Proposed Changes to Ontario’s Building Code to Increase ...Proposed Changes to Ontario’s Building Code to Increase the Energy Efficiency of Buildings Consultation Document, February

Proposed Changes to Ontario’s Building Code to Increase the Energy Efficiency of Buildings

Guide to Submitting Comments

Consultation Document

February 2006

Ministry of Municipal Affairs and Housing

Proposed Changes to Ontario’s Building Code to Increase the Energy Efficiency of Buildings Consultation Document, February 2006

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Table of Contents Introduction................................................................................................................................. 2 Ontario’s Building Code........................................................................................................... 2

Structure of this Document..................................................................................................... 3

Instructions for Submitting a Comment .............................................................................. 3

Guidelines for Comments........................................................................................................ 4

What Happens to the Comments? ........................................................................................ 5 COMMENT FORM....................................................................................................................... 6


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INTRODUCTION The Government of Ontario is committed to moving forward on its commitment to achieve a reduction in peak electricity demand by 2007, and to create a culture of conservation. The Government of Ontario is also supportive of measures to reduce greenhouse gas emissions identified in the federal climate change action plan. To help achieve these goals, the Ministry of Municipal Affairs and Housing (MMAH) is considering changes that could be made to the Building Code to improve the energy efficiency of buildings, and thereby reduce electricity consumption and greenhouse gas emissions (GHG). Between February 24, 2006 and March 27, 2006, MMAH is inviting public comment on a package of proposed technical changes to the Building Code that would increase the energy efficiency of buildings. Your participation in this consultation is important in guiding the development of potential changes to Ontario's Building Code. The proposed technical changes presented in this document do not represent government policy and your views will be considered before the Government makes final decisions regarding amendments to the Building Code. Should the Government proceed with amendments to the Building Code to increase the energy efficiency of buildings, the introduction of these amendments will take into consideration the timing of the introduction of the next edition of the Building Code, anticipated for release in Spring 2006 and anticipated to be in effect by the end of the year. Thank you for providing your views and contributing to Ontario’s commitment to achieving greater energy efficiency. ONTARIO’S BUILDING CODE The Building Code Act, 1992 sets out the legislative framework governing the construction, renovation and change of use of buildings. The Building Code is a regulation made under the Act and sets out technical and administrative requirements. Enforcement of the administrative and technical requirements of the Building Code Act, 1992 and Building Code is the responsibility of principal authorities (municipalities, conservation authorities and health units). Ontario’s Building Code currently leads building regulation in Canada by addressing energy efficiency in buildings in numerous ways. Conservation and environmental integrity are explicitly identified in the Building Code Act, 1992 as purposes of the Building Code. In addition, the Building Code includes specific prescriptive requirements for energy efficiency in small-scale residential buildings (e.g., detached houses and row houses). The Code also provides designers choice in how to address energy efficiency in larger-


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scale residential buildings and non-residential buildings by referencing the Model National Energy Code for Buildings as well as ASHRAE/IES 90.1-1989 “Energy Efficient Design of New Buildings Except Low-rise Residential Buildings”. It also contains requirements for water conservation and other measures that support the principle of energy conservation. STRUCTURE OF THIS DOCUMENT This document sets out the proposed Building Code changes into four areas: Area 1 - Part 9 Houses (Four Options) Area 2 - All Buildings except Part 9 Residential Buildings (Three Options) Area 3 - Energy Efficiency Labelling for Houses Area 4 - Green Building Technologies The process for submitting comments on proposed changes, including a comment form, are also set out in this document. INSTRUCTIONS FOR SUBMITTING A COMMENT 1. After reviewing the proposed technical amendments and options, complete the

Comment Form found on page 6 of this document, which may also be downloaded from www.obc.mah.gov.on.ca. If you are commenting on more than one change, use a separate form for each proposed change. Each submitted Comment Form must be limited to comments on one proposed change or a related series of proposed changes.

2. For tracking purposes please remember to include the following on each Comment

Form: a. The proposed change number, which can be found in the upper left-hand

corner of the proposed change form (e.g., A1 – O2) b. Your name, c. Your mailing address, and d. Whether you are responding on behalf of yourself or an organization.

Personal information provided in responses to the Energy Efficiency Code Changes Consultation is collected under the authority of subsection 38(2) of the Freedom of Information and Protection of Privacy Act, R.S.O. 1990, F.31 for consultative purposes and contacting you should we need to clarify your response to this consultation. Responses to the consultation (minus business addresses, where provided) may be shared with provincial and national building and fire code development committees. Questions about the collection of personal information may be addressed to Carol Mercer, Senior Policy Advisor, Ministry of Municipal


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Affairs and Housing, Building and Development Branch, Code Development Legislation and Appeals, 777 Bay Street, 2nd Floor, Toronto, Ontario, (416) 585-7522 Fax: (416) 585-7531.

3. Completed Comment Forms may be submitted to MMAH by e-mail, fax, or mail.

Other supporting documents, such as reports, may also be submitted by e-mail, fax, or mail.

Email: [email protected] Fax: (416) 585-7531 Mail: 777 Bay Street, 2nd Floor, Toronto, Ontario, M5G 2E5

All comments must be received no later than March 27, 2006. Any questions on the consultation may be directed to:

Alek Antoniuk, Coordinator, Code Development Unit, Ministry of Municipal Affairs and Housing, Building and Development Branch, Code Development Legislation and Appeals, 777 Bay Street, 2nd Floor, Toronto, Ontario, (416) 585 -6456 Fax: (416) 585-7531.

Carol Mercer, Senior Policy Advisor, Ministry of Municipal Affairs and Housing, Building and Development Branch, Code Development Legislation and Appeals, 777 Bay Street, 2nd Floor, Toronto, Ontario, (416) 585-7522 Fax: (416) 585-7531.

GUIDELINES FOR COMMENTS 1. In order to maximize the effectiveness of your comments and to fully understand

your views, we ask that your comments directly relate to a specific proposed change listed in this consultation. A comment that refers to other requirements in the Code for which no change is proposed will not be considered as part of this consultation. However, should you wish to comment on other Code requirements, you may do so by completing the “Form for proposed change to the 1997 Ontario Building Code” available on the Building Code website at www.obc.mah.gov.on.ca.

2. You are encouraged to not only comment on each series of potential Code changes

within the four areas, but also to comment on the individual components that make up the proposal.

3. Negative comments should be accompanied by an explanation of the rationale for

your concerns to help MMAH and the Technical Code Committee understand your views.


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4. Comments must be technically supportable. Comments that are simple expressions

of opinion will generally carry less influence than those supported by technical or financial analysis.

5. Potential economic impacts and the expected energy savings were considered in the

development of the proposed changes. In reviewing the proposed changes, you are encouraged to consider the economic implications, the energy saving potential, as well as the ease of implementation. In doing so, please specify any assumptions that you have made in determining the economic implications, the energy saving potential, or the ease of implementation.

6. Only comments submitted in accordance with the section "Instructions for Submitting

a Comment" will be considered. WHAT HAPPENS TO THE COMMENTS? At the conclusion of the consultation, a Technical Code Committee will review all comments on the proposed amendments and make recommendations to the Government on the proposed amendments and options, including whether they should proceed as originally proposed, undergo editorial changes, more significant changes or be withdrawn.


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Potential Changes to Ontario’s Building Code to Increase the Energy Efficiency of Buildings

COMMENT FORM

CHANGE #

RESPONDENT INFORMATION (*indicates required)

*Name:

Title:

*I am responding on behalf of:

Myself An organization Please indicate organization:

*Function

Building Official Designer Building Owner/Manager Builder/Contractor Supplier/Manufacturer Homeowner/General Public Other, please specify:

*Street Address:

*City:

*Province:

Country:

COMMENTS

Mark one of the following with an X:

I support the proposed change I would support the proposed change with modifications (please indicate modifications below) I do not support the proposed change (please indicate reason below)


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Reason (Please attach additional sheets if necessary):

Your response is requested by March 27, 2006. All comments regarding the proposed technical changes will be reviewed by technical code committee(s). Responses may be: 1. Emailed to [email protected]; 2. Faxed to (416) 585-7531; or 3. Mailed to 777 Bay Street, 2nd Floor, Toronto, Ontario, M5G 2E5

Personal information provided in responses to the Energy Efficiency Code Changes Consultation is collected under the authority of subsection 38(2) of the Freedom of Information and Protection of Privacy Act, R.S.O. 1990, F.31 for consultative purposes and contacting you should we need to clarify your response to this consultation. Responses to the consultation (minus business addresses, where provided) may be shared with provincial and national building and fire code development committees. Questions about the collection of personal information may be addressed to Carol Mercer, Senior Policy Advisor, Ministry of Municipal Affairs and Housing, Building and Development Branch, Code Development Legislation and Appeals, 777 Bay Street, 2nd Floor, Toronto, Ontario, Tel: (416) 585-7522 Fax: (416) 585-7531.

Proposed Changes to Ontario’s Building Code to Increase the Energy Efficiency of Buildings

Proposed Technical Changes

Consultation Document

February 2006

Ministry of Municipal Affairs and Housing


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Table of Contents Area 1 – Part 9 Houses..................................................................................................2 Area 1 – Option 1 (Change # A1 – O1) ...........................................................................3 Area 1 – Option 2 (Change # A1 – O2) ...........................................................................6 Area 1 – Option 3 (Change # A1 – O3) ...........................................................................9 Area 1 – Option 4 (Change # A1 – O4) .........................................................................12

Area 2 – All Buildings except Part 9 Residential Buildings .....................................15 Area 2 – Option 1 (Change # A2 – O1) .........................................................................16 Area 2 – Option 2 (Change # A2 – O2) .........................................................................31 Area 2 – Option 3 (Change # A2 – O3) .........................................................................46

Area 3 – Energy Efficiency Labelling for Houses .....................................................48 Area 3 (Change # A3)....................................................................................................48

Area 4 – Green Building Technologies......................................................................52 Area 4 - (Change # A4 - 1) ............................................................................................52 Area 4 - (Change # A4 - 2) ............................................................................................53 Area 4 - (Change # A4 - 3) ...........................................................................................54 Area 4 - (Change # A4 - 4) ...........................................................................................55 Area 4 - (Change # A4 - 5) ...........................................................................................56 Area 4 - (Change # A4 - 6) ...........................................................................................58 Area 4 - (Change # A4 - 7) ...........................................................................................59 Area 4 - (Change # A4 - 8) ...........................................................................................60

Areas for Further Exploration ....................................................................................62

Motion Sensor Lighting...........................................................................................62 Green Roofs ...........................................................................................................62


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AREA 1 – PART 9 HOUSES The Building Code currently includes specific prescriptive requirements for energy efficiency in small-scale residential buildings, including detached, semi-detached, row houses and townhouses. Area 1 of this consultation document includes four options for potential amendments to the Building Code to increase the energy efficiency requirements of residential buildings governed by Part 9 of the Building Code. The four options for potential amendments are: Option 1 Nominal enhancements to the prescriptive requirements for insulation levels of ceilings and foundation walls, and glazing in windows and sliding doors. Section 9.38 would also include consequential amendments and editorial changes. Option 2 Moderate enhancements to the prescriptive requirements for insulation levels of ceilings, walls and foundation walls, and glazing in windows and sliding doors. Section 9.38 would also include consequential amendments and editorial changes. Option 3 Advanced enhancements to the prescriptive requirements for insulation levels of foundation walls, and glazing in windows and sliding doors. Section 9.38 would also include consequential amendments and editorial changes. Option 4 Aggressive enhancements to prescriptive requirements for insulation levels of foundation walls, and glazing in windows and sliding doors. Section 9.38 would also include consequential amendments and editorial changes. Each of the four options is set out in the pages that follow.


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AREA 1 – OPTION 1 (CHANGE # A1 – O1)

DESCRIPTION OF PROPOSED AMENDMENT

Nominal enhancements to the prescriptive requirements for insulation levels of ceilings and foundation walls, and glazing in windows and sliding doors. Section 9.38 would also include consequential amendments and editorial changes.

EXISTING BUILDING CODE PROVISION 9.25.2. Thermal Insulation 9.25.2.1. Required Insulation (4) Except as permitted in Sentences (5), (6), (7), (8), (13) and (14) the minimum thermal resistance of insulation shall conform to Table 9.25.2.1. (6) All sliding glass doors separating heated space from unheated space shall have a thermal resistance of not less than 0.30 m²�C/W (1.70 ft².h.�F/Btu).

