices within an HVAC zone where there is no reconfiguration of space.
Section 6.1.4.2.
Section 6.1.4.2 – Revise Section 6.1.4.2 to read as follows:
6.1.4.2. New cooling systems installed to serve previously uncooled spaces and new heating systems installed to serve previously unheated spaces shall comply with this section as described in Section 6.2.
Section 6.3.2 Criteria.
Section 6.3.2 – Revise Item “e” from Section 6.3.2 to read as follows:
e. Heating (if any) shall be provided by a unitary packaged or split-system heat pump that meets the applicable efficiency requirements shown in Table 6.8.1-2 (heat pumps) or Table 6.8.1-4 (packaged terminal and room air conditioners and heat pumps), a fuel-fired furnace that meets the applicable efficiency requirements shown in Table 6.8.1-5 (furnaces, duct furnaces, and unit heaters), or a baseboard system connected to a boiler that meets the applicable efficiency requirements shown in Table 6.8.1-6 (boilers) and Section 6.4.1.6 (buildings with high efficiency space heating gas boiler systems). Heating equipment shall also comply with Section 6.4.14.
Section 6.3.2 – Revise Item “h” from Section 6.3.2 to read as follows:
h. If a heat pump equipped with auxiliary internal electric resistance heaters is installed, controls shall be provided that prevent supplemental heater operation when the heating load can be met by the heat pump alone during both steady-state operation and setback recovery. Supplemental heater operation is permitted during outdoor coil defrost cycles. The heat pump must be controlled by either (1) a digital or electronic thermostat designed for heat pump use that energizes auxiliary heat only when the heat pump has insufficient capacity to maintain set point or to warm up the space at a sufficient rate or (2) a multistage space thermostat and an outdoor air thermostat wired to energize auxiliary heat only on the last stage of the space thermostat and when outdoor air temperature is less than 17 °F.
Exception to 6.3.2(h): Heat pumps that comply with the following:
1. Have a minimum efficiency regulated by NAECA.
2. Meet the requirements in Table 6.8.1-2.
3. Include all usage of internal electric resistance heating.
Section 6.4.1.6 Buildings With High Efficiency Space Heating Gas Boiler Systems.
Section 6.4.1.6 – Add new Section 6.4.1.6 to read as follows:
6.4.1.6 Buildings With High Efficiency Space Heating Gas Boiler Systems. New buildings where space heating is served by 1 or more gas hot water boilers with a minimum thermal efficiency (Et) of 90 percent when rated in accordance with the test procedures in Table 6.5.4.1 shall comply with this section, unless otherwise approved by the authority having jurisdiction. The hot water distribution system shall be designed so that the coils and other heat exchangers are selected such that at outdoor design conditions, the hot water return temperature entering the boilers is 120°F or less when the boiler is firing.
Section 6.4.4.1.3 Piping Insulation.
Section 6.4.4.1.3 – Remove exception 3 from Section 6.4.4.1.3.
Section 6.5.6.1.2 Spaces Other than Nontransient Dwelling Units.
Section 6.5.6.1.2 – Revise Section 6.5.6.1.2 to read as follows:
6.5.6.1.2 Spaces Other than Nontransient Dwelling Units. Each fan system serving spaces other than nontransient dwelling units shall have an energy recovery system where the design supply fan airflow rate exceeds the value listed in Tables 6.5.6.1.2-1 and 6.5.6.1.2-2, based on the climate zone and percentage of outdoor air at design airflow conditions. Table 6.5.6.1.2-1 shall be used for all ventilation systems that operate less than 8000 hours per year, and Table 6.5.6.1.2-1 shall be used for all ventilation systems that operate 8000 or more hours per year.
Exceptions to 6.5.6.1.2:
1. Laboratory systems meeting Section 6.5.7.3.
2. Systems serving spaces that are not cooled and that are heated to less than 60°F.
3. Heating energy recovery where more than 60 percent of the outdoor air heating energy is provided from site-recovered energy or on-site energy in Climate Zones 5 and 6.
4. Reserved
5. Reserved
6. Where the sum of the airflow rates exhausted and relieved within 20 feet (6096 mm) of each other is less than 75 percent of the design ventilation outdoor airflow rate, excluding exhaust air that is any of the following:
a. Used for another energy recovery system;
b. Not allowed by ASHRAE/ASHE Standard 170 for use in energy recovery systems with leakage potential;
c. Prohibited by the New York City Mechanical Code; or
d. Of Class 4, as defined in ASHRAE Standard 62.1.
7. Systems in Climate Zone 4 requiring dehumidification during heating mode that employ energy recovery and have a minimum SERR of 0.40.
8. Systems expected to operate less than 20 hours per week at the outdoor air percentage covered by Table 6.5.6.1.2-1.
9. Indoor pool dehumidifiers meeting Section 6.5.6.4.
Section 6.6.2.2 Criteria.
Section 6.6.2.2 – Revise Section 6.6.2.2 to read as follows:
Section 6.7.3.4 System Balancing.
Section 6.7.3.4 – Delete Section 6.7.3.3, Section 6.7.3.3.1, Section 6.7.3.3.2, and Section 6.7.3.3.3, and add new Section 6.7.3.3, Section 6.7.3.3.1, Section 6.7.3.4, Section 6.7.3.4.1, Section 6.7.3.4.2, Section 6.7.3.4.3, Section 6.7.3.5, Section 6.7.3.5.1, Section 6.7.3.5.2, Section 6.7.3.5.3, Section 6.7.3.5.4, Section 6.7.3.5.4.1, Section 6.7.3.5.4.2, Section 6.7.3.5.5, Section 6.7.3.5.5.1, Section 6.7.3.5.5.2, Section 6.7.3.5.5.3, and Section 6.7.3.5.5.4 in their entirety.
6.7.3.3 Mechanical, renewable energy, and service water heating systems commissioning and completion requirements.
Prior to passing the final mechanical and plumbing inspections, the approved agency shall provide evidence of mechanical systems commissioning and completion in accordance with the provisions of this section.
Construction document notes shall clearly indicate provisions for commissioning and completion requirements in accordance with this section and are permitted to refer to specifications for further requirements. Copies of all documentation shall be given to the owner or owner’s authorized agent and made available to the building official upon request, in accordance with Sections 6.7.3.5.4 and 6.7.3.5.5.
Mechanical systems, renewable energy, and service water heating systems shall include at a minimum, but are not limited to, the following heating, ventilating, air conditioning, service water heating, indoor air quality, and refrigeration systems (mechanical and/or passive) and associated controls:
a. Heating, cooling, air handling and distribution, ventilation, and exhaust systems, and their related air quality monitoring systems.
b. Air, water, and other energy recovery systems.
c. Manual or automatic controls, whether local or remote, on energy using systems including but not limited to temperature controls, setback sequences, and occupancy based control, including energy management functions of the building management system.
d. Plumbing, including insulation of piping and associated valves, domestic and process water pumping, and mixing systems.
e. Mechanical heating systems and service water heating systems.
f. Refrigeration systems.
g. Renewable energy and energy storage systems.
h. Other systems, equipment, and components that are used for heating, cooling, or ventilation and that affect energy use.
Exceptions to 6.7.3.3:
1. Mechanical systems and service hot water systems in new buildings, additions, or alterations where either the total mechanical equipment capacity being installed or the total mechanical equipment connected load serving the alteration space is less than 480,000 Btu/h (140.7 kW) cooling capacity and 600,000 Btu/h (175.8 kW) combined service water-heating and space-heating capacity.
2. Renewable energy systems being installed with a generating capacity of less than 25kW.
6.7.3.3.1 Commissioning Plan.
A commissioning plan shall be developed by an approved agency and shall include the following items:
a. A narrative description of the activities that will be accomplished during each phase of commissioning, including the personnel intended to accomplish each of the activities.
b. A listing of the specific equipment, appliances, or systems to be tested, their full sequences of operation, and a description of the tests to be performed, including prerequisite activities and reference to specific checklists or worksheets which are necessary or required by the department.
c. Functions to be tested, including, but not limited to, calibrations and economizer controls.
d. Conditions under which the test will be performed. Testing shall affirm winter and summer design conditions and full outside air conditions.
e. Measurable criteria for performance.
6.7.3.4 System Balancing.
6.7.3.4.1 Systems Adjusting and Balancing.
HVAC
systems
shall be balanced in accordance with ASHRAE 111, “Testing, Adjusting, and Balancing of Building HVAC Systems,” or other accepted engineering standards as approved by the department. Air and water flow rates shall be measured and adjusted to deliver final flow rates within the tolerances provided in the product specifications. Test and balance activities shall include air system and hydronic system balancing.
6.7.3.4.2 Air Systems Balancing.
Each supply air outlet and zone terminal device shall be equipped with means for air balancing in accordance with the requirements of Chapter 6 of the New York City Mechanical Code. Discharge dampers used for air-system balancing are prohibited on constant-volume fans and variable-volume fans with motors 10 hp and larger. Air systems shall be balanced in a manner to first minimize throttling losses, then, for fans with system power of greater than 1 hp, fan speed shall be adjusted to meet design flow conditions.
