Your SlideShare is downloading. ×
Bob Bach: Energy Efficiency in the Ontario Building Code
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Bob Bach: Energy Efficiency in the Ontario Building Code

2,841

Published on

SBC Board Member Bob Bach presents the Energy Efficiency changes in the 2012 Ontario Building Code.

SBC Board Member Bob Bach presents the Energy Efficiency changes in the 2012 Ontario Building Code.

Published in: Technology, Business
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
2,841
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
71
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Ontario Building Code Energy Efficiency in Buildings Presentation to theSustainable Buildings Canada Breakfast Meeting February 22, 2012 H. R.(BOB) BACH SUSTAINABLE BUILDINGS CANADA
  • 2. OVERVIEW• Where the Building Code was in 2006• Where the Building Code is in 2012• Part 3 Options & Application Issues• Impact on Overall Energy Utilization Intensity• Where Will We Go for 2017 SUSTAINABLE BUILDINGS CANADA
  • 3. Current Requirements 2006 2007 2008 2009 2010 2011 2012 Code2006 Code Amendment: Energy efficiencyEnergy efficiency  for 2006 Code Prescriptive : houses must houses and bldgs. Energy compliance meet2008 signpost to extend paths for Code EnerGuide80 or efficiency  basement insulation in EnerGuide80 Amendment: equivalent; for houses: houses (SB12) Alternative lg. bldgs. must basement2012 signposts for: effective 2012 compliance paths meet MNECB+25% insulation houses - EnerGuide80; to meet 2012 or equivalent lg. bldgs. - MNECB+25% requirements for lg. bldgs. (SB10 update)
  • 4. Part 3 Buildings: Background SUSTAINABLE BUILDINGS CANADA
  • 5. OBC 2006, Part 1212.2.1.1. Energy Efficiency Design (1) Sentences (2) to (5) apply to construction for which a permit has been applied for before January 1, 2012. (2) Except as provided in Sentences (3) and (5) and permitted in Sentence (4), the energy efficiency of all buildings shall be designed to good engineering practice such as described in, (a) the ANSI/ASHRAE/IESNA 90.1, “Energy Efficient Design of New Buildings Except Lowrise Residential Buildings” and Supplementary Standard SB-10, or (b) the Model National Energy Code for Buildings and Supplementary Standard SB-10. (4) The energy efficiency of a building or part of a building may conform to the design requirements of Subsection 12.3.4. if the building or part of the building, (a) is within the scope of Part 9, (b) does not contain a residential occupancy, (c) does not use electric space heating, and (d) is intended for occupancy on a continuing basis during the winter months. (5) Sentence (1) does not apply to, (a) farm buildings, and (b) buildings intended primarily for manufacturing or commercial or industrial processing.
  • 6. OBC 2006, Part 1212.2.1.2. Energy Efficiency Design After December 31, 2011 (1) Sentences (2) to (5) apply to construction for which a permit has been applied for after December 31, 2011. (2)Except as provided in Sentences (3) and (5), the energy efficiency of all buildings shall be designed to exceed by not less than 25% the energy efficiency levels attained by conforming to the Model National Energy Code for Buildings. (3) The energy efficiency of a building or part of a building of residential occupancy that is within the scope of Part 9 and is intended for occupancy on a continuing basis during the winter months shall meet the performance level that is equal to a rating of 80 or more when evaluated in accordance with NRCan “EnerGuide for New Houses: Administrative and Technical Procedures”. (5) Sentence (1) does not apply to, (a) farm buildings, and (b) buildings intended primarily for manufacturing or commercial or industrial processing.
  • 7. Supplementary Standard SB-10• Provides all energy efficiency requirements for Part 3 and Part 9 non-residential buildings• Latest Edition: – Issued May 16, 2011; Revised June 27, 2011; Came into force July 1, 2011• Division 1 replaces Article 12.1.1.2• Division 2 applied before January 1, 2012• Division 3 applies after December 31, 2011• Division 4 provides an simplified prescriptive option for Part 9 non-residential buildings• Available at: http://www.mah.gov.on.ca/AssetFactory.aspx?did=9227
