OBC VOLUME 2 · SUPPLEMENTARY STANDARD SB-10Updated for the 2024 Ontario Building Code
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SB-10 — Energy Efficiency Requirements
Supplementary Standard SB-10 ("Energy Efficiency Requirements") forms part of Volume 2 of the 2024 Ontario Building Code. The full text is reproduced below with a linked table of contents.
On this page:
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2024MMA Supplementary Standard SB-10
SB-10 Energy Efficiency Requirements
Division 1
General
1.1.General
1.1.1. Application of Supplementary Standard SB-10 ......................................................................................................................................... 3
1.2.Terms and Abbreviations
1.2.1. Definitions of Words and Phrases ............................................................................................................................................................... 4
1.2.2. Symbols and Other Abbreviations .............................................................................................................................................................. 4
1.3.Referenced Documents and Organizations
1.3.1. Referenced Documents ................................................................................................................................................................................ 5
1.3.2. Abbreviations ................................................................................................................................................................................................ 6
Division 1 SB-10 • Page 1
2024MMA Supplementary Standard SB-10
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2024MMA Supplementary Standard SB-10
Division 1
General
Section 1.1. General
1.1.1.1.Application
e1 (1) This Supplementary Standard applies to the energy efficiency design and construction of buildings required to
comply with Sentence 12.2.1.2.(2) and Subsections 12.2.2. and 12.2.3. of Division B of the Building Code.
(2) The energy efficiency of existing buildings shall comply with
(a) Part 10 of Division B of the Building Code with respect to change of use, or
(b) Part 11 of Division B of the Building Code for renovation.
e1 1.1.1.2. Reserved
e1 1.1.1.3. Energy Efficiency Design
(1) Except as permitted in Sentence (2), the energy efficiency design and construction of buildings required to comply
with Sentence 12.2.1.2.(2) of Division B of the Building Code shall comply with Division 3 of this Supplementary
Standard.
(2) The energy efficiency of a building or part of a building may conform to the design requirements of Division 5 of
this Supplementary Standard, if the building or part of the building,
(a) is within the scope of Part 9 of Division B of the Building Code,
(b) does not contain a residential occupancy,
(c) does not use electric space heating, and
(d) is intended for occupancy on a continuing basis during the winter months.
1.1.1.4.Internal Cross-References
(1) If a provision of this Supplementary Standard contains a reference to another provision of this Supplementary
Standard but no Division is specified, both provisions are in the same Division of this Supplementary Standard.
Division 1 SB-10 • Page 3
2024MMA Supplementary Standard SB-10
Section 1.2. Terms and Abbreviations
1.2.1.1.Non-Defined Terms
(1) Definitions of words and phrases used in this Supplementary Standard that are not included in the list of definitions
in Articles 1.4.1.2. and 1.4.1.3. of Division A of the Building Code and are not defined in another provision of the Code
shall have the meanings that are commonly assigned to them in the context in which they are used, taking into account
the specialized use of terms by the various trades and professions to which the terminology applies.
1.2.1.2.Defined Terms
(1) Each of the words and terms in italics in this Supplementary Standard has the same meaning as in subsection 1(1)
of the Building Code Act, 1992 or Clause 1.4.1.2.(1) of Division A of the Building Code.
(2) In this Supplementary Standard,
Carbon dioxide equivalent (CO2e) means a measure used to compare the impact of various greenhouse gases based on
their global warming potential.
1.2.2.1.Symbols and Other Abbreviations
(1) Where used in this Supplementary Standard, a symbol or abbreviation listed in Column 2 of Table 1.4.2.1. of
Division A of the Building Code has the meaning listed opposite it in Column 3.
(2) The abbreviations listed in Column 2 of Table 1.2.2.1. also apply to this Supplementary Standard and have the
meaning listed opposite it in Column 3.
Table 1.2.2.1.
Symbols and Abbreviations
Forming Part of Sentence 1.2.2.1.(2)
Item Abbreviation Meaning
1 CO2e carbon dioxide equivalent
2 GJ gigajoules
3 kWh kilowatt-hours
4 LPG liquified petroleum gas
Column 1 2 3
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2024MMA Supplementary Standard SB-10
Section 1.3. Referenced Documents and Organizations
1.3.1.1.Effective Date
(1) Except as provided in Table 1.3.1.2. of this Supplementary Standard, the documents referenced in this
Supplementary Standard shall include all amendments, revisions and supplements effective to June 26, 2015.
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
1.3.1.2.Applicable Editions
(1) Unless otherwise specified in this Supplementary Standard, documents referenced in this Standard shall be the
editions designated in Column 2 of Table 1.3.1.2. of Division B of the Building Code.
(2) Where ANSI/ASHRAE/IES Standard 90.1, “Energy Standard for Buildings Except Low-Rise Residential
Buildings” is referenced in this Supplementary Standard, it shall be the edition designated in Table 1.3.1.2.
e1 (3) Where CCBFC NRCC 38730, “Model National Energy Code of Canada for Buildings” or CCBFC NRCC 54435
or 56191 , “National Energy Code of Canada for Buildings” is referenced in this Supplementary Standard, it shall be the
edition designated in Table 1.3.1.2.
Table 1.3.1.2.
Referenced Documents
Forming Part of Sentences 1.3.1.2.(1) to (3)
Supplementary Standard
Issuing Agency Document Number Title of Document
Reference
90.1-2013 (including
Energy Standard for Buildings Except Low-Rise Division 3
ANSI/ASHRAE/IES amendments issued to
Residential Buildings Chapters 1 and 2 of Division 3
June 26, 2015)
ANSI/ASHRAE/ Standard for the Design of High-Performance Green Division 3
189.1-2014
USGBC/IES Buildings Except Low-Rise Residential Buildings Chapter 1 of Division 3
and 1.1.1.4.(5) of Chapter 1 and
CSA CAN/CSA-A440.2-14 Fenestration Energy Performance 1.1.1.6 (8) of Chapter 3 of
Division 3
Test Methods, Marking Requirements, and Energy 1.1.1.7.(5) of Chapter 1 of
CSA C390-2010
Efficiency Levels for Three-Phase Induction Motors Divisions 3
Division 1
CCBFC NRCC 56191 -2015 National Energy Code of Canada for Buildings
Chapters 1 and 3 of Division 3
1.1.1.4.(5) of Chapter 1 and
Procedure for Determining Fenestration Product
NFRC NFRC 100-2014 1.1.1.6.(8) of Chapter 3 of
U-factors
Division 3
Procedure for Determining Fenestration Product 1.1.1.4.(5) of Chapter 1 and
NFRC NFRC 200-2014 Solar Heat Gain Coefficient and Visible 1.1.1.6.(8) of Chapter 3 of
Transmittance at Normal Incidence Division 3
Column 1 2 3 4
Division 1 SB-10 • Page 5
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1.3.2.1.Abbreviations of Proper Names
(1) Where used in this Supplementary Standard, abbreviations of proper names listed in Column 1 of Table 1.3.2.1. in
Division B of the Building Code shall have the meaning assigned opposite it in Column 2.
e1 (2) For the purpose of this Supplementary Standard,
(a) reserved
(b) 2013 ANSI/ASHRAE/IES 90.1, means ANSI/ASHRAE/IES Standard 90.1-2013, “Energy Standard for Buildings
Except Low-Rise Residential Buildings”,
(c) 2014 ANSI/ASHRAE/USGBC/IES Standard 189.1 means ANSI/ASHRAE/USGBC/IES Standard 189.1-2014,
“Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings”,
(d) reserved,
(e) reserved, and
(f) 2015 NECB means CCBFC NRCC 56191-2015, “National Energy Code of Canada for Buildings”.
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2024MMA Supplementary Standard SB-10
e1 Division 2
Reserved
Division 1 SB-10 • Page 7
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Division 3
e1 Energy Efficiency Design
Chapter 1 General
1.1.General
1.1.1. Scope .............................................................................................................................................................................................................. 11
1.1.2. Energy Efficiency .......................................................................................................................................................................................... 11
1.1.3. Chapter 2 ....................................................................................................................................................................................................... 13
1.1.4. Chapter 3 ....................................................................................................................................................................................................... 13
1.2Application
1.2.1. Application of Articles 1.1.2.1. to 1.1.2.3. ................................................................................................................................................... 14
1.3.Climatic Zones
1.3.1. Climatic Zone Numbers ................................................................................................................................................................................ 15
Chapter 2 Additional Requirements to 2013 ANSI/ASHRAE/IES Standard 90.1
1.1.Changes and Additional Requirements
1.1.1. Changes and Additional Requirements to 2013 ANSI/ASHRAE/IES 90.1 ................................................................................................ 16
Chapter 3 Additional Requirements to the 2015 NECB
1.1.Changes and Additional Requirements
1.1.1. Changes and Additional Requirements to the 2015 NECB ....................................................................................................................... 37
Division 3 SB-10 • Page 9
2024MMA Supplementary Standard SB-10
FOREWORD
Division 3 of this Supplementary Standard contains requirements for the design and construction of buildings for which a
permit has been applied for after December 31, 2016. In this updated Supplementary Standard, the existing sample
compliance paths in this Division have been replaced by new compliance paths. The compliance paths are based on
contemporary energy codes and standards and contain additional requirements to achieve, on average, a 13 percent
improvement over the efficiency level required by Sentence 12.2.1.1.(2) of Division B of O. Reg. 332/12 (2012 Building
Code) as it read on December 31, 2024. Division 3 contains a transition provision and revised CO2e factors in Chapter 1 as
well as the following three compliance paths based on:
1. ANSI/ASHRAE/IES Standard 90.1-2013, “Energy Standard for Buildings Except Low-Rise Residential Buildings”, and
additional requirements introduced through Chapter 2,
2. ANSI/ASHRAE/USGBC/IES Standard 189.1-2014, “Standard for the Design of High-Performance Green Buildings
Except Low-Rise Residential Buildings”, and
3. CCBFC NRCC 56191, “2015 National Energy Code of Canada for Buildings” and additional requirements introduced
through Chapter 3.
Division 3 also describes limitations on peak electric demand and annual carbon dioxide emissions.
Division 3 outlines the modifications made to these documents which are generally enhancements to the building envelope,
mechanical equipment, lighting and heat recovery provisions of 2013 ANSI/ASHRAE/IES 90.1 and the 2015 NECB.
These modifications can be found in Chapters 2 and 3, respectively. Certain buildings and parts of buildings are exempted
from the energy efficiency provisions in this Division.
Compliance with this Division does not necessarily ensure that the actual annual energy consumption or actual annual
energy cost of a building is less than or equal to the theoretical values arrived at using the building energy cost budget
method of 2013 ANSI/ASHRAE/IES 90.1 or performance method of the 2015 NECB. Factors such as weather,
workmanship, depreciation of the thermal resistance of building materials, occupant/user lifestyle, building operation and
maintenance impact on the actual energy consumption of a building, while simulation assumption and software used may
affect the theoretical calculations.
Summary of the Contents of Division 3
Chapter 1: General
This Chapter contains the application, energy efficiency design requirements and exemptions to SB-10. It also contains
climatic zones applicable to Ontario locations.
Chapter 2: Additional Requirements to 2013 ANSI/ASHRAE/IES 90.1. This Chapter contains additions and/or
substitutions to 2013 ANSI/ASHRAE/IES 90.1.
Chapter 3: Additional Requirements to the 2015 NECB. This Chapter contains additions and/or substitutions to the
2015NECB.
Recommended Resource Material: ANSI/ASHRAE/IES Standard 90.1-2013 User’s Manual.
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Division 3 SB-10 • Page 11
2024MMA Supplementary Standard SB-10
Division 3
Chapter 1
General
Section 1.1. General
e1 1.1.1. Reserved
1.1.2. Energy Efficiency Design, Carbon Dioxide Equivalents and
Peak Electric Demand
1.1.2.1.Energy Efficiency Design
(1) Except as provided in Sentence (2) and Article 1.2.1.1., the energy efficiency of all buildings shall be designed to
achieve the energy efficiency levels attained by conforming to
(a) 2013 ANSI/ASHRAE/IES 90.1 and Chapter 2,
(b) 2015 NECB and Chapter 3, or
(c) Section 7 “Energy Efficiency” of 2014 ANSI/ASHRAE/USGBC/IES 189.1, excluding Sections 7.2.b, 7.4.7.3, 7.4.8
and 7.5.
(2) Energy efficiency requirements do not apply to buildings or parts of buildings described in Article 1.2.1.1.
1.1.2.2.Carbon Dioxide Equivalents
(1) The annual CO2e emission level from a building shall be determined in accordance with good engineering practice
using the CO2e emission factors listed in Table 1.1.2.2.
(2) The annual CO2e emission level from a building required to comply with Clause 1.1.2.1.(1) (a), shall not exceed the
level achieved by complying with Sections 5 to 10 of 2013 ANSI/ASHRAE/IES 90.1 and Chapter 2.
(3) The annual CO2e emission level from a building required to comply with Clause 1.1.2.1.(1) (b), shall not exceed the
level achieved by complying with Sections 1 to 7 of the 2015 NECB and Chapter 3.
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2024MMA Supplementary Standard SB-10
(4) The annual CO2e emission level from a building required to comply with Clause 1.1.2.1.(1) (c), shall not exceed the
level achieved by complying with Sections 7.1, 7.2.a, 7.3 and 7.4 of 2014 ANSI/ASHRAE/USGBC/IES Standard 189.1.
(5) Where the energy efficiency compliance of a building is achieved using the Energy Cost Budget Method of 2013
ANSI/ASHRAE/IES 90.1 and Chapter 2, or Building Energy Performance Compliance Path of the 2015 NECB and
Chapter 3:
(a) the annual design CO2e emission level from the building shall be calculated, and
(b) the annual design CO2e emission level of the proposed building shall not exceed the annual CO2e emission level of
the corresponding baseline or reference building using the CO2e emission factors listed in Table 1.1.2.2.
Table 1.1.2.2.
CO2e Emission Factors
Forming Part of Sentences 1.1.2.2.(1) and (5)
Building Energy Source Emission Factor
Stationary Sources
Electricity (average for 2014) 0.050 kgCO2e / kWh
Natural Gas 1.899 kgCO2e / m3
Propane 1.548 kgCO2e / L
Heating Oil 2.755 kgCO2e / L
Column 1 2
Notes to Table 1.1.2.2.:
1. Factors are expressed in units of CO2 equivalent (CO2e) so as to encompass the global warming effects of all relevant
greenhouse gases (CO2, CH4, and N2O).
2. Non-CO2 emission components are technology dependent and vary by application; the above factors assume the most common
and likely applications.
3. Electricity emission factor is an average consumption intensity factor for the year 2014; electricity factors are subject to change on
an annual basis depending on the mix of generation in a particular year. Use the latest available published data.
4. Factors are expressed in their native units (e.g. kWh, m3, or litre) and conversion to other common units (e.g. kgCO2e / GJ) is
possible through calculation; a suggested list of unit conversions is available from the National Energy Board.
5. The table is not comprehensive or exhaustive and not necessarily representative of every energy source that may be encountered
in a project; other factors may be used on a case-by-case basis with appropriate methodological justification.
6. Emission factors are sourced from Environment and Climate Change Canada’s 2016 National Inventory Report (NIR) unless
otherwise noted and values have been rounded; further information on emission factors can be found in Annex 6 of Part 2 of the
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
2016NIR which can be downloaded.
Division 3 SB-10 • Page 13
1.1.2.3.Peak Electric Demand
(1) The peak electric demand of a building required to comply with Clause 1.1.2.1.(1) (a), shall not exceed the level
achieved by complying with Sections 5 to 10 of 2013 ANSI/ASHRAE/IES 90.1 and Chapter 2.
(2) The peak electric demand of a building required to comply with Clause 1.1.2.1.(1) (b), shall not exceed the level
achieved by complying with Sections 1 to 7 of the 2015 NECB and Chapter 3.
(3) The peak electric demand of a building required to comply with Clause 1.1.2.1.(1) (c), shall not exceed the level
achieved by complying with Sections 7.1 to 7.4.7.5 of 2014 ANSI/ASHRAE/USGBC/IES Standard 189.1.