6.7.3.4.3 Hydronic Systems Balancing.
Individual hydronic heating and cooling coils shall be equipped with means for balancing and measuring flow. Hydronic systems shall be proportionately balanced in a manner to first minimize throttling losses, then the pump impeller shall be trimmed or pump speed shall be adjusted to meet design flow conditions. Each hydronic system shall have either the capability to measure pressure across the pump or test ports at each side of each pump.
Exceptions to 6.7.3.4.3: The following equipment is not required to be equipped with a means for balancing or measuring flow:
a. Pumps with pump motors of 5 hp or less.
b. Where throttling results in no greater than 5 percent of the nameplate horsepower draw above that required if the impeller were trimmed.
6.7.3.5 Functional Performance Testing.
Functional performance testing specified in Sections 6.7.3.5.1 through 6.7.3.5.3 shall be conducted.
6.7.3.5.1 Equipment.
Equipment functional performance testing shall demonstrate the installation and operation of components, systems, and system-to-system interfacing relationships in accordance with approved plans and specifications, such that operation, function, and maintenance serviceability for each of the commissioned systems is confirmed. Testing shall include all modes and sequence of operation, including under full-load, part-load, and the following emergency conditions:
a. All modes as described in the sequence of operation.
b. Redundant or automatic back-up mode.
c. Performance of alarms.
d. Mode of operation upon a loss of power and restoration of power.
Exception to 6.7.3.5.1: Unitary or packaged HVAC equipment listed in Tables 6.8.1-1, 6.8.1-2, or 6.8.1-4 that do not require supply air economizers shall only be required to demonstrate functioning under full-load and part-load conditions.
6.7.3.5.2 Controls.
HVAC and service water-heating control systems shall be tested to document that control devices, components, equipment, and systems are calibrated and adjusted and operate in accordance with approved plans and specifications. Sequences of operation shall be functionally tested to document they operate in accordance with approved plans and specifications.
6.7.3.5.3 Economizers.
Air economizers shall undergo a functional test to determine that they operate in accordance with manufacturer’s specifications.
6.7.3.5.4 Preliminary Commissioning Report.
A preliminary report of commissioning test procedures and results shall be completed and certified by the approved agency and provided to the building owner or owner’s authorized agent. The report shall be organized with mechanical and service hot water findings in separate sections to allow independent review. The report shall be identified as “Preliminary Commissioning Report,” shall include the completed Commissioning Compliance Checklist, and shall identify:
a. Itemization of deficiencies found during testing required by this section that have not been corrected at the time of report preparation.
b. Deferred tests that cannot be performed at the time of report preparation because of climatic conditions.
c. Climatic conditions required for performance of the deferred tests.
d. Results of functional performance tests.
e. Functional performance test procedures used during the commissioning process, including measurable criteria for test acceptance.
6.7.3.5.4.1 Acceptance of Report.
Buildings, or portions thereof, shall not be considered acceptable for a final inspection pursuant to Article 116 of Chapter 1 of Title 28 of the Administrative Code until the building official has received a letter of transmittal from the building owner acknowledging that the building owner or owner’s authorized agent has received the Preliminary Commissioning Report.
6.7. 3.5.4.2 Copy of Report.
The building official shall be permitted to require that a copy of the Preliminary Commissioning Report be made available for review by the building official.
6.7.3.5.5 Documentation Requirements.
The construction documents shall specify that the documents described in Sections 6.7.3.5.5.1 through 6.7.2.3.5.3 be provided to the building owner or owner’s authorized agent within 90 days of the date of receipt of the certificate of occupancy. The construction documents shall also specify that the Final Commissioning Report be provided to the building owner or owner’s authorized agent in accordance with the requirements of Section 6.7.3.5.5.4.
6.7.3.5.5.1 Drawings.
Construction documents shall include the location and performance data on each piece of equipment.
6.7.3.5.5.2 Manuals.
An operating and maintenance manual shall be provided and include all of the following:
a. Submittal data stating equipment size and selected options for each piece of equipment requiring maintenance.
b. Manufacturer’s operation manuals and maintenance manuals for each piece of equipment requiring maintenance, except equipment not furnished as part of the project. Required routine maintenance actions shall be clearly identified.
c. Name and address of at least one service agency.
d. HVAC and service hot water controls system maintenance and calibration information, including wiring diagrams, schematics, and control sequence descriptions. Desired or field-determined set points shall be permanently recorded on control drawings at control devices or, for digital control systems, in system programming instructions.
6.7.3.5.5.3 System Balancing Report.
A written report describing the activities and measurements completed in accordance with Section 6.7.2.3.2.
6.7.3.5.5.4 Final Commissioning Report.
Within 30 months for new buildings 500 000 gross square feet (46 451.5 m
2
) or greater, excluding R-2 occupancies, or within 18 months for R-2 occupancies and all other buildings, of the issuance of the certificate of occupancy or letter of completion, an approved agency shall prepare a report of test procedures and results, including test procedures and results performed after occupancy, identified as the “Final Commissioning Report,” provide such report to the building owner, and submit a certification to the department with applicable fees in accordance with department rules. The owner of a building 500 000 gross square feet (46 451.5 m
2
) or greater may apply for an extension of time to the building official based on good cause, in accordance with department rules. Such report shall include the following:
a. Results of functional performance tests.
b. Disposition of deficiencies found during testing, including details of corrective measures used or proposed.
c. Functional performance test procedures used during the commissioning process including measurable criteria for test acceptance, provided herein for repeatability.
Exception to 6.7.3.5.5.4: Deferred tests that cannot be performed at the time of report preparation due to climatic conditions.
Section 7 Service Water Heating.
Section 7.2.1 Requirements for All Compliance Paths.
Section 7.2.1 – Revise Section 7.2.1 to read as follows:
7.2.1 Requirements for All Compliance Paths. Service water heating systems and equipment shall comply with Sections 7.1, “General”; 7.4, “Mandatory Provisions”; 7.7, “Submittals”; Section 6.7.3.3, “Mechanical, renewable energy, and service water heating systems commissioning and completion requirements”; and 7.8, “Product Information.”
Section 7.4.7 Demand responsive water heating.
Section 7.4.7 – Add new Section 7.4.7 to read as follows:
7.4.7 Demand responsive water heating. Electric storage water heaters with a rated water storage volume of 40 gallons (150L) to 120 gallons (450L) and a nameplate input rating equal to or less than 12kW shall be provided with demand responsive controls in accordance with Table 7.4-3.
Exceptions:
1. Water heaters that provide a hot water delivery temperature of 180°F (82°C) or greater.
2. Water heaters that comply with Section IV, Part HLW, or Section X of the ASME Boiler and Pressure Vessel Code.
3. Water heaters that use 3-phase electric power.
Table 7.4-3 Demand Responsive Controls for Water Heating.
Table 7.4-3 – Add new Table 7.4-3 to read as follows:
Table 7.4-3 Demand Responsive Controls for Water Heating
Equipment Type
Controls
Manufactured before 7/1/2025
Manufactured on or after 7/1/2025
Electric storage Water heaters
AHRI Standard 1430 or ANSI/CTA-2045-B Level 1 and also capable of initiating water heating to meet the temperature set point in response to a demand response signal.
AHRI Standard 1430
Section 8 Power.
Section 8.4.3.1 Monitoring.
Section 8.4.3.1 – Revise Section 8.4.3.1 to read as follows:
8.4.3.1 Monitoring. Measurement devices shall be installed in new buildings to monitor the electrical energy use for each of the following separately:
a. Total electrical energy
b. HVAC systems
c. Interior lighting
d. Exterior lighting
e. Receptacle circuits
f. Refrigeration systems
g. Electric vehicle charging
For buildings with tenants, these systems shall be separately monitored for the total building and (excluding shared systems) for each individual tenant.
Exception to 8.4.3.1: Where the design load for each of any of the categories (b) through (f) is less than 10 percent of the whole-building load, these categories shall be allowed to be loads combined with other categories.
Section 8.4.3.2 Recording and Reporting.
Section 8.4.3.2 – Revise the exceptions from Section 8.4.3.2 to read as follows:
Exceptions to Sections 8.4.3.1 and 8.4.3.2:
1. Buildings less than 10,000 ft
2
.
2. Individual tenant spaces less than 5,000 ft
2
.
3. Dwelling units.
4. Residential buildings with less than 10,000 ft
2
of common area.
5. Critical equipment and life-safety branches of Article 517 of the New York City Electrical Code.
Section 8.4.5 Electrification Ready
Section 8.4.5 – Delete Section 8.4.5.
Section 8.4.5 Measurement of electrical consumption of tenant spaces in covered buildings.
Section 8.4.5 – Add new Section 8.4.5 to read as follows:
8.4.5 Measurement of electrical consumption of tenant spaces in covered buildings. Each covered tenant space in a new building shall be equipped with a separate meter or sub-meter to measure the electrical consumption of such space when let or sublet. The terms covered building, meter, sub-meter, tenant space, and covered tenant space shall have the same meanings as defined in Section 28-311.2 of the Administrative Code.
Section 8.4.6 Dwelling unit metering.
Section 8.4.6 – Add new Section 8.4.6 to read as follows:
8.4.6 Dwelling unit metering. Each dwelling unit located in a Group R-2 building shall have a separate electrical meter.
Section 9 Lighting.
