0
Title-24 Building Energy Standards


                          Energy Code Works, Inc.


   Mark Madison
   CEPE, CEA, AEE...
Beyond Title-24

Why Beyond Title-24?
How do you get beyond Title-24?




www.energycode.com                     Energy ...
Beyond Title-24

Why Beyond Title-24?
        Incentives and requirements (carrots & sticks)
             Carrots:
    ...
Beyond Title-24

Why Beyond Title-24?
        Incentives and requirements (carrots & sticks)
             Carrots:
    ...
Beyond Title-24

Why Beyond Title-24?
        Incentives and requirements (carrots & sticks)
             Carrots:
    ...
Beyond Title-24

Why Beyond Title-24?
        Incentives and requirements (carrots & sticks)
             Carrots:
    ...
Beyond Title-24

Why Beyond Title-24?
        Incentives and requirements (carrots & sticks)
             Carrots:
    ...
Beyond Title-24

Why Beyond Title-24?
        Incentives and requirements (carrots & sticks)
             Sticks
      ...
Beyond Title-24

Why Beyond Title-24?
        Incentives and requirements (carrots & sticks)
             Sticks
      ...
Beyond Title-24

 How do you get beyond Title-24?
        Challenges:
        New 2008 Title-24 Building Energy Standar...
Beyond Title-24

 How do you get beyond Title-24?
        Opportunities:
        35% better than 2005 Title-24 has been...
Scope of this Class



                     1   Changes to Envelope Requirements


                     2   Changes to HVA...
Scope of this Class



                     5   Beyond Title-24: Envelope


                     6   Beyond Title-24: HVAC...
2008 Building Energy Standards

Effective date: January 1, 2010

        Some cities and counties will allow you to subm...
2008 Building Energy Standards

Effective date: January 1, 2010




www.energycode.com                 Energy Code Works,...
2008 Building Energy Standards
 Future of Title-24




 www.energycode.com                Energy Code Works, Inc.
2008 Building Energy Standards
 Future of Title-24




 www.energycode.com                Energy Code Works, Inc.
2008 Building Energy Standards
 Future of Title-24




 www.energycode.com                Energy Code Works, Inc.
2008 Building Energy Standards
 Future of Title-24




 www.energycode.com                Energy Code Works, Inc.
Scope of this Class



                     1   Changes to Envelope Requirements


                     2   Changes to HVA...
Compliance Paths

                     Two compliance paths available




                      Prescriptive     Performan...
Compliance Paths

               Two compliance paths available


                             Mandatory
                 ...
Compliance Paths

                     Advantages/Disadvantages


                               Mandatory
               ...
Building Envelope


                        Walls, floors, ceiling assemblies




                        Windows, glass d...
Building Envelope

                          Current 2005 Prescriptive
                          Requirements




www.ener...
Building Envelope

                         New 2008 Prescriptive
                         Requirements




www.energycode...
Building Envelope

                              New 2008 Prescriptive
                              Requirements



     ...
Building Envelope

                         Current 2005 Prescriptive
                         Requirements




www.energy...
Building Envelope

                         New 2008 Prescriptive
                         Requirements




www.energycode...
Building Envelope

                             Windows, glass doors, skylights




    Two allowable methods for determin...
Building Envelope

                         Windows, glass doors, skylights




www.energycode.com                        ...
Building Envelope




www.energycode.com                       www.energycode.com
Building Envelope




www.energycode.com                       www.energycode.com
Building Envelope

                         Windows, glass doors, skylights




www.energycode.com                        ...
Building Envelope

                            Windows, glass doors, skylights



                     Default tables 116-...
Building Envelope

                          Windows, glass doors, skylights



                        2008 Package D



...
Building Envelope

                            Windows, glass doors, skylights



                     Package D vs. Defau...
Building Envelope

                            Windows, glass doors, skylights



                     Package D vs. Defau...
Building Envelope

                         Windows, glass doors, skylights



                         Package D vs. NFRC...
Building Envelope

                         Windows, glass doors, skylights



                         Bottom Line:

    ...
Building Envelope

                         When required, where required,
                         testing, certification...
Building Envelope

                         When required, where required,
                         testing, certification...
Building Envelope

                                When required, where required,
                                testing,...
Scope of this Class



                     1   Changes to Envelope Requirements


                     2   Changes to HVA...
HVAC


                     Minimum AFUE, SEER, EER

                     SEER vs EER


                     Prescriptive ...
HVAC
                     Appliance Efficiency Regulations
                     set HVAC efficiency minimums in
          ...
HVAC
                     Prescriptive Packages refer to
                     Appliance Efficiency Regulations
           ...
HVAC

                     Minimum AFUE, SEER, EER

                     SEER vs EER




www.energycode.com               ...
HVAC

                      Minimum AFUE, SEER, EER

                      SEER vs EER



                     Questions:
...
HVAC

                      Minimum AFUE, SEER, EER

                      SEER vs EER



                     EER is meas...
HVAC

                      Minimum AFUE, SEER, EER

                      SEER vs EER

                     Why this matt...
HVAC

                      Minimum AFUE, SEER, EER

                      SEER vs EER

                     Why this matt...
HVAC

                      Minimum AFUE, SEER, EER

                      SEER vs EER



                     Bottom Line...
HVAC

                     Prescriptive requirement
                     No prescriptive alternatives
                    ...
HVAC

                         Prescriptive requirement
                         No prescriptive alternatives
            ...
HVAC

                        Prescriptive requirement
                        No prescriptive alternatives
              ...
HVAC

                              Prescriptive requirement
                              No prescriptive alternatives
  ...
HVAC

                            Refrigerant Charge Measurement
                            Cooling Coil Airflow
        ...
HVAC

                            Refrigerant Charge Measurement
                            Cooling Coil Airflow
        ...
HVAC

                     Refrigerant Charge Measurement
                     Cooling Coil Airflow
                     F...
HVAC