(4) Except as provided in Sentence (5), where the energy efficiency compliance of a building is achieved by using the
Energy Cost Budget Method of 2013 ANSI/ASHRAE/IES 90.1 and Chapter 2, or the Building Energy Performance
Compliance Path of the 2015 NECB and Chapter 3:
(a) the peak electric demand of a building shall be calculated, and
(b) the peak electric demand of the proposed building shall not exceed the peak electric demand of the corresponding
budget or reference building.
(5) A building is deemed to comply with Sentences (1) to (4), if the building design meets the applicable prescriptive
requirements set in Article 1.1.2.1. for the energy efficiency of
(a) the cooling equipment, fan power limitations for cooling and ventilation systems, and interior lighting power
density, if the building’s peak electric demand occurs in summer, or
(b) the space and water heating equipment, fans, pumps and interior lighting power density, if the building’s peak
electric demand occurs in winter.
1.1.3.1.Chapter 2
(1) Chapter 2 contains additional requirements and changes to 2013 ANSI/ASHRAE/IES 90.1 and applies where
compliance with energy efficiency requirements is achieved in accordance with Clause 1.1.2.1.(1)(a).
1.1.4.1.Chapter 3
(1) Chapter 3 contains additional requirements and changes to the 2015 NECB and applies where compliance with
energy efficiency requirements is achieved in accordance with Clause 1.1.2.1.(1)(b).
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2024MMA Supplementary Standard SB-10
Section 1.2. Application
1.2.1.1.Exceptions
(1) The requirements of Articles 1.1.2.1. to 1.1.2.3. of this Chapter do not apply to
(a) a building or part of a building of residential occupancy that is within the scope of Part 9 of Division B of the
Building Code,
(b) construction trailers, tents and air-supported structures,
(c) a building or part of a building where the environmental condition within the building is governed by the process,
operation of the building or permanent openings to the outdoors or to unconditioned environments,
(d) a building or part of a building where it can be shown that meeting the requirements of Article 1.1.2.1. does not
conserve any energy,
(e) equipment or processes that use energy for manufacturing, industrial and commercial purposes, and
(f) occupancies listed in Table 1.2.1.1.
Table 1.2.1.1.
Occupancies Exempt from Compliance with Articles 1.1.2.1 to 1.1.2.3.
Forming Part of Sentence 1.2.1.1.(1)
GROUP A, DIVISION 4 GROUP F, DIVISION 1 GROUP F, DIVISION 2 GROUP F, DIVISION 3
Amusement Park Structures Bulk Plants for Flammable Dry Cleaning Establishments Creameries
(not elsewhere classified) Liquids not using flammable or Power Plants
Bleachers Bulk Storage Warehouses for explosive solvents or cleaners Open-air Parking Garages
Grandstands Hazardous Substances Electrical Substations Pumping Stations
Reviewing Stands Cereal Mills Helicopter Landing Areas on
Stadia Chemical Manufacturing or Roofs
GROUP C Processing Plants Laundries, except self-service
Distilleries Planing Mills
Part 9 Buildings(1) Dry Cleaning Plants Printing Plants
Camps for Housing Workers Feed Mills Repair Garages
(Part 3 and 9 Buildings) Flour Mills Woodworking Factories
Recreational Camps Grain Elevators
Lacquer Factories
Paint, Varnish and Pyroxylin
Product Factories
Rubber Processing Plants
Spray Painting Operations
Waste Paper Processing Plants
Column 1 2 3 4
Notes to Table 1.2.1.1.:
(1) Part 9 buildings are exempt from compliance with Articles 1.1.2.1. to 1.1.2.3. where the energy efficiency design conforms to Division
5 of this Supplementary Standard.
(2) The list is not intended to be exhaustive and other exemptions may be made in accordance with Article 1.2.1.1.
Division 3 SB-10 • Page 15
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2024MMA Supplementary Standard SB-10
(2) The following buildings or parts of buildings need not to comply with building envelope requirements:
(a) any building space which uses energy for space conditioning at a rate less than 12 W/m² under peak conditions,
(b) warehouses and storage rooms where the design indoor temperature does not exceed 10°C,
(c) except conditioned spaces of buildings exposed to unheated storage garages and unheated storage rooms, unheated
storage garages and unheated storage rooms, and
(d) where part of a single enclosed space is heated.
e1 (3) Where specifically noted in this Supplementary Standard or documents referenced in Sentence 12.2.1.2.(2) of
Division B of the Building Code, certain other buildings or elements of buildings shall be exempt.
Section 1.3. Climatic Zones
1.3.1.1.Determination of Climatic Zone Numbers
e1 (1) Except as permitted in Sentence (2), the climatic zone number of a location shall be determined in accordance with
Table 1.3.1.1. based on the corresponding heating degree-days (HDD) for locations found in Table 2 of MMAH
Supplementary Standard SB-1, “Climatic and Seismic Data”.
e1 (2) For locations not listed in Table 2 of MMAH Supplementary Standard SB-1, “Climatic and Seismic Data”, the
heating degree-days and climatic data of the climatologically closest location is permitted to be used.
Table 1.3.1.1.
Climatic Zone Numbers for Ontario
Forming Part of Sentence 1.3.1.1.(1)
(This Table is to be used in conjunction with Tables SB 5.5-5 to SB 5.5-7)
Climatic Zone Number Thermal Criteria
Zone 5 HDD18 < 4000°C
Zone 6 4000°C ≤ HDD18 < 5000°C
Zone 7 HDD18 ≥ 5000°C
Column 1 2
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2024MMA Supplementary Standard SB-10
Chapter 2
Additional Requirements to
2013ANSI/ASHRAE/IES 90.1
Section 1.1. Changes and Additional Requirements
1.1.1.1.Application of Chapter 2
(1) Where compliance with energy efficiency requirements is achieved in accordance with Clause 1.1.2.1.(1)(a) of
Chapter 1, energy efficiency of the building is required to conform to this Chapter.
1.1.1.2. Section 4 “Administration and Compliance” of 2013 ANSI/ASHRAE/IES
90.1
(1) Sections 4.2.1.1 to 4.2.1.3 of 2013 ANSI/ASHRAE/IES 90.1 are replaced with the following:
4.2.1.1 New Buildings. New buildings and additions to existing buildings shall comply with provisions of either
Sections 5 to 10 or Section 11.
4.2.1.2 Reserved.
4.2.1.3 Existing Buildings. Change of use of existing buildings shall conform to Part 10 of Division B of the
Building Code and renovation of existing buildings shall conform to Part 11 of Division B of the Building Code.
1.1.1.3.Climatic Zones
(1) Climatic zone numbers shall be determined in accordance with Section 1.3. of Chapter 1.
1.1.1.4. Section 5 “Building Envelope” of 2013 ANSI/ASHRAE/IES 90.1
(1) Section 5.4.3.1.A shall be added to Section 5.4.3 “Air Leakage” of 2013 ANSI/ASHRAE/IES 90.1.
5.4.3.1.A Air Barrier Materials, Assemblies and Systems
(1) The air barrier materials, assemblies and systems that are in conformance with Part 5 of Division B of the
Building Code shall be deemed to be in compliance with Section 5.4.3.1.3 and Section 5.4.3.2.
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2024MMA Supplementary Standard SB-10
(2) Sections 5.5.1 and 5.5.2 shall be replaced with Sections 5.5.1.(1) through 5.5.1.(7) and Sections 5.5.3.5.1, 5.5.3.5.2,
5.5.3.7, and 5.5.3.8 shall be added to Section 5.5 of 2013 ANSI/ASHRAE/IES 90.1.
5.5.1 Exterior Building Envelope
(1) Where electric space heating is used, the building envelope shall comply with the requirements of Table
SB 5.5-7 of this Supplementary Standard, regardless of its climatic location.
(2) For the purpose of Sentence (1), any reference to Tables 5.5-5 through 5.5-7 of 2013 ANSI/ASHRAE/IES
90.1 shall be deemed to be a reference to Tables SB 5.5-5–2017 to SB 5.5-7–2017 of this Supplementary
Standard.
(3) Tables SB 5.5-5–2017 to SB 5.5-7–2017 shall supersede the requirements of Tables 5.5-5 to 5.5-7 of 2013
ANSI/ASHRAE/IES 90.1
(4) Tables 5.5-1 to 5.5-8 of 2013 ANSI/ASHRAE/IES 90.1 shall not be used.
(5) For a conditioned space, the exterior building envelope shall comply with either the “nonresidential” or
“residential” requirements in Tables SB 5.5-5–2017 through SB 5.5-7–2017 of this Supplementary Standard
for the appropriate climate.
(6) If a building contains any semiheated space or unconditioned space, then the semi-exterior building
envelope shall comply with the requirements for semiheated space in Tables SB 5.5-5–2017 through
SB 5.5-7–2017 of this Supplementary Standard for the appropriate climate.
(7) Notwithstanding the requirements of Tables SB 5.5-5–2017 to SB 5.5-7–2017, exposed frame floors,
between the framing members, need not be insulated to more than
(a) RSI of 6.69 (R38) where the framing depth is more than 254 mm (10 in.), and
(b) RSI of 5.28 (R30) where the framing depth is 254 mm (10 in.) or less, and
5.5.2. Reserved
5.5.3.5.1 Slabs. Insulation continuity shall be maintained in the design of slab edge insulation systems.
Continuity shall be maintained from the wall insulation through the slab/wall/footing intersection to the body of
the slab edge insulation. Several representative configurations are illustrated in Figure 5-1.
5.5.3.5.2 Where insulative continuity is impossible because of structural constraints, a minimum overlapping of
insulation is acceptable. The insulation must overlap by a distance equal to (or greater than) four times the
minimum insulation separation, as shown in Figure 5-2.
Page 18 • SB-10 Division 1
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2024MMA Supplementary Standard SB-10
Figure 5-1
Continuity of Insulation on or Below Grade
Figure 5-2
Minimum Permissible Insulation Overlap
Division 3 SB-10 • Page 19
2024MMA Supplementary Standard SB-10
5.5.3.7 For the purposes of Section 5, the effects of thermal bridging are waived for:
(a) intermediate structural connections of continuous steel shelf angles (or similar structural element) used to
support the building facade provided there is a thermal break between the remaining contact surface of the
supporting element and the building structure. This provision is intended to substantially reduce thermal
bridging effects caused by the continuous bearing between structural elements supporting building facade
and the building frame (ie. steel shelf angle attached to perimeter floor slab to support brick veneer), or
(b) structural connections of load bearing elements where a thermal break cannot be achieved.
5.5.3.8 In addition to the exceptions permitted above, the effects of thermal bridging are also waived for:
(a) exposed structural projections of buildings where the total cross-sectional area of the exposed element does
not exceed 2% of the exterior building envelope area and the cross-sectional area of the exposed structural
element is measured where it penetrates the insulation component of the building envelope, (For example, if
the total cross-sectional area of cantilevered concrete balconies and other projections penetrating the
insulation component of the building envelope does not exceed 2% of the exterior building envelope area,
their thermal bridging effects need not be taken into account)
(b) ties in masonry construction,
(c) flashing, and
(d) top exposed portion of foundation walls provided the exposure does not exceed 200 mm measured from the
top of the foundation wall to the top of exterior wall insulation which meets the minimum insulation
RSI-Value for wall below grade stipulated in the appropriate Tables. (See Figure 5-3)
Figure 5-3
Maximum Uninsulated Surface of Foundation Wall
Page 20 • SB-10 Division 1
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2024MMA Supplementary Standard SB-10
(3) Section 5.5.4.5 of 2013 ANSI/ASHRAE/IES 90.1 shall only be applicable where the main entrance is located on the
south orientation and the south oriented wall area is larger than west oriented wall area, and where the south oriented wall
area is larger than east oriented wall area. (See Appendix A.)
(4) The building envelope trade-off option in Section 5.6 of 2013 ANSI/ASHRAE/IES 90.1 shall not apply unless the
procedure incorporates the modifications made to 2013 ANSI/ASHRAE/IES 90.1 through this Chapter.
(5) Section 5.8.2.4.A shall be added to Section 5.8.2.4 “Air Leakage” of 2013 ANSI/ASHRAE/IES 90.1.
5.8.2.4.A Alternative Standards to determine Thermal Characteristics of Fenestrations
(1) Notwithstanding Sections 5.8.2.3 and 5.8.2.4, thermal characteristics of fenestrations are permitted to be
determined in conformance with;
(a) CAN/CSA-A440.2, “Fenestration Energy Performance”, or
(b) NFRC 100, “Procedure for Determining Fenestration Product U-factors” and NFRC 200, “Procedure for
Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal
Incidence”.
Division 3 SB-10 • Page 21
2024MMA Supplementary Standard SB-10
TABLE SB 5.5-5–2017 (See Appendix A.)
(Supersedes Table 5.5-5 in 2013 ANSI/ASHRAE/IES 90.1)
Building Envelope Requirements for Climate Zone 5 (A, B, C) (SI)
Nonresidential Residential Semiheated
Opaque Elements Assembly Insulation Assembly Insulation Assembly Insulation
Max. U-Value Min. RSI-Value Max. U-Value Min. RSI-Value Max. U-Value Min. RSI-Value
Roofs
Insulation Entirely Above Deck U-0.164 6.2 ci U-0.164 6.2 ci U-0.322 3.0 ci
Metal Building a U-0.189 4.4 + 1.9 Ls U-0.189 4.4 + 1.9 Ls U-0.419 1.8 + 3.3
Attic and Other U-0.107 10.6 U-0.107 10.6 U-0.174 6.7
Walls, Above Grade
Mass U-0.307 3.0 ci U-0.273 3.3 ci U-0.514 1.8 ci
Metal Building U-0.256 2.3 + 3.3 ci U-0.256 2.3 + 3.3 ci U-0.480 2.3 + 1.1 ci
Steel Framed U-0.281 2.3 + 2.1 ci U-0.281 2.3 + 2.1 ci U-0.429 2.3 + 1.1 ci
Wood Framed and Other U-0.261 2.3 + 1.8 ci U-0.261 2.3 + 1.8 ci U-0.455 2.3 + 0.2 ci
Wall, Below Grade
Below Grade Wall C-0.380 2.6 ci C-0.380 2.6 ci C-0.676 1.3 ci
Floors
Mass U-0.291 2.9 ci U-0.261 3.3 ci U-0.547 1.3 ci
Steel Joist U-0.194 6.7 U-0.194 6.7 U-0.266 4.4
Wood Framed and Other U-0.169 6.7 U-0.169 6.7 U-0.261 3.7
Slab-On-Grade Floors
Unheated F-0.810 2.6 for 1200 mm F-0.794 2.6 for 1200 mm F-1.263 NR
Heated F-1.072 1.8 full slab F-1.072 1.8 full slab F-1.402 1.8 for 1200 mm
Opaque Doors
Swinging U-2.56 U-2.56 U-3.58
Nonswinging U-2.56 U-2.56 U-7.41
Assembly Assembly Assembly Assembly Assembly Assembly
Fenestration Max. Min. Max. Min. Max. Min.
Max. U-Value Max. U-Value Max. U-Value
SHGC VT/SHGC SHGC VT/SHGC SHGC VT/SHGC
Vertical Fenestration, 0% - 40% of Wall
Nonmetal framing: all U-1.64 U-1.64 U-2.30
Metal framing: fixed U-2.15 U-2.15 U-3.17
0.40 1.10 0.40 1.10 NR NR
Metal framing: operable U-2.56 U-2.56 U-3.58
Metal framing: entrance door U-3.94 U-3.48 U-3.94
Skylight, 0% - 3% of Roof
All types U-2.56 0.40 NR U-2.56 0.40 NR U-5.01 NR NR
The following definitions apply: ci = continuous insulation, Ls = liner system, NR = no (insulation) requirement.
a When using the RSI-value compliance method for metal building roofs, a thermal spacer block is required.
Page 22 • SB-10 Division 1
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2024MMA Supplementary Standard SB-10
TABLE SB 5.5-6–2017 (See Appendix A.)