Table 9.25.2.1. Minimum Thermal Resistance of Insulation to be Installed based on Degree Day

Zones(1) Forming Part of Sentence 9.25.2.1.(4)

RSI (R) Value Required

Building Element Exposed to the Exterior or to Unheated Space Zone 1

Less than 5000 Zone 2

5000 or more

Electric Space Heating

Zone 1 & 2 Ceiling below attic or roof space 5.40 (R31) 6.70 (R38) 7.00 (R40) Roof assembly without attic or roof space 3.52 (R20) 3.52 (R20) 3.87 (R22) Wall other than foundation wall 3.00 (R17) 3.87 (R22) 4.70 (R27) Foundation walls enclosing heated space 1.41 (R8) 2.11 (R12) 3.25 (R19) Floor, other than slab-on-ground 4.40 (R25) 4.40 (R25) 4.40 (R25) Slab-on ground containing pipes or heating ducts 1.76 (R10) 1.76 (R10) 1.76 (R10) Slab-on-ground not containing pipes or heating ducts 1.41 (R8) 1.41 (R8) 1.41 (R8)

Column 1 2 3 4 Notes to Table 9.25.2.1.: (1) Number of degree days for individual locations are contained in Table 2.5.1.1. (7) All glazing that separates heated space from unheated space shall have a thermal resistance of not less than 0.30 m²�C/W (1.70 ft².h.�F/Btu).


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(10) When electric space heating is used in a category TIL3 dwelling unit, all sliding glass doors separating heated space from unheated space or the outdoors shall have an energy rating of not less than -13 ER. (11) When electric space heating is used in a category TIL3 dwelling unit, all glazing that separates heated space from unheated space or the outdoors shall have an energy rating of not less than -13 ER for openable windows and 0 ER for fixed glazing. 9.25.2.4. Installation of Thermal Insulation (10) Insulation applied to the interior of foundation walls enclosing heated space shall extend from the underside of the subfloor to not less than 600 mm (23e in) below the adjacent exterior ground level.

PROPOSED BUILDING CODE AMENDMENT 9.25.2. Thermal Insulation 9.25.2.1. Required Insulation (4) Except as permitted in Sentences (5), (6), (7), (8), (13) and (14) the minimum thermal resistance of insulation shall conform to Table 9.25.2.1. (6) All glazing and sliding glass doors separating heated space from unheated space shall have a thermal resistance of not less than 0.30 0.51 m²�C/W (1.70 2.89ft².h.�F/Btu).






5000 or more


Zone 1 & 2 Ceiling below attic or roof space 7.00 (R40) 5.40 (R31) 7.00 (R40) 6.70 (R38) 8.75 (R50) 7.00 (R40)Roof assembly without attic or roof space 3.52 (R20) 3.52 (R20) 3.87 (R22) Wall other than foundation wall 3.00 (R17) 3.87 (R22) 4.70 (R27) Foundation walls enclosing heated space 2.11 (R12) 1.41 (R8) 2.11 (R12) 3.25 (R19) Floor, other than slab-on-ground 4.40 (R25) 4.40 (R25) 4.40 (R25) Slab-on ground containing pipes or heating ducts 1.76 (R10) 1.76 (R10) 1.76 (R10) Slab-on-ground not containing pipes or heating ducts 1.41 (R8) 1.41 (R8) 1.76 (R10) 1.41 (R8)

Column 1 2 3 4 Notes to Table 9.25.2.1. (1) Number of degree days for individual locations are contained in Table 2.5.1.1.


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(7) All glazing that separates heated space from unheated space shall have an energy rating of not less than -10 ER for openable windows and 0 ER for fixed glazing a thermal resistance of not less than 0.30 0.51 m²�C/W (1.70 2.89ft².h.�F/Btu). (10) When electric space heating is used in a category TIL3 dwelling unit, all sliding glass doors separating heated space from unheated space or the outdoors shall have an energy rating of not less than -10 ER. (11) When electric space heating is used in a category TIL3 dwelling unit, all glazing that separates heated space from unheated space or the outdoors shall have an energy rating of not less than -13 ER for openable windows and 0 ER for fixed glazing. 9.25.2.4. Installation of Thermal Insulation (10) Insulation applied to the interior of foundation walls enclosing heated space shall extend from the underside of the subfloor to not less than 600 mm (23e in) below the adjacent exterior ground level. (10A) Where the concrete slab-on-ground is fully covered with insulation, the RSI values required for the slab edges in Table 9.25.2.1. is permitted to be reduced by 50 percent.


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Moderate enhancements to the prescriptive requirements for insulation levels of ceilings, walls and foundation walls, and glazing in windows and sliding doors. Section 9.38 would also include consequential amendments and editorial changes.







5000 or more





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5000 or more


Zone 1 & 2 Ceiling below attic or roof space 7.00 (R40) 5.40 (R31) 7.00 (R40) 6.70 (R38) 8.80 (R50) 7.00 (R40)Roof assembly without attic or roof space 3.52 (R20) 3.52 (R20) 3.87 (R22) Wall other than foundation wall 3.43 (R19.5)3.00 (R17) 4.23 (R24) 3.87 (R22) 5.10 (R29) 4.70 (R27)Foundation walls enclosing heated space 2.11 (R12) 1.41 (R8) 2.11 (R12) 3.25 (R19) Floor, other than slab-on-ground 4.40 (R25) 4.40 (R25) 4.40 (R25) Slab-on ground containing pipes or heating ducts 1.76 (R10) 1.76 (R10) 1.76 (R10) Slab-on-ground not containing pipes or heating ducts 1.41 (R8) 1.41 (R8) 1.76 (R10) 1.41 (R8)

Column 1 2 3 4 Notes to Table 9.25.2.1.: (1) Number of degree days for individual locations are contained in Table 2.5.1.1.


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(7) All glazing that separates heated space from unheated space shall have an energy rating of not less than -10 ER for openable windows and 0 ER for fixed glazing a thermal resistance of not less than 0.30 0.51 m²�C/W (1.70 2.89ft².h.�F/Btu). (10) When electric space heating is used in a category TIL3 dwelling unit, all sliding glass doors separating heated space from unheated space or the outdoors shall have an energy rating of not less than -10 ER. (11) When electric space heating is used in a category TIL3 dwelling unit, all glazing that separates heated space from unheated space or the outdoors shall have an energy rating of not less than -13 ER for openable windows and 0 ER for fixed glazing. 9.25.2.4. Installation of Thermal Insulation (10) Insulation applied to the interior of foundation walls enclosing heated space shall extend from the underside of the subfloor to not less than 600 mm (23e in) below the adjacent exterior ground level. (10A) Where the concrete slab-on-ground is fully covered with insulation, the RSI values required for the slab edges in Table 9.25.2.1. is permitted to be reduced by 50 percent.


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Advanced enhancements to the prescriptive requirements for insulation levels of foundation walls, and glazing in windows and sliding doors. Section 9.38 would also include consequential amendments and editorial changes.







5000 or more





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5000 or more


Zone 1 & 2 Ceiling below attic or roof space 7.00 (R40) 5.40 (R31) 7.00 (R40) 6.70 (R38) 8.80 (R50) 7.00 (R40)Roof assembly without attic or roof space 3.52 (R20) 3.52 (R20) 3.87 (R22) Wall other than foundation wall 3.00 (R17) 3.87 (R22) 5.10 (R29) 4.70 (R27)Foundation walls enclosing heated space (Full Height) 2.11 (R12) 1.41 (R8) 2.11 (R12) 3.25 (R19) Floor, other than slab-on-ground 4.40 (R25) 4.40 (R25) 4.40 (R25) Slab-on ground containing pipes or heating ducts 1.76 (R10) 1.76 (R10) 1.76 (R10) Slab-on-ground not containing pipes or heating ducts 1.41 (R8) 1.41 (R8) 1.76 (R10) 1.41 (R8)



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(7) All glazing that separates heated space from unheated space shall have an energy rating of not less than -10 ER for openable windows and 0 ER for fixed glazing a thermal resistance of not less than 0.30 0.51 m²�C/W (1.70 2.89ft².h.�F/Btu). (10) When electric space heating is used in a category TIL3 dwelling unit, all sliding glass doors separating heated space from unheated space or the outdoors shall have an energy rating of not less than -10 ER. (11) When electric space heating is used in a category TIL3 dwelling unit, all glazing that separates heated space from unheated space or the outdoors shall have an energy rating of not less than -13 ER for openable windows and 0 ER for fixed glazing. 9.25.2.4. Installation of Thermal Insulation (10) Insulation applied to the interior of foundation walls enclosing heated space shall extend from the underside of the subfloor to not less than 600 mm (23e in) below the adjacent exterior ground level. (10) The insulation required in Sentence (1) shall extend from the underside of the subfloor and may terminate within not more than 380 mm (15 in) above the finished floor level of the basement. (10A) Where the concrete slab-on-ground is fully covered with insulation, the RSI values required for the slab edges in Table 9.25.2.1. is permitted to be reduced by 50 percent.


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Aggressive enhancements to the prescriptive requirements for insulation levels of foundation walls, and glazing in windows and sliding doors. Section 9.38 would also include consequential amendments and editorial changes.







5000 or more





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5000 or more


Zone 1 & 2 Ceiling below attic or roof space 7.00 (R40) 5.40 (R31) 7.00 (R40) 6.70 (R38) 8.80 (R50) 7.00 (R40)Roof assembly without attic or roof space 3.52 (R20) 3.52 (R20) 3.87 (R22) Wall other than foundation wall 3.43 (R19.5)3.00 (R17) 4.23 (R24) 3.87 (R22) 5.10 (R29) 4.70 (R27)Foundation walls enclosing heated space (Full Height) 2.11 (R12) 1.41 (R8) 2.11 (R12) 3.25 (R19) Floor, other than slab-on-ground 4.40 (R25) 4.40 (R25) 4.40 (R25) Slab-on ground containing pipes or heating ducts 1.76 (R10) 1.76 (R10) 1.76 (R10) Slab-on-ground not containing pipes or heating ducts 1.41 (R8) 1.41 (R8) 1.76 (R10) 1.41 (R8)



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(7) All glazing that separates heated space from unheated space shall have an energy rating of not less than -10 ER for openable windows and 0 ER for fixed glazing a thermal resistance of not less than 0.30 0.51 m²�C/W (1.70 2.89ft².h.�F/Btu). (10) When electric space heating is used in a category TIL3 dwelling unit, all sliding glass doors separating heated space from unheated space or the outdoors shall have an energy rating of not less than -10 ER. (11) When electric space heating is used in a category TIL3 dwelling unit, all glazing that separates heated space from unheated space or the outdoors shall have an energy rating of not less than -13 ER for openable windows and 0 ER for fixed glazing. 9.25.2.4. Installation of Thermal Insulation (10) Insulation applied to the interior of foundation walls enclosing heated space shall extend from the underside of the subfloor to not less than 600 mm (23e in) below the adjacent exterior ground level. (10) The insulation required in Sentence (1) shall extend from the underside of the subfloor and may terminate within not more than 380 mm (15 in) above the finished floor level of the basement. (10A) Where the concrete slab-on-ground is fully covered with insulation, the RSI values required for the slab edges in Table 9.25.2.1. is permitted to be reduced by 50 percent. 9.25.4.4. Equipment Efficiency (1) Natural or propane gas-fired furnaces shall have greater of minimum Annual Fuel

Utilization Efficiency (AFUE) required by the Energy Efficiency Act, or AFUE of 90%.

(2) Oil-fired furnaces shall have greater of minimum Annual Fuel Utilization

Efficiency (AFUE) required by the Energy Efficiency Act, or AFUE of 85 %.


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AREA 2 – ALL BUILDINGS EXCEPT PART 9 RESIDENTIAL BUILDINGS The Building Code currently provides designers choice in how to address energy efficiency in non-residential buildings and larger-scale residential buildings by referencing the Model National Energy Code for Buildings as well as ASHRAE/IES 90.1-1989 “Energy Efficient Design of New Buildings Except Low-rise Residential Buildings”. Supplementary Guideline (SG-1) of the Building Code also sets out guidelines for the interpretation of ASHRAE/IES 90.1-1989 in order to clarify and modify certain requirements of the standard to address Canadian climatic conditions and construction practices. Area 2 of this consultation document includes three options for potential amendments to the Building Code and Supplementary Guideline to increase the energy efficiency requirements of non-residential buildings and large-scale residential buildings. The three options for potential amendments are: Option 1 The current references to the Model National Energy Code for Buildings as well as ASHRAE/IES 90.1-1989 “Energy Efficient Design of New Buildings Except Low-rise Residential Buildings” would be maintained, except that the minimum energy efficiency requirements for equipment and internal lighting allowances would be enhanced through amendments to the Supplementary Guidelines to achieve higher energy efficiency levels. These new levels would result in equipment and lighting requirements that are similar to levels stated in ANSI/ASHRAE/IESNA 90.1-2004. SG-1 will also include consequential and editorial changes. In addition, SG-1 will include a simplified prescriptive approach for non-residential buildings within the scope of Part 9 of the Building Code. Option 2 Adopt ANSI/ASHRAE/IESNA Standard 90.1-2004 except for its envelope section. Envelope requirements of ANSI/ASHRAE/IESNA 90.1-2004 would be replaced with the current envelope requirements set out in Supplementary Guideline (SG-1). Maintain current reference to the Model National Energy Code for Buildings, 1997 (MNECB) with some modifications to its envelope, electrical and mechanical sections. Envelope requirements of the MNECB would be replaced with the current envelope requirements set out in Supplementary Guideline (SG-1). The Supplementary Guidelines would state increased energy efficiency levels for electrical and mechanical systems designed under the MNECB. The Supplementary Guidelines would also be modified to state new minimum energy efficiency requirements for equipment and new lighting power allowances.