                     Refrigerant Charge Measurement
                     Cooling Coil Airflow
                     F...
HVAC

                           Refrigerant Charge Measurement
                           Cooling Coil Airflow
          ...
HVAC

                               Refrigerant Charge Measurement
                               Cooling Coil Airflow
  ...
HVAC

                                       Refrigerant Charge Measurement
                                       Cooling...
Scope of this Class



                     1   Changes to Envelope Requirements


                     2   Changes to HVA...
TDV

                         4        Impact of Time Dependant Valuation (TDV)

      New for 2008 Residential Standards
...
TDV

                     4       Impact of Time Dependant Valuation (TDV)


   Example:
   Single family residence
   180...
TDV

                     4   Impact of Time Dependant Valuation (TDV)


   Example:
   SFR residence
   1800 sq. ft.
   P...
TDV

                     4   Impact of Time Dependant Valuation (TDV)


   Example:
   SFR residence
   1800 sq. ft.
   P...
TDV

                     4   Impact of Time Dependant Valuation (TDV)


   Example:
   SFR residence
   1800 sq. ft.
   P...
TDV

                     4      Impact of Time Dependant Valuation (TDV)



      Strategies for TDV

      Orientation i...
TDV

                     4      Impact of Time Dependant Valuation (TDV)



      Bottom Line for 2008

      Building de...
Title-24 Building Energy Standards


                  Energy Code Works, Inc.



          Break
Scope of this Class



                     5   Beyond Title-24: Envelope


                     6   Beyond Title-24: HVAC...
Compliance Paths

                     Two compliance paths available




                      Prescriptive     Performan...
Building Envelope

                         New 2008 Prescriptive
                         Requirements




www.energycode...
Building Envelope

                            2008 Upgrade Options




                Opaque Options for credit:
       ...
Building Envelope

                            2008 Upgrade Options




                Superbatt insulation
             ...
Building Envelope

                          2008 Upgrade Options




  Radiant Barrier benefits:
  Reduces attic temperat...
Building Envelope

                                   2008 Upgrade Options




House Wrap:
Reduces building envelope air l...
Building Envelope

                         2008 Upgrade Options




www.energycode.com                              www.e...
Building Envelope

                            2008 Upgrade Options



                     Default tables 116-a & 116-b

...
Building Envelope

                         2008 Upgrade Options



                         Package D vs. NFRC labels



...
Building Envelope

                         2008 Upgrade Options




www.energycode.com                              www.e...
Building Envelope

                         2008 Upgrade Options



                         Glazing Strategies for Beyond...
Building Envelope

                           5   Beyond Title-24: Envelope Results




Package D
Results:
               ...
Building Envelope

                             5   Beyond Title-24: Envelope Results



       Envelope Improvements
    ...
Building Envelope

                             5   Beyond Title-24: Envelope Results


Envelope
Improvements
Results:

Su...
Scope of this Class



                     5   Beyond Title-24: Envelope


                     6   Beyond Title-24: HVAC...
HVAC Upgrades Beyond Title-24


                     Minimum AFUE, SEER, EER

                     SEER vs EER


         ...
HVAC Beyond Title-24
                           Prescriptive Packages refer to
                           Appliance Effici...
HVAC Beyond Title-24
                           Appliance Efficiency Regulations
                           set HVAC effic...
HVAC Beyond Title-24

                                HVAC Strategies




                       HVAC Strategies for Beyon...
HVAC Beyond Title-24

                                HVAC Strategies



HVAC Zoning

Living & Sleeping Zones




   www.e...
HVAC

                            HVAC Strategies




 Duct Location

 Within Conditioned Space

 Buried ducts

 Both requ...
HVAC Beyond Title-24

                           Prescriptive requirement
                           No prescriptive alter...
HVAC Beyond Title-24

                            Refrigerant Charge Measurement
                            Cooling Coil ...
HVAC Beyond Title-24

                            6      Beyond Title-24: HVAC


                        5
               ...
HVAC Beyond Title-24

                             6   Beyond Title-24: HVAC


                         5
HVAC Improvement...
Building Envelope

                             5   Beyond Title-24: Envelope Results



       Envelope Improvements
    ...
HVAC Beyond Title-24

                             6       Beyond Title-24: HVAC


                         5
            ...
Scope of this Class



                     5   Beyond Title-24: Envelope


                     6   Beyond Title-24: HVAC...
HERS Measures



            Duct Sealing    •Sealed and HERS verified less than 6% supply fan flow
                      ...
HERS Measures



                CID       • NEW Charge Indicator Device Credit, not yet available



                    ...
HERS Measures


            Evap Cooled      • NEW Improves EER, water use limits & duct sealing, air flow, and
          ...
HERS Measures
                             HERS Measures most
                             commonly specified for 2008:

 ...
Scope of this Class

                      7       Beyond Title-24: HERS Measures




                     HERS credits as...
Scope of this Class

                        7   Beyond Title-24: HERS Measures




HERS credits
results:




  www.energy...
Scope of this Class

                      7       Beyond Title-24: HERS Measures




                     HERS credits le...
Building Envelope

                             5   Beyond Title-24: Envelope Results


Envelope
Improvements
Results:

Su...
Beyond Title-24

                      7       Beyond Title-24: HERS Measures




                     Resistance to HERS ...
Beyond Title-24

                         7       Beyond Title-24: HERS Measures


             Resistance to HERS measure...
Beyond Title-24

                                 7        Beyond Title-24: HERS Measures


Resistance to HERS measures:

...
Beyond Title-24
                               7       Beyond Title-24: HERS Measures



Resistance to HERS measures:

Duc...
Beyond Title-24

                          7           Beyond Title-24: HERS Measures


  Resistance to HERS measures:
  I...
Beyond Title-24
                             7     Beyond Title-24: HERS Measures