Section 9.4.1.1 Interior Lighting Controls.
Section 9.4.1.1 – Revise item “g” from Section 9.4.1.1 to read as follows:
g. Automatic reduction control (full OFF complies): The general lighting power in the space shall be automatically reduced by at least 50 percent within 15 minutes of all occupants leaving the space. The controls in open plan offices, cafeteria dining areas, and fast food dining areas, that are 300 ft
2
and greater in area, shall be configured so that general lighting power in each control zone is reduced by not less than 80 percent of the full zone general lighting power in a reasonably uniform illumination pattern within 15 minutes of all occupants leaving that control zone. Control functions that switch control zone lights completely off when the zone is vacant meet this requirement.
In offices greater than 300 ft
2
, control zones for general lighting shall:
1. Be limited to 600 ft
2
; and
2. Automatically reduce general lighting by at least 80 percent of full power within 15 minutes of all occupants leaving a control zone.
Section 9.4.1.1 – Revise item “h” from Section 9.4.1.1 to read as follows:
h. Automatic full OFF control: All lighting in the space, including lighting connected to emergency circuits, shall be automatically shut off within 15 minutes of all occupants leaving the space. A control device meeting this requirement shall control no more than 5000 ft
2
, provided that for open plan office spaces or dining spaces, a control device meeting this requirement shall control not greater than 600 ft
2
.
Exception to 9.4.1.1(h): The following lighting is not required to be automatically shut off:
1. Lighting required for 24/7 operation.
2. Lighting in spaces where patient care is rendered.
3. General lighting and task lighting in spaces where automatic shutoff would endanger the safety or security of the room or building occupants.
4. Lighting load exceeding 0.02 W/ft
2
multiplied by the gross lighted floor area of the building.
Section 9.4.1.5 Demand responsive lighting controls.
Section 9.4.1.5 – Add new Section 9.4.1.5 to read as follows:
9.4.1.5 Demand responsive lighting controls. Interior general lighting in Group B, E, M, and S occupancies shall have demand responsive controls complying with Section 9.4.1.5.1 in not less than 75 percent of the interior floor area.
Exceptions:
1. Where the combined interior floor area of Group B, E, M, and S occupancies is less than 10 000 square feet (929 m
2
).
2. Buildings where a demand response signal is not available from a controlling entity other than the owner.
3. Parking garages.
4. Ambulatory care facilities.
5. Outpatient clinics.
6. Physician or dental offices.
Section 9.4.1.5.1 Demand responsive lighting controls function.
Section 9.4.1.5.1 – Add new Section 9.4.1.5.1 to read as follows:
9.4.1.5.1 Demand responsive lighting controls function.
Demand responsive controls for lighting shall be capable of the following:
1. Automatically reducing the output of controlled lighting to 80 percent or less of full power or light output upon receipt of a demand response signal.
2. Where high-end trim has been set, automatically reducing the output of controlled lighting to 80 percent or less of the high-end trim setpoint upon receipt of a demand response signal.
3. Dimming controlled lights gradually and continuously over a period of not longer than 15 minutes to achieve their demand response setpoint.
4. Returning controlled lighting to its normal operational settings at the end of the demand response period.
Exception: Storage rooms and warehouse storage areas shall be permitted to switch off 25 percent or more of general lighting power rather than dimming.
Section 9.4.3.1 Lamp and Luminaire Efficacy.
Section 9.4.3.1 – Revise Section 9.4.3.1 to read as follows:
9.4.3.1 Lamp and Luminaire Efficacy. At least 90 percent of the permanently installed luminaires shall use lamps with an efficacy of at least 75 lm/W or have a total luminaire efficacy of at least 50 lm/W.
Section 9.4.4 Horticultural Lighting.
Section 9.4.4 – Delete Section 9.4.4, Section 9.4.4.1, and Section 9.4.4.2, and add new Section 9.4.4 to read as follows:
9.4.4 Horticultural Lighting. Luminaires in indoor grow spaces and greenhouse buildings used for horticultural lighting shall have a photosynthetic photon efficacy (PPE) of at least 2.1 :mol/J. Horticultural lighting in greenhouse spaces and indoor grow spaces shall be controlled by a device that automatically turns off the horticultural lighting at specific programmed times.
Table 9.5.1 Lighting Power Density Allowances Using the Building Area Method.
Table 9.5.1 – Delete Table 9.5.1and add new Table 9.5.1 to read as follows:
Table 9.5.1
Lighting Power Density
Allowances Using the
Building
Area Method
Building
Area Type
a
LPD
, W/ft
2
Automotive facility
0.64
Convention center
0.64
Courthouse
0.74
Dining: Bar lounge/leisure
0.69
Dining: Cafeteria/fast food
0.66
Dining: Family
0.61
Dormitory
0.52
Exercise center
0.65
Fire station
0.50
Gymnasium
0.67
Health-care clinic
0.68
Hospital
0.86
Hotel/motel
0.53
Library
0.78
Manufacturing facility
0.60
Motion picture theater
0.43
Multifamily
0.46
Museum
0.56
Office
0.62
Parking garage
0.12
Penitentiary
0.65
Performing arts theater
0.82
Police station
0.62
Post office
0.62
Religious facility
0.66
Retail
0.78
School/university
0.67
Sports arena
0.73
Town hall
0.67
Transportation
0.51
Warehouse
0.41
Workshop
0.83
a. In cases where both a general
building
area type and a specific
building
area type are listed, the specific building area type shall apply.
b. Neither the area of the dwelling units nor the wattage of lighting in the dwelling units is counted.
Section 9.5.2.1 Space-by-Space Method of Calculating Interior Lighting Power Allowance.
Section 9.5.2.1 – Revise Item “c” from Section 9.5.2.1 to read as follows:
c. Based on the space type selected for each space or subspace, determine the lighting power allowance of each space or subspace by multiplying the calculated area of the space or subspace by the appropriate LPD allowance determined in Section 9.6.1(a). For space types not listed, selection of a reasonable equivalent category shall be permitted. Where a building has unfinished spaces, the lighting power allowance for the unfinished spaces shall be the total connected lighting power for those spaces, or 0.2 watts per square foot, whichever is less.
Table 9.5.2.1-1 Space-by-Space Lighting Power Density Allowances and Minimum Control Requirements Using Either Method.
Table 9.5.2.1-1 – Revise Table 9.5.2.1-1 to read as follows:
Table 9.5.2.1-1 Space-by-Space Lighting Power Density Allowances and Minimum Control Requirements Using Either Method
Informative Note:
This table is divided into two sections; this first section covers
space
types that can be commonly found in multiple
building
types. The second part of this table covers
space
types that are typically found in a single
building
type.
The
control
functions below shall be implemented in accordance with the descriptions found in the referenced paragraphs within Section 9.4.1.1. For each
space
type: (1) All REQs shall be implemented. (2) At least one ADD1 (when present) shall be implemented. (3) At least one ADD2 (when present) shall be implemented.
Local
Control
Manual
ON
Partial ON
Multilevel Lighting
Control
Daylight Response Sidelighting
Daylight Response
Toplighting
Auto Reduction
Auto
Full OFF
Scheduled Shutoff
Common
Space
Types
1
LPD
Allowances, W/ft
2
RCR
Threshold
9.4.1.1[a]
9.4.1.1[b]
9.4.1.1[c]
9.4.1.1[d]
9.4.1.1[e]
9.4.1.1[f]
9.4.1.1[g]
9.4.1.1[h])
9.4.1.1[i])
Atrium
<20 ft in height
0.32
NA
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
³
20 ft and
£
40 ft in height
0.41
NA
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
>40 ft in height
0.51
11
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Audience Seating Area
Auditorium
0.57
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Gymnasium
0.23
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Motion picture theater
0.27
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Performing arts theater
1.10
8
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Sports arena
0.27
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
All other audience seating areas
0.23
4
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Banking Activity Area
0.56
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Classroom / Lecture Hall / Training Room
Shop classroom
1.17
6
REQ
ADD1
ADD1
REQ
REQ
REQ
All other classrooms / lecture halls / training rooms
0.72
4
REQ
REQ
ADD1
REQ
REQ
REQ
REQ
Computer Room
0.75
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Conference / Meeting / Multipurpose Rooms
0.88
6
REQ
REQ
ADD1
ADD1
REQ
REQ
REQ
REQ
Control (Editing Room or Booth)
0.73
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Copy / Print Room
0.5
6
REQ
ADD1
ADD1
REQ
REQ
REQ
REQ
Corridor
0.44
width 8 ft
REQ
REQ
REQ
REQ
ADD2
ADD2
Courtroom
1.06
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Dining Areas
Bar / lounge or leisure dining
0.62
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Cafeteria or fast-food dining
0.36
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Family dining
0.52
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
All other dining areas
0.42
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Electrical / Mechanical Room
7
0.39
6
REQ
REQ
REQ
Emergency Vehicle Garage
0.41
4
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Equipment Room
0.73
REQ
ADD1
ADD1
REQ
REQ
ADD2
Food Preparation Area
0.92
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Guest Room
0.41
6
See Section 9.4.1.3(b).