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These new requirements would result in lighting and equipment energy efficiency levels for the MNECB that are similar to the energy efficiency levels of ANSI/ASHRAE/IESNA 90.1-2004. SG-1 will also include consequential and editorial changes. In addition, SG-1 will include a simplified prescriptive approach for non-residential buildings within the scope of Part 9 of the Building Code. Option 3 Adopt and amend ANSI/ASHRAE/IESNA Standard 90.1-2004 and the Model National Energy Code for Buildings, 1997 (MNECB) as described in Option 2 and also increase the envelope requirements for electrically heated buildings by amending the Supplementary Guidelines. SG-1 will also include consequential and editorial changes. In addition, SG-1 will include a simplified prescriptive approach for non-residential buildings within the scope of Part 9 of the Building Code. Each of the three options is set out in the pages that follow.



The current references to the Model National Energy Code for Buildings as well as ASHRAE/IES 90.1-1989 “Energy Efficient Design of New Buildings Except Low-rise Residential Buildings” would be maintained, except that the minimum energy efficiency requirements for equipment and internal lighting allowances would be enhanced through amendments to the Supplementary Guidelines to achieve higher energy efficiency levels. These new levels would result in equipment and lighting power requirements that are similar to levels stated in ANSI/ASHRAE/IESNA 90.1-2004. SG-1 will also include consequential and editorial changes. In addition, SG-1 will include a simplified prescriptive approach for non-residential buildings within the scope of Part 9 of the Building Code.


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EXISTING BUILDING CODE PROVISION 2.1.1.11. Energy Efficiency (1) Except for buildings of residential occupancy within the scope of Part 9, farm buildings and areas of buildings intended primarily for manufacturing or commercial or industrial processing, the energy efficiency of all buildings shall be designed to good engineering practice such as described in

(a) the ASHRAE/IES 90.1-1989, “Energy Efficient Design of New Buildings Except Low-Rise Residential Buildings” and the Supplementary Guidelines to the 1997 OBC, or

(b) the Model National Energy Code for Buildings, 1997.

PROPOSED BUILDING CODE AMENDMENT 2.1.1.11. Energy Efficiency (1) Except for buildings of residential occupancy within the scope of Part 9, farm buildings and areas of buildings intended primarily for manufacturing or commercial or industrial processing, the energy efficiency of all buildings shall be designed to good engineering practice such as described in


(b) the Model National Energy Code for Buildings, 1997 and the Supplementary Guidelines to the 1997 OBC.

Supplementary Guideline (SG-1) SG-1 as revised below will continue to be applicable to ASHRAE/IES 90.1-1989. SG-1 as revised below will also be applicable to MNECB, except Section 8 “Building Envelope”. The following tables will be replaced or added to SG-1: Replace Table 5-1 (minimum motor efficiency levels) in SG-1 with the following:


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Minimum Nominal Efficiency for Motors

Open Motors Enclosed Motors Speed (RPM) Speed (RPM)

3600 1800 1200 900 3600 1800 1200 900 Number of Poles Number of Poles

Motor HP

2 4 6 8 2 4 6 8 1 75.5 82.5 80.0 84.0 75.5 82.5 80.0 74.0

1.5 82.5 84.0 84.0 75.5 82.5 84.0 85.5 77.0 2 84.0 84.0 85.5 85.5 84.0 84.0 86.5 82.5 3 84.0 86.5 86.5 86.5 85.5 87.5 87.5 84.0 5 85.5 87.5 87.5 87.5 87.5 87.5 87.5 85.5

7.5 87.5 88.5 88.5 88.5 88.5 89.5 89.5 85.5 10 88.5 89.5 90.2 89.5 89.5 89.5 89.5 88.5 15 89.5 91.0 90.2 89.5 90.2 91.0 90.2 88.5 20 90.2 91.0 91.0 90.2 90.2 91.0 90.2 89.5 25 91.0 91.7 91.7 90.2 91.0 92.4 91.7 89.5 30 91.0 92.4 92.4 91.0 91.0 92.4 91.7 91.0 40 91.7 93.0 93.0 91.7 91.7 93.0 93.0 91.0 50 92.4 93.0 93.0 91.7 92.4 93.0 93.0 91.7 60 93.0 93.6 93.6 92.4 93.0 93.6 93.6 91.7 75 93.0 94.1 93.6 93.6 93.0 94.1 93.6 93.0

100 93.0 94.1 94.1 93.6 93.6 94.5 94.1 93.0 125 93.6 94.5 94.1 93.6 94.5 94.5 94.1 93.6 150 93.6 95.0 94.5 93.6 94.5 95.0 95.0 93.6 175 94.5 95.0 94.5 93.6 95.0 95.0 95.0 94.1 200 94.5 95.0 94.5 93.6 95.0 95.0 95.0 94.1

Replace Table 6-4 (Fluorescent Ballast Efficacy Factors) in SG-1 with the following table:

Fluorescent Lamp Ballast Efficacy Factors

Application for Operation of:

Ballast Input Voltage

Total Nominal Lamp Watts

EE Act Ballast Efficacy Factor

One F40T12 Lamp 120V 277V 347V

40 40 40

2.29 2.29 2.22

Two F40T12 Lamps 120V 277V 347V

80 80 80

1.17 1.17 1.12


150 150 150

0.63 0.63 0.62

Two 110W/F96T12HO Lamps

120V 277V 347V

220 220 220

0.390 0.390 0.380


64 64 64

1.250 1.230 1.200


19

The following Tables would be used in lieu of Table 6-5 of ASHRAE 90.1-1989, and Table 4.3.2.1. of the MNECB-1997.

Lighting Power Densities Using the Building Area Method

Lighting Power Density Building Area Typea (W/ft2)

Automotive Facility 0.9 Convention Center 1.2 Court House 1.2 Dining: Bar Lounge/Leisure 1.3 Dining: Cafeteria/Fast Food 1.4 Dining: Family 1.6 Dormitory 1.0 Exercise Center 1.0 Gymnasium 1.1 Health Care-Clinic 1.0 Hospital 1.2 Hotel 1.0 Library 1.3 Manufacturing Facility 1.3 Motel 1.0 Motion Picture Theater 1.2 Multi-Family 0.7 Museum 1.1 Office 1.0 Parking Garage 0.3 Penitentiary 1.0 Performing Arts Theater 1.6 Police/Fire Station 1.0 Post Office 1.1 Religious Building 1.3 Retail 1.5 School/University 1.2 Sports Arena 1.1 Town Hall 1.1 Transportation 1.0 Warehouse 0.8 Workshop 1.4

a In cases where both general building area type and a specific building area type are listed, the specific building area type shall apply.


20

The following Tables would be used in lieu of Table 6-6a to 6-6c of ASHRAE 90.1-1989, and Table 4.3.3.4. of the MNECB-1997.

Lighting Power Densities Using the Space-by-Space Method

Common Space Typesa LPD (W/ft2) Building Specific Space Types LPD (W/ft2) Office-Enclosed 1.1 Gymnasium/Exercise Center Office-Open Plan 1.1 Playing Area 1.4 Conference/Meeting/Multipurpose 1.3 Exercise Area 0.9 Classroom/Lecture/Training 1.4 Courthouse/Police Station/Penitentiary For Penitentiary 1.3 Courtroom 1.9 Lobby 1.3 Confinement Cells 0.9 For Hotel 1.1 Judges Chambers 1.3 For Performing Arts Theater 3.3 Fire Stations For Motion Picture Theater 1.1 Fire Station Engine Room 0.8 Audience/Seating Area 0.9 Sleeping Quarters 0.3 For Gymnasium 0.4 Post Office─Sorting Area 1.2 For Exercise Center 0.3 Convention Center─Exhibit Space 1.3 For Convention Center 0.7 Library For Penitentiary 0.7 Card File and Cataloging 1.1 For Religious Buildings 1.7 Stacks 1.7 For Sports Arena 0.4 Reading Area 1.2 For Performing Arts Theater 2.6 Hospital For Motion Picture Theater 1.2 Emergency 2.7 For Transportation 0.5 Recovery 0.8 Atrium─First Three Floors 0.6 Nurse Station 1.0 Atrium─Each Additional Floor 0.2 Exam/Treatment 1.5 Lounge/Recreation 1.2 Pharmacy 1.2 For Hospital 0.8 Patient Room 0.7 Dining Area 0.9 Operating Room 2.2 For Penitentiary 1.3 Nursery 0.6 For Hotel 1.3 Medical Supply 1.4 For Motel 1.2 Physical Therapy 0.9 For Bar Lounge/Leisure Dining 1.4 Radiology 0.4 For Family Dining 2.1 Laundry─Washing 0.6 Food Preparation 1.2 Automotive─Service/Repair 0.7 Laboratory 1.4 Manufacturing Restrooms 0.9 Low Bay (<25 ft Floor to Ceiling Height) 1.2 Dressing/Locker/Fitting Room 0.6 High Bay (≥25 ft Floor to Ceiling Height) 1.7 Corridor/Transition 0.5 Detailed Manufacturing 2.1 For Hospital 1.0 Equipment Room 1.2 For Manufacturing Facility 0.5 Control Room 0.5 Stairs─Active 0.6 Hotel/Motel Guest Rooms 1.1 Active Storage 0.8 Dormitory─Living Quarters 1.1 For Hospital 0.9 Museum Inactive Storage 0.3 General Exhibition 1.0 For Museum 0.8 Restoration 1.7 Electrical/Mechanical 1.5 Bank/Office─Banking Activity Area 1.5 Workshop 1.9 Religious Buildings Worship Pulpit, Choir 2.4 Fellowship Hall 0.9 a In cases where both a common space type and a building specific type are listed, the building specific space

type shall apply.


21

Lighting Power Densities Using the Space-by-Space Method (Cont’d) Common Space Typesa LPD (W/ft2) Building Specific Space Types LPD (W/ft2)

Retail [For accent lighting, see 9.3.1.2.1©]

Sales Area 1.7 Mall Concourse 1.7 Sports Arena Ring Sports Area 2.7 Court Sports Area 2.3 Indoor Playing Field Area 1.4 Warehouse Fine Material Storage 1.4 Medium/Bulky Material Storage 0.9 Parking Garage─Garage Area 0.2 Transportation Airport─Concourse 0.6 Air/Train/Bus─Baggage Area 1.0 Terminal─Ticket Counter 1.5 a In cases where both a common space type and a building specific type are listed, the building specific space

type shall apply.


22

HEATING VENTILATING AND AIR CONDITIONING (HVAC) The following Tables would be used in lieu of Tables 10-1 to 10-10 of ASHRAE 90.1-1989, and Table 5.2.13.1. of the MNECB-1997. The greater of the energy efficiency requirements set out in the tables below or the Energy Efficiency Act would apply. Unitary Air Conditioners and Condensing Units, Electrically Operated, Minimum Efficiency Requirements

Equipment Type Size Category (Btu/hr)

Sub-Category or Rating Condition

Energy Efficiency Act

Minimum Efficiency*

ASHRAE 90.1-2004* Minimum Efficiency

Test Procedure Canada (U.S.)

< 65,000** Split System 10.0 SEER CSA C273.3

(ARI 210/240) < 65,000** Single Package 9.7 SEER

CSA C656 (ARI 210/240)

$65,000 and < 135,000

Split System and Single Package

8.9 EER 8.3 IPLV CSA C746

(ARI 210/240) $135,000 and

< 240,000 Split System and Single Package


(ARI 340/360) $ 240,000 and


9.5 EER 9.7 IPLV

(ARI 340/360)

Air Conditioners, Air Cooled

$760,000 Split System and Single Package

9.2 EER 9.4 IPLV

(ARI 340/360)

Split System

10.0 SEER (before 1/23/2006)

10.9 SEER (as of 1/23/2006)

12 SEER (as of 1/23/2010)

Through-the-Wall, Air Cooled

≤30,000

Single Package 9.7 SEER (before 1/23/2006)

10.6 SEER (as of 1/23/2006)

12.0 SEER (as of 1/23/2010)

(ARI 210/240)

Small-Duct High-Velocity, Air Cooled

<65,000 Split System 10 SEER (ARI 210/240)


12.1 EER (ARI 210/240)

$ 65,000 and < 135,000



(ARI 210/240) $135,000 and



(ARI 340/360)

Air Conditioners, Water and

Evaporatively Cooled


11.0 EER 10.3 IPLV

(ARI 340/360)

Condensing Units, Air Cooled

$135,000 9.9 EER 11.0 IPLV

CSA C746 (ARI 365)

Condensing Units, Water or


$135,000 12.9 EER 12.9 IPLV

CSA C746 (ARI 365)

*IPLV’s are only applicable to equipment with capacity modulation. For units with other than electric resistance heat deduct 0.2 EER and 0.2 IPLV **Single-phase air-cooled air conditioners are covered by DOE in the U.S.