 North American Insulation
 Manufactu...
Beyond Title-24
                                      7   Beyond Title-24: HERS Measures


North American Insulation
Manuf...
Beyond Title-24
                            7      Beyond Title-24: HERS Measures


                 Bottom line
         ...
Compliance Forms
                   CF-6R bottom line:

                                CF-6R forms a major part of Title-...
Compliance Forms
                                      Certificate of Compliance (CF-1R)
                                 ...
Compliance Forms
                                      Certificate of Compliance (CF-1R)
                                 ...
Compliance Forms
                                       Certificate of Compliance (CF-1R)
                                ...
Compliance Forms
                       Registration

                                      New concept and new requiremen...
Compliance Forms
                       Registration
                                  Implications:

                    ...
Preparation for 1/1/2009



                     1           Energy Consultants


           Download Standards, Manual, A...
Preparation for 1/1/2009



                     2            Architects/Designers


           Set up drawing files to ac...
Preparation for 1/1/2009

                        3                  HVAC Contractors

           Be prepared to perform r...
Preparation for 1/1/2009
                         4                     Building Officials


Download Standards, Manual, A...
Energy Code Works, Inc.


Mark Madison
CEPE, CEA, AEE, HERS Rater,
GreenPoint Rater, ResNet Rater, Member CABEC, CHEERS
Upcoming SlideShare
Loading in...5
×

Beyond T 24

1,288

Published on

uploaded 10-28-09

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

  • Be the first to like this

No Downloads
Views
Total Views
1,288
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
52
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Transcript of "Beyond T 24"