Laboratory
In or as a classroom
1.04
6
REQ
ADD1
ADD1
REQ
REQ
REQ
REQ
ADD2
ADD2
All other laboratories
1.21
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Laundry / Washing Area
0.43
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
REQ
ADD2
Loading Dock, Interior
0.51
6
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Lobby
Elevator
0.52
6
REQ
REQ
REQ
ADD2
ADD2
Hotel
0.48
4
REQ
REQ
REQ
ADD2
ADD2
Motion picture theater
0.20
4
REQ
REQ
REQ
ADD2
ADD2
Performing arts theater
0.82
6
REQ
REQ
REQ
REQ
ADD2
ADD2
All other lobbies
0.80
4
REQ
REQ
REQ
REQ
ADD2
ADD2
Locker Room
0.43
6
REQ
ADD1
ADD1
REQ
REQ
REQ
REQ
Lounge / Breakroom
Mother's / wellness room
0.68
6
REQ
ADD1
ADD1
REQ
REQ
All other lounges / breakrooms
0.44
4
REQ
ADD1
ADD1
REQ
REQ
REQ
REQ
Office
Office
£
150 ft
2
0.73
8
REQ
ADD1
ADD1
REQ
REQ
Office >150 and
£
300 ft
2
0.66
8
REQ
ADD1
ADD1
REQ
REQ
Offices >300 ft
2
0.56
4
REQ
ADD1
ADD1
REQ
REQ
REQ
REQ
REQ
Parking Garage
Daylight transition ]one
1.06
4
See Section 9.4.1.2.
All other parking and drive areas
0.11
4
See Section 9.4.1.2.
Pharmacy Area
1.23
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Restroom
s
0.74
8
ADD1
ADD1
REQ
REQ
REQ
Sales Area
4
(For accent lighting, see Section 9.5.2.2[b].)
0.85
6
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Seating Area, General
0.21
4
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Security Screening
Airport bus ship train transportation screening
0.93
6
REQ
REQ
REQ
ADD2
Airport bus ship train transportation screening queue
0.56
6
REQ
REQ
REQ
ADD2
General security screening
0.64
6
REQ
REQ
REQ
ADD2
Stairway The
space
containing the stairway shall determine the
LPD
and control requirements for the stairway.
Stairwell
0.47
10
REQ
REQ
REQ
REQ
ADD2
ADD2
Storage Room
< 50 ft
2
0.43
9
REQ
REQ
ADD2
ADD2
³
50 ft
2
0.35
6
REQ
ADD1
ADD1
REQ
REQ
REQ
Vehicular Maintenance Area
0.53
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Workshop (including workshop classrooms)
1.09
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
a. Where both a common
space
type and a
building
-specific
space
type are listed, the
building
specific
space
type shall apply (see Table 9.5.2.1-2 for
building
-specific
space
types)
.
b.
Automatic
daylight responsive controls are mandatory only if the
space
meets the requirements of the specified sections.
Table 9.5.2.1-2 Space-by-Space Lighting Power Density Allowances and Minimum Control Requirements Using Either Method.
Table 9.5.2.1-2 – Revise Table 9.5.2.1-2 to read as follows:
Table 9.5.2.1-2 Space-by-Space Lighting Power Density Allowances and Minimum Control Requirements Using Either Method
Informative Note:
This table covers building-specific space types typically foundin a single building type. Table 9.5.2.1-1 covers common space types typicallyfound in multiple building types.
The control functions below shall be implemented in accordance with the descriptions found within Section 9.4.1.1. For each
space
type: (1)
All REQs shall be implemented. (2)
At least one ADD1 (when present) shall be implemented. (3)
At least one ADD2 (when present) shall be implemented.
Local
Control
Manual
ON
Partial
Auto
ON
Bilevel
Multilevel Lighting
Control
Daylight Response Sidelighting
Daylight Response
Toplighting
Auto Reduction
Auto
Full OFF
Scheduled Shutoff
Building-Specific Space Types
a
LPD
Allowances, W/ft
2
RCR
Threshold
9.4.1.1[a]
9.4.1.1[b]
9.4.1.1[c]
9.4.1.1[d]
9.4.1.1[e]
9.4.1.1[f]
9.4.1.1[g]
9.4.1.1[h])
9.4.1.1[i])
Casino-Gaming Area
Betting / sportsbook / keno / bingo area
0.82
5
REQ
ADD2
ADD2
High-limit game area
1.68
4
REQ
ADD2
ADD2
Slot machine/digital gaming area
0.54
5
REQ
ADD2
ADD2
Table games area
1.09
5
REQ
ADD2
ADD2
Convention Center—Exhibit
Space
0.5
4
REQ
ADD1
ADD1
REQ
REQ
REQ
REQ
Correctional Facilities
Audience seating area
0.56
4
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Classroom/lecture hall/training room
0.74
4
REQ
ADD1
ADD1
REQ
REQ
REQ
Confinement cells
0.6
6
REQ
REQ
Dining area
0.35
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Dormitory—Living Quarters
0.46
8
REQ
Facility for the Visually Impaired
3
(A facility for the visually impaired is a facility that can be documented as being designed to comply with the light levels in ANS,/,ES R3-28 and that is or will be licensed by local / state authorities for senior long-term care, adult daycare, senior support, and/or people with special visual needs.)
Chapel (used primarily by residents)
0.58
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Corridor (used primarily by residents)
0.71
width 8 ft
REQ
REQ
REQ
REQ
ADD2
ADD2
Dining (used primarily by residents)
1.22
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Lobby
1.44
4
REQ
REQ
REQ
REQ
ADD2
ADD2
Recreation room / common living room (used primarily by residents)
1.2
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Restroom (used primarily by residents)
0.96
8
REQ
REQ
REQ
Fire Station—Sleeping Quarters
0.19
6
REQ
Gymnasium / Fitness Center
Exercise area
0.50
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Playing area
0.75
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Healthcare Facility
Control room (MRT / CT / radiology / PET)
0.78
8
REQ
REQ
REQ
REQ
Exam / treatment room
1.16
8
REQ
REQ
REQ
REQ
ADD2
ADD2
Hospital corridor
0.61
width 8 ft
REQ
REQ
REQ
ADD2
ADD2
ADD2
Imaging room
0.94
6
REQ
REQ
ADD2
ADD2
Lounge
0.77
6
REQ
ADD1
ADD1
REQ
REQ
REQ
REQ
Medical supply room
0.54
6
REQ
ADD1
ADD1
REQ
Nursery
0.87
6
REQ
REQ
REQ
REQ
ADD2
ADD2
Nurse’s station
0.75
6
REQ
REQ
REQ
REQ
ADD2
ADD2
Operating room
1.87
6
REQ
REQ
Patient room
0.45
6
REQ
REQ
Physical therapy room
0.82
6
REQ
REQ
REQ
REQ
ADD2
ADD2
Recovery room
0.89
6
REQ
REQ
ADD2
ADD2
Telemedicine
1.44
8
ADD1
ADD1
REQ
REQ
REQ
REQ
Library
Reading area
0.77
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Stacks
1.18
4
REQ
ADD1
ADD1
REQ
ADD2
ADD2
Manufacturing Facility
Detailed manufacturing area
0.75
4
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Extra-high bay area (>50 ft
floor
-to-ceiling height)
0.73
8
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
High bay area (25 to 50 ft
floor-to-ceiling height
)
0.58
6
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Low bay area (<25 ft
floor-to-ceiling height
)
0. 5
3
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Museum
General exhibition area
0.31
6
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Restoration room
0.77
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Performing Arts Theater—Dressing Room
0.35
6
REQ
ADD1
ADD1
REQ
REQ
REQ
REQ
Post Office—Sorting Area
0. 66
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Religious Facility
Audience seating area
0. 72
4
REQ
REQ
REQ
REQ
ADD2
ADD2
Fellowship hall
0.5
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Worship / pulpit / choir area
0. 75
4
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
ADD2
Retail Facilities
Dressing / fitting room
0.45
REQ
ADD1
ADD1
REQ
REQ
REQ
ADD2
Hair care
0.65
6
REQ
ADD1
ADD2
ADD2
Mall concourse
0.57
4
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
Massage
0. 81
REQ
ADD1
ADD1
REQ
ADD2
ADD2
Nail care
0. 5
6
REQ
ADD1
ADD1
ADD2
ADD2
Sports Arena—Playing Area
8
(Class of play as defined by ANSI/IES RP-6)
Class I facility
2.26
4
REQ
REQ
REQ
REQ
REQ
Class II facility
1.45
4
REQ
REQ
REQ
REQ
REQ
Class III facility
1.08
4
REQ
REQ
REQ
REQ
REQ
Class IV facility
0. 5
4
REQ
ADD1
ADD1
REQ
REQ
ADD2
ADD2
a. Where both a common space type and a building-specific space type are listed, the building specific space type shall apply (see Table 9.5.2.1-1 for common space types).
b. Automatic daylight responsive controls are mandatory only if the space meets the requirements of the specified sections.
Section 9.9.1 Verification and Testing.
Section 9.9.1– Revise Item “b” from Section 9.9.1to read as follows:
b. Automatic Time Switches
1. Confirm that the automatic time-switch control is programmed with accurate weekday, weekend, and holiday schedules, as applicable.
2. Document for the owner automatic time-switch control programming, including weekday, weekend, and holiday schedules, as well as all setup and preference program settings.
