Download - Advanced Residential T24 - Compliance Class
5/20/2010
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Energy Code Works, Inc.
Title-24 Building Energy Standards
Mark Madison CEPE, CEA, AEE, HERS Rater, GreenPoint Rater, ResNet Rater, Member CABEC, CHEERS
©2010 Energy Code Works, Inc.
Housekeeping
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AIA CES credits:
3 HSW (Health Safety & Welfare)3 SD (Sustainable Design)
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©2010 Energy Code Works, Inc.
Beyond Title-24
Advanced Title-24 scope: Why go beyond Title-24? How do you get beyond Title-24?
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©2010 Energy Code Works, Inc.
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
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©2010 Energy Code Works, Inc.
Beyond Title-24
Why Beyond Title-24? Incentives and requirements (carrots & sticks)
Carrots: Utility incentive programs PV incentives (NSHP) Energy-Star LEED
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©2010 Energy Code Works, Inc.
Beyond Title-24
Why Beyond Title-24? Incentives and requirements (carrots & sticks)
Carrots: Utility incentive programs PV incentives (NSHP) Energy-Star LEED
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©2010 Energy Code Works, Inc.
Beyond Title-24
Why Beyond Title-24? Incentives and requirements (carrots & sticks)
Carrots: Utility incentive programs PV incentives (NSHP) Energy-Star LEED
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©2010 Energy Code Works, Inc.
Beyond Title-24
Why Beyond Title-24?
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©2010 Energy Code Works, Inc.
Beyond Title-24
Why Beyond Title-24? Incentives and requirements (carrots & sticks)
Carrots: Utility incentive programs PV incentives (NSHP) Energy-Star LEED
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©2010 Energy Code Works, Inc.
Beyond Title-24
Why Beyond Title-24? Incentives and requirements (carrots & sticks)
Sticks Cities requiring better than Title-24 compliance Energy efficient mortgages
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©2010 Energy Code Works, Inc.
Beyond Title-24
Why Beyond Title-24? Incentives and requirements (carrots & sticks)
Sticks Cities requiring better than Title-24 compliance Energy efficient mortgages
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©2010 Energy Code Works, Inc.
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
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©2010 Energy Code Works, Inc.
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
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©2010 Energy Code Works, Inc.
Scope of this Class
Changes to Envelope Requirements1
Changes to HVAC Requirements2
New Residential Lighting Requirements3
Impact of Time Dependant Valuation (TDV) 4
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©2010 Energy Code Works, Inc.
Scope of this Class
Beyond Title-24: Envelope5
Beyond Title-24: HVAC6
Beyond Title-24: HERS Measures7
SDG&E’s Incentive Programs 8
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©2010 Energy Code Works, Inc.
2008 Building Energy Standards
Effective date: January 1, 2010
Projects permitted prior to January 1, 2010 will continue to use 2005 energy code
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©2010 Energy Code Works, Inc.
2008 Building Energy Standards
Effective date: January 1, 2010
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2008 Building Energy Standards
Future of Title-24
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©2010 Energy Code Works, Inc.
2008 Building Energy Standards
Future of Title-24
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©2010 Energy Code Works, Inc.
2008 Building Energy Standards
Future of Title-24
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©2010 Energy Code Works, Inc.
2008 Building Energy Standards
Future of Title-24
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©2010 Energy Code Works, Inc.
Scope of this Class
Changes to Envelope Requirements1
Changes to HVAC Requirements2
New Residential Lighting Requirements3
Impact of Time Dependant Valuation (TDV) 4
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©2010 Energy Code Works, Inc.
Compliance Paths
Two compliance paths available
Prescriptive Performance
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©2010 Energy Code Works, Inc.
Compliance Paths
Two compliance paths available
Prescriptive Performance
Mandatory Measures
Performance Path
Prescriptive Path
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©2010 Energy Code Works, Inc.
Compliance Paths
Advantages/Disadvantages
Prescriptive Performance
Mandatory Measures
Performance Path
Prescriptive Path
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Building Envelope
Walls, floors, ceiling assemblies
Windows, glass doors, skylights
When required, testing and certification, & labeling requirements, where required.
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Building Envelope
Current 2005 Prescriptive Requirements
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Building Envelope
New 2008 Prescriptive Requirements
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©2010 Energy Code Works, Inc.
Building Envelope
New 2008 Prescriptive Requirements
Bottom Line:Prescriptive insulation levels remain essentially unchanged from 2005 standards
Big change…..Fenestration requirements
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Building Envelope
Current 2005 Prescriptive Requirements
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©2010 Energy Code Works, Inc.
Building Envelope
New 2008 Prescriptive Requirements
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©2010 Energy Code Works, Inc.
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)
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©2010 Energy Code Works, Inc.