23

Unitary and Applied Heat Pumps, Electrically Operated, Minimum Efficiency Requirements




Minimum Efficiency

ASHRAE 90.1-2004 Minimum Efficiency *


< 65,000** Split System 10.0 SEER 13 SEER (as of 1/26/06)

CSA-C273.3 (ARI 210/240)

< 65,000** Single Package 9.7 SEER 13 SEER (as of 1/26/06)

CSA-C656 (ARI 210/240)

$ 65,000 and < 135,000


10.1 EER 10.4 IPLV

CSA-C746 (ARI 210/240)

$135,000 and $240,000


9.3(split)/8.5(single) EER9.5 IPLV

CSA-C746 (ARI 340/360)

Air Cooled, (Cooling Mode)

> 240,000 Split System and Single Package

9.0 EER 9.2 IPLV

(ARI 340/360)

Split System

10.0 SEER (before 1/23/2006)

10.9 SEER (as of 1/23/2006)

12 SEER (as of 1/23/2010)

Through-the-Wall (Air Cooled, Cooling Mode)

≤30,000


10.6 SEER (as of 1/23/2006)

12.0 SEER (as of 1/23/2010)

(ARI 210/240)

Small-Duct High-Velocity (Air Cooled, Cooling Mode)

< 65,000 Split System 10 SEER (ARI 210/240)

< 17,000 86°F Entering Water 11.2 EER (ISO-13256-1)

≥ 17,000 and < 65,000

86°F Entering Water 3.52 COPc CSA-C13256-1 (ISO-13256-1)

Water-Source (Cooling Mode)

$ 65,000 < 135,000 Btu/h


Groundwater Source (Cooling Mode)

< 135,000 59°F Entering Water 4.75 COPc CSA-C13256-1 (ISO-13256-1)

Ground Source (Cooling Mode)


< 65,000** (Cooling Capacity)

Split System 5.9 HSPF V 6.7 HSPF V(as of 1/26/06)

CSA-C273.3 (ARI 210/240)


Single Package 5.7 HSPF V 6.7 HSPF V(as of 1/26/06)

CSA-C656 (ARI 210/240)

47°F db/43° wb (Outdoor Air)

3.2 COP $ 65,000 and < 135,000

(Cooling Capacity) 17°F db/15° wb (Outdoor Air)

2.2 COP

CSA-C746 (ARI 210/240)


3.1 COP

Air Cooled, (Heating Mode)

$ 135,000 (Cooling Capacity)


2.0 COP

CSA-C746 (ARI 340/360)

*IPLVs are only applicable to equipment with capacity modulation **Single-phase heat pumps are covered by DOE in U.S. ***Single-phase, air-cooled heat pumps <65,000 Btu/h are regulated by NAECA, SEER and HSPF values are those set by NAECA


24

Unitary and Applied Heat Pumps, Electrically Operated, Minimum Efficiency Requirements (Cont’d)




Minimum Efficiency



Split System

(before 1/23/2006) 7.1 HSPF

(as of 1/23/2006) 7.4 HSPF

(as of 1/23/2010)

Through-the-Wall (Air Cooled, Heating

Mode)

≤30,000 (Cooling Capacity)

Single Package

(before 1/23/2006) 7.0 HSPF

(as of 1/23/2006) 7.4 HSPF

(as of 1/23/2010)

(ARI 210/240)

Small-Duct High-Velocity

(Air Cooled, Heating Mode)

< 65,000 (Cooling Capacity)

Split System 6.8 HSPF (ARI 210/240)

Water-Source (Heating Mode)


68°F Entering Water 4.2 COP CSA-C13256-1(ISO-13256-1)

Groundwater Source (Heating Mode)



Ground Source (Heating Mode)





25

Water Chilling Packages, Minimum Efficiency Requirements

Equipment Type Size Category Energy

Efficiency Act Minimum Efficiency


< 150 tons 2.80 COP 3.05 IPLV

CSA C743 (ARI 550, ARI 590)

Air Cooled, With Condenser,

Electrically Operated $ 150 tons 2.80 COP

3.05 IPLV CSA C743

(ARI 550, ARI 590)

Air Cooled, Without Condenser, Electrically Operated

All Capacities 3.1 3.45 IPLV

CSA C743 (ARI 550, ARI 590)

Water Cooled, Electrically Operated, Positive Displacement

(Reciprocating)

All Capacities 4.2 COP 5.05 IPLV

CSA C743 (ARI 590)

< 150 tons 4.45 COP 5.20 IPLV

CSA C743 (ARI 550)

$ 150 tons and # 300 tons

4.90 COP 5.60 IPLV

CSA C743 (ARI 550)


(Rotary Screw and Scroll)

$ 300 tons 5.50 COP 6.15 IPLV

CSA C743 (ARI 550)

< 150 tons 5.00 COP 5.25 IPLV

CSA C743 (ARI 550)

$ 150 tons and < 300 tons

5.55 COP 5.90 IPLV

CSA C743 (ARI 550)

Water Cooled, Electrically Operated,

(Centrifugal)

$ 300 tons

6.40 IPLV

CSA C743 (ARI 550)

Single Effect Absorption Air Cooled

All Capacities 0.60 COP CSA C743 (ARI 560)

Single Effect Absorption Water Cooled


Double Effect Absorption Indirect-Fired

All Capacities

1.05 IPLV

CSA C743 (ARI 560)

Double Effect Absorption Direct-Fired

All Capacities

1.00 IPLV

CSA C743 (ARI 560)


26

Packaged Terminal Air Conditioners, Packaged Terminal Heat Pumps, Single-Package Vertical Air Conditioners, Single-Package Vertical Heat Pumps, Room Air Conditioners and Room Air Conditioner

Heat Pumps, Electrically Operated, Minimum Efficiency Requirements

Equipment Type Size Category Sub-Category or Rating Condition

Energy Efficiency Act Minimum Efficiency

ASHRAE 90.1-2004 Minimum Efficiency


All Capacities 95° F db Outdoor Air 12.5 – (0.213 x Capc/1000) EER

CSA C744 (ARI 310/380)

PTAC (Cooling Mode)

New Construction

PTAC (Cooling Mode) Replacements b

All Capacities 95° F db Outdoor Air 10.9 – (0213 x Capc/1000) EER

CSA C744 (ARI 310/380)


CSA C744 (ARI 310/380)

PTHP (Cooling Mode)

New Construction

PTHP (Cooling Mode) Replacements b


CSA C744 (ARI 310/380)

PTHP (Heating Mode) New Construction

All Capacities 3.2 – (0.026 x Capc/1000) COP

CSA C744 (ARI 310/380)

PTHP (Heating Mode) Replacements b


CSA C744 (ARI 310/380)

SPVAC (Cooling Mode) All Capacities 95° F db/ 75° F wb Outdoor Air

8.6 EER (ARI 390)

SPVHP (Cooling Mode) All Capacities 95° F db/ 75° F wb Outdoor Air

8.6 EER (ARI 390)

SPVHP (Heating Mode) All Capacities 47° F db/ 43° F wb Outdoor Air

2.7 COP (ARI 390)

< 6,000 Btu/h 9.7 EER $ 6,000 Btu/h and

< 8,000 Btu/h 9.7 EER

Room Air Conditioners, With Louvered Sides

$ 8,000 Btu/h and < 14,000 Btu/h

9.8 EER

CSA –C368.1 C368.1 only applies to equip. <36,000

Btu/hr (ANSI/AHAM RAC-1)

≥ 14,000 Btu/h & < 20,000 Btu/h

9.7 EER Room Air Conditioners, With Louvered Sides

$ 20,000 Btu/h 8.5 EER



< 8,000 Btu/h 9.0 EER $ 8,000 Btu/h & < 20,000 Btu/h

8.5 EER Room Air Conditioners, Without Louvered Sides

$20,000 Btu/h 8.5 EER

CSA –C368.1 (ANSI/AHAM RAC-1)

< 20,000 Btu/h 9.0 EER Room Air Conditioner Heat Pumps With Louvered Sides

$20,000 Btu/h 8.5 EER

CSA-C368.1 (ANSI/AHAM RAC-1)

<14,000 Btu/h 8.5 EER Room Air Conditioner Heat Pumps Without Louvered

Sides $14,000 Btu/h 8.0 EER


Room Air Conditioner, Casement Only

All Capacities 8.7 EER (ANSI/AHAM RAC-1)

Room Air Conditioner, Casement-Slider


a Capc is the rated cooling capacity in Btu/h. If unit capacity is less that 7,000 Btu/h, use 7,000 Btu/h in calculation. If greater than 15,000 Btu/h, use 15,000 Btu/h in calculation. b Replacements must be factoring labelled as follows: Manufactured for replacement applications only; net to be installed in new construction. Replacement efficiencies apply only to units with existing wall sleeves/less than 16 in high and less than 42 in wide.


27

Warm Air Furnaces and Combination Warm Air Furnaces/Air-Conditioning Units, Warm Air Duct Furnaces and Units Heaters Minimum Efficiency Requirements

Equipment Type Size Category (input)



Minimum Efficiency


< 225,000 Btu/h (65.95 kW)

78 % AFUE CGA-P.2 (DOE 10 CFR

Part 430 or ANSI Z21.47)

≥ 225,000 Btu/h & <400,000 BTU/h (≥ 65.95 kW and

< 117 kW)

Maximum Capacity*** 75% Ec CAN/CGA-2.3 (ANSI Z21.47)

Warm Air Furnace, Gas-Fired

≥ 400,000 Btu/h (≥ 117 kW)

Maximum Capacity*** 80% Et CGA-P.8 (ANSI Z21.47)

< 225,000 Btu/h (65.95 kW)

78 % AFUE CAN/CSA B212 (DOE 10 CFR

Part 430 or UL 727)

Warm Air Furnace, Oil-Fired

≥ 225,000 Btu/h Maximum Capacity*** 80% Ec CSA B140.4 (UL 727)

Warm Air Duct Furnaces, Gas-Fired

All Capacities Maximum Capacity*** 80% Et CAN/CGA-2.8 (ANSI Z83.9)

Warm Air Unit Heaters, Gas-Fired

All Capacities Maximum Capacity*** 80% Ec CAN/CGA-2.6 (ANSI Z83.8)

Unit Heaters, Oil-Fired

All Capacities Maximum Capacity*** 80% Ec CSA B140.4 (UL 731)

Et is thermal efficiency and Ec is combustion efficiency. Ec = 100% less flue losses *Year-round heating/cooling units not covered by DOE may comply with either rating. **Units must also include an intermittent ignition device (IID), have jacked losses .75% of input rating and either power venting or flue damper ***Maximum rating as provided for and allowed by unit controls.


28

Gas-Fired and Oil-Fired Boilers, Minimum Efficiency Requirements




Minimum Efficiency



< 300,000 Btu/h Hot Water Steam

80% AFUE 75% AFUE

CGA P.2 (DOE 10

CFR Part 430)

$ 300,000 Btu/h & # 2,500,000

Maximum Capacity 75% Et CGA 3.3 (Hydronics Institute)

Boilers, Gas-Fired

>2,500,000 Btu/h Hot Water Steam

80% Ec 80% Ec

CGA 3.3 (Hydronics Institute)

< 300,000 Btu/h 80% SEUE CSA B212-00

(DOE 10 CFR Part 430)

$ 300,000 Btu/h & # 2,500,000

Maximum Capacity 78% Et CSA B140.7.2 (Hydronics Institute)

Boilers, Oil-Fired


83% Ec 83% Ec

CSA B140.7.2 (Hydronics Institute)

$ 300,000 Btu/h & # 2,500,000


Boilers, Oil-Fired (Residual)


83% Ec 83% Ec

CSA B140.7.2-1967

(Hydronics Institute )

Et is thermal efficiency and Ec is combustion efficiency. Ec = 100% less flue losses. Maximum capacity as provided for and allowed by the unit’s controls.