  1. 1. Title-24 Building Energy Standards Energy Code Works, Inc. Mark Madison CEPE, CEA, AEE, HERS Rater, GreenPoint Rater, ResNet Rater, Member CABEC, CHEERS
  2. 2. Beyond Title-24 Why Beyond Title-24? How do you get beyond Title-24? www.energycode.com Energy Code Works, Inc.
  3. 3. Beyond Title-24 Why Beyond Title-24?  Incentives and requirements (carrots & sticks)  Carrots:  Utility incentive programs  PV incentives (NSHP)  Energy-Star  LEED  Sticks  Cities requiring better than Title-24 compliance  Energy efficient mortgages  Self-motivated designers/builders  Title-24 energy code = just barely legal www.energycode.com Energy Code Works, Inc.
  4. 4. Beyond Title-24 Why Beyond Title-24?  Incentives and requirements (carrots & sticks)  Carrots:  Utility incentive programs  PV incentives (NSHP)  Energy-Star  LEED www.energycode.com Energy Code Works, Inc.
  5. 5. Beyond Title-24 Why Beyond Title-24?  Incentives and requirements (carrots & sticks)  Carrots:  Utility incentive programs  PV incentives (NSHP)  Energy-Star  LEED www.energycode.com Energy Code Works, Inc.
  6. 6. Beyond Title-24 Why Beyond Title-24?  Incentives and requirements (carrots & sticks)  Carrots:  Utility incentive programs  PV incentives (NSHP)  Energy-Star  LEED www.energycode.com Energy Code Works, Inc.
  7. 7. Beyond Title-24 Why Beyond Title-24?  Incentives and requirements (carrots & sticks)  Carrots:  Utility incentive programs  PV incentives (NSHP)  Energy-Star  LEED www.energycode.com Energy Code Works, Inc.
  8. 8. Beyond Title-24 Why Beyond Title-24?  Incentives and requirements (carrots & sticks)  Sticks  Cities requiring better than Title-24 compliance  Energy efficient mortgages www.energycode.com Energy Code Works, Inc.
  9. 9. Beyond Title-24 Why Beyond Title-24?  Incentives and requirements (carrots & sticks)  Sticks  Cities requiring better than Title-24 compliance  Energy efficient mortgages www.energycode.com Energy Code Works, Inc.
  10. 10. Beyond Title-24  How do you get beyond Title-24?  Challenges:  New 2008 Title-24 Building Energy Standards 15-22% more restrictive, tougher than current 2005 energy code.  Many energy credits in 2005 standards are now baseline for 2008 energy code  New 2008 energy code introduces additional layers of compliance criteria, forms, paperwork www.energycode.com Energy Code Works, Inc.
  11. 11. Beyond Title-24  How do you get beyond Title-24?  Opportunities:  35% better than 2005 Title-24 has been achievable.  2008 Title-24 energy code contains new credits  Building industry has reacted to carrots and sticks  Insulation products  Radiant Barriers  Cool Roofs  HVAC efficiencies  Window/doors products  NFRC testing  Tank less water heaters www.energycode.com Energy Code Works, Inc.
  12. 12. Scope of this Class 1 Changes to Envelope Requirements 2 Changes to HVAC Requirements 3 New Residential Lighting Requirements 4 Impact of Time Dependant Valuation (TDV) www.energycode.com Energy Code Works, Inc.
  13. 13. Scope of this Class 5 Beyond Title-24: Envelope 6 Beyond Title-24: HVAC 7 Beyond Title-24: HERS Measures 8 SDG&E’s Incentive Programs www.energycode.com Energy Code Works, Inc.
  14. 14. 2008 Building Energy Standards Effective date: January 1, 2010  Some cities and counties will allow you to submit 2008 Title-24 compliance calculations prior to January 1, 2010.  Benefits of using 2008 Standards now (tract projects)  Current projects that might slip past January1 date should be analyzed using 2008 Standards to avoid surprises later. www.energycode.com Energy Code Works, Inc.
  15. 15. 2008 Building Energy Standards Effective date: January 1, 2010 www.energycode.com Energy Code Works, Inc.
  16. 16. 2008 Building Energy Standards  Future of Title-24 www.energycode.com Energy Code Works, Inc.
  17. 17. 2008 Building Energy Standards  Future of Title-24 www.energycode.com Energy Code Works, Inc.
  18. 18. 2008 Building Energy Standards  Future of Title-24 www.energycode.com Energy Code Works, Inc.
  19. 19. 2008 Building Energy Standards  Future of Title-24 www.energycode.com Energy Code Works, Inc.
  20. 20. Scope of this Class 1 Changes to Envelope Requirements 2 Changes to HVAC Requirements 3 New Residential Lighting Requirements 4 Impact of Time Dependant Valuation (TDV) www.energycode.com Energy Code Works, Inc.
  21. 21. Compliance Paths Two compliance paths available Prescriptive Performance www.energycode.com www.energycode.com
  22. 22. Compliance Paths Two compliance paths available Mandatory Measures Prescriptive Performance Prescriptive Performance Path Path www.energycode.com www.energycode.com
  23. 23. Compliance Paths Advantages/Disadvantages Mandatory Measures Prescriptive Performance Prescriptive Performance Path Path www.energycode.com www.energycode.com
  24. 24. Building Envelope Walls, floors, ceiling assemblies Windows, glass doors, skylights When required, testing and certification, & labeling requirements, where required. www.energycode.com www.energycode.com
  25. 25. Building Envelope Current 2005 Prescriptive Requirements www.energycode.com www.energycode.com
  26. 26. Building Envelope New 2008 Prescriptive Requirements www.energycode.com www.energycode.com
  27. 27. Building Envelope New 2008 Prescriptive Requirements Bottom Line: Prescriptive insulation levels remain essentially unchanged from 2005 standards Big change…..Fenestration requirements www.energycode.com www.energycode.com
  28. 28. Building Envelope Current 2005 Prescriptive Requirements www.energycode.com www.energycode.com
  29. 29. Building Envelope New 2008 Prescriptive Requirements www.energycode.com www.energycode.com
  30. 30. Building Envelope Windows, glass doors, skylights Two allowable methods for determining window & door performance: NFRC procedures/labels or… Use default tables (116-a & 116-b) www.energycode.com www.energycode.com
  31. 31. Building Envelope Windows, glass doors, skylights www.energycode.com www.energycode.com
  32. 32. Building Envelope www.energycode.com www.energycode.com
  33. 33. Building Envelope www.energycode.com www.energycode.com
  34. 34. Building Envelope Windows, glass doors, skylights www.energycode.com www.energycode.com
  35. 35. Building Envelope Windows, glass doors, skylights Default tables 116-a & 116-b www.energycode.com www.energycode.com
  36. 36. Building Envelope Windows, glass doors, skylights 2008 Package D www.energycode.com www.energycode.com
  37. 37. Building Envelope Windows, glass doors, skylights Package D vs. Default tables (U-factor) www.energycode.com www.energycode.com