3. Verify that correct time and date are properly set in the time switch.
4. Verify that any battery backup is installed and energized, as applicable.
5. Verify that the override time limit is set to no more than 2 hours.
6. Simulate occupied condition. Verify and document the following:
i. All lights can be turned on and off by their respective area control switch.
ii. The switch only operates lighting in the enclosed space in which the switch is located.
7. Simulate unoccupied condition. Verify and document the following:
i. All nonexempt lighting turns off.
ii. Manual override switch allows only the lights in the enclosed space where the override switch is located to turn on or remain on until the next scheduled shut off occurs.
8. Additional testing as specified by the registered design professional.
Section 9.9.1.1 Documentation Requirements.
Section 9.9.1.1 – Add new Section 9.9.1.1 to read as follows:
9.9.1.1 Documentation Requirements. The construction documents shall specify that the documents described in this section be provided to the building owner or owner’s authorized agent within 90 days of the date of receipt of the certificate of occupancy.
Section 9.9.1.1.1 Drawings.
Section 9.9.1.1.1 – Add new Section 9.9.1.1.1 to read as follows:
9.9.1.1.1 Drawings. Construction documents shall include the location and catalogue number of each piece of equipment.
Section 9.9.1.1.2 Manuals.
Section 9.9.1.1.2 – Add new Section 9.9.1.1.2 to read as follows:
9.9.1.1.2 Manuals. An operating and maintenance manual shall be provided and include the following:
a. Name and address of not less than 1 service agency for installed equipment.
b. A narrative of how each system is intended to operate, including recommended setpoints.
c. Submittal data indicating all selected options for each piece of lighting equipment and lighting controls.
d. Operation and maintenance manuals for each piece of lighting equipment. Required routine maintenance actions, cleaning, and recommended relamping shall be clearly identified.
e. A schedule for inspecting and recalibrating all lighting controls.
Section 9.9.1.1.3 Report.
Section 9.9.1.1.3 – Add new Section 9.9.1.1.3 to read as follows:
9.9.1.1.3 Report. A report of test results shall be provided and include the following:
a. Results of functional performance tests.
b. Disposition of deficiencies found during testing, including details of corrective measures used or proposed.
Section 10 Other Equipment.
Section 10.4.3.5.1 Motor.
Section 10.4.3.5.1 – Add new Section 10.4.3.5.1 to read as follows:
10.4.3.5.1 Motor. Induction motors with a Class IE2 efficiency rating, as defined by IEC EN 60034-30, or alternative technologies, such as permanent magnet synchronous motors that have equal or better efficiency, shall be used.
Section 10.4.3.5.2 Transmission.
Section 10.4.3.5.2 – Add new Section 10.4.3.5.2 to read as follows:
10.4.3.5.2 Transmission. Transmissions shall not reduce the efficiency of the combined motor/transmission for the Class IE2 motor for elevators with capacities below 4,000 pounds. Gearless machines shall be assumed to have a 100 percent transmission efficiency.
Section 10.4.3.5.3 Drive.
Section 10.4.3.5.3 – Add new Section 10.4.3.5.3 to read as follows:
10.4.3.5.3 Drive. Potential energy released during motion shall be recovered with a regenerative drive that supplies electrical energy to the building electrical system.
Section 10.4.4.1.1 Regenerative Drive.
Section 10.4.4.1.1 – Add new Section 10.4.4.1.1 to read as follows:
10.4.4.1.1 Regenerative Drive. An escalator designed either for one-way down operation only or for reversible operation shall have a variable frequency regenerative drive that supplies electrical energy to the building electrical system when the escalator is loaded with passengers whose combined weight exceeds 750 pounds.
Section 10.4.7.2 Recording and Reporting.
Section 10.4.7.2– Revise the exceptions to Section 10.4.7.2 to read as follows:
Exceptions to 10.4.7.1 and 10.4.7.2:
1. Buildings or additions less than 10,000 ft
2
.
2. Individual tenant spaces less than 5,000 ft
2
.
3. Dwelling units.
4. Residential buildings with less than 10,000 ft
2
of common area.
5. Fuel used for on-site emergency equipment.
Section 10.4.11 Commercial Kitchen Equipment.
Section 10.4.11 – Add new Section 10.4.11 to read as follows:
10.4.11 Commercial Kitchen Equipment
. Commercial kitchen equipment shall comply with the minimum efficiency requirements of Tables 10.4.11-1 through 10.4.11-5.
Table 10.4.11-1 Minimum Efficiency Requirements: Commercial Fryers
(This table is intended to be a restatement of the legally binding provisions found in Title 10 CFR Part 431 included here as a convenience to the users of this code)
Heavy-Load Cooking Energy Efficiency
Idle Energy Rate
Test Procedure
Standard Open Deep-Fat Gas Fryers
³ 50%
£ 9,000 Btu/hr
ASTM Standard F1361-17
Large Vat Open Deep-Fat Gas Fryers
³ 50%
£ 12,000 Btu/hr
Standard Open Deep-Fat Electric Fryers
³ 83%
£ 800 watts
ASTM Standard F2144-17
Large Vat Open Deep-Fat Electric Fryers
³ 80%
£ 1,100 watts
Table 10.4.11-2 Minimum Efficiency Requirements: Commercial Hot Food Holding Cabinets
(This table is intended to be a restatement of the legally binding provisions found in Title 10 CFR Part 431 included here as a convenience to the users of this code)
Product Interior Volume (Cubic Feet)
Maximum Idle Energy Consumption Rate (Watts)
Test Procedure
0 < V < 13
£ 21.5 V
ASTM Standard F2140-11
13 £ V < 28
£ 2.0 V + 254.0
28 £ V
£ 3.8 V + 203.5
Table 10.4.11-3 Minimum Efficiency Requirements: Commercial Steam Cookers
(This table is intended to be a restatement of the legally binding provisions found in Title 10 CFR Part 431 included here as a convenience to the users of this code)
Fuel Type
Pan Capacity
Cooking Energy Efficiency
a
Idle Rate
Test Procedure
Electric Steam
3-pan
50%
400 watts
ASTM Standard F1484-18
4-pan 5-pan
50% 50%
530 watts 670 watts
6-pan and larger
50%
800 watts
Gas Steam
3-pan
38%
6,250 Btu/h
4-pan
38%
8,350 Btu/h
5-pan
38%
10,400 Btu/h
6-pan and larger
38%
12,500 Btu/h
Table 10.4.11-4 Minimum Efficiency Requirements: Commercial Dishwashers
(This table is intended to be a restatement of the legally binding provisions found in Title 10 CFR Part 431 included here as a convenience to the users of this code)
High Temperature Efficiency Requirements Machine Type
Low Temperature Efficiency Requirements Test Procedure
Idle Energy Rate
a
Water Consumption
b
Idle Energy Rate
a
Water Consumption
b
Under Counter
£ 0.50 kW
£ 0.86 GPR
£ 0.50 kW
£ 1.19 GPR
Stationary Single Tank Door
£ 0.70 kW
£ 0.89 GPR
£ 0.60 kW
£ 1.18 GPR
ASTM F1696-18
Pot, Pan , and Utensil
£ 1.20 kW
£ 0.58 GPSF
£ 1.00 kW
£ 0.58 GPSF
Single Tank Conveyor
£ 1.50 kW
£ 0.70 GPR
£ 1.50 kW
£ 0.79 GPR
ASTM F1920-15
Multiple Tank Conveyor
£2.25 kW
£ 0.54 GPR
£ 2.00 kW
£ 0.54 GPR
Single Tank Flight Type
Reported
GPH £ 2.975x + 55.00
Reported
GPH £ 2.975x + 55.00
Multiple Tank Flight Type
Reported
GPH £ 4.96x + 17.00
Reported
GPH £ 4.96x + 17.00
a. Idle results shall be measured with the door closed and represent the total idle energy consumed by the machine including all tank heater(s) and controls. Booster heater (internal or external) energy consumption should not be part of this measurement unless it cannot be separately monitored per US EPA Energy Star Commercial Dishwasher Specification Version 2.0.
b. GPR = gallons per rack; GPSF = gallons per square foot of rack; GPH = gallons per hour; x = sf of conveyer belt (i.e., W*L/min (maximum conveyor speed).
Table 10.4.11-5 Minimum Efficiency Requirements: Commercial Ovens
(This table is intended to be a restatement of the legally binding provisions found in Title 10 CFR Part 431 included here as a convenience to the users of this code)
Fuel Type
Classification
Idle Rate
Cooking-Energy Efficiency, %
Test Procedure
Convection Ovens
Gas
Full-Size
£ 12,000 Btu/h
³ 46
ASTM F1496 - 13
Electric
Half-Size
£ 1.0 Btu/h
³ 71
Full-Size
£ 1.60 Btu/h
Combination Ovens
Gas
Steam Mode
£ 200P
a
+ 6,511 Btu/h
³ 41
ASTM F2861 - 17
Convection Mode
£ 150P
a
+ 5,425 Btu/h
³ 56
Electric
Steam Mode
£ 0.133P
a
+ 0.6400 kW
³ 55
Convection Mode
£ 0.080P
a
+ 0.4989 kW
³ 76
Rack Ovens
Gas
Single
£ 25,000 Btu/h
³ 48
ASTM F2093 - 18
Double
£ 30,000 Btu/h
³ 52
a. P = Pan Capacity: The number of steam table pans the combination oven is able to accommodate as per the ASTM F1495 – 05 standard specification.