  • 8. Research Undertaken for OBC 2006 Energy Savings By Energy Code Over  MNECB OBC  Floor Area,  Building Archetype  Building Type 2 Hybrid: Envelope ‐  Part m Features ASHRAE  ASHRAE  90.1‐1989; Balance  90.1‐1989 90.1‐2004 ‐ 90.1‐2004 High Rise Office 3 13,380 10.4% 5.3% 16.3% HVAC ‐ VAV Rooftop VAV c/w Low Rise Office 3 2,974 12.1% 15.9% 19.4% hydronic reheat Water loop HP, central High Rise MURB 3 13,611 12.7% ‐1.5% 16.0% corridor vent.Low Rise MURB 3 3,900 10.6% ‐0.5% 12.9% Gas hydronic & PACOffice 9 485 N/A N/A 16.9% Rooftop Gas/ElectricRetail 9 485 N/A N/A 26.2% Rooftop Gas/Electric
  • 9. Overview of SB-10 Effective up to December 31, 2011 All Administrative/Climate Zones Component/System MNECB 1997 ASHRAE 90.1-2004Building Envelope Supplementary Standard SB-10 Supplementary Standard SB-10 (ASHRAE 90.1-1989) (ASHRAE 90.1-1989)Lighting Supplementary Standard SB-10 (ASHRAE 90.1-2004-9) ASHRAE 90.1-2004 Section 9Heating, Ventilating & Air Equipment - ASHRAE 90.1-2004-6;Conditioning Systems - MNECB 1997 Part 5 ASHRAE 90.1-2004 Section 6Service Water Heating Equipment - ASHRAE 90.1-2004-7; Systems - MNECB 1997 Part 6 ASHRAE 90.1-2004 Section 7Electrical Power MNECB 1997 Part 7 ASHRAE 90.1-2004 Section 10 EE4-OBC SB-10 software (fromPerformance Path NRCan) ASHRAE 90.1-2004 Section 11
  • 10. Software for OBC 2006• Building Envelope Tradeoff – MNECB – ENVSTD 23 or 24 – ASHRAE 90.1-2004 - ENVSTD 23 or 24• Performance Path – MNECB – EE4-OBC/SB10 (includes compliance “front end”) – ASHRAE 90.1-2004 – none: specification only provided
  • 11. Research Undertaken for OBC 2011 Energy Modelling Data for Archetype Buildings Options to Meet Energy Efficiency for Part 3 Buildings 90.1‐2010 with  SB‐10  Exceed  (enhanced  OBC  MNECB by  ASHRAE 90.1‐ Envelope from  NECB (public  Part Building Type 25% 2010 ASHRAE 189.1) review draft) 3 Office 3 MURB 3 Retail 3 Education 3 Wholesale Trade Average 25% 21% 26% 26%
  • 12. Overview of SB-10 Effective January 1,2012 All Administrative/Climate Zones Component/System MNECB Plus 25% ASHRAE 90.1-2010 Plus 5% ASHRAE 90.1-2010 Hybrid NECB 2011 Supplementary Std SB-10Building Envelope MNECB Part 3+ ASHRAE 90.1-2010 Sect 5+ (ASHRAE 189.1-2009) NECB 2012 Part 3Lighting MNECB Part 4+ ASHRAE 90.1-2010 Sect 9 + ASHRAE 90.1-2010 Sect 9 NECB 2012 Part 4Heating, Ventilating &Air Conditioning MNECB Part 5+ ASHRAE 90.1-2010 Sect 6+ ASHRAE 90.1-2010 Sect 6 NECB 2012 Part 5Service Water Heating MNECB Part 6+ ASHRAE 90.1-2010 Sect 7+ ASHRAE 90.1-2010 Sect 7 NECB 2012 Part 6Electrical Power MNECB Part 7+ ASHRAE 90.1-2010 Sect 8+ ASHRAE 90.1-2010 Sect 8 NECB 2012 Part 7Performance Path MNECB Part 8 ASHRAE 90.1-2010 Sect 11 ASHRAE 90.1-2010 Sect 11 NECB 2012 Part 8
  • 13. Software for SB-10 (2012)• Building Envelope Tradeoff – MNECB + 25% – BILDTRAD (not suitable for use) – ASHRAE 90.1-2010 + 5% – none available – ASHRAE 90.1-2010 Hybrid – under development• Performance Path – MNECB – EE4-Code (must demonstrate EE level 25% better than the MNECB reference building) – ASHRAE 90.1-2010 – none: acceptable software specification only is provided; two simulations required – NECB – NRCan has a program under development to (likely) be called CanQuest-OBC – availability is unknown
  • 14. SB-10 Division 4 – Part 9 Non- Residential Buildings(2012) Zone 1 Zone 2 Less Than 5000 Degree‐Days 5000 or More Degree‐Days Opaque Elements Assembly Insulation Assembly Insulation Max. U‐Value(1) Min. RSI‐Value Max. U‐Value(1) Min. RSI‐ValueRoofs Without Attic Space‐Insulation Above Deck  U‐0.181  5.28 ci  U‐0.158  6.16 ci With Attic Space and Other  U‐0.119 8.8 U‐0.096 10.56Walls, Above Grade U‐0.312 2.28 + 1.76 ci U‐0.312 2.28 + 1.76 ciWall, Below Grade C‐0.522 1.76 ci C‐0.522 1.76 ciExposed Floors, Lightweight framing U‐0.181 6.69 U‐0.181 6.69 Mass  U‐0.323 2.57 ci U‐0.244 3.52 ciSlab‐On‐Grade Floors (perimeter+below slab) 2.64 for 600 mm  Unheated 2.64 for 600 mm + 0.88 ci below 2.64 for 900 mm  3.52 for 900 mm  Heated  + 0.88 ci below + 0.88 ci below Assembly  Assembly  Assembly  Assembly  Fenestration Max. U‐Value Max. SHGC Max. U‐Value Max. SHGCVertical Fenestration, 0% ‐ 40% of Wall U‐1.987 0.4 U‐1.703 0.45Skylight with Curb, % of Roof 0% to 5% U‐3.917 0.49 U‐3.917 0.50Skylight without curb, % of Roof 0% to 5% U‐2.555 0.46 U‐2.555 0.46