  38. 38. Building Envelope Windows, glass doors, skylights Package D vs. Default tables (SHGC) www.energycode.com www.energycode.com
  39. 39. Building Envelope Windows, glass doors, skylights Package D vs. NFRC labels www.energycode.com www.energycode.com
  40. 40. Building Envelope Windows, glass doors, skylights Bottom Line: Prescriptive U-factor requirements almost 30% more stringent than 2005 code 2008 Standards will force you to use NFRC Labels Significant penalty for using default tables www.energycode.com www.energycode.com
  41. 41. Building Envelope When required, where required, testing, certification & labeling In 2008 code required prescriptively in all climate zones New, addition & alterations www.energycode.com www.energycode.com
  42. 42. Building Envelope When required, where required, testing, certification & labeling Energy Star Cool Roof does not qualify in California Must be certified & labeled by the Cool Roof Rating Council www.energycode.com www.energycode.com
  43. 43. Building Envelope When required, where required, testing, certification & labeling Exemptions to cool roof requirement: Roof areas covered by building integrated photovoltaic panels and solar hot water panels and roofs with existing roof ballasts w/weight of 25 lb/ft2 are exempted from cool roof requirement. www.energycode.com www.energycode.com
  44. 44. Scope of this Class 1 Changes to Envelope Requirements 2 Changes to HVAC Requirements 3 New Residential Lighting Requirements 4 Impact of Time Dependant Valuation (TDV) www.energycode.com Energy Code Works, Inc.
  45. 45. HVAC Minimum AFUE, SEER, EER SEER vs EER Prescriptive requirement No prescriptive alternatives HVAC change-outs Refrigerant Charge Measurement Cooling Coil Airflow Fat Watt Draw www.energycode.com www.energycode.com
  46. 46. HVAC Appliance Efficiency Regulations set HVAC efficiency minimums in Prescriptive Packages www.energycode.com www.energycode.com
  47. 47. HVAC Prescriptive Packages refer to Appliance Efficiency Regulations minimums www.energycode.com www.energycode.com
  48. 48. HVAC Minimum AFUE, SEER, EER SEER vs EER www.energycode.com www.energycode.com
  49. 49. HVAC Minimum AFUE, SEER, EER SEER vs EER Questions: What is the difference between EER and SEER? Why does it matter? www.energycode.com www.energycode.com
  50. 50. HVAC Minimum AFUE, SEER, EER SEER vs EER EER is measured at 80 degrees indoor air running continuously SEER is measured by using the EER and factoring in the same unit running under a lighter load (80 degrees indoor, 82 degrees outdoor and cycling on and off www.energycode.com www.energycode.com
  51. 51. HVAC Minimum AFUE, SEER, EER SEER vs EER Why this matters: Possible for two units with the same SEER to have different EERs For two units with a given SEER the one with the higher EER will be more efficient EER’s higher than 10 require HERS verification Take time to verify SEER and EER www.energycode.com www.energycode.com
  52. 52. HVAC Minimum AFUE, SEER, EER SEER vs EER Why this matters: EER higher than 10 will trigger a HERS credit in the Title-24 compliance calculations Will also appear on the CF-1R as a HERS measure required verification and a CF-4R www.energycode.com www.energycode.com
  53. 53. HVAC Minimum AFUE, SEER, EER SEER vs EER Bottom Line: Minimum efficiency levels remain essentially unchanged from 2005 standards. EER more important Big change…..Duct testing, Refrigerant Charge Measurement, Cooling coil airflow & Fan Watt Draw www.energycode.com www.energycode.com
  54. 54. HVAC Prescriptive requirement No prescriptive alternatives HVAC change-outs www.energycode.com www.energycode.com
  55. 55. HVAC Prescriptive requirement No prescriptive alternatives HVAC change-outs TXV verification or higher EER alternatives no longer options to avoid duct sealing & testing Performance approach is an option to tradeoff against duct sealing & testing www.energycode.com www.energycode.com
  56. 56. HVAC Prescriptive requirement No prescriptive alternatives HVAC change-outs HVAC change-outs Ducts must be sealed and tested under any of the following circumstances: www.energycode.com www.energycode.com
  57. 57. HVAC Prescriptive requirement No prescriptive alternatives HVAC change-outs HVAC change-outs 1. Air handler installed or replaced 2. Outdoor condensing unit installed or replaced 3. Cooling or heating coil installed or replaced 4. Furnace heat exchanger installed or replaced 5. When existing duct systems are altered in climate zones 2, 9, 10, 11, 12-16 www.energycode.com www.energycode.com
  58. 58. HVAC Refrigerant Charge Measurement Cooling Coil Airflow Fan Watt Draw Prescriptive Package Requirements Refrigerant charge Measurement Climate zones 2 and 8-15 (split systems only) Cooling Coil Airflow (greater than 350 cfm per ton) Climate zones 10-15 Fan Watt Draw (less than 0.58 watt per cfm) Climate zones 10-15 www.energycode.com www.energycode.com
  59. 59. HVAC Refrigerant Charge Measurement Cooling Coil Airflow Fan Watt Draw Prescriptive Package Requirements Refrigerant charge Measurement Climate zones 2 and 8-15 (split systems only) Cooling Coil Airflow (greater than 350 cfm per ton) Climate zones 10-15 Fan Watt Draw (less than 0.58 watt per cfm) Climate zones 10-15 www.energycode.com www.energycode.com
  60. 60. HVAC Refrigerant Charge Measurement Cooling Coil Airflow Fan Watt Draw www.energycode.com www.energycode.com
  61. 61. HVAC Refrigerant Charge Measurement Cooling Coil Airflow Fan Watt Draw www.energycode.com www.energycode.com
  62. 62. HVAC Refrigerant Charge Measurement Cooling Coil Airflow Fan Watt Draw Two permanently installed temperature sensors, one mounted on evap coil and one mounted on condenser coil. Must be type K with plug leading to outside of equipment accessible to HERS raters without any disassembly www.energycode.com www.energycode.com
  63. 63. HVAC Refrigerant Charge Measurement Cooling Coil Airflow Fan Watt Draw Two permanently installed temperature sensors, one mounted on evap coil and one mounted on condenser coil. Must be type K with plug leading to outside of equipment accessible to HERS raters without any disassembly www.energycode.com www.energycode.com
  64. 64. HVAC Refrigerant Charge Measurement Cooling Coil Airflow Fan Watt Draw Bottom line These HERS measures are baseline in Package D so they will be widespread Because they are required in Package D they are not available as a credit to help you go beyond Title-24 HVAC contractors will need to become familiar with testing procedure for all three HERS measures. CF-6R HVAC forms will need to be filled out prior to HERS verification tests Will need system in place for providing sensors, temperature and pressure access holes w/labels for HERS raters www.energycode.com www.energycode.com