Cooling Tower Performance Requirements


Energy Efficiency Act Performance

Required

ASHRAE 90.1-2004Performance

Required


Propeller or Axial Fans All Capacities 95/85 °F Entering/Leaving75 °F wb Outdoor Air

≥ 38.2 GPM/HP (CTI ATC-105)

Centrifugal Fans All Capacities 95/85 °F Entering/Leaving75 °F wb Outdoor Air


Air- cooled Condensers

All Capacities 125 °F Condensing TempR-22 Test Fluid

190 °F Entering Gas Temp95 °F Entering db 15 °F Subcooling

≥176,000 Btu/h/HP (ARI 460)

For purpose of this table, cooling tower performance is maximum flow rating divided by fan nameplate rated motor power. Air-cooled condenser performance is defined as heat rejected from the refrigerant divided by the fan nameplate rated motor power.


29

SERVICE WATER HEATING The following Table would be used in lieu of Table 11-1 of ASHRAE 90.1-1989, and Table 6.2.2.1. of the MNECB-1997. The greater of the energy efficiency requirements set out in the tables below or the Energy Efficiency Act would apply.

Water Heating Equipment, Performance Requirements



Minimum Efficiency



≤ 12 kW Resistance ≥ 20 gal

0.93-0.000349V EF CAN/CSA-C745 (DOE 10 CFR Part 430)

> 12 kW Resistance ≥ 20 gal

20 35 TV SL+

(ANS Z21.10.3)

Electric Storage Water Heaters

≤ 24 Amps and ≤ 250 volts

Heat Pump 0.93-0.00132 V EF CAN/CSA-C745 (DOE 10 CFR Part 430)

≤ 75,000 Btu/h ≥ 20 gal (< 100 gal tank for CGA)

0.67-0.0005V EF CGA P.3-95 (DOE 10 CFR Part 430)

Gas Storage Water Heaters

> 75,000 Btu/h < 4,000 Btu/h/gal 80% Et / 800 110 TQ V+ SL

CAN1-4.3-M85 (ANSI Z21.10.3)

≤ 50,000 Btu/h and ≤ 200,000 Btu/h

≥ 4,000 Btu/h/gal and ≤ 2 gal

0.62-0,.0005 V EF CSA-4.3-M98 (DOE 10 CFR Part 430)

# 200,000 Btu/h ≥ 4,000 Btu/h/gal and < 10 gal

80% Et CSA-4.3-M98 (ANSI Z21.10.3)

Gas Instantaneous Water Heaters

≥ 200,000 Btu/h ≥ 4,000 Btu/h/gal and ≥ 10 gal

77% Et 2.3 + 6.7/V SL

CSA-4.3-M98) (ANSI Z21.10.3)

≤ 105,000 Btu/h ≥ 20 gal 0.59-0.0005V EF CAN/CSAB211-M90 (DOE 10 CFR Part 430)

Oil Storage Water Heaters


CSA B140.12-76R91 (ANSI Z21.10.3)

≤ 210,000 Btu/h & ≥ 4,000 Btu/h/gal and ≤ 2 gal

0.59-0.0019VT EF CSA B140.12-76R91 (DOE 10 CFR Part 430)

> 210,000 Btu/h ≥ 4,000 Btu/h/gal and < 10 gal

80% Et CSA B140.12-76R91 (ANSI Z21.10.3)

Oil Instantaneous Water Heaters

> 210,000 Btu/h ≥ 4,000 Btu/h/gal and ≥ 10 gal

78% Et / 800 110 TQ V+ SL

CSA B140.12-76R91 (ANSI Z21.10.3)

Hot Water Supply Boilers Gas and Oil

≤ 12,500,000 Btu/h

≥ 4,000 Btu/h/gal and < 10 gal

80% Et (ANSI Z21.10.3)

Hot Water Supply Boilers Gas

≥ 4,000 Btu/h/gal and ≥ 10 gal

80% Et / 800 110 TQ V+ SL

(ANSI Z21.10.3)


30

Hot Water Supply Boilers Oil


78% Et / 800 110 TQ V+ SL

(ANSI Z21.10.3)

Pool Heaters, Gas All 78% Et CGA P.6-1993 (ASHRAE 146)

Pool Heaters, Oil All 75% Et CSA B140.12 (ASHRAE 146)

Heat Pump Pool Heaters

All 4.0 COP (ASHRAE 146)

Unfired Storage Tanks

All R-12 NONE

Et is the thermal efficiency V is the storage capacity in litres VT is the storage capacity in gallons Q is the nameplate input rate in Btu/h


31



Adopt ANSI/ASHRAE/IESNA Standard 90.1-2004 except for its envelope section. Envelope requirements of ANSI/ASHRAE/IESNA 90.1-2004 would be replaced with the current envelope requirements set out in Supplementary Guideline (SG-1). Maintain current reference to the Model National Energy Code for Buildings, 1997 (MNECB) with some modifications to its envelope, electrical and mechanical sections. Envelope requirements of the MNECB would be replaced with the current envelope requirements set out in Supplementary Guideline (SG-1). The Supplementary Guidelines would state increased energy efficiency levels for electrical and mechanical systems designed under the MNECB. The Supplementary Guidelines would also be modified to state new minimum energy efficiency requirements for equipment and new lighting power allowances. These new requirements would result in lighting and equipment energy efficiency levels for the MNECB that are similar to the energy efficiency levels of ANSI/ASHRAE/IESNA 90.1-2004. SG-1 will also include consequential and editorial changes. In addition, SG-1 will include a simplified prescriptive approach for non-residential buildings within the scope of Part 9 of the Building Code.


(a) the ASHRAE/IES 90.1-1989, “Energy Efficient Design of New Buildings Except Low-Rise Residential Buildings” and the Supplementary Guidelines


32

to the 1997 OBC, or (b) the Model National Energy Code for Buildings, 1997.


(a) the ANSI/ASHRAE/IESNA Standard 90.1-2004, “Energy Standard for Buildings Except Low-Rise Residential Buildings” and the Supplementary Guidelines to the 1997 OBC, or


Supplementary Guideline (SG-1) Section 8 “Building Envelope” of SG-1 would apply to both ASHRAE/IES 90.1-2004. and MNECB-1997. The following revisions to SG-1 would also apply to both ASHRAE/IES 90.1-2004. and MNECB-1997. The following tables would be replaced or added to SG-1: Replace Table 5-1 (minimum motor efficiency levels) in SG-1 with the following:


33

Minimum Nominal Efficiency for Motors

Open Motors Enclosed Motors Speed (RPM) Speed (RPM)

3600 1800 1200 900 3600 1800 1200 900 Number of Poles Number of Poles

Motor HP

2 4 6 8 2 4 6 8 1 75.5 82.5 80.0 84.0 75.5 82.5 80.0 74.0

1.5 82.5 84.0 84.0 75.5 82.5 84.0 85.5 77.0 2 84.0 84.0 85.5 85.5 84.0 84.0 86.5 82.5 3 84.0 86.5 86.5 86.5 85.5 87.5 87.5 84.0 5 85.5 87.5 87.5 87.5 87.5 87.5 87.5 85.5

7.5 87.5 88.5 88.5 88.5 88.5 89.5 89.5 85.5 10 88.5 89.5 90.2 89.5 89.5 89.5 89.5 88.5 15 89.5 91.0 90.2 89.5 90.2 91.0 90.2 88.5 20 90.2 91.0 91.0 90.2 90.2 91.0 90.2 89.5 25 91.0 91.7 91.7 90.2 91.0 92.4 91.7 89.5 30 91.0 92.4 92.4 91.0 91.0 92.4 91.7 91.0 40 91.7 93.0 93.0 91.7 91.7 93.0 93.0 91.0 50 92.4 93.0 93.0 91.7 92.4 93.0 93.0 91.7 60 93.0 93.6 93.6 92.4 93.0 93.6 93.6 91.7 75 93.0 94.1 93.6 93.6 93.0 94.1 93.6 93.0 100 93.0 94.1 94.1 93.6 93.6 94.5 94.1 93.0 125 93.6 94.5 94.1 93.6 94.5 94.5 94.1 93.6 150 93.6 95.0 94.5 93.6 94.5 95.0 95.0 93.6 175 94.5 95.0 94.5 93.6 95.0 95.0 95.0 94.1 200 94.5 95.0 94.5 93.6 95.0 95.0 95.0 94.1

Replace Table 6-4 (Fluorescent Ballast Efficacy Factors) in SG-1 with the following table:

Fluorescent Lamp Ballast Efficacy Factors

Application for Operation of:

Ballast Input Voltage

Total Nominal Lamp Watts

EE Act Ballast Efficacy Factor

One F40T12 Lamp 120V 277V 347V

40 40 40

2.29 2.29 2.22


80 80 80

1.17 1.17 1.12


150 150 150

0.63 0.63 0.62

Two 110W/F96T12HO Lamps

120V 277V 347V

220 220 220

0.390 0.390 0.380


64 64 64

1.250 1.230 1.200


34

The following Tables would be used in lieu of Table 4.3.1.2. of the MNECB-1997.

Lighting Power Densities Using the Building Area Method

Lighting Power Density Building Area Typea (W/ft2)

Automotive Facility 0.9 Convention Center 1.2 Court House 1.2 Dining: Bar Lounge/Leisure 1.3 Dining: Cafeteria/Fast Food 1.4 Dining: Family 1.6 Dormitory 1.0 Exercise Center 1.0 Gymnasium 1.1 Health Care-Clinic 1.0 Hospital 1.2 Hotel 1.0 Library 1.3 Manufacturing Facility 1.3 Motel 1.0 Motion Picture Theater 1.2 Multi-Family 0.7 Museum 1.1 Office 1.0 Parking Garage 0.3 Penitentiary 1.0 Performing Arts Theater 1.6 Police/Fire Station 1.0 Post Office 1.1 Religious Building 1.3 Retail 1.5 School/University 1.2 Sports Arena 1.1 Town Hall 1.1 Transportation 1.0 Warehouse 0.8 Workshop 1.4

a In cases where both general building area type and a specific building area type are listed, the specific building area type shall apply.


35

The following Tables would be used in lieu of Table 4.3.3.4. of the MNECB-1997. Lighting Power Densities Using the Space-by-Space Method

Common Space Typesa LPD (W/ft2) Building Specific Space Types LPD (W/ft2) Office-Enclosed 1.1 Gymnasium/Exercise Center Office-Open Plan 1.1 Playing Area 1.4 Conference/Meeting/Multipurpose 1.3 Exercise Area 0.9 Classroom/Lecture/Training 1.4 Courthouse/Police Station/Penitentiary For Penitentiary 1.3 Courtroom 1.9 Lobby 1.3 Confinement Cells 0.9 For Hotel 1.1 Judges Chambers 1.3 For Performing Arts Theater 3.3 Fire Stations For Motion Picture Theater 1.1 Fire Station Engine Room 0.8 Audience/Seating Area 0.9 Sleeping Quarters 0.3 For Gymnasium 0.4 Post Office─Sorting Area 1.2 For Exercise Center 0.3 Convention Center─Exhibit Space 1.3 For Convention Center 0.7 Library For Penitentiary 0.7 Card File and Cataloging 1.1 For Religious Buildings 1.7 Stacks 1.7 For Sports Arena 0.4 Reading Area 1.2 For Performing Arts Theater 2.6 Hospital For Motion Picture Theater 1.2 Emergency 2.7 For Transportation 0.5 Recovery 0.8 Atrium─First Three Floors 0.6 Nurse Station 1.0 Atrium─Each Additional Floor 0.2 Exam/Treatment 1.5 Lounge/Recreation 1.2 Pharmacy 1.2 For Hospital 0.8 Patient Room 0.7 Dining Area 0.9 Operating Room 2.2 For Penitentiary 1.3 Nursery 0.6 For Hotel 1.3 Medical Supply 1.4 For Motel 1.2 Physical Therapy 0.9 For Bar Lounge/Leisure Dining 1.4 Radiology 0.4 For Family Dining 2.1 Laundry─Washing 0.6 Food Preparation 1.2 Automotive─Service/Repair 0.7 Laboratory 1.4 Manufacturing Restrooms 0.9 Low Bay (<25 ft Floor to Ceiling Height) 1.2 Dressing/Locker/Fitting Room 0.6 High Bay (≥25 ft Floor to Ceiling Height) 1.7 Corridor/Transition 0.5 Detailed Manufacturing 2.1 For Hospital 1.0 Equipment Room 1.2 For Manufacturing Facility 0.5 Control Room 0.5 Stairs─Active 0.6 Hotel/Motel Guest Rooms 1.1 Active Storage 0.8 Dormitory─Living Quarters 1.1 For Hospital 0.9 Museum Inactive Storage 0.3 General Exhibition 1.0 For Museum 0.8 Restoration 1.7 Electrical/Mechanical 1.5 Bank/Office─Banking Activity Area 1.5 Workshop 1.9 Religious Buildings Worship Pulpit, Choir 2.4 Fellowship Hall 0.9 a In cases where both a common space type and a building specific type are listed, the building specific space

type shall apply.