(Supersedes Table 5.5-6 in 2013 ANSI/ASHRAE/IES 90.1)
Building Envelope Requirements for Climate Zone 6 (A, B) (SI)
Nonresidential Residential Semiheated
Opaque Elements Assembly Insulation Assembly Insulation Assembly Insulation
Max. U-Value Min. RSI-Value Max. U-Value Min. RSI-Value Max. U-Value Min. RSI-Value
Roofs
Insulation Entirely Above Deck U-0.164 6.2 ci U-0.164 6.2 ci U-0.322 3.0 ci
Metal Building a U-0.158 4.4 + 1.9 + 1.9 Ls U-0.148 4.4 + 1.9 + 1.9 Ls U-0.307 3.3 + 1.9 Ls
Attic and Other U-0.107 10.6 U-0.107 10.6 U-0.174 6.7
Walls, Above Grade
Mass U-0.273 3.3 ci U-0.261 3.5 ci U-0.514 1.8 ci
Metal Building U-0.256 2.3 + 3.3 ci U-0.256 2.3 + 3.3 ci U-0.480 2.3 + 1.1 ci
Steel Framed U-0.250 2.3 + 2.6 ci U-0.250 2.3 + 2.6 ci U-0.429 2.3 + 1.1 ci
Wood Framed and Other U-0.261 2.3 + 1.8 ci U-0.261 2.3 + 1.8 ci U-0.455 2.3 + 0.2 ci
Wall, Below Grade
Below Grade Wall C-0.284 3.5 ci C-0.284 3.5 ci C-0.676 1.3 ci
Floors
Mass U-0.261 3.3 ci U-0.261 3.3 ci U-0.445 1.7 ci
Steel Joist U-0.164 6.7 + 0.7 ci U-0.164 6.7 + 0.7 ci U-0.266 4.4
Wood Framed and Other U-0.138 6.7 + 0.5 ci U-0.138 6.7 + 0.5 ci U-0.261 3.7
Slab-On-Grade Floors
Unheated F-0.794 2.6 for 1200 mm F-0.676 1.8 full slab F-1.263 NR
Heated F-1.072 1.8 full slab F-1.045 1.8 full slab F-1.340 2.6 for 1200 mm
Opaque Doors
Swinging U-2.56 U-2.56 U-3.58
Nonswinging U-2.56 U-2.56 U-2.56
Assembly Assembly Assembly Assembly Assembly Assembly
Fenestration Max. Min. Max. Min. Max. Min.
Max. U-Value Max. U-Value Max. U-Value
SHGC VT/SHGC SHGC VT/SHGC SHGC VT/SHGC
Vertical Fenestration, 0% - 40% of Wall
Nonmetal framing: all U-1.64 U-1.64 U-2.30
Metal framing: fixed U-2.15 U-2.15 U-2.61
.40 1.10 0.40 1.10 NR NR
Metal framing: operable U-2.56 U-2.56 U-3.02
Metal framing: entrance door U-3.94 U-3.48 U-3.94
Skylight, 0% - 3% of Roof
All types U-2.56 0.40 NR U-2.56 0.40 NR U-4.34 NR NR
The following definitions apply: ci = continuous insulation, Ls = liner system, NR = no (insulation) requirement.
a When using the RSI-value compliance method for metal building roofs, a thermal spacer block is required.
Division 3 SB-10 • Page 23
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2024MMA Supplementary Standard SB-10
TABLE SB 5.5-7–2017 (See Appendix A.)
(Supersedes Table 5.5-7 in 2013 ANSI/ASHRAE/IES 90.1)
Building Envelope Requirements for Climate Zone 7 (SI)
Nonresidential Residential Semiheated
Opaque Elements Assembly Insulation Assembly Insulation Assembly Insulation
Max. U-Value Min. RSI-Value Max. U-Value Min. RSI-Value Max. U-Value Min. RSI-Value
Roofs
Insulation Entirely Above Deck U-0.143 7.0 ci U-0.143 7.0 ci U-0.199 4.9 ci
Metal Building a U-0.148 4.4 + 1.9 + 1.9 Ls U-0.148 4.4 + 1.9 + 1.9 Ls U-0.189 4.4 + 1.9 Ls
Attic and Other U-0.087 12.5 U-0.087 12.5 U-0.138 8.6
Walls, Above Grade
Mass U-0.261 3.5 ci U-0.261 3.5 ci U-0.419 2.1 ci
Metal Building U-0.225 2.3 + 3.3 ci U-0.225 2.3 + 3.3 ci U-0.368 2.3 + 1.7 ci
Steel Framed U-0.250 2.3 + 2.6 ci U-0.215 2.3 + 3.5 ci U-0.327 2.3 + 1.8 ci
Wood Framed and Other U-0.261 2.3 + 1.8 ci U-0.261 2.3 + 1.8 ci U-0.327 2.3 + 1.1 ci
Wall, Below Grade
Below Grade Wall C-0.284 3.5 ci C-0.284 3.5 ci C-0.676 1.3 ci
Floors
Mass U-0.215 4.1 ci U-0.215 4.1 ci U-0.378 2.1 ci
Steel Joist U-0.164 6.7 + 0.7 ci U-0.164 6.7 + 0.7 ci U-0.266 4.4
Wood Framed and Other U-0.138 6.7 + 0.5 ci U-0.138 6.7 + 0.5 ci U-0.261 3.7
Slab-On-Grade Floors
Unheated F-0.794 2.6 for 1200 mm F-0.676 1.8 full slab F-1.263 NR
Heated F-1.045 1.8 full slab F-1.045 1.8 full slab F-1.340 2.6 for 1200 mm
Opaque Doors
Swinging U-2.56 U-2.56 U-3.58
Nonswinging U-2.56 U-2.56 U-2.56
Assembly Assembly Assembly Assembly Assembly Assembly
Fenestration Max. Min. Max. Min. Max. Min.
Max. U-Value Max. U-Value Max. U-Value
SHGC VT/SHGC SHGC VT/SHGC SHGC VT/SHGC
Vertical Fenestration, 0% - 40% of Wall
Nonmetal framing: all U-1.64 U-1.64 U-1.64
Metal framing: fixed U-1.94 U-1.94 U-1.94
0.45 1.10 0.45 1.10 NR NR
Metal framing: operable U-2.04 U-2.04 U-2.25
Metal framing: entrance door U-3.94 U-3.48 U-3.94
Skylight, 0% - 3% of Roof
All types U-2.56 NR NR U-2.56 NR NR U-4.34 NR NR
The following definitions apply: ci = continuous insulation, Ls = liner system, NR = no (insulation) requirement.
a When using the RSI-value compliance method for metal building roofs, a thermal spacer block is required.
Page 24 • SB-10 Division 1
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2024MMA Supplementary Standard SB-10
TABLE SB 5.5-5–2017 (See Appendix A.)
(Supersedes Table 5.5-5 in 2013 ANSI/ASHRAE/IES 90.1)
Building Envelope Requirements for Climate Zone 5 (A, B, C) (I-P)
Nonresidential Residential Semiheated
Opaque Elements Assembly Insulation Assembly Insulation Assembly Insulation
Max. U-Value Min. R-Value Max. U-Value Min. R-Value Max. U-Value Min. R-Value
Roofs
Insulation Entirely Above Deck U-0.029 R-35 ci U-0.029 R-35 ci U-0.057 R-17 ci
Metal Building a U-0.033 R-25 + R-11 Ls U-0.033 R-25 + R-11 Ls U-0.074 R-10 + R-19
Attic and Other U-0.019 R-60 U-0.019 R-60 U-0.031 R-38
Walls, Above Grade
Mass U-0.054 R-17 ci U-0.048 R-19 ci U-0.091 R-10 ci
Metal Building U-0.045 R-13 + R-19 ci U-0.045 R-13 + R-19 ci U-0.085 R-13 + R-6.3 ci
Steel Framed U-0.050 R-13 + R-12 ci U-0.050 R-13 + R-12 ci U-0.076 R-13 + R-6.3 ci
Wood Framed and Other U-0.046 R-13 + R-10 ci U-0.046 R-13 + R-10 ci U-0.080 R-13 + R-1 ci
Wall, Below Grade
Below Grade Wall C-0.067 R-15 ci C-0.067 R-15 ci C-0.119 R-7.4 ci
Floors
Mass U-0.051 R-16.4 ci U-0.046 R-18.7 ci U-0.096 R-7.4 ci
Steel Joist U-0.034 R-38 U-0.034 R-38 U-0.047 R-25
Wood Framed and Other U-0.030 R-38 U-0.030 R-38 U-0.046 R-21
Slab-On-Grade Floors
Unheated F-0.468 R-15 for 48 in. F-0.459 R-15 for 48 in. F-0.730 NR
Heated F-0.619 R-10 full slab F-0.619 R-10 full slab F-0.810 R-10 for 48 in.
Opaque Doors
Swinging U-0.45 U-0.45 U-0.63
Nonswinging U-0.45 U-0.45 U-1.31
Assembly Assembly Assembly Assembly Assembly Assembly
Fenestration Max. Min. Max. Min. Max. Min.
Max. U-Value Max. U-Value Max. U-Value
SHGC VT/SHGC SHGC VT/SHGC SHGC VT/SHGC
Vertical Fenestration, 0% - 40% of Wall
Nonmetal framing: all U-0.29 U-0.29 U-0.41
Metal framing: fixed U-0.38 U-0.38 U-0.56
0.40 1.10 0.40 1.10 NR NR
Metal framing: operable U-0.45 U-0.45 U-0.63
Metal framing: entrance door U-0.69 U-0.61 U-0.69
Skylight, 0% - 3% of Roof
All types U-0.45 0.40 NR U-0.45 0.40 NR U-0.88 NR NR
The following definitions apply: ci = continuous insulation, Ls = liner system, NR = no (insulation) requirement.
a When using the R-value compliance method for metal building roofs, a thermal spacer block is required.
Division 3 SB-10 • Page 25
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2024MMA Supplementary Standard SB-10
TABLE SB 5.5-6–2017 (See Appendix A.)
(Supersedes Table 5.5-6 in 2013 ANSI/ASHRAE/IES 90.1)
Building Envelope Requirements for Climate Zone 6 (A, B) (I-P)
Nonresidential Residential Semiheated
Opaque Elements Assembly Insulation Assembly Insulation Assembly Insulation
Max. U-Value Min. R-Value Max. U-Value Min. R-Value Max. U-Value Min. R-Value
Roofs
Insulation Entirely Above Deck U-0.029 R-35 ci U-0.029 R-35 ci U-0.057 R-17 ci
R-25 + R-11 + R-25 + R-11 +
Metal Building a U-0.028 U-0.026 U-0.054 R-19 + R-11 Ls
R-11 Ls R-11 Ls
Attic and Other U-0.019 R-60 U-0.019 R-60 U-0.031 R-38
Walls, Above Grade
Mass U-0.048 R-19 ci U-0.046 R-20 ci U-0.091 R-10 ci
Metal Building U-0.045 R-13 + R-19 ci U-0.045 R-13 + R-19 ci U-0.085 R-13 + R-6.5 ci
Steel Framed U-0.044 R-13 + R-15 ci U-0.044 R-13 + R-15 ci U-0.076 R-13 + R-6 ci
Wood Framed and Other U-0.046 R-13 + R-10 ci U-0.046 R-13 + R-10 ci U-0.080 R-13 + R-1 ci
Wall, Below Grade
Below Grade Wall C-0.050 R-20 ci C-0.050 R-20 ci C-0.119 R-7.5 ci
Floors
Mass U-0.046 R-18.7 ci U-0.046 R-18.7 ci U-0.078 R-9.7 ci
Steel Joist U-0.029 R-38 + R-4 ci U-0.029 R-38 + R-4 ci U-0.047 R-25
Wood Framed and Other U-0.024 R-38 + R-3 ci U-0.024 R-38 + R-3 ci U-0.046 R-21
Slab-On-Grade Floors
Unheated F-0.459 R-15 for 48 in. F-0.391 R-10 full slab F-0.730 NR
Heated F-0.619 R-10 full slab F-0.604 R-10 full slab F-0.774 R-15 for 48 in.
Opaque Doors
Swinging U-0.45 U-0.45 U-0.63
Nonswinging U-0.45 U-0.45 U-0.45
Assembly Assembly Assembly Assembly Assembly Assembly
Fenestration Max. Min. Max. Min. Max. Min.
Max. U-Value Max. U-Value Max. U-Value
SHGC VT/SHGC SHGC VT/SHGC SHGC VT/SHGC
Vertical Fenestration, 0% - 40% of Wall
Nonmetal framing: all U-0.29 U-0.29 U-0.41
Metal framing: fixed U-0.38 U-0.38 U-0.46
0.40 1.10 0.40 1.10 NR NR
Metal framing: operable U-0.45 U-0.45 U-0.53
Metal framing: entrance door U-0.69 U-0.61 U-0.69
Skylight, 0% - 3% of Roof
All types U-0.45 0.40 NR U-0.45 0.40 NR U-0.77 NR NR
The following definitions apply: ci = continuous insulation, Ls = liner system, NR = no (insulation) requirement.
a When using the R-value compliance method for metal building roofs, a thermal spacer block is required.
Page 26 • SB-10 Division 1
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2024MMA Supplementary Standard SB-10
TABLE SB 5.5-7–2017 (See Appendix A.)
(Supersedes Table 5.5-7 in 2013 ANSI/ASHRAE/IES 90.1)
Building Envelope Requirements for Climate Zone 7 (I-P)
Nonresidential Residential Semiheated
Opaque Elements Assembly Insulation Assembly Insulation Assembly Insulation
Max. U-Value Min. R-Value Max. U-Value Min. R-Value Max. U-Value Min. R-Value
Roofs
Insulation Entirely Above Deck U-0.025 R-40 ci U-0.025 R-40 ci U-0.035 R-28 ci
R-25 + R-11 + R-25 + R-11 +
Metal Building a U-0.026 U-0.026 U-0.033 R-25 + R-11 Ls
R-11 Ls R-11 Ls
Attic and Other U-0.015 R-71 U-0.015 R-71 U-0.024 R-49
Walls, Above Grade
Mass U-0.046 R-20 ci U-0.046 R-20 ci U-0.074 R-12 ci
Metal Building U-0.040 R-13 + R-19 ci U-0.040 R-13 + R-19 ci U-0.065 R-13 + R-9.8 ci
Steel Framed U-0.044 R-13 + R-15 ci U-0.038 R-13 + R-20 ci U-0.058 R-13 + R-10 ci
Wood Framed and Other U-0.046 R-13 + R-10 ci U-0.046 R-13 + R-10 ci U-0.058 R-13 + R-6 ci
Wall, Below Grade
Below Grade Wall C-0.050 R-20 ci C-0.050 R-20.0 ci C-0.119 R-7.5 ci
Floors
Mass U-0.038 R-23.4 ci U-0.038 R-23.4 ci U-0.067 R-12 ci
Steel Joist U-0.029 R-38 + R-4 ci U-0.029 R-38 + R-4 ci U-0.047 R-25
Wood Framed and Other U-0.024 R-38 + R-3 ci U-0.024 R-38 + R-3 ci U-0.046 R-21
Slab-On-Grade Floors
Unheated F-0.459 R-15 for 48 in. F-0.391 R-10 full slab F-0.730 NR
Heated F-0.604 R-10 full slab F-0.604 R-10 full slab F-0.774 R-15 for 48 in.
Opaque Doors
Swinging U-0.45 U-0.45 U-0.63
Nonswinging U-0.45 U-0.45 U-0.45
Assembly Assembly Assembly Assembly Assembly Assembly
Fenestration Max. Min. Max. Min. Max. Min.
Max. U-Value Max. U-Value Max. U-Value
SHGC VT/SHGC SHGC VT/SHGC SHGC VT/SHGC
Vertical Fenestration, 0% - 40% of Wall
Nonmetal framing: all U-0.29 U-0.29 U-0.29
Metal framing: fixed U-0.34 U-0.34 U-0.34
0.45 1.10 0.45 1.10 NR NR
Metal framing: operable U-0.36 U-0.36 U-0.40
Metal framing: entrance door U-0.69 U-0.61 U-0.69
Skylight, 0% - 3% of Roof
All types U-0.45 NR NR U-0.45 NR NR U-0.77 NR NR
The following definitions apply: ci = continuous insulation, Ls = liner system, NR = no (insulation) requirement.
a When using the R-value compliance method for metal building roofs, a thermal spacer block is required.
Division 3 SB-10 • Page 27
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
1.1.1.5.Heating Ventilation and Air-Conditioning
(1) Where electric space heating is used, the building envelope shall comply with the requirements of Table SB 5.5-7–
2017 of this Supplementary Standard, regardless of its climatic zone.
(2) Section 6.4.1.A shall be added to Section 6 “Heating Ventilation and Air Conditioning Equipment” of 2013
ANSI/ASHRAE/IES 90.1.