  65. 65. Scope of this Class 1 Changes to Envelope Requirements 2 Changes to HVAC Requirements 3 New Residential Lighting Requirements 4 Impact of Time Dependant Valuation (TDV) www.energycode.com Energy Code Works, Inc.
  66. 66. TDV 4 Impact of Time Dependant Valuation (TDV) New for 2008 Residential Standards Previous versions of Title-24 did not account for time-of-use patterns TDV accounts for variations in cost related to time of day, seasons, geography, fuel type 2008 Standards now places a higher value on energy savings during high cost times Encourages designs that will reduce peak loads thru-out California. www.energycode.com Energy Code Works, Inc.
  67. 67. TDV 4 Impact of Time Dependant Valuation (TDV) Example: Single family residence 1800 sq. ft. Package D parameters www.energycode.com Energy Code Works, Inc.
  68. 68. TDV 4 Impact of Time Dependant Valuation (TDV) Example: SFR residence 1800 sq. ft. Package D www.energycode.com Energy Code Works, Inc.
  69. 69. TDV 4 Impact of Time Dependant Valuation (TDV) Example: SFR residence 1800 sq. ft. Package D 1ST Perf Run Front facing N www.energycode.com Energy Code Works, Inc.
  70. 70. TDV 4 Impact of Time Dependant Valuation (TDV) Example: SFR residence 1800 sq. ft. Package D 2nd Perf Run Multiple Orientations www.energycode.com Energy Code Works, Inc.
  71. 71. TDV 4 Impact of Time Dependant Valuation (TDV) Strategies for TDV Orientation is important is building design Take advantage of all overhangs and side fins in building design Model each window and door separately in compliance run Utilize exterior shading devices No credit for interior shading devices break www.energycode.com Energy Code Works, Inc.
  72. 72. TDV 4 Impact of Time Dependant Valuation (TDV) Bottom Line for 2008 Building designs that generate high heating/cooling loads during peak energy cost periods will be severely penalized Electric multipliers for 2008 up to 50 verses 20 in 2005 standards Gas multipliers for 2008 up to 1.5 vs. 1.0 in 2005 standards Upside: Energy saving features, strategies that reduce peak loads are rewarded greatly, can help you go “better than” Title-24 break www.energycode.com Energy Code Works, Inc.
  73. 73. Title-24 Building Energy Standards Energy Code Works, Inc. Break
  74. 74. Scope of this Class 5 Beyond Title-24: Envelope 6 Beyond Title-24: HVAC 7 Beyond Title-24: HERS Measures 8 SDG&E’s Incentive Programs www.energycode.com Energy Code Works, Inc.
  75. 75. Compliance Paths Two compliance paths available Prescriptive Performance www.energycode.com www.energycode.com
  76. 76. Building Envelope New 2008 Prescriptive Requirements www.energycode.com www.energycode.com
  77. 77. Building Envelope 2008 Upgrade Options Opaque Options for credit: Superbatt insulation Radiant Barrier House wrap www.energycode.com www.energycode.com
  78. 78. Building Envelope 2008 Upgrade Options Superbatt insulation R-15: 3 ½” thickness 2x4 framing R-21: 5 ½” thickness 2x6 framing www.energycode.com www.energycode.com
  79. 79. Building Envelope 2008 Upgrade Options Radiant Barrier benefits: Reduces attic temperature/thermal load on attic insulation Reduces thermal load on ducts www.energycode.com www.energycode.com
  80. 80. Building Envelope 2008 Upgrade Options House Wrap: Reduces building envelope air leakage Must be applied continuously All tears/breaks repaired Horizontal seams lapped Vertical seams lapped Windows/penetrations taped or caulked Taped or sealed at slab junction www.energycode.com www.energycode.com
  81. 81. Building Envelope 2008 Upgrade Options www.energycode.com www.energycode.com
  82. 82. Building Envelope 2008 Upgrade Options Default tables 116-a & 116-b www.energycode.com www.energycode.com
  83. 83. Building Envelope 2008 Upgrade Options Package D vs. NFRC labels www.energycode.com www.energycode.com
  84. 84. Building Envelope 2008 Upgrade Options www.energycode.com www.energycode.com
  85. 85. Building Envelope 2008 Upgrade Options Glazing Strategies for Beyond Title-24: Do not use default tables if possible Relatively easy to hit 0.40 UF/SHGC target Energy Star target of 0.30 UF/SHGC is driving window manufactures product more than California’s Title-24’s 0.40/0.40 www.energycode.com www.energycode.com
  86. 86. Building Envelope 5 Beyond Title-24: Envelope Results Package D Results: 6 www.energycode.com Energy Code Works, Inc.
  87. 87. Building Envelope 5 Beyond Title-24: Envelope Results Envelope Improvements Results: 6 Superbatt: R-15 wall insulation R-38 ceiling insulation Radiant Barrier House wrap Milgard Low-E windows: 0.30 U-factor 0.30 SHGC (Energystar) www.energycode.com Energy Code Works, Inc.
  88. 88. Building Envelope 5 Beyond Title-24: Envelope Results Envelope Improvements Results: Superbatt 6 Radiant Barrier Housewrap Milgard Low-E Windows www.energycode.com Energy Code Works, Inc.
  89. 89. Scope of this Class 5 Beyond Title-24: Envelope 6 Beyond Title-24: HVAC 7 Beyond Title-24: HERS Measures 8 SDG&E’s Incentive Programs www.energycode.com Energy Code Works, Inc.
  90. 90. HVAC Upgrades Beyond Title-24 Minimum AFUE, SEER, EER SEER vs EER Prescriptive requirement No prescriptive alternatives HVAC change-outs Refrigerant Charge Measurement Cooling Coil Airflow Fat Watt Draw www.energycode.com www.energycode.com
  91. 91. HVAC Beyond Title-24 Prescriptive Packages refer to Appliance Efficiency Regulations minimums www.energycode.com www.energycode.com
  92. 92. HVAC Beyond Title-24 Appliance Efficiency Regulations set HVAC efficiency minimums in Prescriptive Packages www.energycode.com www.energycode.com
  93. 93. HVAC Beyond Title-24 HVAC Strategies HVAC Strategies for Beyond Title-24: Higher AFUE (90%+) Higher SEER and higher EER HVAC zoning Ducts within conditioned space www.energycode.com www.energycode.com
  94. 94. HVAC Beyond Title-24 HVAC Strategies HVAC Zoning Living & Sleeping Zones www.energycode.com www.energycode.com
  95. 95. HVAC HVAC Strategies Duct Location Within Conditioned Space Buried ducts Both require extensive documentation www.energycode.com www.energycode.com
  96. 96. HVAC Beyond Title-24 Prescriptive requirement No prescriptive alternatives No credit potential www.energycode.com www.energycode.com
  97. 97. HVAC Beyond Title-24 Refrigerant Charge Measurement Cooling Coil Airflow Fan Watt Draw Prescriptive Package D Requirements Refrigerant charge Measurement Climate zones 2 and 8-15 (split systems only) Cooling Coil Airflow (greater than 350 cfm per ton) Climate zones 10-15 Fan Watt Draw (less than 0.58 watt per cfm) Climate zones 10-15 www.energycode.com www.energycode.com