  • 15. Gains in Energy Utilization Intensity Floorspace & Occupancy  Code, Standard, or Program Type Weighted Average  Typical EUI, 2 Performance Increment ekWh/ft /yr MNECB 0% (baseline) 25.0 Ontario Building Code  OBC 2006 (above MNECB) 17% 20.8 OBC 2011 (above MNECB) 25% 18.8 Toronto Green Standard TGS Tier 1 (above MNECB) 25% 18.8 TGS Tier 1 (above MNECB) 35% 16.3 Current Incentive Program ‐ HPNC/BBP‐NC Tier 1 (maximum performance  25% 15.6 level above OBC 2006  within tier) Tier 2 (maximum performance  50% 10.4 level above OBC 2006 within tier) Tier 3 (minimum performance  50%+ < 10.4 level above OBC 2006 within tier) Proposed Incentive Program ‐ HPNC/BBP‐NC Tier 1 (maximum performance  25% 14.1 level above OBC 2012  within tier) Tier 2 (maximum performance  50% 9.4 level above OBC 2012 within tier) Tier 3 (minimum performance  50%+ < 9.4 level above OBC 2012 within tier)
  • 16. Future Considerations for EnergyEfficiency − HPNC/BBP-NC Results Total  Greater  Number of  Eastern  Toronto  Southwest  Northern  Region Buildings Ontario Area Toronto Ontario Ontario Postal Code Zone   Ontario K L M N P College/University 30 7 9 7 5 2 Government 28 2 14 6 5 1 Healthcare 11 2 2 2 1 4 Hotel/Motel 1 1 0 0 0 0 Multi‐Residential 108 3 22 81 2 0 Office 68 5 22 33 8 0 Other Commercial 13 4 7 0 1 1 Recreation 23 6 9 7 1 0 Retail 60 7 18 33 2 0 School 42 12 19 2 6 3 Warehouse 5 1 4 0 0 0 Other Industrial 13 0 5 7 0 1 Transportation 1 0 1 0 0 0 Total   403 50 132 178 31 12
  • 17. Future Considerations for EnergyEfficiency − HPNC/BBP-NC Results Total  Number of  Benchmark  2 Building Type Buildings Efficiency Level Size Range, ft 1 2 3 Min Max College/University 30 17% 61% 22%        6,000       300,000 Government 28 17% 50% 33%      10,000       300,000 Healthcare 11 40% 50% 10%      45,000       970,000 Hotel/Motel 1 100% 0% 0% N/A N/A Multi‐Residential 108 41% 41% 17%      37,000       280,000 Office 68 16% 70% 14%        5,300       600,000 Other Commercial 13 38% 31% 25%        5,400       364,000 Recreation 23 19% 75% 6%        7,000       185,000 Retail 60 61% 32% 7%      25,000       417,000 School 42 10% 56% 34%      15,000       209,000 Warehouse 5 50% 50% 0%   125,000       508,000 Other Industrial 13 33% 67% 0%      20,000       375,000 Transportation 1 0% 100% 0%       227,664 Total   403
  • 18. Next Edition of the Building Code (2012?)• Details about the date of issue have not been finalized, or at least made public. Expect mid to late 2012.• Energy Efficiency requirements will remain unchanged in the near term, with the exception of a possible change from MNECB +25% to NECB.• There may be other interim Part 12 changes during the code cycle.
  • 19. Subsequent Edition of the Building Code (2017?)• Details have not yet been finalized, including the date of issue.• Expect incremental gain in efficiency to be at least 12 to 15% - this will be stated in OBC 2012.• Anticipate adoption of ASHRAE 90.1-2013 or -2016, possibly a hybrid.• Plans are being formulated by the CCBFC to update the NECB. This may be adopted depending on timing and acceptability by Ontario.
  • 20. Compliance Issues• Compliance forms for building permit applications for the Prescriptive Path of the ASHRAE 90.1-2010 Hybrid have been released by MMAH. How many municipalities will adopt these is unknown.• Currently municipal building departments do not have the capability to review Performance Path applications. This is only just beginning to change, but very slowly.• When the NECB is adopted, new compliance forms will likely be prepared.
  • 21. Questions? SUSTAINABLE BUILDINGS CANADA
  • 22. bbach@energyprofiles.com SUSTAINABLE BUILDINGS CANADA

×