6.4.1.A. Testing Procedures for Minimum Equipment Efficiency
(1) Equipment efficiencies that are tested in accordance with the test procedures listed in the 2015 NECB or in
an applicable Ontario Regulation, shall be deemed to be in compliance with the test procedures given in
Tables 6.8.1-1 to 6.8.1-13.
(3) Fan systems shall have fan power limitations 10% below limitations specified in Table 6.5.3.1-1 of 2013
ANSI/ASHRAE/IES-90.1.
(4) Energy recovery systems required in 6.5.6.1 of 2013 ANSI/ASHRAE/IES-90.1 shall have at least 55% energy
recovery effectiveness.
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
1.1.1.6.HVAC and Service Water Heating Equipment – Minimum Equipment
Efficiency
(1) The minimum equipment efficiency of a gas-fired boiler shall comply with the value required in Table SB 6.8.1–
2017.
(2) The minimum equipment efficiency of a gas-fired storage water heater shall comply with the value required in
Table SB 6.8.1–2017.
Table SB 6.8.1–2017
Minimum Equipment Efficiency for Gas Boilers and Gas Water Heaters
Forming Part of Sentences 1.1.1.6.(1) and (2)
Equipment Size Category, kW (Btu/h) Performance Required
< 88 (< 300,000) 90% AFUE
Gas boilers, hot water ≥ 88 and < 733
90% Et
(≥ 300,000 and < 2,500,000)
0.7 - 0.0005V (V in litres) EF
Gas water heaters ≤ 22 (≤ 75,000)
(0.7 - 0.00189V, V in U.S. gal)
Column 1 2 3
Page 28 • SB-10 Division 1
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1.1.1.7.Service Water Heating Equipment
(1) Section 7.4.2.A shall be added to Section 7 “Service Water Heating Equipment ” of 2013 ANSI/ASHRAE/IES 90.1.
7.4.2.A Testing Procedures for Minimum Equipment Efficiency
(1) Equipment efficiencies that are tested in accordance with the test procedures listed in the 2015 NECB or in
an applicable Ontario Regulation, shall be deemed to be in compliance with the test procedures given in
Table 7.8.
(2) Section 7.4.5.2 of Section 7 “Service Water Heating Equipment” of 2013 ANSI/ASHRAE/IES 90.1 shall be
substituted with the following Article:
7.4.5.2 Pool Covers. Heated exterior public pools and public spas shall be equipped with pool covers.
Exception. Pools deriving over 60% of their energy for heating (computed over an annual operating season) from
site-recovered or site-solar energy.
1.1.1.8. Power, Lighting and Other Equipment
(1) Automatic receptacle controls required in Section 8.4.2 of 2013 ANSI/ASHRAE/IES 90.1 shall not apply to private
and open offices.
(2) Section 8.4.3.3 shall be added to Section 8.4.3. “Electric Energy monitoring” of 2013 ANSI/ASHRAE/IES 90.1.
8.4.3.3 The building shall be deemed to comply with Sections 8.4.3.1 and 8.4.3.2 if the building is designed and
constructed to facilitate future installation of means to measure and monitor energy use of the building
parts and systems described in Section 8.4.3.1. (See Appendix A.)
(3) Section 9.4.1.2.(b) of 2013 ANSI/ASHRAE/IES 90.1 shall be substituted with the following:
9.4.1.2.(b) Lighting shall be controlled by one or more devices that automatically reduce lighting power by a
minimum of 30% when there is no activity detected within a lighting zone for no more than
20 minutes. Lighting zone for this requirement shall be no larger than 334 m 2 (3600 ft2).
(4) Uncovered parking areas are exempt from the requirements of Section 9.4.1.4.(c) of 2013 ANSI/ASHRAE/IES 90.1.
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
1.1.1.9.Lighting Power Allowance and Controls
(1) The calculation of interior lighting power allowance shall be based on the lighting power densities given in Table
SB 9.5.1–2017 or Table SB 9.6.1–2017 of this Chapter.
(2) Except as provided in Sentence (4), for the purpose of Sentence (1), any reference to Table 9.5.1 and the lighting
power densities contained in Table 9.6.1 of 2013 ANSI/ASHRAE/IES-90.1 shall be deemed to be a reference to Table
SB 9.5.1–2017 and the lighting power densities listed in Table SB 9.6.1–2017 of this Chapter respectively.
(3) Lighting power densities listed in Table SB 9.5.1–2017 and Table SB 9.6.1–2017 of this Chapter shall supersede the
lighting power densities listed in Table 9.5.1 and Table 9.6.1 of 2013 ANSI/ASHRAE/IES-90.1 respectively.
(4) Minimum lighting control requirements in Table 9.6.1 of 2013 ANSI/ASHRAE/IES-90.1 shall apply.
Division 3 SB-10 • Page 29
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2024MMA Supplementary Standard SB-10
Table SB 9.5.1–2017
Lighting Power Densities Using the Building Area Method (1)
Forming Part of Sentences 1.1.1.9.(1) to (3)
Lighting Power Density,
Building Area Type
W/m2 (W/ft2)
Automotive Facility 7.6 (0.71)
Convention Centre 8.2 (0.76)
Courthouse 9.7 (0.90)
Dining
Bar Lounge / Leisure 9.7 (0.90)
Cafeteria / Fast Food 8.5 (0.79)
Family 8.4 (0.78)
Dormitory 6.6 (0.61)
Exercise Centre 7.0 (0.65)
Fire Station 5.7 (0.53)
Gymnasium 7.3 (0.68)
Health-Care Clinic 8.8 (0.82)
Hospital 11.3 (1.05)
Hotel 8.1 (0.75)
Library 8.4 (0.78)
Manufacturing Facility 9.7 (0.90)
Motel 8.1 (0.75)
Motion Picture Theatre 8.9 (0.83)
Multi-Unit Residential Building 7.3 (0.68)
Museum 11.4 (1.06)
Office 8.5 (0.79)
Storage Garage 1.6 (0.15)
Penitentiary 8.1 (0.75)
Performing Arts Theatre 12.7 (1.18)
Police Station 8.6 (0.80)
Post Office 7.2 (0.67)
Religious Building 10.1 (0.94)
Retail 11.4 (1.06)
School / University 8.7 (0.81)
Sports Arena 9.4 (0.87)
Town Hall 8.6 (0.80)
Transportation 6.6 (0.61)
Warehouse 5.2 (0.48)
Workshop 9.7 (0.90)
Column 1 2
Notes to Table SB 9.5.1–2017:
(1) Terms shall have the same meanings as they have in 2013 ANSI/ASHRAE/IES-90.1.
Page 30 • SB-10 Division 1
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2024MMA Supplementary Standard SB-10
Table SB 9.6.1–2017
Lighting Power Densities Using the Space-by-Space Method(1)
Forming Part of Sentences 1.1.1.9.(1) to (3)
Lighting Power Density,
Common Space Types
W/m2 (W/ft2)
Atrium
1.06 per m in height
< 6 m in height
(0.03 per ft in height)
1.06 per m in height
≥ 6 m and ≤ 12 m in height
(0.03 per ft in height)
4.31 + 0.71 per m in height
> 12 m in height
(0.40 + 0.02 per ft in height)
Audience / Seating Area-Permanent
For Auditorium 6.8 (0.63)
For Convention Centre 8.8 (0.82)
For Gymnasium 7.0 (0.65)
For Motion Picture Theatre 12.3 (1.14)
For Penitentiary 3.0 (0.28)
For Performing Arts Theatre 21.8 (2.03)
For Religious Buildings 16.5 (1.53)
For Sports Arena 4.6 (0.43)
Other 4.6 (0.43)
Banking Activity Area and Offices 9.3 (0.86)
Classroom / Lecture / Training
For Penitentiary 14.4 (1.34)
Other 10.3 (0.96)
Computer / Server Room 14.3 (1.33)
Conference / Meeting / Multi-Purpose 11.5 (1.07)
Confinement Cell 8.7 (0.81)
Copy / Print Room 6.0 (0.56)
Corridor / Transition Area
For space designed to ANSI/IES RP- 28(2) (and used primarily by residents) 9.9 (0.92)
For Hospital 9.9 (0.92)
For Manufacturing Facility 3.1 (0.29)
Other 7.1 (0.66)
Courtroom 15.0 (1.39)
Dining Area
For Bar Lounge / Leisure Dining 10.0 (0.93)
For Cafeteria / Fast Food Dining 6.8 (0.63)
For Family Dining 7.6 (0.71)
For space designed to ANSI/IES RP-28(2) (and used primarily by residents) 21.5 (2.00)
For Penitentiary 10.3 (0.96)
Other 6.8 (0.63)
Column 1 2
Division 3 SB-10 • Page 31
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2024MMA Supplementary Standard SB-10
Table SB 9.6.1–2017 (Cont’d)
Lighting Power Densities Using the Space-by-Space Method
Forming Part of Sentences 1.1.1.9.(1) to (3)
Lighting Power Density,
Building-Specific Space Types
W/m2 (W/ft2)
Dressing / Fitting Room For Performing Arts Theatre 6.6 (0.61)
Electrical / Mechanical Room 4.6 (0.43)
Emergency Vehicle Garage 4.4 (0.41)
Food Preparation Area 11.4 (1.06)
Guest Room 8.3 (0.77)
Laboratory
For Classrooms 12.9 (1.20)
Other 15.6 (1.45)
Laundry / Washing Area 4.6 (0.43)
Loading Dock, Interior 6.2 (0.58)
Lobby
For space designed to ANSI/IES RP-28(2) (and used primarily by residents) 21.8 (2.03)
For Elevator 7.3 (0.68)
For Hotel 11.4 (1.06)
For Motion Picture Theatre 4.8 (0.45)
For Performing Arts Theatre 18.3 (1.70)
Other 10.8 (1.00)
Locker Room 5.2 (0.48)
Lounge / Break Room
For Healthcare Facility 8.4 (0.78)
Other 6.7 (0.62)
Office
Enclosed 10.0 (0.93)
Open Plan 8.7 (0.81)
Storage Garage, Interior 1.5 (0.14)
Pharmacy Area 14.4 (1.34)
Sales Area 13.1 (1.22)
Seating Area, General 4.6 (0.43)
Stairway 6.2 (0.58)
Storage Room ≥ 5 m2 and < 100 m2 6.8 (0.63)
Storage Room < 5 m2 10.4 (0.97)
Vehicular Maintenance Area 6.0 (0.56)
Washroom
For care occupancy designed to ANSI/IES RP-28(2) (and used primarily by
13.1 (1.22)
residents)
Other 9.1 (0.85)
Workshop 12.3 (1.14)
Column 1 2
Page 32 • SB-10 Division 1
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2024MMA Supplementary Standard SB-10
Table SB 9.6.1–2017 (Cont’d)
Lighting Power Densities Using the Space-by-Space Method
Forming Part of Sentences 1.1.1.9.(1) to (3)
Lighting Power Density,
Building-Specific Space Types
W/m2 (W/ft2)
Care occupancy designed to ANSI/IES RP-28(2)
For Chapel (used primarily by residents) 11.4 (1.06)
For Recreation Room (used primarily by residents) 19.4 (1.80)
Convention Centre
Exhibit Space 9.5 (0.88)
Dormitory
Living Quarters 5.8 (0.54)
Fire Station
Sleeping Quarters 2.2 (0.20)
Gymnasium / Fitness Centre
Exercise Area 5.4 (0.50)
Playing Area 8.8 (0.82)
Healthcare Facility
Exam / Treatment Room 18.1 (1.68)
Medical Supply Room 5.8 (0.54)
Nursery 10.8 (1.00)
Nurses' Station 8.7 (0.81)
Operating Room 23.4 (2.17)
Patient Room 6.7 (0.62)
Physical Therapy 9.0 (0.84)
Imaging Room 11.4 (1.06)
Recovery 11.1 (1.03)
Library
Reading Area 8.8 (0.82)
Stacks 12.9 (1.20)
Manufacturing Facility
Detailed Manufacturing Area 10.0 (0.93)
Equipment Room 7.0 (0.65)
Extra High Bay (> 15 m floor to ceiling height) 11.3 (1.05)
High Bay (7.5 m to 15 m floor to ceiling height) 8.1 (0.75)
Low Bay (< 7.5 m floor to ceiling height) 10.3 (0.96)
Column 1 2
Division 3 SB-10 • Page 33
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2024MMA Supplementary Standard SB-10
Table SB 9.6.1–2017 (Cont’d)
Lighting Power Densities Using the Space-by-Space Method
Forming Part of Sentences 1.1.1.9.(1) to (3)
Lighting Power Density,
Building-Specific Space Types
W/m2 (W/ft2)
Museum
General Exhibition 11.3 (1.05)
Restoration 9.2 (0.85)
Post Office 7.3 (0.68)
Sorting Area
Religious Building
Fellowship Hall 5.9 (0.55)
Worship / Pulpit / Choir 16.5 (1.53)
Retail Facilities
Dressing / Fitting Room 5.4 (0.50)
Mall Concourse 9.7 (0.90)
Sports Arena – Playing Area
Class IV Facility 12.2 (1.13)
Class III Facility 18.3 (1.70)
Class II Facility 21.1 (1.96)
Class I Facility 26.6 (2.47)
Transportation Facility
Baggage / Carousel Area 4.8 (0.45)
Airport Concourse 3.3 (0.31)
Terminal Ticket Counter 6.7 (0.62)
Warehouse
Small, Hand-Carried Items 7.4 (0.69)
Medium To Bulky, Palletized Items 3.8 (0.35)
Column 1 2
Notes to Table SB 9.6.1–2017:
(1) Terms shall have the same meanings as they have in 2013 ANSI/ASHRAE/IES-90.1.
(2) BSR/IES RP-28-16, “Lighting and the Visual Environment for Seniors and the Low Vision Population”.
(5) The calculation of exterior lighting power allowance shall be based on Table SB 9.4.2-2–2017 of this Chapter.
(6) Lighting power allowances listed in Table SB 9.4.2-2–2017 of this Chapter shall supersede the lighting power
allowances listed in Table 9.4.2-2 of 2013 ANSI/ASHRAE/IES 90.1.
Page 34 • SB-10 Division 1
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2024MMA Supplementary Standard SB-10
TABLE SB 9.4.2-2–2017
(Supersedes Table 9.4.2-2 in 2013 ANSI/ASHRAE/IES 90.1)
Individual Lighting Power Allowances for Building Exteriors
Forming Part of Sentences 1.1.1.9.(5) and (6)
Zone 0 Zone 1 Zone 2 Zone 3 Zone 4
Base Site Allowance (base allowance may be used in tradable or non-tradable surfaces)
No allowance 350 W 400 W 500 W 900 W
Tradable Surfaces
(LPDs for uncovered parking areas, building grounds, building entrances, exits and loading docks, canopies and overhangs, and outdoor
sales areas may be traded.)