36

Lighting Power Densities Using the Space-by-Space Method (Cont’d) Common Space Typesa LPD (W/ft2) Building Specific Space Types LPD (W/ft2)

Retail [For accent lighting, see 9.3.1.2.1©]

Sales Area 1.7 Mall Concourse 1.7 Sports Arena Ring Sports Area 2.7 Court Sports Area 2.3 Indoor Playing Field Area 1.4 Warehouse Fine Material Storage 1.4 Medium/Bulky Material Storage 0.9 Parking Garage─Garage Area 0.2 Transportation Airport─Concourse 0.6 Air/Train/Bus─Baggage Area 1.0 Terminal─Ticket Counter 1.5 a In cases where both a common space type and a building specific type are listed, the building specific space

type shall apply.


37

HEATING VENTILATING AND AIR CONDITIONING (HVAC) The greater of the energy efficiency requirements set out in the tables below or the ANSI/ASHRAE/IESNA Standard 90.1-2004 or the Energy Efficiency Act would apply. The following Tables shall be used in lieu of Table 5.2.13.1. of the MNECB-1997. Unitary Air Conditioners and Condensing Units, Electrically Operated, Minimum Efficiency Requirements




Minimum Efficiency*

ASHRAE 90.1-2004* Minimum Efficiency


< 65,000** Split System 10.0 SEER CSA C273.3

(ARI 210/240) < 65,000** Single Package 9.7 SEER

CSA C656 (ARI 210/240)

$65,000 and < 135,000



(ARI 210/240) $135,000 and



(ARI 340/360) $ 240,000 and


9.5 EER 9.7 IPLV

(ARI 340/360)

Air Conditioners, Air Cooled


9.2 EER 9.4 IPLV

(ARI 340/360)

Split System

10.0 SEER (before 1/23/2006)

10.9 SEER (as of 1/23/2006)

12 SEER (as of 1/23/2010)

Through-the-Wall, Air Cooled

≤30,000


10.6 SEER (as of 1/23/2006)

12.0 SEER (as of 1/23/2010)

(ARI 210/240)

Small-Duct High-Velocity, Air Cooled

<65,000 Split System 10 SEER (ARI 210/240)


12.1 EER (ARI 210/240)

$ 65,000 and < 135,000



(ARI 210/240) $135,000 and



(ARI 340/360)

Air Conditioners, Water and



11.0 EER 10.3 IPLV

(ARI 340/360)

Condensing Units, Air Cooled

$135,000 9.9 EER 11.0 IPLV

CSA C746 (ARI 365)

Condensing Units, Water or


$135,000 12.9 EER 12.9 IPLV

CSA C746 (ARI 365)

*IPLV’s are only applicable to equipment with capacity modulation. For units with other than electric resistance heat deduct 0.2 EER and 0.2 IPLV **Single-phase air-cooled air conditioners are covered by DOE in the U.S.


38

Unitary and Applied Heat Pumps, Electrically Operated, Minimum Efficiency Requirements




Minimum Efficiency



< 65,000** Split System 10.0 SEER 13 SEER (as of 1/26/06)

CSA-C273.3 (ARI 210/240)

< 65,000** Single Package 9.7 SEER 13 SEER (as of 1/26/06)

CSA-C656 (ARI 210/240)

$ 65,000 and < 135,000


10.1 EER 10.4 IPLV

CSA-C746 (ARI 210/240)

$135,000 and $240,000


9.3(split)/8.5(single) EER9.5 IPLV

CSA-C746 (ARI 340/360)

Air Cooled, (Cooling Mode)

> 240,000 Split System and Single Package

9.0 EER 9.2 IPLV

(ARI 340/360)

Split System

10.0 SEER (before 1/23/2006)

10.9 SEER (as of 1/23/2006)

12 SEER (as of 1/23/2010)

Through-the-Wall (Air Cooled, Cooling Mode)

≤30,000


10.6 SEER (as of 1/23/2006)

12.0 SEER (as of 1/23/2010)

(ARI 210/240)

Small-Duct High-Velocity (Air Cooled, Cooling Mode)

< 65,000 Split System 10 SEER (ARI 210/240)

< 17,000 86°F Entering Water 11.2 EER (ISO-13256-1)

≥ 17,000 and < 65,000


Water-Source (Cooling Mode)

$ 65,000 < 135,000 Btu/h


Groundwater Source (Cooling Mode)


Ground Source (Cooling Mode)



Split System 5.9 HSPF V 6.7 HSPF V(as of 1/26/06)

CSA-C273.3 (ARI 210/240)


Single Package 5.7 HSPF V 6.7 HSPF V(as of 1/26/06)

CSA-C656 (ARI 210/240)


3.2 COP $ 65,000 and < 135,000

(Cooling Capacity) 17°F db/15° wb (Outdoor Air)

2.2 COP

CSA-C746 (ARI 210/240)


3.1 COP

Air Cooled, (Heating Mode)

$ 135,000 (Cooling Capacity)


2.0 COP

CSA-C746 (ARI 340/360)



39

Unitary and Applied Heat Pumps, Electrically Operated, Minimum Efficiency Requirements (Cont’d)




Minimum Efficiency



Split System

(before 1/23/2006) 7.1 HSPF

(as of 1/23/2006) 7.4 HSPF

(as of 1/23/2010)

Through-the-Wall (Air Cooled, Heating

Mode)

≤30,000 (Cooling Capacity)

Single Package

(before 1/23/2006) 7.0 HSPF

(as of 1/23/2006) 7.4 HSPF

(as of 1/23/2010)

(ARI 210/240)

Small-Duct High-Velocity

(Air Cooled, Heating Mode)


Split System 6.8 HSPF (ARI 210/240)

Water-Source (Heating Mode)



Groundwater Source (Heating Mode)



Ground Source (Heating Mode)





40

Water Chilling Packages, Minimum Efficiency Requirements

Equipment Type Size Category Energy

Efficiency Act Minimum Efficiency


< 150 tons 2.80 COP 3.05 IPLV

CSA C743 (ARI 550, ARI 590)

Air Cooled, With Condenser,

Electrically Operated $ 150 tons 2.80 COP

3.05 IPLV CSA C743

(ARI 550, ARI 590)

Air Cooled, Without Condenser, Electrically Operated

All Capacities 3.1 3.45 IPLV

CSA C743 (ARI 550, ARI 590)


(Reciprocating)

All Capacities 4.2 COP 5.05 IPLV

CSA C743 (ARI 590)

< 150 tons 4.45 COP 5.20 IPLV

CSA C743 (ARI 550)

$ 150 tons and # 300 tons

4.90 COP 5.60 IPLV

CSA C743 (ARI 550)


(Rotary Screw and Scroll)

$ 300 tons 5.50 COP 6.15 IPLV

CSA C743 (ARI 550)

< 150 tons 5.00 COP 5.25 IPLV

CSA C743 (ARI 550)

$ 150 tons and < 300 tons

5.55 COP 5.90 IPLV

CSA C743 (ARI 550)

Water Cooled, Electrically Operated,

(Centrifugal)

$ 300 tons

6.40 IPLV

CSA C743 (ARI 550)

Single Effect Absorption Air Cooled


Single Effect Absorption Water Cooled


Double Effect Absorption Indirect-Fired

All Capacities

1.05 IPLV

CSA C743 (ARI 560)

Double Effect Absorption Direct-Fired

All Capacities

1.00 IPLV

CSA C743 (ARI 560)


41

Packaged Terminal Air Conditioners, Packaged Terminal Heat Pumps, Single-Package Vertical Air Conditioners, Single-Package Vertical Heat Pumps, Room Air Conditioners and Room Air Conditioner

Heat Pumps, Electrically Operated, Minimum Efficiency Requirements


Energy Efficiency Act Minimum Efficiency




CSA C744 (ARI 310/380)

PTAC (Cooling Mode)

New Construction

PTAC (Cooling Mode) Replacements b

All Capacities 95° F db Outdoor Air 10.9 – (0213 x Capc/1000) EER

CSA C744 (ARI 310/380)


CSA C744 (ARI 310/380)

PTHP (Cooling Mode)

New Construction

PTHP (Cooling Mode) Replacements b


CSA C744 (ARI 310/380)

PTHP (Heating Mode) New Construction


CSA C744 (ARI 310/380)

PTHP (Heating Mode) Replacements b


CSA C744 (ARI 310/380)

SPVAC (Cooling Mode) All Capacities 95° F db/ 75° F wb Outdoor Air

8.6 EER (ARI 390)

SPVHP (Cooling Mode) All Capacities 95° F db/ 75° F wb Outdoor Air

8.6 EER (ARI 390)

SPVHP (Heating Mode) All Capacities 47° F db/ 43° F wb Outdoor Air

2.7 COP (ARI 390)

< 6,000 Btu/h 9.7 EER $ 6,000 Btu/h and

< 8,000 Btu/h 9.7 EER

Room Air Conditioners, With Louvered Sides

$ 8,000 Btu/h and < 14,000 Btu/h

9.8 EER



≥ 14,000 Btu/h & < 20,000 Btu/h

9.7 EER Room Air Conditioners, With Louvered Sides

$ 20,000 Btu/h 8.5 EER



< 8,000 Btu/h 9.0 EER $ 8,000 Btu/h & < 20,000 Btu/h

8.5 EER Room Air Conditioners, Without Louvered Sides

$20,000 Btu/h 8.5 EER

CSA –C368.1 (ANSI/AHAM RAC-1)

< 20,000 Btu/h 9.0 EER Room Air Conditioner Heat Pumps With Louvered Sides

$20,000 Btu/h 8.5 EER


<14,000 Btu/h 8.5 EER Room Air Conditioner Heat Pumps Without Louvered

Sides $14,000 Btu/h 8.0 EER


Room Air Conditioner, Casement Only


Room Air Conditioner, Casement-Slider


a Capc is the rated cooling capacity in Btu/h. If unit capacity is less that 7,000 Btu/h, use 7,000 Btu/h in calculation. If greater than 15,000 Btu/h, use 15,000 Btu/h in calculation. b Replacements must be factoring �abelled as follows: Manufactured for replacement applications only; net to be installed in new construction. Replacement efficiencies apply only to units with existing wall sleeves/less than 16 in high and less than 42 in wide.


42

Warm Air Furnaces and Combination Warm Air Furnaces/Air-Conditioning Units, Warm Air Duct Furnaces and Units Heaters Minimum Efficiency Requirements




Minimum Efficiency


< 225,000 Btu/h (65.95 kW)

78 % AFUE CGA-P.2 (DOE 10 CFR

Part 430 or ANSI Z21.47)

≥ 225,000 Btu/h & <400,000 BTU/h (≥ 65.95 kW and

< 117 kW)

Maximum Capacity*** 75% Ec CAN/CGA-2.3 (ANSI Z21.47)

Warm Air Furnace, Gas-Fired

≥ 400,000 Btu/h (≥ 117 kW)

Maximum Capacity*** 80% Et CGA-P.8 (ANSI Z21.47)

< 225,000 Btu/h (65.95 kW)

78 % AFUE CAN/CSA B212 (DOE 10 CFR

Part 430 or UL 727)

Warm Air Furnace, Oil-Fired

≥ 225,000 Btu/h Maximum Capacity*** 80% Ec CSA B140.4 (UL 727)

Warm Air Duct Furnaces, Gas-Fired

All Capacities Maximum Capacity*** 80% Et CAN/CGA-2.8 (ANSI Z83.9)

Warm Air Unit Heaters, Gas-Fired

All Capacities Maximum Capacity*** 80% Ec CAN/CGA-2.6 (ANSI Z83.8)

Unit Heaters, Oil-Fired

All Capacities Maximum Capacity*** 80% Ec CSA B140.4 (UL 731)

Et is thermal efficiency and Ec is combustion efficiency. Ec = 100% less flue losses *Year-round heating/cooling units not covered by DOE may comply with either rating. **Units must also include an intermittent ignition device (IID), have jacked losses .75% of input rating and either power venting or flue damper ***Maximum rating as provided for and allowed by unit controls.


43

Gas-Fired and Oil-Fired Boilers, Minimum Efficiency Requirements




Minimum Efficiency



< 300,000 Btu/h Hot Water Steam

80% AFUE 75% AFUE

CGA P.2 (DOE 10

CFR Part 430)

$ 300,000 Btu/h & # 2,500,000

Maximum Capacity 75% Et CGA 3.3 (Hydronics Institute)

Boilers, Gas-Fired


80% Ec 80% Ec

CGA 3.3 (Hydronics Institute)

< 300,000 Btu/h 80% SEUE CSA B212-00

(DOE 10 CFR Part 430)

$ 300,000 Btu/h & # 2,500,000


Boilers, Oil-Fired


83% Ec 83% Ec

CSA B140.7.2 (Hydronics Institute)

$ 300,000 Btu/h & # 2,500,000


Boilers, Oil-Fired (Residual)


83% Ec 83% Ec

CSA B140.7.2-1967

(Hydronics Institute )

Et is thermal efficiency and Ec is combustion efficiency. Ec = 100% less flue losses. Maximum capacity as provided for and allowed by the unit’s controls.