Section 11 Additional Efficiency Requirements.
Section 11.5.2 Energy Credits Achieved.
Section 11.5.2 – Amend the first paragraph of Section 11.5.2 to read as follows:
Energy credits achieved for the project shall be the sum of measure energy credits for individual measures included in the project. Energy credits shall only be counted to satisfy this code section if such systems, equipment, or efficiencies exceed the requirements of any current state or local law, rule, or regulation. Where a project contains multiple building use types, credits achieved for each building use type shall be weighted by the gross floor area of each building use type group to determine the weighted-average project energy credits achieved. The combined renewable (R01) and load management (G01 through G07) energy credits achieved through Section 11.5.2.6 and 11.5.2.8 shall be limited to meeting 60 percent of required energy credits. Credits are available for the measures listed in Section 11.5.2.1 through 11.5.2.8. Base energy credits are shown in Tables 11.5.3-1 through 11.5.3-9 for building use types in each climate zone. Measure energy credits achieved shall be determined in 1 of 3 ways, depending on the measure:
Section 11.5.2.3.1 Improved Service Water Heating Effectiveness.
Section 11.5.2.3.1 – Revise item “c” from Section 11.5.2.3.1 to read as follows:
c. Reserved
Section 11.5.2.3.1 – Revise item “d” from Section 11.5.2.3.1 to read as follows:
d. Combination service water heating systems shall achieve credits as follows:
1. (W01 + W02) Where service water heating employs both energy recovery and heat-pump water heating, W01 is permitted to be combined with W02 and receive the sum of both credits.
2. Reserved
3. Reserved
4. Reserved
Section 11.5.2.7.1 Q01: Efficient Elevator Equipment.
Section 11.5.2.7.1 – Revise Section 11.5.2.7.1 to read as follows:
11.5.2.7.1 Q01: Efficient Elevator Equipment. Reserved.
Section 11.5.2.7.2 Q02: Efficient Kitchen Equipment.
Section 11.5.2.7.2 – Revise Section 11.5.2.7.2 to read as follows:
11.5.2.7.2 Q02: Efficient Kitchen Equipment. Reserved
Normative Appendix A - Rated R-Value of Insulation and Assembly U-Factor, C-Factor, and F-Factor Determinations.
Table A3.3.3. 1 Assembly U-factors for Steel-Frame Walls by Stud Spacing and Framing Factor
a, b
Table A3.3.3. 1 – Delete Table A3.3.3. 1 in its entirety and add new Table A3.3.3. 1 to read as follows:
Table A3.3.3. 1 Assembly U-factors for Steel-Frame Walls by Stud Spacing and Framing Factor
a, b
Cavity Insulation Value
Base Wall U-factor at Framing
Overall U-Factor for Assembly of Base Wall Plus Continuous Insulation (Uninterrupted by Framing or Furring)
Rated R-Value of Continuous Insulation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
20
25
30
35
40
Steel Framing at 12 in. on Center (25% Framing Factor)—includes framing for tracks, blocking, headers, and jamb and king studs
0.9
0.351
0.260
0.206
0.171
0.146
0.127
0.113
0.102
0.092
0.084
0.078
0.072
0.067
0.063
0.059
0.056
0.044
0.036
0.030
0.026
0.023
11
0.156
0.135
0.119
0.106
0.096
0.088
0.081
0.075
0.069
0.065
0.061
0.057
0.054
0.052
0.049
0.047
0.038
0.032
0.027
0.024
0.022
13
0.149
0.130
0.115
0.103
0.094
0.086
0.079
0.073
0.068
0.064
0.060
0.057
0.053
0.051
0.048
0.046
0.037
0.032
0.027
0.024
0.021
15
0.144
0.126
0.112
0.101
0.092
0.084
0.077
0.072
0.067
0.063
0.059
0.056
0.053
0.050
0.048
0.046
0.037
0.031
0.027
0.024
0.021
19
0.137
0.121
0.108
0.097
0.089
0.081
0.075
0.070
0.065
0.061
0.058
0.055
0.052
0.049
0.047
0.045
0.037
0.031
0.027
0.024
0.021
21
0.135
0.119
0.106
0.096
0.088
0.080
0.074
0.069
0.065
0.061
0.057
0.054
0.051
0.049
0.047
0.045
0.036
0.031
0.027
0.024
0.021
25
0.131
0.116
0.104
0.094
0.086
0.079
0.073
0.068
0.064
0.060
0.057
0.054
0.051
0.048
0.046
0.044
0.036
0.031
0.027
0.023
0.021
30
0.127
0.113
0.101
0.092
0.084
0.078
0.072
0.067
0.063
0.059
0.056
0.053
0.050
0.048
0.046
0.044
0.036
0.030
0.026
0.023
0.021
Steel Framing at 16 in. on Center (22% Framing Factor)—includes framing for tracks, blocking, headers, and jamb and king studs
0.9
0.350
0.259
0.206
0.171
0.146
0.127
0.113
0.101
0.092
0.084
0.078
0.072
0.067
0.063
0.059
0.056
0.044
0.036
0.030
0.026
0.023
11
0.148
0.129
0.114
0.103
0.093
0.085
0.078
0.073
0.068
0.063
0.060
0.056
0.053
0.051
0.048
0.046
0.037
0.031
0.027
0.024
0.021
13
0.141
0.124
0.110
0.099
0.090
0.083
0.076
0.071
0.066
0.062
0.059
0.055
0.052
0.050
0.047
0.045
0.037
0.031
0.027
0.024
0.021
15
0.136
0.120
0.107
0.097
0.088
0.081
0.075
0.070
0.065
0.061
0.058
0.054
0.052
0.049
0.047
0.045
0.037
0.031
0.027
0.024
0.021
19
0.129
0.114
0.102
0.093
0.085
0.078
0.073
0.068
0.063
0.060
0.056
0.053
0.051
0.048
0.046
0.044
0.036
0.031
0.026
0.023
0.021
21
0.126
0.112
0.100
0.091
0.084
0.077
0.072
0.067
0.063
0.059
0.056
0.053
0.050
0.048
0.046
0.044
0.036
0.030
0.026
0.023
0.021
25
0.122
0.108
0.098
0.089
0.082
0.076
0.070
0.066
0.062
0.058
0.055
0.052
0.049
0.047
0.045
0.043
0.035
0.030
0.026
0.023
0.021
30
0.118
0.105
0.095
0.087
0.080
0.074
0.069
0.065
0.061
0.057
0.054
0.051
0.049
0.047
0.044
0.043
0.035
0.030
0.026
0.023
0.021
Steel Framing at 24 in. on Center (18% Framing Factor)—includes framing for tracks, blocking, headers, and jamb and king studs
0.9
0.348
0.258
0.205
0.170
0.145
0.127
0.113
0.101
0.092
0.084
0.078
0.072
0.067
0.063
0.059
0.056
0.044
0.036
0.030
0.026
0.023
11
0.137
0.121
0.108
0.097
0.089
0.081
0.075
0.070
0.065
0.061
0.058
0.055
0.052
0.049
0.047
0.045
0.037
0.031
0.027
0.024
0.021
13
0.130
0.115
0.103
0.093
0.085
0.079
0.073
0.068
0.064
0.060
0.056
0.053
0.051
0.048
0.046
0.044
0.036
0.031
0.027
0.023
0.021
15
0.124
0.110
0.099
0.090
0.083
0.077
0.071
0.066
0.062
0.059
0.055
0.052
0.050
0.047
0.045
0.043
0.036
0.030
0.026
0.023
0.021
19
0.116
0.104
0.094
0.086
0.079
0.073
0.068
0.064
0.060
0.057
0.054
0.051
0.049
0.046
0.044
0.042
0.035
0.030
0.026
0.023
0.021
21
0.113
0.102
0.092
0.084
0.078
0.072
0.067
0.063
0.059
0.056
0.053
0.050
0.048
0.046
0.044
0.042
0.035
0.030
0.026
0.023
0.020
25
0.109
0.098
0.089
0.082
0.076
0.070
0.066
0.062
0.058
0.055
0.052
0.049
0.047
0.045
0.043
0.041
0.034
0.029
0.026
0.023
0.020
30
0.105
0.095
0.086
0.080
0.074
0.069
0.064
0.060
0.057
0.054
0.051
0.049
0.046
0.044
0.042
0.041
0.034
0.029
0.025
0.022
0.020
Steel Framing at 12 in. on Center (18% Framing Factor)—includes only studs at 12 in. on center and top and bottom tracks
0.9
0.348
0.258
0.205
0.170
0.145
0.127
0.113
0.101
0.092
0.084
0.078
0.072
0.067
0.063
0.059
0.056
0.044
0.036
0.030
0.026
0.023
11
0.137
0.121
0.108
0.097
0.089
0.081
0.075
0.070
0.065
0.061
0.058
0.055