Uncovered Parking Areas
0.32 W/m2 0.43 W/m2 0.65 W/m2 0.86 W/m2
Parking areas and drives No allowance
(0.03 W/ft2) (0.04 W/ft2) (0.06 W/ft2) (0.08 W/ft2)
Building Grounds
Walkways less than 3 m 1.6 W/m 1.6 W/m 2.0 W/m 2.3 W/m
No allowance
(10 ft) wide (0.50 W/ft) (0.50 W/ft) (0.60 W/ft) (0.70 W/ft)
Walkways 3 m (10 ft) 1.1 W/m2 1.1 W/m2 1.2 W/m2 1.5 W/m2
No allowance
wide or greater (0.10 W/ft2) (0.10 W/ft2) (0.11 W/ft2) (0.14 W/ft2)
1.1 W/m2 1.1 W/m2 1.2 W/m2 1.5 W/m2
Plaza areas No allowance
(0.10 W/ft2) (0.10 W/ft2) (0.11 W/ft2) (0.14 W/ft2)
6.5 W/m2 7.5 W/m2 7.5 W/m2 7.5 W/m2
Stairways No allowance
(0.60 W/ft2) (0.70 W/ft2) (0.70 W/ft2) (0.70 W/ft2)
1.3 W/m2 1.3 W/m2 1.5 W/m2 2.3 W/m2
Pedestrian Tunnels No allowance
(0.12 W/ft2) (0.12 W/ft2) (0.14 W/ft2) (0.21 W/ft2)
0.32 W/m2 0.43 W/m2 0.43 W/m2 0.43 W/m2
Landscaping No allowance
(0.03 W/ft2) (0.04 W/ft2) (0.04 W/ft2) (0.04 W/ft2)
Building Entrances, Exits, and Loading Docks
Pedestrian and vehicular 46 W/m (14 W/ft) 46 W/m (14 W/ft) 69 W/m (21 W/ft) 69 W/m (21 W/ft)
No allowance
entrances and exits of door width of door width of door width of door width
2.1 W/m2 2.7 W/m2 4.3 W/m2 4.3 W/m2
Entry canopies No allowance
(0.20 W/ft2) (0.25 W/ft2) (0.40 W/ft2) (0.40 W/ft2)
5.4 W/m2 5.4 W/m2 5.4 W/m2 5.4 W/m2
Loading docks No allowance
(0.50 W/ft2) (0.50 W/ft2) (0.50 W/ft2) (0.50 W/ft2)
Sales Canopies
Free standing and 4.3 W/m2 4.3 W/m2 6.5 W/m2 7.5 W/m2
No allowance
attached (0.40 W/ft2) (0.4 W/ft2) (0.60 W/ft2) (0.70 W/ft2)
Outdoor Sales
Open areas (including 6.5 W/m2 6.5 W/m2 6.5 W/m2 6.5 W/m2
No allowance
vehicle sales lots) (0.60 W/ft2) (0.60 W/ft2) (0.60 W/ft2) (0.60 W/ft2)
Street frontage for
vehicle sales lots in 23 W/m 23 W/m 69 W/m
No allowance No allowance
addition to “open area” (7 W/ft) (7 W/ft) (21 W/ft)
allowance
Column 1 2 3 4 5 6
Division 3 SB-10 • Page 35
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2024MMA Supplementary Standard SB-10
TABLE SB 9.4.2-2–2017 (Cont’d)
(Supersedes Table 9.4.2-2 in 2013 ANSI/ASHRAE/IES 90.1)
Individual Lighting Power Allowances for Building Exteriors
Forming Part of Sentences 1.1.1.9.(5) and (6)
Zone 0 Zone 1 Zone 2 Zone 3 Zone 4
Base Site Allowance (base allowance may be used in tradable or non-tradable surfaces)
No allowance 350 W 400 W 500 W 900 W
Nontradable Surfaces
(LPD calculations for the following applications can be used only for the specific application and cannot be traded between surfaces or
with other exterior lighting. The following allowances are in addition to any allowance otherwise permitted in the “Tradable Surfaces”
section of this table.)
1.1 W/m2 (0.10 W/ft2) 1.6 W/m2 (0.15 W/ft2) 2.2 W/m2 (0.20 W/ft2)
for each illuminated for each illuminated for each illuminated
Building façades wall or surface or wall or surface or wall or surface or
No allowance No allowance
(façade lighting) 8.2 W/m (2.5 W/ft) for 12.3 W/m (3.75 W/ft) 16.4 W/m (5.0 W/ft)
each illuminated wall for each illuminated for each illuminated
or surface length wall or surface length wall or surface length
135 W per location 135 W per location 135 W per location 135 W per location
Automated teller
plus 45 W per plus 45 W per plus 45 W per plus 45 W per
machines (ATM) and No allowance
additional ATM per additional ATM per additional ATM per additional ATM per
night depositories
location location location location
Entrances and
5.4 W/m2 (0.50 W/ft2) 5.4 W/m2 (0.50 W/ft2) 5.4 W/m2 (0.50 W/ft2) 5.4 W/m2 (0.50 W/ft2)
gatehouse inspection
No allowance of covered and of covered and of covered and of covered and
stations at guarded
uncovered area uncovered area uncovered area uncovered area
facilities
Loading areas for law
enforcement, fire, 3.8 W/m2 (0.35 W/ft2) 3.8 W/m2 (0.35 W/ft2) 3.8 W/m2 (0.35 W/ft2) 3.8 W/m2 (0.35 W/ft2)
ambulance, and other No allowance of covered and of covered and of covered and of covered and
emergency service uncovered area uncovered area uncovered area uncovered area
vehicles
Drive-through 200 W per drive- 200 W per drive- 200 W per drive- 200 W per drive-
No allowance
windows/doors through through through through
Parking near 24-hour 400 W per drive- 400 W per drive- 400 W per drive- 400 W per drive-
No allowance
retail entrances through through through through
A single luminaire of
60 W or less may be
Roadway/parking
installed for each
entry, trail head, and
roadway/parking
toilet facility, or other
entry, trail head, and No allowance No allowance No allowance No allowance
locations approved by
toilet facility, or other
the authority having
locations approved by
jurisdiction.
the authority having
jurisdiction
Column 1 2 3 4 5 6
Page 36 • SB-10 Division 1
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1.1.1.10.Other Equipment
(1) Section 10.4.1.A shall be added to Section 10 “Other Equipment” of 2013 ANSI/ASHRAE/IES 90.1.
10.4.1.A Electric Motors
(1) Notwithstanding Section 10.4.1, where the minimum efficiency requirements of an electric motor is covered
under an applicable Ontario Energy Efficiency Regulation, it shall meet the requirements of the Ontario
Regulation and shall be deemed to be in compliance with Section 10.4.1.
(2) Section 10.4.5.3 shall be added to Section 10.4.5 “Whole Building Energy Monitoring” of 2013
ANSI/ASHRAE/IES 90.1.
10.4.5.3 The building shall be deemed to comply with Sections 10.4.5.1 and 10.4.5.2, if the building is designed
and constructed to facilitate future installation of means to measure and monitor energy use by each
energy type described in Section 10.4.5.1. (See Appendix A.)
1.1.1.11.Energy Cost Method
(1) Section 11.4.1.1.(a.) of 2013 ANSI/ASHRAE/IES 90.1 shall be substituted with the following:
a. hour by hour and a minimum of 8760 hours per year.
(2) Section 11.5.2.(d.) of 2013 ANSI/ASHRAE/IES 90.1 shall be substituted with the following:
d. For the purpose of annual energy use simulation, except as provided in (d1.), the peak outdoor air ventilation
rates for the proposed and budget building shall be the same and set to the minimum rates required by the
applicable ventilation standard based on the proposed building design. Heat recovery shall be modelled for
the budget building design in accordance with Section 6.5.6.1.
d1. Except where it may be required by Section 6 of 2013 ANSI/ASHRAE/IES 90.1, demand controlled and
dedicated ventilation strategies need not be modeled in the budget building.
(3) Notwithstanding Section 11.5.2.(h.), the budget building fan power may be modeled in accordance with the
requirements of G3.1.2.10 of Appendix G, 2013 ANSI/ASHRAE/IES 90.1.
(4) Notwithstanding footnotes “e” and “f” of Table 11.5.3.A, the budget building water pumps may be modeled in
accordance with the requirements of G3.1.3.5 and G3.1.3.10 of Appendix G, 2013 ANSI/ASHRAE/IES 90.1.
(5) Energy saving credits may be taken for automatic lighting controls that are provided in addition to those required in
Section 9.4.1 of 2013 ANSI/ASHRAE/IES 90.1.
(6) Section 11.4.3.2.A.(1) below shall be added to Section 11.4.3 ” Renewable, Recovered and Purchased Energy
Rates” of 2013 ANSI/ASHRAE/IES 90.1.
11.4.3.2.A Rates for Energy Supplied Back to the Grid System.
(1) Where energy generated by an on-site renewable energy source is supplied back to the grid system, for the
purpose of Section 11, Energy Cost Budget Method, the rates for the energy supplied back to the grid
system shall be assumed to be equal to the rates paid for the same type of purchased energy from the grid
system.
Division 3 SB-10 • Page 37
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2024MMA Supplementary Standard SB-10
Chapter 3
Additional Requirements to the
2015NECB
Section 1.1. Changes and Additional Requirements
1.1.1. Changes and Additional Requirements to the 2015 NECB
1.1.1.1.Application of Chapter 3
(1) Where compliance with energy efficiency requirements is achieved in accordance with Clause 1.1.2.1.(1)(b) of
Chapter 1, energy efficiency of the building is required to conform to the 2015 NECB and this Chapter.
(2) Notwithstanding Sentence 1.1.1.3.(1) of the 2015 NECB, where the requirements of the Building Code or the
requirements of this Division are in conflict with the requirements of the 2015 NECB, the requirements of the Building
Code and the requirements of this Division shall govern.
(3) In the 2015 NECB, references made to the CCBFC NRCC 53301, “National Building Code of Canada” or CCBFC
NRCC 53302, “National Plumbing Code of Canada” are deemed to be references to corresponding provisions of the
Building Code.
1.1.1.2. Division A, Part 1 “Compliance” of the 2015 NECB
(1) Notwithstanding the provisions Sentence 1.1.1.1.(1) of Part 1 of Division A of the 2015 NECB and except as
provided in Division 1 and Chapter 1 of Division 3 of this Supplementary Standard, except for residential occupancies
that are within the scope of Part 9 of Division B of the Building Code, and except for farm buildings, the 2015 NECB
shall apply to all buildings.
1.1.1.3. Division A, Part 2 “Objectives” and Part 3 “Functional Statements” of the
2015 NECB
(1) In addition to objectives and functional statements set out in Parts 2 and 3 of Division A of the 2015 NECB, the
objectives and functional statements set out in the Building Code and attributed to Sentence 12.2.1.2.(2) of Division B of
the Building Code shall also be the objectives and functional statements of the 2015 NECB.
1.1.1.4. Division B, “Acceptable Solutions” of the 2015 NECB
(1) Except as provided in this Chapter, the energy efficiency of a building shall conform to all requirements of
Division B “Acceptable Solutions” of the 2015 NECB and this Chapter.
1.1.1.5. Division C, “Administrative Provisions” of the 2015 NECB
(1) Division C “Administrative Provisions” of the 2015 NECB shall be substituted with the administrative provisions of
the Building Code Act, 1992 and the administrative provisions of Division C of the Building Code.
Page 38 • SB-10 Division 1
2024MMA Supplementary Standard SB-10
1.1.1.6. Enhancements to Division B, Part 3 “Building Envelope” of the 2015 NECB
(1) Where electric space heating is used in a building located in Zone 5, 6, 7A, or 7B, the building envelope
requirements of Zone 7B of the 2015 NECB shall apply regardless of climatic zone.
(2) Table 3.2.2.2. in Division B of the 2015 NECB shall be substituted with the following:
Table SB 3.2.2.2.
(Supersedes Table 3.2.2.2. in the 2015 NECB)
Overall Thermal Transmittance of Above-Ground Opaque Building Assemblies
Forming Part of Sentences 3.2.2.2.(1) and (2)
Heating Degree-Days of Building Location,(1) in Celsius Degree-Days
Above-Ground Opaque Zone 5(2) Zone 6(2) Zone 7A and 7B(2) Zone 8(2)
Building Assembly 3000 to 3999 4000 to 4999 5000 to 6999 ≥ 7000
Maximum Overall Thermal Transmittance, in W/(m2∙K)
Walls 0.278 0.247 0.210 0.183
Roofs 0.156 0.156 0.138 0.121
Floors 0.183 0.183 0.162 0.142
Notes to Table SB 3.2.2.2.:
(1) See Sentence 1.1.4.1.(1).
(2) See Appendix A.
(3) Table 3.2.2.3. in Division B of the 2015 NECB shall be substituted with the following:
Table SB 3.2.2.3.
(Supersedes Table 3.2.2.3. in the 2015 NECB)
Overall Thermal Transmittance of Fenestration
Forming Part of Sentences 3.2.2.3.(2) to (4)
Heating Degree-Days of Building Location,(1) in Celsius Degree-Days
Zone 5(2) Zone 6(2) Zone 7A and 7B(2) Zone 8(2)
Component
3000 to 3999 4000 to 4999 5000 to 6999 ≥ 7000
Maximum Overall Thermal Transmittance, in W/(m2∙K)
All Fenestration 1.9 1.9 1.9 1.4
Notes to Table SB 3.2.2.3.:
(1) See Sentence 1.1.4.1.(1).
(2) See A-Table 3.2.2.2. in Appendix A.
(4) Sentence (5) shall be added to Article 3.2.2.3. of Division B of the 2015 NECB.
3.2.2.3. Thermal Characteristics of Fenestration
(5) The maximum solar heat gain coefficient of fenestration shall comply with Table 3.2.2.3.A.
Division 3 SB-10 • Page 39
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2024MMA Supplementary Standard SB-10
Table 3.2.2.3.A.
Maximum Solar Heat Gain Coefficients
Forming Part of Sentence 3.2.2.3.(4)
Climatic Zone Zone 5 Zone 6 Zone 7A and 7B Zone 8
Occupancy Residential Others Residential Others Residential Others Residential Others
Vertical Fenestration, SHGC 0.40 0.40 0.40 0.40 0.45 0.45 NR NR
Skylights, SHGC 0.40 0.40 0.40 0.40 NR NR NR NR
Column 1 2 3 4 5 6 7 8 9
Notes to Table 3.2.2.3.A.:
NR = No requirement
(5) Table 3.2.2.4. in Division B of the 2015 NECB shall be substituted with the following:
Table SB 3.2.2.4.
(Supersedes Table 3.2.2.4. in the 2015 NECB)
Overall Thermal Transmittance of Doors
Forming Part of Sentences 3.2.2.4.(1) and (2)
Heating Degree-Days of Building Location,(1) in Celsius Degree-Days
Zone 5(2) Zone 6(2) Zone 7A and 7B(2) Zone 8(2)
Component
3000 to 3999 4000 to 4999 5000 to 6999 ≥ 7000
Maximum Overall Thermal Transmittance, in W/(m2∙K)
All Doors 1.9 1.9 1.9 1.4
Notes to Table SB 3.2.2.4.:
(1) See Sentence 1.1.4.1.(1).
(2) See A-Table 3.2.2.2. in Appendix A.
(6) Notwithstanding Sentence 3.3.1.2.(2) of Division B of the 2015 NECB, where Section 3.3. Trade-Off Path of the
2015 NECB is used and where the vertical total fenestration and door area to gross wall area ratio (FDWR) of the
proposed building is less than the maximum FDWR permitted in Sentence 3.2.1.4.(1) of Division B of the 2015 NECB,
the FDWR of the reference building shall be equal to the proposed building.
(7) Notwithstanding of Sentence 3.3.1.2.(2) of Division B of the 2015 NECB, where Section 3.3. Trade-Off Path of the
2015 NECB is used and where the total skylight area to gross roof area ratio of the proposed building is less than the
maximum ratio permitted in Sentence 3.2.1.4.(2) of Division B of the 2015 NECB, the total skylight area to gross roof
area ratio of the reference building shall be equal to the proposed building.
(8) Thermal characteristics of fenestration are permitted to be determined in conformance with;
(a) CAN/CSA-A440.2, “Fenestration Energy Performance”, or
(b) NFRC 100, “Procedure for Determining Fenestration Product U-factors” and NFRC 200, “Procedure for
Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal Incidence”.
Page 40 • SB-10 Division 3
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2024MMA Supplementary Standard SB-10
1.1.1.7. Enhancements to Division B, Part 4 “Lighting” of the 2015 NECB
(1) The calculation of interior lighting power allowance shall be based on the lighting power densities given in Table
SB 4.2.1.5. –2017 or Table SB 4.2.1.6.–2017 of this Chapter.
(2) Except as provided in Sentence (4), for the purpose of Sentence (1), any reference to Table 4.2.1.5. and the lighting
power densities contained in Table 4.2.1.6. of Division B of the 2015 NECB, shall be deemed to be a reference to Table
SB 4.2.1.5.–2017 and lighting power densities in Table SB 4.2.1.6.–2017 of this Chapter.
(3) Lighting power densities listed in Table SB 4.2.1.5.–2017 and Table SB 4.2.1.6.–2017 of this Chapter shall
supersede the lighting power densities listed in Table 4.2.1.5. and Table 4.2.1.6. of Division B of the 2015 NECB.
(4) Minimum lighting control requirements in Table 4.2.1.6. of the 2015 NECB shall apply.
(5) The calculation of exterior lighting power allowance shall be based on Table SB 4.2.3.1.-B–2017, Table SB 4.2.3.1.-
C–2017 and Table SB 4.2.3.1.-D–2017 of this Chapter.