Cooling Tower Performance Requirements


Energy Efficiency Act Performance

Required

ASHRAE 90.1-2004Performance

Required


Propeller or Axial Fans All Capacities 95/85 °F Entering/Leaving75 °F wb Outdoor Air


Centrifugal Fans All Capacities 95/85 °F Entering/Leaving75 °F wb Outdoor Air


Air- cooled Condensers

All Capacities 125 °F Condensing TempR-22 Test Fluid

190 °F Entering Gas Temp95 °F Entering db 15 °F Subcooling

≥176,000 Btu/h/HP (ARI 460)

For purpose of this table, cooling tower performance is maximum flow rating divided by fan nameplate rated motor power. Air-cooled condenser performance is defined as heat rejected from the refrigerant divided by the fan nameplate rated motor power.


44

SERVICE WATER HEATING The greater of the energy efficiency requirements set out in the tables below or the ANSI/ASHRAE/IESNA Standard 90.1-2004 or the Energy Efficiency Act would apply. The following Table would be used in lieu of Table 6.2.2.1. of the MNECB-1997.

Water Heating Equipment, Performance Requirements



Minimum Efficiency



≤ 12 kW Resistance ≥ 20 gal

0.93-0.000349V EF CAN/CSA-C745 (DOE 10 CFR Part 430)

> 12 kW Resistance ≥ 20 gal

20 35 TV SL+

(ANS Z21.10.3)

Electric Storage Water Heaters

≤ 24 Amps and ≤ 250 volts

Heat Pump 0.93-0.00132 V EF CAN/CSA-C745 (DOE 10 CFR Part 430)

≤ 75,000 Btu/h ≥ 20 gal (< 100 gal tank for CGA)

0.67-0.0005V EF CGA P.3-95 (DOE 10 CFR Part 430)

Gas Storage Water Heaters


CAN1-4.3-M85 (ANSI Z21.10.3)

≤ 50,000 Btu/h and ≤ 200,000 Btu/h

≥ 4,000 Btu/h/gal and ≤ 2 gal

0.62-0,.0005 V EF CSA-4.3-M98 (DOE 10 CFR Part 430)

# 200,000 Btu/h ≥ 4,000 Btu/h/gal and < 10 gal

80% Et CSA-4.3-M98 (ANSI Z21.10.3)

Gas Instantaneous Water Heaters

≥ 200,000 Btu/h ≥ 4,000 Btu/h/gal and ≥ 10 gal

77% Et 2.3 + 6.7/V SL

CSA-4.3-M98) (ANSI Z21.10.3)

≤ 105,000 Btu/h ≥ 20 gal 0.59-0.0005V EF CAN/CSAB211-M90 (DOE 10 CFR Part 430)

Oil Storage Water Heaters


CSA B140.12-76R91 (ANSI Z21.10.3)

≤ 210,000 Btu/h & ≥ 4,000 Btu/h/gal and ≤ 2 gal

0.59-0.0019VT EF CSA B140.12-76R91 (DOE 10 CFR Part 430)

> 210,000 Btu/h ≥ 4,000 Btu/h/gal and < 10 gal

80% Et CSA B140.12-76R91 (ANSI Z21.10.3)

Oil Instantaneous Water Heaters

> 210,000 Btu/h ≥ 4,000 Btu/h/gal and ≥ 10 gal

78% Et / 800 110 TQ V+ SL

CSA B140.12-76R91 (ANSI Z21.10.3)

Hot Water Supply Boilers Gas and Oil

≤ 12,500,000 Btu/h

≥ 4,000 Btu/h/gal and < 10 gal

80% Et (ANSI Z21.10.3)

Hot Water Supply Boilers Gas


80% Et / 800 110 TQ V+ SL

(ANSI Z21.10.3)


45

Hot Water Supply Boilers Oil


78% Et / 800 110 TQ V+ SL

(ANSI Z21.10.3)

Pool Heaters, Gas All 78% Et CGA P.6-1993 (ASHRAE 146)

Pool Heaters, Oil All 75% Et CSA B140.12 (ASHRAE 146)

Heat Pump Pool Heaters

All 4.0 COP (ASHRAE 146)

Unfired Storage Tanks

All R-12 NONE

Et is the thermal efficiency V is the storage capacity in litres VT is the storage capacity in gallons Q is the nameplate input rate in Btu/h


46



Adopt and amend ANSI/ASHRAE/IESNA Standard 90.1-2004 and the Model National Energy Code for Buildings, 1997 (MNECB) as described in Option 2 and also increase the envelope requirements for electrically heated buildings by amending the Supplementary Guidelines. SG-1 will also include consequential and editorial changes. In addition, SG-1 will include a simplified prescriptive approach for non-residential buildings within the scope of Part 9 of the Building Code.



(b) the Model National Energy Code for Buildings, 1997.



47

(a) the ANSI/ASHRAE/IESNA Standard 90.1-2004, “Energy Standard for Buildings Except Low-Rise Residential Buildings” and the Supplementary Guidelines to the 1997 OBC, or


Supplementary Guideline (SG-1) Changes to the tables in the Supplementary Guideline would be identical to those set out in Option 2 of Area 2, except for electrically-heated buildings, which would be required to satisfy the requirements of the following tables:

Mandatory Provisions – Building Assemblies in Contact with the Ground Minimum Effective Thermal Resistance (RSI-value), m2 oC/W

Assembly Description Region A – < 5000 Heating Degree-Days

Region B – ≥ 5000 Heating Degree-Days

Walls and Roofs 2.40 2.70 Floors-on-ground:

- with imbedded heating cables (full floor area)

- other floors-in-ground less than 0.6 m below grade (at perimeter only)

1.08

1.08

1.50

1.08

Prescriptive Requirements – Above-ground Building Assemblies

Maximum Overall Thermal Transmittance (U-value), W/m2 oC Assembly Description Region A –

< 5000 Heating Degree-Days Region B –

< 5000 Heating Degree-Days Walls and Roofs:

- attic-type roofs - all other roofs

0.140 0.290

0.120 0.270

Walls 0.330 0.270 Floors 0.290 0.270

Prescriptive Requirements – Fenestration Maximum Overall Thermal Transmittance (U-value), W/m2 oC

Assembly Description Fenestration-to-Wall Ratio

Region A– < 5000 Heating Degree-Days

Region B– < 5000 Heating Degree-Days

Fixed Glazing without Sash Up to 0.4 > 0.4 to 0.5 > 0.5 to 0.6 > 0.6 to 0.7 > 0.7 to 0.8 > 0.8 to 0.9

> 0.9

2.10 1.80 1.70 1.60 1.50 1.40 1.30

1.80 1.70 1.60 1.50 1.50 1.40 1.40

Operable or Fixed Glazing with Sash Up to 0.4 > 0.4 to 0.5 > 0.5 to 0.6 > 0.6 to 0.7 > 0.7 to 0.8 > 0.8 to 0.9

> 0.9

2.80 2.40 2.20 2.00 1.90 1.70 1.70

2.80 2.50 2.30 2.10 2.00 1.90 1.80


48

AREA 3 – ENERGY EFFICIENCY LABELLING FOR HOUSES The energy efficiency labelling of houses is a method of rating a house with respect to its level of energy efficiency. The Building Code currently does not set out any requirements for the labelling of houses. Area 3 of this consultation document includes potential amendments to the Building Code to introduce such a requirement and would include labels that identify the level of energy efficiency achieved. There are several incentive-based and voluntary labelling programs in North America. Some of the programs are performance-based, while others are prescriptive-based and award points on the use of specific elements, systems, or processes. These programs generally require third party verification testing and address energy criteria that go beyond the scope of the Building Code Act, 1992. For example some programs contain requirements for household appliances or the home’s proximity to public transit. The proposed energy efficiency labelling for houses generally relies upon the existing enforcement structure set out in the Building Code Act, 1992 and Building Code and energy efficiency criteria that fall within the scope of the current Building Code Act, 1992. The proposed energy efficiency labelling for houses is also designed to recognize existing incentive-based and voluntary labelling programs currently in use in North America. Actual levels and criteria will be adjusted to reflect the outcome of the consultation on Area 1 – Part 9 Houses.

AREA 3 (CHANGE # A3)


Require that houses bear a label that identifies the level of energy efficiency achieved.

EXISTING BUILDING CODE PROVISION

None


49

PROPOSED BUILDING CODE AMENDMENT 1.1.4.2. Symbols and Other Abbreviations (1) Add EEL…………Energy Efficiency Level 9.25.4.5. Labelling (1) This article applies to detached houses, semi-detached houses, townhouses and

row houses. (2) Every dwelling unit shall have a permanent label affixed in a prominent location

adjacent to the main electrical distribution panel indicating:

(a) Energy Efficiency Level (EEL) category of the dwelling unit as determined from Sentence (2),

(b) thermal insulation levels for roof /ceiling, walls, foundation walls, (c) year of construction, (d) type of fuel used for space heating, and (e) where there is on-site energy generation, type of the on-site energy.

(3) For the purpose of energy efficiency labelling, a dwelling unit shall be categorized

as

(a) EEL1 when the dwelling unit conforms to Article 9.25.1.1.to 9.25.4.4., (b) EEL2 when the dwelling unit conforms to Clause 9.25.4.5.(3)(a) and

Sentence 9.25.4.5.(4)., (c) EEL3 when the dwelling unit conforms to Clause 9.25.4.5.(3)(b) and

Sentence 9.25.4.5.(5)., (d) EEL4 when the dwelling unit conforms to Clause 9.25.4.5.(3)(c) and

Sentence 9.25.4.5.(6)., or (e) EEL5 when the dwelling unit conforms to 9.25.4.5.(3)(d) and Sentence

9.25.4.5.(7). (4) Where a dwelling unit is categorized as EEL2, the thermostat used for controlling

space heating shall be programmable with at least two different programming periods and at least four possible temperature settings, and the dwelling unit shall comply with the following:

(a) where a furnace is used, the gas-fired furnaces and oil-fired furnaces shall

have greater of minimum Annual Fuel Utilization Efficiency (AFUE) required by the Ontario Energy Efficiency Act, or AFUE of 90% and 85 % respectively, or

(b) the basement insulation required in Table 9.25.2.1. shall extend to the floor


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level of the basement. (5) Where a dwelling unit is categorized as EEL3, the dwelling unit shall comply with

Sentence 9.25.4.5.(4) and Clauses 9.25.4.5.(4) (a) and (b) (6) Where a dwelling unit is categorized as EEL4,

(a) The minimum thermal resistance of insulation shall conform to Table 9.25.4.5A

Table 9.25.4.5A

Minimum Thermal Resistance of Insulation to be Installed based on Degree Day Zones(1)

Forming Part of Sentence 9.25.4.5.(6)

RSI (R) Value Required Building Element Exposed to the Exterior or to Unheated Space Zone 1


5000 or more


Zone 1 & 2 Ceiling below attic or roof space 7.00 (R40) 8.80 (R50) 8.80 (R50) Roof assembly without attic or roof space 5.40 (R31) 5.40 (R31) 5.40 (R31) Wall other than foundation wall 4.23 (R24) 4.70 (R27) 5.10 (R29) Foundation walls enclosing heated space (Full Height) 2.11 (R12) 3.25 (R19) 3.25 (R19) Floor, other than slab-on-ground 5.40 (R31) 5.40 (R31) 5.40 (R31) Slab-on ground containing pipes or heating ducts 1.76 (R10) 1.76 (R10) 1.76 (R10) Slab-on-ground not containing pipes or heating ducts 1.76 (R10) 1.76 (R10) 1.76 (R10)


(b) The glazing and sliding glass doors shall conform to Table 9.25.4.5B

Table 9.25.4.5B Energy Ratings (ER) and Minimum Thermal Resistance (R) for Glazing and Sliding

Doors to be Installed based on Degree Day Zones(1) Forming Part of Sentence 9.25.4.5.(6)


Glazing or Glass Doors Exposed to the Exterior or to Unheated Space Zone 1


5000 or more


Zone 1 & 2 R value where window area is <=15% of above grade wall area

0.55 m²EC/W 0.63 m²EC/W 0.63 m²EC/W

ERop/ERfix values where window area is <=15% of above grade wall area

-12/-2 W/m² -10/0 W/m² -10/0 W/m²

R value where window area is >15% of above grade wall area 0.63 m²EC/W 0.71 m²EC/W 0.71 m²EC/W ERop/ERfix values where window area is >15% of above grade wall area -10/0 W/m² -8/+2 W/m² -8/+2 W/m²

R value for skylights 0.36 m²EC/W 0.38 m²EC/W 0.38 m²EC/W CSA-A 440 Rating A3 A3 A3



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(c) Where a direct expansion ground source heat pump is installed it shall have

greater of minimum rated efficiency required by the Energy Efficiency Act or 15EER/3.5 COP, and where a close loop ground source heat pump is installed it shall have greater of minimum rated efficiency required by the Energy Efficiency Act or 14.1 EER/3.5 COP,

(d) Where a aplit system air-cooled air conditioner is installed, it shall have greater of minimum rated efficiency required by the Energy Efficiency Act or 15 SEER, and

(e) The domestic hot water heater shall have minimum energy factor of 0.67-0.0005V, where V is the volume in liters.

