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SB-10 – THE ENVELOPE ULTIMATUM




Green Building Festival
12 October 2012
Energy Efficient
Enclosures & SB-10




            SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Why does it matter?
 • Codes demand it
 • Substantial portion of construction budget – 20% range
 • Integration with HVAC requires that the building envelope
   perform
 • Sustainable buildings often incorporate innovative assemblies
   and materials
 • Envelope failure can require costly repairs to re-establish the
   design intent
 • Envelopes are complex systems with shared responsibilities
   and are not typically commissioned




                                          SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Why does it matter?


12


10
                     Performance
                     Gap
 8


 6                         Mechanical
                           Envelope
                                                  Extract from NCBC 2010 Seminar “Successful
                                                       Exterior Enclosure Commissioning”
 4


 2


 0
         1       2




                                      SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Why does it matter?

$90,000.00

$80,000.00

$70,000.00

$60,000.00

$50,000.00

$40,000.00

$30,000.00

$20,000.00

$10,000.00

       $-
             1    2    3      4   5   6      7     8     9   10


                 Code Building        based on 3%
                                      annual inflation
                 25% Better           over 10 years




                                                                  SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Enclosure Failure
Energy & Durability




                      SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Enclosure Failure
Indoor Environmental Quality




                               SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Energy Code Trends




                     SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Achieving SB-10




           SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
OBC and SB-10
Design Considerations

       • Meet ASHRAE 90.1-2010 + SB-10 Envelope
         Values (i.e. ASHRAE 189)
            Prescriptive
       • Exceed ASHRAE 90.1-2010 by minimum 5%
            Modeled
       • Exceed MNECB (1997) by minimum 25%
            Modeled
       • 40% maximum fenestration-to-wall ratio


      LEED NC 2009 prerequisite equivalent
                                      SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
SB-10 Envelope Values
    Zone Comparison

                                                                    Zone
                                   5                                  6                                 7
                    Max U-value        Min. R-Value     Max U-value     Min. R-Value     Max U-value        Min. R-Value
                          2                                   2                                2
Assembly             (w/m K)                             (w/m K)                          (w/m K)
Roof                        0.22       R-25 ci                  0.18    R-30 ci                  0.16       R-35 ci
Mass Walls                  0.45       R-13.3 ci                0.40    R-15.2 ci                0.34       R-20 ci
Metal Building              0.30       R-13 + R-13 ci           0.30    R-13 + R-13 ci           0.30       R-13 + R-13 ci
Steel Framed                0.31       R-13 + R-10 ci           0.31    R-13 + R-13 ci           0.31       R-13 + R-10 ci
Metal framed                1.99       0.35 SHGC                1.99    0.40 SHGC                1.70       0.45 SHGC
fenestration (max
40%)




                                                                        SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Achieving SB-10
Solid Opaque Walls




                     SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Achieving SB-10
Fenestration




                  SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
OBC and SB-10
Design Considerations

       • Meet ASHRAE 90.1-2010 + SB-10 Envelope
         Values (i.e. ASHRAE 189)
            Prescriptive
       • Exceed ASHRAE 90.1-2010 by minimum 5%
            Modeled
       • Exceed MNECB (1997) by minimum 25%
            Modeled
       • 40% maximum fenestration-to-wall ratio


      LEED NC 2009 prerequisite equivalent
                                      SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Accurate Performance
     Prediction
 (Energy Modeling that Works)




                     SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Energy Modeling That Works




                   SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Energy Modeling That Works




                   SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
High Performance
   Enclosures




           SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
High-Performance Enclosures
Building-Integrated PV




                         SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
High-Performance Enclosures
External Shading




                   SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
High-Performance Enclosures
Vegetated Green Walls




                        SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Analyzing Systems
Fenestration




                                               © Kawneer.com




                    SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Delivering Quality
Enclosure Commissioning




                          SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Verifying Performance
Enclosure Commissioning




                          SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Scott R Armstrong         Dipl. Arch. Tech., A.Sc.T., LEED AP BD+C


Manager, Building Science & Sustainability
Associate
MMM Group Limited
100 Commerce Valley Drive West
Thornhill ON L3T 0A1

ArmstrongS@mmm.ca | m: 647.923.9053 | t: 905.882.4211 xt. 6864 | www.mmm.ca


                                                          SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
Communities
                                                             Transportation
                                                             Buildings
                                                             Infrastructure