(6) Lighting power allowances listed in Table SB 4.2.3.1.-B–2017, Table SB 4.2.3.1.-C–2017 and Table SB 4.2.3.1.-D–
2017 of this Chapter shall supersede the lighting power allowances listed in Table 4.2.3.1.-B, Table 4.2.3.1.-C and Table
4.2.3.1.-D of the 2015 NECB, respectively.
Division 3 SB-10 • Page 41
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2024MMA Supplementary Standard SB-10
Table SB 4.2.1.5.–2017
Lighting Power Density by Building Type for Use with the Building Area Method
Forming Part of Sentences 4.2.1.5.(1), (4) and (5)
Lighting Power Density,
Building Area Type
W/m2 (W/ft2)
Automotive Facility 7.6 (0.71)
Convention Centre 8.2 (0.76)
Courthouse 9.7 (0.90)
Dining
Bar Lounge / Leisure 9.7 (0.90)
Cafeteria / Fast Food 8.5 (0.79)
Family 8.4 (0.78)
Dormitory 6.6 (0.61)
Exercise Centre 7.0 (0.65)
Fire Station 5.7 (0.53)
Gymnasium 7.3 (0.68)
Health-Care Clinic 8.8 (0.82)
Hospital 11.3 (1.05)
Hotel 8.1 (0.75)
Library 8.4 (0.78)
Manufacturing Facility 9.7 (0.90)
Motel 8.1 (0.75)
Motion Picture Theatre 8.9 (0.83)
Multi-Unit Residential Building 7.3 (0.68)
Museum 11.4 (1.06)
Office 8.5 (0.79)
Storage Garage 1.6 (0.15)
Penitentiary 8.1 (0.75)
Performing Arts Theatre 12.7 (1.18)
Police Station 8.6 (0.80)
Post Office 7.2 (0.67)
Religious Building 10.1 (0.94)
Retail 11.4 (1.06)
School / University 8.7 (0.81)
Sports Arena 9.4 (0.87)
Town Hall 8.6 (0.80)
Transportation 6.6 (0.61)
Warehouse 5.2 (0.48)
Workshop 9.7 (0.90)
Column 1 2
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2024MMA Supplementary Standard SB-10
Table SB 4.2.1.6.–2017(1)
Lighting Power Density Using the Space-by-Space Method
Forming Part of Sentence 4.2.1.6.(1)
Lighting Power Density,
Common Space Types
W/m2 (W/ft2)
Atrium
1.06 per m in height
< 6 m in height
(0.03 per ft in height)
1.06 per m in height
≥ 6 m and ≤ 12 m in height
(0.03 per ft in height)
4.31 + 0.71 per m in height
> 12 m in height
(0.40 + 0.02 per ft in height)
Audience / Seating Area-Permanent
For Auditorium 6.8 (0.63)
For Convention Centre 8.8 (0.82)
For Gymnasium 7.0 (0.65)
For Motion Picture Theatre 12.3 (1.14)
For Penitentiary 3.0 (0.28)
For Performing Arts Theatre 21.8 (2.03)
For Religious Buildings 16.5 (1.53)
For Sports Arena 4.6 (0.43)
Other 4.6 (0.43)
Banking Activity Area and Offices 9.3 (0.86)
Classroom / Lecture / Training
For Penitentiary 14.4 (1.34)
Other 10.3 (0.96)
Computer / Server Room 14.3 (1.33)
Conference / Meeting/Multi-Purpose 11.5 (1.07)
Confinement Cell 8.7 (0.81)
Copy / Print Room 6.0 (0.56)
Corridor / Transition Area
For space designed to ANSI/IES RP- 28(2) (and used primarily by residents) 9.9 (0.92)
For Hospital 9.9 (0.92)
For Manufacturing Facility 3.1 (0.29)
Other 7.1 (0.66)
Courtroom 15.0 (1.39)
Dining Area
For Bar Lounge / Leisure Dining 10.0 (0.93)
For Cafeteria / Fast Food Dining 6.8 (0.63)
For Family Dining 7.6 (0.71)
For space designed to ANSI/IES RP-28(2) (and used primarily by residents) 21.5 (2.00)
For Penitentiary 10.3 (0.96)
Other 6.8 (0.63)
Column 1 2
Division 3 SB-10 • Page 43
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2024MMA Supplementary Standard SB-10
Table SB 4.2.1.6.–2017 (Cont’d)
Lighting Power Density Using the Space-by-Space Method
Forming Part of Sentence 4.2.1.6.(1)
Lighting Power Density,
Building-Specific Space Types
W/m2 (W/ft2)
Dressing / Fitting Room For Performing Arts Theatre 6.6 (0.61)
Electrical / Mechanical Room 4.6 (0.43)
Emergency Vehicle Garage 4.4 (0.41)
Food Preparation Area 11.4 (1.06)
Guest Room 8.3 (0.77)
Laboratory
For Classrooms 12.9 (1.20)
Other 15.6 (1.45)
Laundry / Washing Area 4.6 (0.43)
Loading Dock, Interior 6.2 (0.58)
Lobby
For space designed to ANSI/IES RP-28(2) (and used primarily by residents) 21.8 (2.03)
For Elevator 7.3 (0.68)
For Hotel 11.4 (1.06)
For Motion Picture Theatre 4.8 (0.45)
For Performing Arts Theatre 18.3 (1.70)
Other 10.8 (1.00)
Locker Room 5.2 (0.48)
Lounge / Break Room
For Healthcare Facility 8.4 (0.78)
Other 6.7 (0.62)
Office
Enclosed 10.0 (0.93)
Open Plan 8.7 (0.81)
Storage Garage, Interior 1.5 (0.14)
Pharmacy Area 14.4 (1.34)
Sales Area 13.1 (1.22)
Seating Area, General 4.6 (0.43)
Stairway 6.2 (0.58)
Storage Room ≥ 5 m2 and < 100 m2 6.8 (0.63)
Storage Room < 5 m2 10.4 (0.97)
Vehicular Maintenance Area 6.0 (0.56)
Washroom
For care occupancy designed to ANSI/IES RP-28(2) (and used primarily by
13.1 (1.22)
residents)
Other 9.1 (0.85)
Workshop 12.3 (1.14)
Column 1 2
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2024MMA Supplementary Standard SB-10
Table SB 4.2.1.6.–2017 (Cont’d)
Lighting Power Density Using the Space-by-Space Method
Forming Part of Sentence 4.2.1.6.(1)
Lighting Power Density,
Building-Specific Space Types
W/m2 (W/ft2)
Care occupancy designed to ANSI/IES RP-28(2)
For Chapel (used primarily by residents) 11.4 (1.06)
For Recreation Room (used primarily by residents) 19.4 (1.80)
Convention Centre
Exhibit Space 9.5 (0.88)
Dormitory
Living Quarters 5.8 (0.54)
Fire Station
Sleeping Quarters 2.2 (0.20)
Gymnasium / Fitness Centre
Exercise Area 5.4 (0.50)
Playing Area 8.8 (0.82)
Healthcare Facility
Exam / Treatment Room 18.1 (1.68)
Medical Supply Room 5.8 (0.54)
Nursery 10.8 (1.00)
Nurses' Station 8.7 (0.81)
Operating Room 23.4 (2.17)
Patient Room 6.7 (0.62)
Physical Therapy 9.0 (0.84)
Imaging Room 11.4 (1.06)
Recovery 11.1 (1.03)
Library
Reading Area 8.8 (0.82)
Stacks 12.9 (1.20)
Manufacturing Facility
Detailed Manufacturing Area 10.0 (0.93)
Equipment Room 7.0 (0.65)
Extra High Bay (> 15 m floor to ceiling height) 11.3 (1.05)
High Bay (7.5 m to 15 m floor to ceiling height) 8.1 (0.75)
Low Bay (< 7.5 m floor to ceiling height) 10.3 (0.96)
Column 1 2
Division 3 SB-10 • Page 45
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2024MMA Supplementary Standard SB-10
Table SB 4.2.1.6.–2017 (Cont’d)
Lighting Power Density Using the Space-by-Space Method
Forming Part of Sentence 4.2.1.6.(1)
Lighting Power Density,
Building-Specific Space Types
W/m2 (W/ft2)
Museum
General Exhibition 11.3 (1.05)
Restoration 9.2 (0.85)
Post Office 7.3 (0.68)
Sorting Area
Religious Building
Fellowship Hall 5.9 (0.55)
Worship / Pulpit / Choir 16.5 (1.53)
Retail Facilities
Dressing / Fitting Room 5.4 (0.50)
Mall Concourse 9.7 (0.90)
Sports Arena – Playing Area
Class IV Facility 12.2 (1.13)
Class III Facility 18.3 (1.70)
Class II Facility 21.1 (1.96)
Class I Facility 26.6 (2.47)
Transportation Facility
Baggage / Carousel Area 4.8 (0.45)
Airport Concourse 3.3 (0.31)
Terminal Ticket Counter 6.7 (0.62)
Warehouse
Small, Hand-Carried Items 7.4 (0.69)
Medium To Bulky, Palletized Items 3.8 (0.35)
Column 1 2
Notes to Table SB 4.2.1.6.–2017:
(1) Terms shall have the same meanings as they have in 2015 NECB or Chapter (2).
(2) BSR/IES RP-28-16, “Lighting and the Visual Environment for Seniors and the Low Vision Population”.
Page 46 • SB-10 Division 3
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2024MMA Supplementary Standard SB-10
TABLE SB 4.2.3.1.-B–2017
(Supersedes Table 4.2.3.1.-B in the 2015 NECB)
Basic Site Allowances for Exterior Lighting
Forming Part of Sentences 4.2.3.1.(2) and (3)
Basic Site Allowance According to Lighting Zone
Zone 0 Zone 1 Zone 2 Zone 3 Zone 4
No allowance 350 W 400 W 500 W 900 W
Column 1 2 3 4 5
TABLE SB 4.2.3.1.-C–2017
(Supersedes Table 4.2.3.1.-C in the 2015 NECB)
Lighting Power Allowances for Specific Building Exterior Applications
Forming Part of Sentences 4.2.3.1.(3) and (4)
Exterior Application Zone 0 Zone 1 Zone 2 Zone 3 Zone 4
1.1 W/m2 (0.10 W/ft2) 1.6 W/m2 (0.15 W/ft2) 2.2 W/m2 (0.20 W/ft2)
for each illuminated for each illuminated for each illuminated
Building façades wall or surface or wall or surface or wall or surface or
No allowance No allowance
(façade lighting) 8.2 W/m (2.5 W/ft) 12.3 W/m (3.75 W/ft) 16.4 W/m (5.0 W/ft)
for each illuminated for each illuminated for each illuminated
wall or surface length wall or surface length wall or surface length
135 W per location 135 W per location 135 W per location 135 W per location
Automated teller
plus 45 W per plus 45 W per plus 45 W per plus 45 W per
machines (ATM) and No allowance
additional ATM per additional ATM per additional ATM per additional ATM per
night depositories
location location location location
Entrances and
5.4 W/m2 (0.50 W/ft2) 5.4 W/m2 (0.50 W/ft2) 5.4 W/m2 (0.50 W/ft2) 5.4 W/m2 (0.50 W/ft2)
gatehouse inspection
No allowance of covered and of covered and of covered and of covered and
stations at guarded
uncovered area uncovered area uncovered area uncovered area
facilities
Loading areas for law
enforcement, fire, 3.8 W/m2 (0.35 W/ft2) 3.8 W/m2 (0.35 W/ft2) 3.8 W/m2 (0.35 W/ft2) 3.8 W/m2 (0.35 W/ft2)
ambulance, and other No allowance of covered and of covered and of covered and of covered and
emergency service uncovered area uncovered area uncovered area uncovered area
vehicles
Drive-up 200 W per drive- 200 W per drive- 200 W per drive- 200 W per drive-
No allowance
windows/doors through through through through
Parking near 24-hour 400 W per drive- 400 W per drive- 400 W per drive- 400 W per drive-
No allowance
retail entrances through through through through
A single luminaire of
60 W or less may be
Roadway/parking
installed for each
entry, trail head, and
roadway/parking
toilet facility, or other
entry, trail head, and No allowance No allowance No allowance No allowance
locations approved
toilet facility, or other
by the authority
locations approved
having jurisdiction.
by the authority
having jurisdiction
Column 1 2 3 4 5 6
Division 3 SB-10 • Page 47
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2024MMA Supplementary Standard SB-10
TABLE SB 4.2.3.1.-D–2017
(Supersedes Table 4.2.3.1.-D in the 2015 NECB)
Lighting Power Allowances for General Building Exterior Applications
Forming Part of Sentence 4.2.3.1.(4)
Lighting Power Allowances According to Lighting Zone
Exterior Application
Zone 0 Zone 1 Zone 2 Zone 3 Zone 4
Uncovered Parking Areas
Parking areas and 0.32 W/m2 0.43 W/m2 0.65 W/m2 0.86 W/m2
No allowance
drives (0.03 W/ft2) (0.04 W/ft2) (0.06 W/ft2) (0.08 W/ft2)
Building Grounds
Walkways less than 1.6 W/m 1.6 W/m 2.0 W/m 2.3 W/m
No allowance
3 m (10 ft) wide (0.50 W/ft) (0.50 W/ft) (0.60 W/ft) (0.70 W/ft)
Walkways 3 m (10 ft) 1.1 W/m2 1.1 W/m2 1.2 W/m2 1.5 W/m2
No allowance
wide or greater (0.10 W/ft2) (0.10 W/ft2) (0.11 W/ft2) (0.14 W/ft2)
1.1 W/m2 1.1 W/m2 1.2 W/m2 1.5 W/m2
Plaza areas No allowance
(0.10 W/ft2) (0.10 W/ft2) (0.11 W/ft2) (0.14 W/ft2)
6.5 W/m2 7.5 W/m2 7.5 W/m2 7.5 W/m2
Stairways No allowance
(0.60 W/ft2) (0.70 W/ft2) (0.70 W/ft2) (0.70 W/ft2)
1.3 W/m2 1.3 W/m2 1.5 W/m2 2.3 W/m2
Pedestrian Tunnels No allowance
(0.12 W/ft2) (0.12 W/ft2) (0.14 W/ft2) (0.21 W/ft2)
0.32 W/m2 0.43 W/m2 0.43 W/m2 0.43 W/m2
Landscaping No allowance
(0.03 W/ft2) (0.04 W/ft2) (0.04 W/ft2) (0.04 W/ft2)
Building Entrances, Exits, and Loading Docks
Pedestrian and
46 W/m (14 W/ft) 46 W/m (14 W/ft) 69 W/m (21 W/ft) 69 W/m (21 W/ft)
vehicular entrances No allowance
of door width of door width of door width of door width
and exits
2.1 W/m2 2.7 W/m2 4.3 W/m2 4.3 W/m2
Entry canopies No allowance
(0.20 W/ft2) (0.25 W/ft2) (0.40 W/ft2) (0.40 W/ft2)
5.4 W/m2 5.4 W/m2 5.4 W/m2 5.4 W/m2
Loading docks No allowance
(0.50 W/ft2) (0.50 W/ft2) (0.50 W/ft2) (0.50 W/ft2)
Sales Canopies
Free standing and 4.3 W/m2 4.3 W/m2 6.5 W/m2 7.5 W/m2
No allowance
attached (0.40 W/ft2) (0.4 W/ft2) (0.60 W/ft2) (0.70 W/ft2)
Outdoor Sales
Open areas
6.5 W/m2 6.5 W/m2 6.5 W/m2 6.5 W/m2
(including vehicle No allowance
(0.60 W/ft2) (0.60 W/ft2) (0.60 W/ft2) (0.60 W/ft2)
sales lots)
Street frontage for
vehicle sales lots in 23 W/m 23 W/m 69 W/m
No allowance No allowance
addition to “open (7 W/ft) (7 W/ft) (21 W/ft)
area” allowance
Column 1 2 3 4 5 6
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2024MMA Supplementary Standard SB-10
1.1.1.8. Enhancements to Division B, Part 5 “Heating, Ventilating and Air-
Conditioning Systems” of the 2015 NECB
(1) Article 5.2.10.1. in Division B of the 2015 NECB shall be replaced with the following:
5.2.10.1. Heat-Recovery Systems
(1) Except as provided in Sentences (3) and (4), each exhaust air system shall have an energy recovery system
when the system's supply airflow rate exceeds the value listed in Tables SB 5.2.10.1.A–2017 and
SB 5.2.10.1.B–2017, based on the operation, climate zone and percentage of outdoor airflow rate at design
conditions.