(7) Where a dwelling unit is categorized as EEL5,

(a) The dwelling unit shall be equipped with a HRV, (b) The annual energy consumption of the dwelling unit shall be 30 % less than

the annual energy consumption of a reference category EEL1 dwelling unit, (c) Annual energy consumption shall be calculated in accordance with

Sentences (8) and (9), and (d) Air leakage of a house shall be determined in accordance with test

procedures outlined in CAN/SGSB-B149.10M “Determination of the Air Tightness of Building Envelopes by the Fan Depressurization Method.”

(8) A year-around energy simulation tool shall be used in calculating the annual

energy consumption of a dwelling unit. (9) For the purpose of comparison, the reference dwelling unit shall have the same

size, shape and orientation of the proposed building. (10) For the Energy Efficiency Levels, EEL2, EEL3, EEL4, EEL5; based on calculation

method described in Sentences (8) and (9); where electricity generated on-site, trade-offs shall be permitted based on reductions achieved in the consumption of electricity purchased from the grid system and Sentence (11).

(11) For the purposes of sentence 9, trade-off means a reduction in efficiency

requirements prescribed in this Article. An appendix Note will: • Define equivalencies for houses meeting specified existing incentive-based and

voluntary energy efficiency labelling programs. • Set out the form of the label. • Establish criteria for year-around energy simulation methods and tools.


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AREA 4 – GREEN BUILDING TECHNOLOGIES Area 4 of this consultation document includes potential amendments to the Building Code to encourage the use of green technologies in buildings and remove any perceived barriers for their use.

AREA 4 - (CHANGE # A4 - 1)


Solar Photovoltaic Systems convert sunlight into electricity. The proposed amendment would clarify requirements for the installation of photovoltaic systems and solar collector systems on roofs.

EXISTING BUILDING CODE PROVISION

None

PROPOSED BUILDING CODE AMENDMENT 3.1.5.24. A combustible solar collector system is permitted to be installed above roofing material on a building required to be of non-combustible construction provided it is designed by an architect or professional engineer. 5.6.2.3. Solar Collector Systems

(1) A solar collector system is permitted to be installed above the roofing material described in Article 5.6.1.2. (See Appendix)

9.25.2.1. (2) A solar collector system is permitted to be installed above the roofing material described in Sentence (1). (See Appendix). Appendix Note: This sentence also applies to photovoltaic (PV) panels or systems.


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Wind Turbines convert energy from wind into electricity. The proposed amendment would recognize wind turbines as designated structures and set out structural requirements.

EXISTING BUILDING CODE PROVISION 2.1.2.1.(1) Part 4 applies to the following designated structures:

(a) a retaining wall exceeding 1 000 mm (3 ft 3 in) in exposed adjacent to …. (h) an outdoor pool that has a water depth greater than 3.5 m (11 ft 6 in) at any

point.

PROPOSED BUILDING CODE AMENDMENT 2.1.2.1.(1) Part 4 applies to the following designated structures:

(a) a retaining wall exceeding 1 000 mm (3 ft 3 in) in exposed adjacent to …. (h) an outdoor pool that has a water depth greater than 3.5 m (11 ft 6 in) at any

point. (i) the supporting structure of a wind turbine generator attached to a building,

and (j) the supporting structure of a wind turbine generator that exceeds 16.6

metres above grade and is not attached to a building. (See Appendix Note)

Appendix Note: This requirement would apply to the foundation and the shaft (tower) that supports the wind turbine blades, or blades and generator.


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Gas Fired Generators, commonly known as emergency generators, are sources of alternative power in buildings. The proposed amendment would recognize the updated standard, including the use of natural gas as a fuel source for emergency generators. .

EXISTING BUILDING CODE PROVISION Existing Table 2.6.3.2. CAN/CSA-C282-M89 Emergency Electrical Power Supply for Buildings

PROPOSED BUILDING CODE AMENDMENT Revised Table 2.6.3.2. CAN/CSA-C282-M05 Emergency Electrical Power Supply for Buildings


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Active Solar Hot Water Systems use the sun’s energy to heat water. The proposed amendment would clarify that the standard for solar domestic hot water systems applies to packaged systems.

EXISTING BUILDING CODE PROVISION 7.2.10.13. Solar Domestic Hot Water (1) Equipment for solar heating of potable water shall conform to CAN/CSA-F379.1, "Solar Domestic Hot Water Systems (Liquid to Liquid Heat Transfer)". 7.6.1.15. Solar Domestic Hot Water Systems (1) Systems for solar heating of potable water shall be installed in conformance with CAN/CSA-F383, "Installation Code for Solar Domestic Hot Water Systems".

PROPOSED BUILDING CODE AMENDMENT 7.2.10.13. Solar Domestic Hot Water (1) Equipment, that is part of a packaged SDHW system for solar heating of potable water, shall conform to CAN/CSA-F379.1, "Solar Domestic Hot Water Systems (Liquid to Liquid Heat Transfer)". 7.6.1.15. Solar Domestic Hot Water Systems (1) Except as provided in Sentence (2) a system for solar heating of potable water shall be installed in accordance with good engineering practice. (2) Packaged SDHW systems for solar heating of potable water in residential occupancies shall be installed in conformance with CAN/CSA-F383, "Installation Code for Solar Domestic Hot Water Systems".


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Wastewater heat recovery systems reclaim heat energy from hot water that is typically lost in the plumbing drainage system. The proposed amendment removes pipe-size reduction and pipe bend limitations that would prevent pre-engineered wastewater heat recovery systems.

EXISTING BUILDING CODE PROVISION 7.2.4.3. One-Quarter Bends (1) A 1/4 bend of 4 in. size or less that has a centre-line radius that is less than the size of the pipe shall not be used to join two soil or waste pipes. 7.4.9.1. No Reduction in Size (1) No soil or waste pipe that is of minimum size required by this Code for the purpose for which it is installed shall be so connected as to drain to other drainage pipe of lesser size.

PROPOSED BUILDING CODE AMENDMENT 7.2.4.3. One-Quarter Bends (1) Except as provided in Sentence 3, a 1/4 bend of 4 in. size or less that has a centre-line radius that is less than the size of the pipe shall not be used to join two soil or waste pipes. (3) A ¼ bend that is part of the pre-engineered wastewater heat recovery system is permitted to have a centre-line radius that is less than the size of the pipe. 7.2.7.4. Copper Tube (4) Copper tube used in the potable water side of a pre-engineered waste water heat recovery system shall be type L tube.


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7.4.9.1. No Reduction in Size

(1) Except as permitted in Sentence 3, no soil or waste pipe that is of minimum size required by this Code for the purpose for which it is installed shall be so connected as to drain to other drainage pipe of lesser size. (3) A sanitary drainage pipe may be connected to a pre-engineered waste water heat recovery system that incorporates piping of a lesser size provided that it does not convey

(a) Sewage from a sanitary unit, or (b) Sewage that contains solids


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Rooftop Storm water retention can help achieve greater building energy efficiency by utilizing the reflective and cooling characteristics of water to naturally cool the building. It can also lead to the reduction of energy used for pumping water during storm water surges by storing the storm water on the rooftop for release into the municipal drainage system at a later time. The proposed amendment clarifies the treatment of specified rain loads arising from rooftop storm water management.

EXISTING BUILDING CODE PROVISION 4.1.7.3.(3) (3) Except as provided for in Sentence 4.1.7.1.(1) and except where a roof is intended to provide rain water retention, loads due to rain need not be considered to act simultaneously with loads due to snow.

PROPOSED BUILDING CODE AMENDMENT 4.1.7.3.(3) (3) Except as provided in Sentence 4.1.7.1.(1), loads due to rain need not be considered to act simultaneously with loads due to snow. (4) Where scuppers are provided and where the position, shape and deflection of the loaded surface make an accumulation of rainwater possible, the loads due to rain water shall be the lesser of either the one-day rainfall determined in accordance with Subsection 2.5.1., or a depth of rainwater equal to 30 mm above the level of the scuppers, applied over the horizontal projection of the surface and tributary areas.


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Storm water and Grey Water Use is the use of non-potable water for purposes where potable water may not be necessary, such as irrigation and for lavatories. The proposed amendment would permit the use of storm water or grey water in specific fixtures.

EXISTING BUILDING CODE PROVISION 7.1.6.3. Water Distribution Systems (2) Where a supply of potable water is unavailable or insufficient to supply water to a plumbing system, non- potable water may be used for the flushing of water closets, urinals or the priming of traps, and the piping conveying the non- potable water shall be installed in conformance with Section 7.7.

PROPOSED BUILDING CODE AMENDMENT 7.1.6.3. Water Distribution Systems (2) Where a supply of potable water is unavailable or insufficient to supply water to a plumbing system Storm water or greywater that is free of solids may be used for the flushing of water closets, urinals or the priming of traps , and the piping conveying the non- potable water shall be installed in conformance with Section 7.7.


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Storm water management can help achieve greater building energy efficiency by utilizing the reflective and cooling characteristics of water to naturally cool the building. It can also lead to the reduction of energy used for pumping water during storm water surges by storing the storm water on the rooftop for release into the municipal drainage system at a later time. The proposed amendment provides clarity in the treatment of hydraulic loads on roofs and paved surfaces.

EXISTING BUILDING CODE PROVISION None

PROPOSED BUILDING CODE AMENDMENT 1.1.3.2. Defined terms Flow control roof drain: means a roof drain that restricts the flow of storm water into the storm drainage system. 7.4.10.6. Hydraulic Loads from Roofs or Paved Surfaces (1) Except as provided in Sentence (2), the hydraulic load in litres from a roof or paved surface is the maximum 15 min rainfall determined in accordance with Subsection 2.5.1., multiplied by the sum of:

(a) the area in square metres of horizontal projection of the surface drained, and

(b) one-half the area in square metres of the largest adjoining vertical surface.

(2) Flow control roof drains may be installed provided:

(a) the maximum drain down time does not exceed 24 h,


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(b) the roof structure has been designed to carry the load of the stored water,

(c) one or more scuppers are installed so that the maximum depth of water on the roof cannot exceed 150 mm,

(d) they are located not more than 15 m from the edge of the roof, and not more than 30 m from adjacent drains, and

(e) there is at least one drain for each 900 sq m.

(3) Hydraulic loads in litres per second for flow control roof drains and restricted paved area drains shall be determined according to rain intensity-duration frequency curves as compiled by Environment Canada, using 25-year frequencies.


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AREAS FOR FURTHER EXPLORATION Increasing the energy efficiency of buildings can be achieved in numerous ways. The proposed changes to the Building Code to increase the energy efficiency of buildings set out in Areas 1 through 4 in this document is not an inclusive list. Motion sensor lighting and green roofs are examples of technologies that could be used to achieve greater energy efficiency in buildings. We would like to hear your views on these technologies and any other technologies that can achieve increased energy efficiency of buildings that could be consulted on at a later date and potentially included in the Building Code. We ask that you submit your comments by completing the Comment Form found on page 6 of this document. Motion Sensor Lighting Motion sensor lighting to control minimum lighting has been raised as a mechanism that could be used to achieve higher energy efficiency in buildings. The Building Code contains minimum lighting requirements (subsections 3.2.7. and 9.34.2.) and requirements for emergency lighting (subsections 3.2.7. and 9.3.4.3.). We would like to hear your views on the use of motion sensor lighting in public spaces to control minimum and emergency lighting. In providing your views, please consider the potential public safety implications that could result from the use of motion sensor lighting, particularly in situations of smoke caused by fire and where building occupants may not be familiar with building controls. Also consider possible standards that may exist for the use of motion sensor lighting in buildings. Green Roofs Green roofs are generally defined as a roof assembly on a building that includes widespread plant life. Green roofs have a range of environmental benefits, including storm water management, energy conservation, urban ecology and heat island effect reduction. The Building Code does not prohibit the use of green roofs; however, it also does not explicitly recognize their use. Given the environmental benefits of green roofs, we would like to hear any comments you may have on how green roofs could be used as alternative solutions (i.e., trade-offs or credits) for the proposed changes set out in this document.

Documents

Proposed Changes to Ontario’s Building Code to Increase ...Proposed Changes to Ontario’s Building Code to Increase the Energy Efficiency of Buildings Consultation Document, February