Building Envelope
Windows, glass doors, skylights
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©2010 Energy Code Works, Inc.
Building Envelope
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©2010 Energy Code Works, Inc.
Building Envelope
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©2010 Energy Code Works, Inc.
Building Envelope
Windows, glass doors, skylights
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©2010 Energy Code Works, Inc.
Building Envelope
Windows, glass doors, skylights
Default tables 116-a & 116-b
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©2010 Energy Code Works, Inc.
Building Envelope
Windows, glass doors, skylights
2008 Package D
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©2010 Energy Code Works, Inc.
Building Envelope
Windows, glass doors, skylights
Package D vs. Default tables (U-factor)
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©2010 Energy Code Works, Inc.
Building Envelope
Windows, glass doors, skylights
Package D vs. Default tables (SHGC)
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©2010 Energy Code Works, Inc.
Building Envelope
Windows, glass doors, skylights
Package D vs. NFRC labels
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©2010 Energy Code Works, Inc.
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
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Building Envelope
When required, where required, testing, certification & labeling
In 2008 code required prescriptively in all climate zonesNew, addition & alterations
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©2010 Energy Code Works, Inc.
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
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©2010 Energy Code Works, Inc.
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.
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©2010 Energy Code Works, Inc.
Scope of this Class
Changes to Envelope Requirements1
Changes to HVAC Requirements2
New Residential Lighting Requirements3
Impact of Time Dependant Valuation (TDV) 4
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©2010 Energy Code Works, Inc.
HVAC
Minimum AFUE, SEER, EER
SEER vs EER
Prescriptive requirementNo prescriptive alternativesHVAC change-outs
Refrigerant Charge MeasurementCooling Coil AirflowFat Watt Draw
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©2010 Energy Code Works, Inc.
HVAC
Appliance Efficiency Regulations set HVAC efficiency minimums in Prescriptive Packages
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©2010 Energy Code Works, Inc.
HVAC
Prescriptive Packages refer to Appliance Efficiency Regulations minimums
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©2010 Energy Code Works, Inc.
HVAC
Minimum AFUE, SEER, EER
SEER vs EER
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©2010 Energy Code Works, Inc.
HVAC
Minimum AFUE, SEER, EER
SEER vs EER
Questions:
What is the difference between EER and SEER?
Why does it matter?
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©2010 Energy Code Works, Inc.
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
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©2010 Energy Code Works, Inc.
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
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©2010 Energy Code Works, Inc.
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
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©2010 Energy Code Works, Inc.
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
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©2010 Energy Code Works, Inc.
HVAC
Prescriptive requirementNo prescriptive alternativesHVAC change-outs
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©2010 Energy Code Works, Inc.
HVAC
Prescriptive requirementNo prescriptive alternativesHVAC 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
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©2010 Energy Code Works, Inc.
HVAC
Prescriptive requirementNo prescriptive alternativesHVAC change-outs
HVAC change-outs
Ducts must be sealed and tested under any of the following circumstances:
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©2010 Energy Code Works, Inc.
HVAC
Prescriptive requirementNo prescriptive alternativesHVAC change-outs
HVAC change-outs
1. Air handler installed or replaced2. Outdoor condensing unit installed or replaced3. Cooling or heating coil installed or replaced4. Furnace heat exchanger installed or replaced5. When existing duct systems are altered in
climate zones 2, 9, 10, 11, 12-16
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©2010 Energy Code Works, Inc.
HVAC
Refrigerant Charge MeasurementCooling Coil AirflowFan Watt Draw
Prescriptive Package Requirements
Refrigerant charge MeasurementClimate 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
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©2010 Energy Code Works, Inc.
HVAC
Refrigerant Charge MeasurementCooling Coil AirflowFan Watt Draw
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©2010 Energy Code Works, Inc.
HVAC
Refrigerant Charge MeasurementCooling Coil AirflowFan Watt Draw
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©2010 Energy Code Works, Inc.
HVAC
Refrigerant Charge MeasurementCooling Coil AirflowFan 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
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©2010 Energy Code Works, Inc.
HVAC
Refrigerant Charge MeasurementCooling Coil AirflowFan 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
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©2010 Energy Code Works, Inc.
HVAC
Refrigerant Charge MeasurementCooling Coil AirflowFan 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
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©2010 Energy Code Works, Inc.
Scope of this Class
Changes to Envelope Requirements1
Changes to HVAC Requirements2
New Residential Lighting Requirements3
Impact of Time Dependant Valuation (TDV) 4
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©2010 Energy Code Works, Inc.