(2) Heat recovered in accordance with Sentence (1) shall be used in building systems.
(3) The systems need not comply with Sentence (1), where the system
(a) is a specialized exhaust system, such as one that is used to exhaust smoke, grease-laden vapours, or toxic,
flammable, paint, or corrosive fumes or dust,
(b) serves spaces that are not cooled and are heated to less than 16ºC,
(c) is designed in such a way that the largest source of air exhausted at a single location at the building exterior
is less than 75% of the design outdoor airflow rate.
(4) Dwelling units shall be equipped with heat recovery systems in accordance with Article 5.2.10.4. of the 2015
NECB.
Table SB 5.2.10.1.A–2017
Exhaust Air Energy Recovery Requirements for Ventilation Systems Operating Less than 8000 Hours per Year
Forming Part of Sentence 5.2.10.1.(1)
Percent of Outdoor Air at Full Design Airflow Rate
Climate ≥ 10% and ≥ 20% and ≥ 30% and ≥ 40% and ≥ 50% and ≥ 60% and ≥ 70% and
≥ 80%
Zone < 20% < 30% < 40% < 50% < 60% < 70% < 80%
Design Supply Fan Airflow Rate (L/s)
5 ≥ 12271 ≥ 7551 ≥ 2596 ≥ 2124 ≥ 1652 ≥ 944 ≥ 472 ≥0
6 ≥ 12271 ≥ 7551 ≥ 2596 ≥ 2124 ≥ 1652 ≥ 944 ≥ 472 ≥0
7A & 7B ≥ 2124 ≥ 1888 ≥ 1180 ≥ 472 ≥0 ≥0 ≥0 ≥0
8 ≥ 2124 ≥ 1888 ≥ 1180 ≥ 472 ≥0 ≥0 ≥0 ≥0
Col. 1 2 3 4 5 6 7 8 9
Table SB 5.2.10.1.B–2017
Exhaust Air Energy Recovery Requirements for Ventilation Systems Operating Greater than or Equal to 8000 Hours per Year
Forming Part of Sentence 5.2.10.1.(1)
Percent of Outdoor Air at Full Design Airflow Rate
Climate ≥ 10% and ≥ 20% and ≥ 30% and ≥ 40% and ≥ 50% and ≥ 60% and ≥ 70% and
≥ 80%
Zone < 20% < 30% < 40% < 50% < 60% < 70% < 80%
Design Supply Fan Airflow Rate (L/s)
All Zones >0 >0 >0 >0 >0 >0 >0 >0
Col. 1 2 3 4 5 6 7 8 9
Division 3 SB-10 • Page 49
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2024MMA Supplementary Standard SB-10
(5) Energy recovery systems required by Sentence (1) shall have at least 55% energy recovery effectiveness
determined as a change in enthalpy of the outdoor air supply equal to 55% of the difference between the
outdoor air and return air enthalpies at design conditions.
(6) At airflow rates not less than the system design capacity, the energy recovery effectiveness of an energy
recovery apparatus referred to in Sentence (1) shall be determined in conformance with
(a) the test method described in ANSI/AHRI 1060-2009, “Performance Rating of Air-to-Air Exchangers for
Energy Recovery Ventilation”,
(b) the test method described in CSA C439-09 “Standard Laboratory Methods of Test for Rating the
performance of Heat/Energy-Recovery Ventilators”, or
(c) the test method described in ASHRAE 84-2008, “Method of Testing Air-to-Air Heat/Energy Exchangers”.
(7) Provisions shall be made to bypass or control the energy recovery system to permit air economizer operation as
required by Article 5.2.2.8.
(2) Sentence 5.2.11.5.(3) and its reference in Sentence 5.2.11.5.(1) in Division B of the 2015 NECB shall be deleted.
(3) In addition to Table 5.2.12.1. in the 2015 NECB, the minimum equipment efficiency of a gas-fired boiler shall
comply with the value required in Table SB 5.2.12.1.A–2017.
Table SB 5.2.12.1.A–2017
Minimum Equipment Efficiency for Gas Boilers
Forming Part of Sentence 5.2.12.1.(1)
Equipment Heating Capacity, kW (Btu/h) Performance Required
< 88 (< 300,000) 90% AFUE
Gas boilers, hot water ≥ 88 and < 733
90% Et
(≥ 300,000 and < 2,500,000)
Column 1 2 3
1.1.1.9. Enhancements to Division B, Part 6 “Service Water Systems” of the
2015 NECB
(1) In addition to Table 6.2.2.1. in the 2015 NECB, a gas-fired storage water heater with an input capacity of 22 kW or
less shall comply with Table SB 6.2.2.1.A–2017.
(2) Except where 25% of the annual service water heating requirement is provided by site-recovered energy and except
for water heaters installed in individual dwelling units, where a service hot water system has a total installed gas water
heating input capacity of 293 kW or greater, the gas service water heating equipment shall have a minimum thermal
efficiency (Et) of 90%.
Table SB 6.2.2.1.A –2017
Minimum Equipment Efficiency for Gas Water Heaters
Forming Part of Sentence 6.2.2.1.(1)
Component Input, kW (Btu/h) Performance Requirement
0.7-0.00189V (V in U.S.gallons) EF
Gas water heaters ≤ 22 (≤ 75,000)
0.7-0.0005V (V in litres) EF
Column 1 2 3
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2024MMA Supplementary Standard SB-10
1.1.1.10. Enhancements to Division B, Part 7 “Electrical Power Systems and
Motors” of the 2015 NECB (See Appendix A.)
(1) Article 7.2.1.1. of Division B of the 2015 NECB shall be replaced with the following:
7.2.1.1. Facilitation of Monitoring
(1) Except as provided in Sentence (3), the building shall be designed and constructed to facilitate future
installation of means to measure and monitor the electrical consumption of each of the following separately:
(a) total electrical energy,
(b) HVAC systems,
(c) interior lighting,
(d) exterior lighting, and
(e) receptacle circuits.
(2) Except as provided in Sentence (3), the electrical distribution systems of buildings with tenants or dwelling
units shall be designed and constructed to facilitate future installation of means to measure and monitor the
electrical consumption of the total building and of each individual tenant or dwelling unit, excluding shared
systems.
(3) The following buildings and electrical energy end-uses need not meet the requirements of Sentence (1):
(a) buildings with a floor area of less than 2320 m 2,
(b) individual tenant spaces with floor areas of less than 930 m 2,
(c) residential building with less than 930 m2 of common area, and
(d) critical circuit and Equipment branches in health care facilities.
(2) Sentence (2) shall be added to Article 7.2.4.1. of Division B of the 2015 NECB.
7.2.4.1. Efficiency
(2) Notwithstanding Sentence (1), where the minimum efficiency requirements of an electric motor is covered
under an applicable Ontario Energy Efficiency Regulation, it shall meet the requirements of the Ontario
Regulation and shall be deemed to be in compliance with the requirements of Sentence (1).
1.1.1.11.Whole Building Energy Monitoring (See Appendix A.)
(1) The building shall be designed and constructed to facilitate future installation of means to measure and monitor
energy consumption of the following types of energy supplied by an energy provider or a plant that is not within the
building:
(a) natural gas,
(b) fuel oil,
(c) propane,
(d) steam,
(e) chilled water, and
(f) hot water.
Division 3 SB-10 • Page 51
2024MMA Supplementary Standard SB-10
1.1.1.12. Enhancements to Division B, Part 8 “Building Energy Performance
Compliance Path” of the 2015 NECB
(1) Sentences (9) and (10) shall be added to Article 8.4.4.3. of Division B of the 2015 NECB.
8.4.4.3. Building Envelope Components
(9) Where the vertical total fenestration and door area to gross wall area ratio (FDWR) of the proposed building is
less than the maximum FDWR permitted in Sentence 3.2.1.4.(1), the FDWR of the reference building shall be equal
to the proposed building.
(10) Where the total skylight area to gross roof area ratio of the proposed building is less than the maximum ratio
permitted in Sentence 3.2.1.4.(2), the total skylight area to gross roof area ratio of the reference building shall be
equal to the proposed building.
Page 52 • SB-10 Division 3
2024MMA Supplementary Standard SB-10
e1
Division 4
Reserved
Division 4 SB-10 • Page 53
2024MMA Supplementary Standard SB-10
Division 5
Buildings of Non-Residential Occupancy
Within the Scope of Part 9
1.1.Buildings of Non-Residential Occupancy
1.1.1. Buildings of Non-Residential Occupancy .................................................................................................................................................. 55
Page 54 • SB-10 Division 4
2024MMA Supplementary Standard SB-10
Page 56 • SB-10 Division 5
2024MMA Supplementary Standard SB-10
Division 5
Buildings of Non-Residential Occupancy
Within the Scope of Part 9
Section 1.1. Buildings of Non-Residential Occupancy
1.1.1.1.Application
e1 (1) Reserved.
e1 (2) Reserved.
(3) Except as provided in Sentences (2) and (3), this Division applies to the energy efficiency of buildings or parts of
buildings where the building or part of the building
(a) is within the scope of Part 9 of Division B of the Building Code,
(b) does not contain a residential occupancy,
(c) does not use electric space heating, and
(d) is intended for occupancy on a continuing basis during the winter months.
(4) Where the ratio of the gross area of fenestration to the gross area of exterior wall measured from grade to the top of
the most upper ceiling exceeds 40%, or the ratio of the gross skylight areas to gross ceiling area exceeds 3%, the building
envelope shall comply with Article 1.1.2.1. of Chapter 1 of Division 3.
(5) Buildings are exempt from compliance with this Division where they meet the exemptions described in
Article 1.2.1.1. of Chapter 1 of Division 3.
1.1.1.2.Building Envelope Requirements
(1) Except as permitted in Sentence (2), the exterior building envelope shall comply with the requirements of
Table 1.1.1.2.
(2) Except for doors, the opaque surfaces shall comply with
(a) minimum RSI value of the added insulation in framing cavities and continuous insulation required in Table 1.1.1.2.,
or
(b) maximum overall thermal transmittance U-value for the entire assembly required in Table 1.1.1.2., where U-value is
provided.
(3) Where the top of a foundation wall is less than 1 200 mm above the adjoining ground level, those portions of the
foundation wall that are above ground may be insulated to the level required for the below grade portion of the foundation
wall.
(4) The ratio of visible transmittance to solar heat gain coefficient (VT/SHGC) for vertical fenestration assemblies shall
be 1.10 or greater.
Division 5 SB-10 • Page 57
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2024MMA Supplementary Standard SB-10
Table 1.1.1.2.
Building Envelope Requirements Based on Degree-Day Zones(1) (SI)
Forming Part of Sentences 1.1.1.2.(1) and (2)
Zone 1 Zone 2
Less Than 5000 Degree-Days 5000 or More Degree-Days
Opaque Elements
Assembly Insulation Assembly Insulation
Max. U-Value(1) Min. RSI-Value Max. U-Value(1) Min. RSI-Value
Roofs
Without Attic Space - Insulation Above Deck U-0.164 6.2 ci U-0.143 7.0 ci
With Attic Space and Other U-0.107 10.6 U-0.087 12.5
Walls, Above Grade
All Types U-0.250 2.3 + 2.6 ci U-0.250 2.3 + 2.6 ci
Wall, Below Grade
All Types C-0.284(2) 3.5 ci C-0.284(2) 3.5 ci
Exposed Floors
Mass U-0.261 3.3 ci U-0.215 4.1 ci
Lightweight Framing U-0.164 6.7(3) + 0.7 ci U-0.164 6.7(3) + 0.7 ci
Slab-On-Grade Floors
Unheated 2.6 for 1200 mm 2.6 for 1200 mm
Heated 1.8 full slab 1.8 full slab
Opaque Doors U-2.56 U-2.56
Assembly Assembly Assembly Assembly
Fenestration
Max. U-Value(1) Max. SHGC Max. U-Value(1) Max. SHGC
Vertical Fenestration, 0% - 40% of Wall
All Types Except Entrance Doors U-2.15 SHGC-0.40 U-1.94 SHGC-0.45
Entrance Doors U-3.94 SHGC-0.40 U-3.94 SHGC-0.45
Skylight, 0% - 3% of Roof
All Types U-2.56 SHGC-0.40 U-2.56 NR
Column 1 2 3 4 5
Notes to Table 1.1.1.2.:
The following definitions apply: ci = continuous insulation
(1) The overall thermal transmittance value of the entire assembly, includes air films.
(2) C-Value is overall thermal conductance of the assembly but it does not include soil or air films.
(3) Where the floor framing depth is 254 mm or less, the insulation between the framing members is permitted to meet a minimum
RSI-Value of 5.28.
Page 58 • SB-10 Division 5
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2024MMA Supplementary Standard SB-10
Table 1.1.1.2.
Building Envelope Requirements Based on Degree-Day Zones(1) (I-P)
Forming Part of Sentences 1.1.1.2.(1) and (2)
Zone 1 Zone 2
Less Than 5000 Degree-Days 5000 or More Degree-Days
Opaque Elements
Assembly Insulation Assembly Insulation
Max. U-Value(1) Min. R-Value Max. U-Value(1) Min. R-Value
Roofs
Without Attic Space - Insulation Above Deck U-0.029 R-35 ci U-0.025 R-40 ci
With Attic Space and Other U-0.019 R-60 U-0.015 R-71
Walls, Above Grade
All Types U-0.044 R-13 + R-15 ci U-0.044 R-13 + R-15 ci
Wall, Below Grade
All Types C-0.050(2) R-20 ci C-0.050(2) R-20 ci
Exposed Floors
Mass U-0.046 R-18.7 ci U-0.038 R-23.4 ci
Lightweight Framing U-0.029 R-38(3) + R-4 ci U-0.029 R-38(3) + R-4 ci
Slab-On-Grade Floors
Unheated R-15 for 48 in. R-15 for 48 in.
Heated R-10 full slab R-10 full slab
Opaque Doors U-0.45 U-0.45
Assembly Assembly Assembly Assembly
Fenestration
Max. U-Value(1) Max. SHGC Max. U-Value(1) Max. SHGC
Vertical Fenestration, 0% - 40% of Wall
All Types Except Entrance Doors U-0.38 SHGC-0.40 U-0.34 SHGC-0.45
Entrance Doors U-0.69 SHGC-0.40 U-0.69 SHGC-0.45
Skylight, 0% - 3% of Roof
All Types U-0.45 SHGC-0.40 U-0.45 NR
Column 1 2 3 4 5
Notes to Table 1.1.1.2.:
The following definitions apply: ci = continuous insulation
(1) The overall thermal transmittance value of the entire assembly, includes air films.
(2) C-Value is overall thermal conductance of the assembly but it does not include soil or air films.
(3) Where the floor framing depth is 10 inches or less, the insulation between the framing members is permitted to meet a minimum R-Value
of R-30.
Division 5 SB-10 • Page 59
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
1.1.1.3.Air Infiltration
(1) Where a building component or assembly separates interior conditioned space from exterior space, interior space
from ground or environmentally dissimilar interior spaces, the component or assembly shall contain an air barrier system
conforming to the applicable requirements of Part 5 or Section 9.25. of Division B of the Building Code.
1.1.1.4. Heating, Ventilating and Air-Conditioning
(1) A heating, ventilating and air-conditioning system that serves more than one heating, ventilating and air-
conditioning zone shall conform to Article 1.1.2.1. of Chapter 1 of Division 3 of this Supplementary Standard.
(2) Sentences (3) to (11) and Article 1.1.1.5. apply to a heating, ventilating and air-conditioning system that serves a
single heating, ventilating and air-conditioning zone.
(3) The minimum efficiency of heating, ventilating and air-conditioning equipment shall conform to the requirements of
Sentence 1.1.2.1.(1) of Chapter 1 of Division 3 of this Supplementary Standard.
(4) An air-conditioning system with a cooling capacity of 15.8 kW (54,000 Btu/h) or more shall have an economizer,
(a) controlled by appropriate high limit shut-off control, and
(b) equipped with either barometric or powered relief sized to prevent excess pressurization of the building.
(5) Outdoor air dampers for economizer use shall be provided with blade and jamb seals.
(6) Except where the largest exhaust at a single point is less than 75% of the outdoor air, a heat recovery ventilator with
a recovery effectiveness of 55% or more at the outside winter design temperature shall be provided where the quantity of
the outdoor air supplied to the air duct distribution system
(a) is more than 1400 L/s (3000 cfm), or
(b) operates 8000 hours per year or more.