PROJECT EXPERTISE
& RESOURCES




               Green Buildings &
                    LEED


               Building Science
                 Consulting




                                   SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012

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SB-10: The Envelope Ultimatum

  • 1. SB-10 – THE ENVELOPE ULTIMATUM Green Building Festival 12 October 2012
  • 2. Energy Efficient Enclosures & SB-10 SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 3. Why does it matter? • Codes demand it • Substantial portion of construction budget – 20% range • Integration with HVAC requires that the building envelope perform • Sustainable buildings often incorporate innovative assemblies and materials • Envelope failure can require costly repairs to re-establish the design intent • Envelopes are complex systems with shared responsibilities and are not typically commissioned SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 4. Why does it matter? 12 10 Performance Gap 8 6 Mechanical Envelope Extract from NCBC 2010 Seminar “Successful Exterior Enclosure Commissioning” 4 2 0 1 2 SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 5. Why does it matter? $90,000.00 $80,000.00 $70,000.00 $60,000.00 $50,000.00 $40,000.00 $30,000.00 $20,000.00 $10,000.00 $- 1 2 3 4 5 6 7 8 9 10 Code Building based on 3% annual inflation 25% Better over 10 years SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 6. Enclosure Failure Energy & Durability SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 7. Enclosure Failure Indoor Environmental Quality SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 8. Energy Code Trends SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 9. Achieving SB-10 SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 10. OBC and SB-10 Design Considerations • Meet ASHRAE 90.1-2010 + SB-10 Envelope Values (i.e. ASHRAE 189) Prescriptive • Exceed ASHRAE 90.1-2010 by minimum 5% Modeled • Exceed MNECB (1997) by minimum 25% Modeled • 40% maximum fenestration-to-wall ratio LEED NC 2009 prerequisite equivalent SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 11. SB-10 Envelope Values Zone Comparison Zone 5 6 7 Max U-value Min. R-Value Max U-value Min. R-Value Max U-value Min. R-Value 2 2 2 Assembly (w/m K) (w/m K) (w/m K) Roof 0.22 R-25 ci 0.18 R-30 ci 0.16 R-35 ci Mass Walls 0.45 R-13.3 ci 0.40 R-15.2 ci 0.34 R-20 ci Metal Building 0.30 R-13 + R-13 ci 0.30 R-13 + R-13 ci 0.30 R-13 + R-13 ci Steel Framed 0.31 R-13 + R-10 ci 0.31 R-13 + R-13 ci 0.31 R-13 + R-10 ci Metal framed 1.99 0.35 SHGC 1.99 0.40 SHGC 1.70 0.45 SHGC fenestration (max 40%) SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 12. Achieving SB-10 Solid Opaque Walls SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 13. Achieving SB-10 Fenestration SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 14. OBC and SB-10 Design Considerations • Meet ASHRAE 90.1-2010 + SB-10 Envelope Values (i.e. ASHRAE 189) Prescriptive • Exceed ASHRAE 90.1-2010 by minimum 5% Modeled • Exceed MNECB (1997) by minimum 25% Modeled • 40% maximum fenestration-to-wall ratio LEED NC 2009 prerequisite equivalent SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 15. Accurate Performance Prediction (Energy Modeling that Works) SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 16. Energy Modeling That Works SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 17. Energy Modeling That Works SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 18. High Performance Enclosures SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 19. High-Performance Enclosures Building-Integrated PV SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 20. High-Performance Enclosures External Shading SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 21. High-Performance Enclosures Vegetated Green Walls SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 22. Analyzing Systems Fenestration © Kawneer.com SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 23. Delivering Quality Enclosure Commissioning SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 24. Verifying Performance Enclosure Commissioning SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 25. Scott R Armstrong Dipl. Arch. Tech., A.Sc.T., LEED AP BD+C Manager, Building Science & Sustainability Associate MMM Group Limited 100 Commerce Valley Drive West Thornhill ON L3T 0A1 ArmstrongS@mmm.ca | m: 647.923.9053 | t: 905.882.4211 xt. 6864 | www.mmm.ca SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012
  • 26. Communities Transportation Buildings Infrastructure PROJECT EXPERTISE & RESOURCES Green Buildings & LEED Building Science Consulting SB-10 – THE ENVELOPE ULTIMATUM | 12 OCT 2012