  98. 98. HVAC Beyond Title-24 6 Beyond Title-24: HVAC 5 HVAC Improvements Results: 90% AFUE 14 SEER 11.00 EER HVAC Zoning www.energycode.com Energy Code Works, Inc.
  99. 99. HVAC Beyond Title-24 6 Beyond Title-24: HVAC 5 HVAC Improvements Results: www.energycode.com Energy Code Works, Inc.
  100. 100. Building Envelope 5 Beyond Title-24: Envelope Results Envelope Improvements Results: 6 Superbatt: R-15 wall insulation R-38 ceiling insulation Radiant Barrier Housewrap Milgard Low-E windows: 0.30 U-factor 0.30 SHGC (Energystar) www.energycode.com Energy Code Works, Inc.
  101. 101. HVAC Beyond Title-24 6 Beyond Title-24: HVAC 5 HVAC Improvements Results: 90% AFUE 14 SEER 11.00 EER HVAC Zoning Total: 25% better than Title-24 www.energycode.com Energy Code Works, Inc.
  102. 102. Scope of this Class 5 Beyond Title-24: Envelope 6 Beyond Title-24: HVAC 7 Beyond Title-24: HERS Measures 8 SDG&E’s Incentive Programs www.energycode.com Energy Code Works, Inc.
  103. 103. HERS Measures Duct Sealing •Sealed and HERS verified less than 6% supply fan flow •Change-outs: 15% or less of fan flow Package D, no credit Supply Duct • Conditioned space, buried ducts Credit, lots of documentation Location Supply Duct • Reduced surface area Credit, lots of documentation Credits • NEW CEC certified AHU w/less than 2% leakage. Low Leakage Duct sealing & testing also required. AHU •CHANGED Refrigerant charge verified using one of three methods Refrigerant Invasive, non-invasive & CID. No TXV to trade against Package D, Charge No credit www.energycode.com Energy Code Works, Inc.
  104. 104. HERS Measures CID • NEW Charge Indicator Device Credit, not yet available • NEW Requires air handling units maintain supply airflow greater CCA than 350 cfm per nominal ton of cooling capacity across the coil Package D, no credit Fan Watt • NEW Requires fan watt draw less than 0.58 watts per cfm Draw •Package D, no credit • HVAC condenser & coil correctly matched to achieve High EER high EER (above 10) Credit •Credit for A/C equipment having cooling capacity that meets Cooling calculated maximum cooling load. Credit, load calcs req. Capacity www.energycode.com Energy Code Works, Inc.
  105. 105. HERS Measures Evap Cooled • NEW Improves EER, water use limits & duct sealing, air flow, and Condensers refrigerant charge verification required. Credit Ice Storage • NEW Shifts peak energy use to off-peak hours (Ice Bear) A/C Additional HERS measures required Credit Envelope • Sealing, caulking, gaskets. Verified by HERS blower door test. Sealing •Credit • Framing stage field verification then insulation stage verification. QII • New QII verification for Spray Polyurethane Foam •Credit • Not a Title-24 credit, New Solar Home Program requirement Photovoltaic • HERS PV verifications required. www.energycode.com Energy Code Works, Inc.
  106. 106. HERS Measures HERS Measures most commonly specified for 2008: Duct Sealing Refrigerant Charge Cooling Coil Airflow Fan Watt Draw Photovoltaic QII www.energycode.com Energy Code Works, Inc.
  107. 107. Scope of this Class 7 Beyond Title-24: HERS Measures HERS credits assumed in run: Duct sealing & testing (Package D) Verified fan flow (package D Refrigerant charge verification (Package D) EER verification (credit) HVAC zoning: (credit) QII (credit) www.energycode.com Energy Code Works, Inc.
  108. 108. Scope of this Class 7 Beyond Title-24: HERS Measures HERS credits results: www.energycode.com Energy Code Works, Inc.
  109. 109. Scope of this Class 7 Beyond Title-24: HERS Measures HERS credits left remaining: Blower door test Ice storage system Ducts in conditioned space Measured duct surface area Water cooled condensor These credits can be used for plans with more glass area than baseline (20% CFA) Also: Radiant heating Tankless water heater www.energycode.com Energy Code Works, Inc.
  110. 110. Building Envelope 5 Beyond Title-24: Envelope Results Envelope Improvements Results: Superbatt 6 Radiant Barrier Housewrap Milgard Low-E Windows Adding a tankless water heater would have easily pushed results to 15% better than for LEED www.energycode.com Energy Code Works, Inc.
  111. 111. Beyond Title-24 7 Beyond Title-24: HERS Measures Resistance to HERS measures: HVAC contractors (duct testing): Extra expense “our ducts don’t leak” Insulation contractors: Extra expense Unnecessary, “our installations pass inspection” www.energycode.com Energy Code Works, Inc.
  112. 112. Beyond Title-24 7 Beyond Title-24: HERS Measures Resistance to HERS measures: HVAC contractors (duct testing): “Our ducts don’t leak” Extra expense Most new ducts leak over 25% Common problems: Poor duct design Connections not to code Leaky fan coil units Ducts not properly supported www.energycode.com Energy Code Works, Inc.
  113. 113. Beyond Title-24 7 Beyond Title-24: HERS Measures Resistance to HERS measures: Duct testing Air Conditioning Contractors of America Quality Installation Specification HVAC industry guide that “establishes minimum criteria for the proper installation, maintenance and servicing of HVAC systems” www.energycode.com Energy Code Works, Inc.
  114. 114. Beyond Title-24 7 Beyond Title-24: HERS Measures Resistance to HERS measures: Duct testing Air Conditioning Contractors of America Quality Installation Specification Uses identical criteria for allowable duct leakage as Title-24’s HERS duct sealing & testing procedures. www.energycode.com Energy Code Works, Inc.
  115. 115. Beyond Title-24 7 Beyond Title-24: HERS Measures Resistance to HERS measures: Insulation contractors: Extra expense Unnecessary, “our installations pass inspection” Why is it more expensive to do it right? What guidelines are insulation contractors using normally? www.energycode.com Energy Code Works, Inc.
  116. 116. Beyond Title-24 7 Beyond Title-24: HERS Measures North American Insulation Manufacturers of America Guidelines for installation of insulation and hiring of insulation contractors www.energycode.com Energy Code Works, Inc.
  117. 117. Beyond Title-24 7 Beyond Title-24: HERS Measures North American Insulation Manufacturers of America Guidelines virtually identical with HERS QII compliance checklist If contractors follows this checklist they likely will pass HERS QII verification inspection www.energycode.com Energy Code Works, Inc.