(7) Where a heat recovery ventilator is installed, the system shall have provisions to bypass or control the heat recovery
ventilator to permit operation of the air economizer.
(8) A heating, ventilating and air-conditioning system shall be controlled by a manual changeover or dual setpoint
thermostat.
(9) Except for a system requiring continuous operation, a heating, ventilating and air-conditioning system that has a
cooling or heating capacity greater than 4.4 kW (15,000 Btu/h) and a supply fan motor rated for more than 0.5 kW shall
be provided with a time clock that,
(a) is capable of starting and stopping the system under different schedules for seven different day-types per week,
(b) is capable of retaining programming and time setting during a loss of power for a period of 10 hours or more,
(c) includes an accessible manual override that allows temporary operation of the system for up to two hours,
(d) is capable of temperature setback down to 13°C (55°F) during off-hours, and
(e) is capable of temperature setup to 32°C (90°F) during off-hours.
(10) Where separate heating and cooling equipment serves the same temperature zone, thermostats shall be interlocked to
prevent simultaneous heating and cooling.
(11) A heating, ventilating and air-conditioning system with a design supply air capacity greater than 5000 L/s
(10,600 cfm) shall have optimum start controls.
Page 60 • SB-10 Division 5
2024MMA Supplementary Standard SB-10
1.1.1.5. Ducts, Plenums and Piping
(1) A duct or a plenum that is not protected by an insulated exterior wall or that is exposed to an unheated space shall be
(a) sealed in accordance with SMACNA, “HVAC Duct Construction Standards - Metal and Flexible”, to minimize air
leakage, and
(b) insulated to provide a thermal resistance of not less than RSI 1.4 (R8).
(2) A supply or exhaust duct or plenum that is located in a conditioned space shall be sealed in accordance with
SMACNA, “HVAC Duct Construction Standards - Metal and Flexible”, to minimize air leakage.
(3) Except for piping within prefabricated equipment, piping used for steam, hot water heating or cooling shall be
insulated in accordance with Table 1.1.1.5.
(4) Insulation exposed to weather shall be protected by a covering such as aluminum, sheet metal, painted canvas or
plastic.
(5) An exhaust duct with a design capacity of more than 140 L/s (300 cfm) on a heating, ventilating and air-
conditioning system that does not operate continuously shall be equipped with a gravity or motorized damper that will
automatically shut when the system is not in operation.
(6) An air duct distribution system shall be balanced in the following sequence:
1. Minimize throttling losses.
2. If the fan is rated for more than 0.75 kW, adjust the fan speed to meet design flow conditions.
(7) A hydronic system shall be proportionately balanced to minimize throttling losses.
Table 1.1.1.5.
Minimum Thickness of Pipe Insulation(1)
Forming Part of Sentences 1.1.1.5.(3) and 1.1.1.6.(2)
Nominal Pipe Size Not More than 40 mm Nominal Pipe Size More than 40 mm
Use of Pipe
Minimum Pipe Insulation Thickness, mm Minimum Pipe Insulation Thickness, mm
Steam 64 76
Hot water heating 38 51
40ºC to 60ºC 25 38
Domestic hot water
61ºC and higher 38 51
Cooling 13 25
Column 1 2 3
Notes to Table 1.1.1.5.:
(1) Insulation material shall have a thermal conductivity of not more than 0.042 W/(m•°C).
Division 5 SB-10 • Page 61
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
1.1.1.6.Service Water Heating
(1) The minimum efficiency of water heating equipment used solely for heating potable water and hot water storage
tanks shall conform to the requirements of Sentence 1.1.2.1.(1) of Chapter 1 of Division 3 of this Supplementary
Standard.
(2) Domestic hot water heating piping shall be insulated in accordance with Table 1.1.1.5. if it is,
(a) recirculating system piping,
(b) located within the first 2.5 m (8 ft) of outlet piping in a constant temperature non-recirculating storage system,
(c) an inlet pipe located between the storage tank and a heat trap in a non-recirculating storage system, or
(d) a pipe that is externally heated by methods such as a heat trace or impedance heating.
(3) A hot water storage tank shall be provided with a temperature control to permit adjustment of the water storage
temperature.
(4) An automatic time switch or other control that can be set to switch off the usage temperature maintenance system
during extended periods when hot water is not required shall be installed in a domestic hot water system that is designed
to maintain usage temperatures in hot water pipes such as recirculating hot water systems or heat trace.
(5) If a recirculating pump is used to maintain storage tank water temperature, the pump shall be equipped with a
control to limit its operation to a period from the start of the heating cycle to a maximum of five minutes after the end of
the heating cycle.
(6) In a washroom located in a public facility, a device shall be provided to control the maximum temperature of water
delivered from a lavatory faucets to not more than 43°C (110°F).
(7) A vertical pipe riser that serves a storage water heater or a storage tank shall have heat traps on both the inlet and
outlet piping as close as practical to the tank if,
(a) the riser is in a non-recirculating system, and
(b) the storage water heater or the storage tank does not have integral heat traps.
(8) A system that provides both space heating and domestic water heating shall conform to the minimum efficiency
values required by Clause 1.1.2.1.(1)(c) of Chapter 1 of Division 3 of this Supplementary Standard.
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
1.1.1.7.Lighting
(1) Except as provided in Sentence (2), Articles 1.1.1.8. to 1.1.1.11. apply to,
(a) interior spaces of a building,
(b) exterior building features, including facades, illuminated roofs, architectural features, entrances, exits, loading docks
and illuminated canopies, and
(c) exterior building ground lighting provided through the building's electrical service.
(2) Articles 1.1.1.8. to 1.1.1.11. do not apply to emergency lighting that is automatically turned off during the normal
use of the building.
(3) Except as provided in Sentence (4), luminaires designed for use with one or three linear fluorescent lamps greater
than 30 W each shall use two-lamp tandem-wired ballasts in place of single-lamp ballasts when two or more luminaires
are in the same space and on the same control device.
(4) The tandem wiring required by Sentence (3) is not required for,
(a) recessed luminaires located more than 3 m apart, measured centre to centre,
(b) surface mounted or pendant luminaires that are not continuous,
(c) luminaires that use single-lamp high-frequency electronic ballasts,
(d) luminaires that use three-lamp high-frequency electronic or three-lamp electromagnetic ballasts, and
(e) luminaires on emergency circuits.
Page 62 • SB-10 Division 5
1.1.1.8.Interior Lighting
(1) The interior lighting power allowance for a building is the sum of the lighting power allowances, in watts, of all
building area types and shall include all permanently installed general, task and furniture lighting systems and luminaires.
(2) The interior lighting power allowance shall be determined by multiplying the lighting power density given in
Table 1.1.1.8. by the gross lighted areas of the building area type.
(3) The installed interior lighting power shall not exceed the interior lighting power allowance.
(4) Except as provided in Sentence (5), the installed interior lighting power shall include all power used by luminaires,
including lamps, ballasts, current regulators and control devices.
(5) The following lighting equipment and applications shall not be considered when determining the installed interior
lighting power or the interior lighting power allowance:
(a) lighting that is integral to equipment or instrumentation and is installed by its manufacturer,
(b) lighting specifically designed for use only during medical or dental procedures and lighting integral to medical
equipment,
(c) lighting that is integral to both open and glass-enclosed refrigerator and freezer cases,
(d) lighting that is integral to food warming and food preparation equipment,
(e) lighting for plant growth or maintenance,
(f) lighting in spaces specifically designed for use by persons with low or no vision,
(g) lighting in retail display windows if the display area is enclosed by ceiling-height partitions,
(h) lighting in interior spaces that have been specifically designated as a heritage building,
(i) lighting that is an integral part of advertising or directional signage,
(j) exit signs,
(k) lighting that is displayed for sale, and
(l) educational lighting demonstration systems.
(6) Trade-offs among building area types are permitted provided that the total installed interior lighting power does not
exceed the interior lighting power allowance.
Table 1.1.1.8.
Interior Lighting Power Densities
Forming Part of Sentence 1.1.1.8.(2)
Lighting Power Density,
Building Area Type
W/m2 (W/ft2)
Automotive Facility 7.6 (0.71)
Fast Food 8.5 (0.79)
Fire Station 5.7 (0.53)
Health Care Offices - Clinic 8.8 (0.82)
Manufacturing Facility 9.7 (0.90)
Office 8.5 (0.79)
Police Station (without detention quarters) 8.6 (0.80)
Post Office 7.2 (0.67)
Retail 11.4 (1.06)
Storage Garage 1.6 (0.15)
Warehouse 5.2 (0.48)
Workshop 9.7 (0.90)
Column 1 2
Division 5 SB-10 • Page 63
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
1.1.1.9.Interior Lighting Controls
(1) Except as provided in Sentence (2), there shall be one or more manual lighting controls in each space that controls
all of the lighting in the space.
(2) Sentence (1) does not apply to,
(a) lighting intended for 24-hour operation,
(b) emergency lighting, or
(c) lighting for spaces where an automatic shut-off would endanger safety or security.
(3) Each control device required in Sentence (1) shall be readily accessible and located so that the occupants can see the
controlled lighting when operating the control device.
(4) For the purpose of Sentence (1), remote location of the control device shall be permitted for reasons of safety or
security when the control device is clearly labelled to identify the controlled lighting.
(5) Each space excluding corridors, storage rooms, restrooms, and parking garages shall have a manual control device
that allows the occupant to reduce lighting power by a minimum of 50% and to turn the lighting off.
(6) A total lighting load not exceeding 0.2 W/m2 multiplied by the gross lighted area of the building shall be permitted
to operate at all times.
(7) Except as provided by Sentences (2) and (6), all lighting shall be automatically controlled to turn off when the
building is either unoccupied or scheduled to be unoccupied.
(8) The automatic control device required in Sentence (7) shall operate on,
(a) a scheduled basis using a time-of-day operated control device that turns lighting off at specific programmed times,
or
(b) a signal from another control or alarm system that indicates the area is unoccupied.
(9) Where the automatic control device conforms to Clause (8), an independent program schedule shall be provided for
each floor, and the program shall account for weekends and holiday.
(10) Automatic daylight sensing controls shall be used to control general lighting where the total lighting input power is
150 W or greater and where skylights or roof monitors are installed, in the following spaces:
(a) dining areas in fast food buildings,
(b) apparatus rooms in fire station buildings,
(c) retail spaces, and
(d) office spaces
(11) Except in retail spaces, automatic daylight sensing controls shall be used to control general lighting in a space where
the total lighting input power is 150 W or greater and the total area of exterior vertical fenestration in the space is 11 m 2
or greater.
(12) The automatic daylight sensing controls required in Sentences (10) and (11) shall reduce lighting in response to
available daylight using continuous dimming or with at least two intermediate control points between fully on and fully
off.
(13) Lighting in corridors, post office sorting areas, warehouse storage areas, and parking garages shall be controlled by
occupancy sensors that reduce the lighting power by a minimum of 50% when no activity is detected for not longer than
20 minutes.
(14) The control device required in Sentence (13) shall not control an area more than 330 m 2.
Page 64 • SB-10 Division 5
2024MMA Supplementary Standard SB-10
(15) Lighting in the following spaces shall be controlled by occupancy sensors that automatically turn off the lighting
when no activity is detected for not longer than 20 minutes:
(a) enclosed office areas less than 23 m2 (250 ft2),
(b) classrooms,
(c) training rooms,
(d) conference rooms,
(e) meeting rooms,
(f) breakrooms,
(g) non-warehouse storage areas,
(h) dressing / fitting rooms, and
(i) restrooms
(16) Control devices separate from those used for general lighting shall control the following:
(a) display lighting,
(b) accent lighting,
(c) case lighting,
(d) task lighting,
(e) non-visual lighting, and
(f) demonstration lighting.
1.1.1.10.Exterior Lighting
(1) Except as provided in Sentence (2), this Article applies to exterior areas conforming to Sentence 1.1.1.7.(1).
(2) If the lighting is equipped with a control device independent of the control of other lighting, Sentence (1) does not
apply to,
(a) specialized signal, directional, and marker lighting associated with transportation,
(b) advertising signage or directional signage,
(c) lighting integral to equipment or instrumentation and installed by its manufacturer,
(d) temporary lighting,
(e) lighting for industrial production, material handling, transportation sites, and associated storage areas, and
(f) lighting used to highlight features of public monuments and heritage buildings.
(3) The exterior lighting power allowance for the exterior areas appurtenant to a building shall be determined by
multiplying the lighting power density given in Table 1.1.1.10. by the areas or lengths of lighted exterior spaces.
(4) The total exterior lighting power allowance for the exterior areas appurtenant to a building is the sum of the
individual power allowances including the base allowance determined from Sentence (3).
(5) The installed exterior lighting power excluding façade lighting shall not exceed the exterior lighting power
allowance calculated in Sentence (4).
(6) The installed exterior lighting power of façade lighting shall not exceed 1.1 W/m 2 multiplied by the façade area.
(7) All exterior building grounds luminaires that operate at greater than 100 watts shall contain lamps having a
minimum efficacy of 60 lm/W unless the luminaire is controlled by a motion sensor.
Division 5 SB-10 • Page 65
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2024MMA Supplementary Standard SB-10
Table 1.1.1.10.
Exterior Lighting Power Densities
Forming Part of Sentence 1.1.1.10.(3)
Maximum Exterior Lighting
Exterior Area
Power Allowance
Base Allowance 400 W
Special Feature Areas, Walkways, Plazas 1.1 W/m2 (0.10 W/ft2)
Landscape 0.43 W/m2 (0.04 W/ft2)
46 W/linear m of door width
Pedestrian and Vehicular Entrances and Exits
(14 W/linear ft of door width)
Stairs and Ramps 7.5 W/m2 (0.70 W/ft2)
Parking Lots and Drives 0.43 W/m2 (0.04 W/ft2)
All Other Areas not Listed 2.2 W/m2 (0.20 W/ft2)
Column 1 2
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
1.1.1.11.Exterior Lighting Controls
(1) Except as provided in Sentence (2), control devices shall be installed that:
(a) automatically turn off the exterior lighting when sufficient daylight is available,
(b) automatically turn off building façade and landscape lighting during non-business hours, and
(c) automatically reduce the connected lighting power for exterior lighting excluding building façade and landscape
lighting, by at least 30% during non-business hours or alternatively, during any period when no activity is detected
for not longer than 15 minutes.
(2) Sentence (1) does not apply to,
(a) lighting for covered vehicle entrances or exits from a building, or
(b) parking structures where required for safety, security, or eye adaptation.
1.1.1.12.Electric Motors
(1) Electric motors shall conform to the efficiency levels required in Chapter 2 of Division 3.
Page 66 • SB-10 Division 5
2024MMA Supplementary Standard SB-10
Appendix A
Division 2
e1 Reserved.
Division 3
Chapter 1
e1 Reserved.
Chapter 2
A-1.1.1.8.(2) and A-1.1.1.10.(2) Metering and Energy Use Monitoring Devices.
The mandating of meters and/or monitoring devices in buildings is governed by the Green Energy Act. For the purposes of
complying with the Building Code, buildings are required to be designed in a manner that facilitates the future installation of
these devices, to measure energy consumption of building systems and the building as described in this Supplementary
Standard. Metering and monitoring devices must be installed in buildings where required by the Green Energy Act.
Chapter 3
A-1.1.1.10. and A-1.1.1.11. Metering and Energy Use Monitoring Devices.
The mandating of meters and/or monitoring devices in buildings is governed by the Green Energy Act. For the purposes of
complying with the Building Code, buildings are required to be designed in a manner that facilitates the future installation of
these devices, to measure energy consumption of building systems and the building as described in this Supplementary
Standard. Metering and monitoring devices must be installed in buildings where required by the Green Energy Act.
Division 5
e1 Reserved.
Division 5 SB-10 • Page 67
2024MMA Supplementary Standard SB-10
Page 68 • SB-10 Division 5
Ministry of Municipal Affairs and Housing
Building and Development Branch
MMAH Supplementary Standard SB-11
MMAH Supplementary Standard SB-11
Construction of Farm Buildings
January 1, 2024
2024MMAH Supplementary Standard SB-11
COMMENCEMENT
MMAH Supplementary Standard SB-11 comes into force on the 1st day of January 2025.
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