0.052
0.049
0.047
0.045
0.037
0.031
0.027
0.024
0.021
13
0.130
0.115
0.103
0.093
0.085
0.079
0.073
0.068
0.064
0.060
0.056
0.053
0.051
0.048
0.046
0.044
0.036
0.031
0.027
0.023
0.021
15
0.124
0.110
0.099
0.090
0.083
0.077
0.071
0.066
0.062
0.059
0.055
0.052
0.050
0.047
0.045
0.043
0.036
0.030
0.026
0.023
0.021
19
0.116
0.104
0.094
0.086
0.079
0.073
0.068
0.064
0.060
0.057
0.054
0.051
0.049
0.046
0.044
0.042
0.035
0.030
0.026
0.023
0.021
21
0.113
0.102
0.092
0.084
0.078
0.072
0.067
0.063
0.059
0.056
0.053
0.050
0.048
0.046
0.044
0.042
0.035
0.030
0.026
0.023
0.020
25
0.109
0.098
0.089
0.082
0.076
0.070
0.066
0.062
0.058
0.055
0.052
0.049
0.047
0.045
0.043
0.041
0.034
0.029
0.026
0.023
0.020
30
0.105
0.095
0.086
0.080
0.074
0.069
0.064
0.060
0.057
0.054
0.051
0.049
0.046
0.044
0.042
0.041
0.034
0.029
0.025
0.022
0.020
Steel Framing at 16 in. on Center (14% Framing Factor)—includes only studs at 16 in. on center and top and bottom tracks
0.9
0.346
0.257
0.204
0.170
0.145
0.127
0.112
0.101
0.092
0.084
0.078
0.072
0.067
0.063
0.059
0.056
0.044
0.036
0.030
0.026
0.023
11
0.125
0.111
0.100
0.091
0.083
0.077
0.071
0.067
0.063
0.059
0.056
0.053
0.050
0.048
0.045
0.044
0.036
0.030
0.026
0.023
0.021
13
0.117
0.105
0.095
0.087
0.080
0.074
0.069
0.064
0.061
0.057
0.054
0.051
0.049
0.046
0.044
0.043
0.035
0.030
0.026
0.023
0.021
15
0.111
0.100
0.091
0.083
0.077
0.072
0.067
0.063
0.059
0.056
0.053
0.050
0.048
0.045
0.044
0.042
0.035
0.029
0.026
0.023
0.020
19
0.103
0.093
0.085
0.079
0.073
0.068
0.064
0.060
0.056
0.053
0.051
0.048
0.046
0.044
0.042
0.040
0.034
0.029
0.025
0.022
0.020
21
0.100
0.091
0.083
0.077
0.071
0.066
0.062
0.059
0.055
0.053
0.050
0.048
0.045
0.043
0.042
0.040
0.033
0.029
0.025
0.022
0.020
25
0.095
0.087
0.080
0.074
0.069
0.064
0.060
0.057
0.054
0.051
0.049
0.046
0.044
0.042
0.041
0.039
0.033
0.028
0.025
0.022
0.020
30
0.090
0.083
0.077
0.071
0.066
0.062
0.059
0.055
0.052
0.050
0.047
0.045
0.043
0.042
0.040
0.038
0.032
0.028
0.024
0.022
0.020
Steel Framing at 24 in. on Center (10% Framing Factor)—includes only studs at 24 in. on center and top and bottom tracks
0.9
0.344
0.256
0.204
0.169
0.145
0.126
0.112
0.101
0.092
0.084
0.077
0.072
0.067
0.063
0.059
0.056
0.044
0.036
0.030
0.026
0.023
11
0.113
0.101
0.092
0.084
0.078
0.072
0.067
0.063
0.059
0.056
0.053
0.050
0.048
0.046
0.044
0.042
0.035
0.030
0.026
0.023
0.020
13
0.104
0.094
0.086
0.079
0.073
0.068
0.064
0.060
0.057
0.054
0.051
0.049
0.046
0.044
0.042
0.041
0.034
0.029
0.025
0.022
0.020
15
0.098
0.089
0.082
0.076
0.070
0.066
0.062
0.058
0.055
0.052
0.049
0.047
0.045
0.043
0.041
0.040
0.033
0.028
0.025
0.022
0.020
19
0.088
0.081
0.075
0.070
0.065
0.061
0.058
0.055
0.052
0.049
0.047
0.045
0.043
0.041
0.040
0.038
0.032
0.028
0.024
0.022
0.019
21
0.085
0.078
0.073
0.068
0.063
0.060
0.056
0.053
0.051
0.048
0.046
0.044
0.042
0.040
0.039
0.037
0.031
0.027
0.024
0.021
0.019
25
0.080
0.074
0.069
0.064
0.060
0.057
0.054
0.051
0.049
0.046
0.044
0.042
0.041
0.039
0.038
0.036
0.031
0.027
0.024
0.021
0.019
30
0.075
0.070
0.065
0.061
0.058
0.055
0.052
0.049
0.047
0.045
0.043
0.041
0.039
0.038
0.037
0.035
0.030
0.026
0.023
0.021
0.019
Cavity Insulation Value
Base Wall U-factor at Framing
Overall U-Factor for Assembly of Base Wall Plus Continuous Insulation (Uninterrupted by Framing or Furring)
Rated R-Value of Continuous Insulation
0.18
0.35
0.53
0.70
0.88
1.06
1.23
1.41
1.59
1.76
1.94
2.11
2.29
2.47
2.64
3.52
4.40
5.28
6.16
7.04
Steel Framing at 300 mm on Center (25% Framing Factor)—includes framing for tracks, blocking, headers, and jamb and king studs
0.16
1.99
1.47
1.17
0.97
0.83
0.72
0.64
0.58
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.25
0.20
0.17
0.15
0.13
1.94
0.89
0.77
0.68
0.60
0.55
0.50
0.46
0.42
0.39
0.37
0.35
0.33
0.31
0.29
0.28
0.27
0.21
0.18
0.16
0.14
0.12
2.29
0.85
0.74
0.65
0.59
0.53
0.49
0.45
0.41
0.39
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.21
0.18
0.15
0.14
0.12
2.64
0.82
0.72
0.64
0.57
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.30
0.28
0.27
0.26
0.21
0.18
0.15
0.14
0.12
3.35
0.78
0.69
0.61
0.55
0.50
0.46
0.43
0.40
0.37
0.35
0.33
0.31
0.29
0.28
0.27
0.25
0.21
0.18
0.15
0.13
0.12
3.70
0.76
0.67
0.60
0.54
0.50
0.46
0.42
0.39
0.37
0.35
0.33
0.31
0.29
0.28
0.27
0.25
0.21
0.18
0.15
0.13
0.12
4.40
0.74
0.66
0.59
0.53
0.49
0.45
0.42
0.39
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.21
0.17
0.15
0.13
0.12
5.28
0.72
0.64
0.58
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.20
0.17
0.15
0.13
0.12
Steel Framing at 400 mm on Center (22% Framing Factor)—includes framing for tracks, blocking, headers, and jamb and king studs
0.16
1.98
1.47
1.17
0.97
0.83
0.72
0.64
0.58
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.25
0.20
0.17
0.15
0.13
1.94
0.84
0.73
0.65
0.58
0.53
0.48
0.45
0.41
0.38
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.21
0.18
0.15
0.14
0.12
2.29
0.80
0.70
0.63
0.56
0.51
0.47
0.43
0.40
0.38
0.35
0.33
0.31
0.30
0.28
0.27
0.26
0.21
0.18
0.15
0.13
0.12
2.64
0.77
0.68
0.61
0.55
0.50
0.46
0.43
0.40
0.37
0.35
0.33
0.31
0.29
0.28
0.27
0.25
0.21
0.18
0.15
0.13
0.12
3.35
0.73
0.65
0.58
0.53
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.20
0.17
0.15
0.13
0.12
3.70
0.71
0.63
0.57
0.52
0.48
0.44
0.41
0.38
0.36
0.33
0.32
0.30
0.28
0.27
0.26
0.25
0.20
0.17
0.15
0.13
0.12
4.40
0.69
0.62
0.56
0.51
0.46
0.43
0.40
0.37
0.35
0.33
0.31
0.30
0.28
0.27
0.26
0.24
0.20
0.17
0.15
0.13
0.12
5.28
0.67
0.60
0.54
0.49
0.45
0.42
0.39
0.37
0.34
0.32
0.31
0.29
0.28
0.26
0.25
0.24
0.20
0.17
0.15
0.13
0.12
Steel Framing at 600 mm on Center (18% Framing Factor)—includes framing for tracks, blocking, headers, and jamb and king studs
0.16
1.97
1.46
1.16
0.97
0.83
0.72
0.64
0.57
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.25
0.20
0.17
0.15
0.13
1.94
0.78
0.68
0.61
0.55
0.50
0.46
0.43
0.40
0.37
0.35
0.33
0.31
0.29
0.28
0.27
0.25
0.21
0.18
0.15
0.13
0.12
2.29
0.74
0.65
0.58
0.53
0.48
0.45
0.41
0.39
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.20
0.17
0.15
0.13
0.12
2.64
0.70
0.63
0.56
0.51
0.47
0.43
0.40
0.38
0.35
0.33
0.31
0.30
0.28
0.27
0.26
0.25
0.20
0.17
0.15
0.13
0.12
3.35
0.66
0.59
0.53
0.49
0.45
0.42
0.39
0.36
0.34
0.32
0.31
0.29
0.28
0.26
0.25
0.24
0.20
0.17
0.15
0.13
0.12
3.70
0.64
0.58
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.24
0.20
0.17
0.15
0.13
0.12
4.40
0.62
0.56
0.51
0.47
0.43
0.40
0.37
0.35
0.33
0.31
0.30
0.28
0.27
0.26
0.24
0.23
0.19
0.17
0.14
0.13
0.12
5.28
0.59
0.54
0.49
0.45
0.42
0.39
0.36
0.34
0.32
0.31
0.29
0.28
0.26
0.25
0.24
0.23
0.19
0.16
0.14
0.13
0.11
Cavity Insulation Value
Base Wall U-factor at Framing