  118. 118. Beyond Title-24 7 Beyond Title-24: HERS Measures Bottom line HERS measures represent one of the most cost- effective energy savings strategies in the energy code. Energy savings & quality control HVAC contractors and Insulation contractors will Need to become familiar with HERS criteria for compliance. HERS requirements are virtually identical to their own industry installation guidelines www.energycode.com Energy Code Works, Inc.
  119. 119. Compliance Forms CF-6R bottom line: CF-6R forms a major part of Title-24 compliance now. The real “teeth” in the new code. Installation Contractors need to be familiar with CF-6R forms CF-6R Installation Also will need to review CF-1R during bid process Certificate to determine if any HERS measures will affect their CF-4R Field work Verification/HERS Will require coordination between Designer, Title-24 consultant and HERS raters CF-6R forms filled out by hand will be unwieldy because of requirements to file electronically Will need a system to provide documentation package to homeowner: CF-1R,CF-6R, CF-4R, Operation & maintenance information for all features and devices. www.energycode.com Energy Code Works, Inc.
  120. 120. Compliance Forms Certificate of Compliance (CF-1R) Submitted to plancheck and Prepared by Title-24 consultant or approved copy provided to General designer Contractor Installation CF-6R Installation Certificate CF-4R Field Verification/HERS www.energycode.com Energy Code Works, Inc.
  121. 121. Compliance Forms Certificate of Compliance (CF-1R) Submitted to plancheck and Prepared by Title-24 consultant or approved copy provided to General designer Contractor Installation CF-6R Installation Certificate CF-4R Field Certificate of Installation (CF-6R) Verification/HERS Filled out by contractor and sub- Provided to inspector & HERS Rater contractors & later to the homeowner www.energycode.com Energy Code Works, Inc.
  122. 122. Compliance Forms Certificate of Compliance (CF-1R) Submitted to plancheck and Prepared by Title-24 consultant or approved copy provided to General designer Contractor Installation CF-6R Installation Certificate CF-4R Field Certificate of Installation (CF-6R) Verification/HERS Filled out by contractor and sub- Provided to inspector & HERS Rater contractors & later to the homeowner Certificate of Verification and Diagnostic (CF-4R) Completed by HERS Rater Registered with CHEERS or Calcerts and copy provided to contractor www.energycode.com Energy Code Works, Inc.
  123. 123. Compliance Forms Registration New concept and new requirement Introduced in stages thru 2010 Registration January 1, 2010 required for low-rise residential CF-6R Installation buildings, multiple orientations , & HERS measures Certificate CF-4R Field Starting October 1, 2010 registration required for ALL Verification/HERS low-rise residential buildings with HERS measures Registration CF-1R, CF-6R, CF-4R required to be submitted electronically to HERS provider (CHEERS or CalCerts) Registry available to authorized users of HERS data registry Includes energy consultants, builders, owners, contractors, installers, HERS raters, building departments, C.E.C. www.energycode.com Energy Code Works, Inc.
  124. 124. Compliance Forms Registration Implications: If registration required building department will require Registration registered copies of CF-1R , CF-6R, and CF-4R that display their unique registration number CF-6R Installation Certificate Contractors may not be set up to submit their CF-6R forms CF-4R Field electronically for registration Verification/HERS Registration Can use services of HERS raters to facilitate transmittal of CF-6R to registry. However contractor is responsible for content of CF-6R and must sign. HERS rater cannot certify information on a CF-6R form. The days of filling out CF-6R on the hood of contractors work truck are basically over Good communication and record keeping critical Use time left to put into place filing system/record keeping system www.energycode.com Energy Code Works, Inc.
  125. 125. Preparation for 1/1/2009 1 Energy Consultants Download Standards, Manual, Appendixes http://www.energy.ca.gov/title24/2008standards/index.html Attend training seminars for approved software Develop record keeping procedure for registration requirement www.energycode.com Energy Code Works, Inc.
  126. 126. Preparation for 1/1/2009 2 Architects/Designers Set up drawing files to accept all forms required on plans Set up note blocks for ASHRAE 62.2 requirements Window selection cannot be put off until building under construction. Using default U-factors/SHGC for plan-check submittals will make it difficult if not impossible to comply. Bring Title-24 consultant on board early in design stage www.energycode.com Energy Code Works, Inc.
  127. 127. Preparation for 1/1/2009 3 HVAC Contractors Be prepared to perform rough-in duct testing (4% leakage) HERS rater can do this for you Provide training to your installers for proper duct sealing, airflow, refrigerant charge to minimize HERS verification failures Prepare proper load calcs for every job and have documentation ready. Will need system for providing access holes and labeling to avoid holdups in HERS verifications Be prepared to fill out electronically CF-6R for HVAC new and change-outs Develop system to record and track CF-6R forms that will be needed later in HERS process or incentive process Develop good relationship with local HERS rater(s) HERS rater cannot be part of your company in any way shape or form, cannot self- verify. HERS raters are audited annually. www.energycode.com Energy Code Works, Inc.
  128. 128. Preparation for 1/1/2009 4 Building Officials Download Standards, Manual, Appendixes http://www.energy.ca.gov/title24/2008standards/index.html Building departments will need to set up access to HERS provider data registry. Understand which documents required at plan-check and which are required at inspection (CF-1R, CF-6R, kitchen lighting, CF-4R) Forms are much more data intensive. Get familiar with new layout of forms and all the data that is now required. HERS measures now baseline. Submittals that comply without them should be reviewed closely. Inspectors will need to be familiar with all of the CF-6R forms. If registration required must be registered CF-6R forms, not filled out by hand. Training on ASHRAE 62.2 highly recommended. Become familiar with ventilation calculation methods fan/control features that satisfy this requirement. Important for on-site building inspector, not at plancheck. www.energycode.com Energy Code Works, Inc.
  129. 129. Energy Code Works, Inc. Mark Madison CEPE, CEA, AEE, HERS Rater, GreenPoint Rater, ResNet Rater, Member CABEC, CHEERS
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×