Overall U-Factor for Assembly of Base Wall Plus Continuous Insulation (Uninterrupted by Framing or Furring)
Rated R-Value of Continuous Insulation
0.18
0.35
0.53
0.70
0.88
1.06
1.23
1.41
1.59
1.76
1.94
2.11
2.29
2.47
2.64
3.52
4.40
5.28
6.16
7.04
Steel Framing at 300 mm on Center (18% Framing Factor)—includes only studs at 300 mm on center and top and bottom tracks
0.16
1.97
1.46
1.16
0.97
0.83
0.72
0.64
0.57
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.25
0.20
0.17
0.15
0.13
1.94
0.78
0.68
0.61
0.55
0.50
0.46
0.43
0.40
0.37
0.35
0.33
0.31
0.29
0.28
0.27
0.25
0.21
0.18
0.15
0.13
0.12
2.29
0.74
0.65
0.58
0.53
0.48
0.45
0.41
0.39
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.20
0.17
0.15
0.13
0.12
2.64
0.70
0.63
0.56
0.51
0.47
0.43
0.40
0.38
0.35
0.33
0.31
0.30
0.28
0.27
0.26
0.25
0.20
0.17
0.15
0.13
0.12
3.35
0.66
0.59
0.53
0.49
0.45
0.42
0.39
0.36
0.34
0.32
0.31
0.29
0.28
0.26
0.25
0.24
0.20
0.17
0.15
0.13
0.12
3.70
0.64
0.58
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.24
0.20
0.17
0.15
0.13
0.12
4.40
0.62
0.56
0.51
0.47
0.43
0.40
0.37
0.35
0.33
0.31
0.30
0.28
0.27
0.26
0.24
0.23
0.19
0.17
0.14
0.13
0.12
5.28
0.59
0.54
0.49
0.45
0.42
0.39
0.36
0.34
0.32
0.31
0.29
0.28
0.26
0.25
0.24
0.23
0.19
0.16
0.14
0.13
0.11
Steel Framing at 400 mm on Center (14% Framing Factor)—includes only studs at 400 mm on center and top and bottom tracks
0.16
1.96
1.46
1.16
0.96
0.82
0.72
0.64
0.57
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.25
0.20
0.17
0.15
0.13
1.94
0.71
0.63
0.57
0.52
0.47
0.44
0.41
0.38
0.36
0.33
0.32
0.30
0.28
0.27
0.26
0.25
0.20
0.17
0.15
0.13
0.12
2.29
0.67
0.60
0.54
0.49
0.45
0.42
0.39
0.37
0.34
0.32
0.31
0.29
0.28
0.26
0.25
0.24
0.20
0.17
0.15
0.13
0.12
2.64
0.63
0.57
0.52
0.47
0.44
0.41
0.38
0.36
0.33
0.32
0.30
0.28
0.27
0.26
0.25
0.24
0.20
0.17
0.15
0.13
0.12
3.35
0.58
0.53
0.48
0.45
0.41
0.39
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.24
0.23
0.19
0.16
0.14
0.13
0.11
3.70
0.57
0.51
0.47
0.44
0.40
0.38
0.35
0.33
0.31
0.30
0.28
0.27
0.26
0.25
0.24
0.23
0.19
0.16
0.14
0.13
0.11
4.40
0.54
0.49
0.45
0.42
0.39
0.36
0.34
0.32
0.31
0.29
0.28
0.26
0.25
0.24
0.23
0.22
0.19
0.16
0.14
0.12
0.11
5.28
0.51
0.47
0.43
0.40
0.38
0.35
0.33
0.31
0.30
0.28
0.27
0.26
0.25
0.24
0.23
0.22
0.18
0.16
0.14
0.12
0.11
Steel Framing at 600 mm on Center (10% Framing Factor)—includes only studs at 600 mm on center and top and bottom tracks
0.16
1.95
1.45
1.16
0.96
0.82
0.72
0.64
0.57
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.25
0.20
0.17
0.15
0.13
1.94
0.64
0.57
0.52
0.48
0.44
0.41
0.38
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.24
0.20
0.17
0.15
0.13
0.12
2.29
0.59
0.54
0.49
0.45
0.42
0.39
0.36
0.34
0.32
0.31
0.29
0.28
0.26
0.25
0.24
0.23
0.19
0.16
0.14
0.13
0.11
2.64
0.55
0.51
0.46
0.43
0.40
0.37
0.35
0.33
0.31
0.30
0.28
0.27
0.26
0.24
0.23
0.22
0.19
0.16
0.14
0.13
0.11
3.35
0.50
0.46
0.43
0.40
0.37
0.35
0.33
0.31
0.29
0.28
0.27
0.25
0.24
0.23
0.22
0.22
0.18
0.16
0.14
0.12
0.11
3.70
0.48
0.45
0.41
0.38
0.36
0.34
0.32
0.30
0.29
0.27
0.26
0.25
0.24
0.23
0.22
0.21
0.18
0.15
0.14
0.12
0.11
4.40
0.45
0.42
0.39
0.37
0.34
0.32
0.31
0.29
0.28
0.26
0.25
0.24
0.23
0.22
0.21
0.21
0.17
0.15
0.13
0.12
0.11
5.28
0.43
0.40
0.37
0.35
0.33
0.31
0.29
0.28
0.27
0.25
0.24
0.23
0.22
0.22
0.21
0.20
0.17
0.15
0.13
0.12
0.11
a. Refer to Section A9.2(b)(3)(i) for calculation method used to generate table values.
b. The cavity insulation rated RSI-value of 0.16 corresponds to no cavity insulation.
Section A10.2.1 Thermal bridge details.
Section A10.2.1- Add new section A10.2.1 to read as follows:
A10.2.1 Thermal bridge details.
Psi-factors and chi-factors for thermal bridges shall be determined in accordance with Normative Appendix A, Section A10. The following intersections shall be evaluated for thermal bridges and be detailed in construction documents:
1. Structural framing and members.
2. Cladding attachment systems
3. Assembly intersections:
a. Roof edge, parapet;
b. Intermediate floor to wall intersection;
c. Intermediate floor balcony or overhang to opaque wall intersection;
d. Intermediate floor balcony in contact with vertical fenestration;
e. Cladding support; and
f. Wall to vertical fenestration intersection.
Details shall include the total length of each linear thermal bridge, corresponding psi-factors, and source. Details shall include point thermal bridges, including their cross-sectional area and quantity of each type, corresponding chi-factors, and source.
Exception: HVAC or electrical system point thermal bridges totaling less than 12 square inches (7741.9 mm
2
) of cross-sectional area at exposure.
Normative Appendix C Methodology for Building Envelope Trade-Off Option in Section 5.6.
Section C3.5.5.4 Thermal Bridges.
Section C3.5.5.4 – Revise Section C3.5.5.4 to read as follows:
C3.5.5.4 Thermal Bridges. Linear and point thermal bridges in the proposed design shall be 1 of the following:
a. Not modeled where option (a) or (c) is selected in Section C1.2.7.
b. Entered as individual thermal bridge inputs of length or count where option (b) is selected in Section C1.2.7 and addressed as follows:
1. Individual thermal bridges in the proposed design that are indicated to comply with the requirements of Sections 5.5.5.1 through 5.5.5.5 shall be modeled with the user-defined psi-factor or chi-factors or the default values from Table A10.1.
2. Individual thermal bridges in the proposed design that are indicated to not comply with the requirements of Sections 5.5.5.1 through 5.5.5.5 shall be modeled with the user-defined psi-factor or chi-factors or the unmitigated values from Table A10.1.
3. Individual thermal bridges in the proposed design that are indicated to be not applicable with the requirements of Sections 5.5.5.1 through 5.5.5.5 need not be modeled.
Normative Appendix G Performance Rating Method.
Section G1.4 Energy Modeler Qualifications.
Section G1.4 – Add new Section G1.4 to read as follows:
G1.4 Energy Modeler Qualifications. Energy models shall be created by persons qualified by education and training to perform such work. The submitted modeling documentation shall include the name, affiliation, credentials, and contact information of either a registered design professional with a minimum of two years of experience in modeling buildings of similar size and complexity or an individual with an active certification from ASHRAE as a Building Energy Modeling Professional (BEMP) that completed or supervised the energy modeling.
(L.L. 2026/047, 1/17/2026, retro. eff. 12/31/2025)
Collected 2026-09-06T02:48:57Z. Source file · JSON