TDV
Impact of Time Dependant Valuation (TDV) 4
New for 2008 Residential Standards
Previous versions of Title-24 did not account for time-of-use patternsTDV accounts for variations in cost related to time of day, seasons, geography, fuel type2008 Standards now places a higher value on energy savings during high cost timesEncourages designs that will reduce peak loads thru-out California.
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©2010 Energy Code Works, Inc.
TDV
Impact of Time Dependant Valuation (TDV) 4
Example:Single family residence1800 sq. ft.Package D parameters
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©2010 Energy Code Works, Inc.
TDV
Impact of Time Dependant Valuation (TDV) 4
Example:SFR residence1800 sq. ft.Package D
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©2010 Energy Code Works, Inc.
TDV
Impact of Time Dependant Valuation (TDV) 4
Example:SFR residence1800 sq. ft.Package D
1ST Perf RunFront facing N
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©2010 Energy Code Works, Inc.
TDV
Impact of Time Dependant Valuation (TDV) 4
Example:SFR residence1800 sq. ft.Package D
2nd Perf RunMultiple Orientations
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©2010 Energy Code Works, Inc.
TDV
Impact of Time Dependant Valuation (TDV) 4
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
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©2010 Energy Code Works, Inc.
TDV
Impact of Time Dependant Valuation (TDV) 4
Bottom Line for TDV 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
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Energy Code Works, Inc.
Title-24 Building Energy Standards
Break
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©2010 Energy Code Works, Inc.
Scope of this Class
Beyond Title-24: Envelope5
Beyond Title-24: HVAC6
Beyond Title-24: HERS Measures7
SDG&E’s Incentive Programs 8
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©2010 Energy Code Works, Inc.
Compliance Paths
Two compliance paths available
Prescriptive Performance
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©2010 Energy Code Works, Inc.
Building Envelope
New 2008 Prescriptive Requirements
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©2010 Energy Code Works, Inc.
Building Envelope
2008 Upgrade Options
Opaque Options for credit:Superbatt insulationOverhangs/SidefinsHouse wrap
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©2010 Energy Code Works, Inc.
Building Envelope
2008 Upgrade Options
Superbatt insulationR-15: 3 ½” thickness 2x4 framingR-21: 5 ½” thickness 2x6 framing
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©2010 Energy Code Works, Inc.
Building Envelope
2008 Upgrade Options
OverhangsIgnored in prescriptive approachLarge credit using performanceRequires modeling each window/glazed door separately
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©2010 Energy Code Works, Inc.
Building Envelope
2008 Upgrade Options
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©2010 Energy Code Works, Inc.
Building Envelope
2008 Upgrade Options
House Wrap:Reduces building envelope air leakage
Must be applied continuouslyAll tears/breaks repairedHorizontal seams lappedVertical seams lappedWindows/penetrations taped or caulkedTaped or sealed at slab junction
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Building Envelope
2008 Upgrade Options
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©2010 Energy Code Works, Inc.
Building Envelope
2008 Upgrade Options
Default tables 116-a & 116-b
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©2010 Energy Code Works, Inc.
Building Envelope
2008 Upgrade Options
Package D vs. NFRC labels
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Building Envelope
2008 Upgrade Options
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©2010 Energy Code Works, Inc.
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
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Building Envelope
Beyond Title-24: Envelope Results5
6Package DResults:
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©2010 Energy Code Works, Inc.
Building Envelope
Beyond Title-24: Envelope Results5
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Envelope Improvements Results:
Superbatt: R-15 wall insulation R-38 ceiling insulation
House wrap
Modeled overhangs and sidefins
Milgard Low-E windows: 0.30 U-factor 0.30 SHGC (Energystar)
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©2010 Energy Code Works, Inc.
Building Envelope
Beyond Title-24: Envelope Results5
6
Envelope Improvements Results:
SuperbattHousewrapOverhangsMilgard Low-EWindows
90
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©2010 Energy Code Works, Inc.
Scope of this Class
Beyond Title-24: Envelope5
Beyond Title-24: HVAC6
Beyond Title-24: HERS Measures7
SDG&E’s Incentive Programs 8
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©2010 Energy Code Works, Inc.
HVAC Upgrades Beyond Title-24
Minimum AFUE, SEER, EER
SEER vs EER
Prescriptive requirementNo prescriptive alternativesHVAC change-outs
Refrigerant Charge MeasurementCooling Coil AirflowFat Watt Draw
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©2010 Energy Code Works, Inc.
HVAC Beyond Title-24
Prescriptive Packages refer to Appliance Efficiency Regulations minimums
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©2010 Energy Code Works, Inc.
HVAC Beyond Title-24
Appliance Efficiency Regulations set HVAC efficiency minimums in Prescriptive Packages
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©2010 Energy Code Works, Inc.
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
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©2010 Energy Code Works, Inc.
HVAC Beyond Title-24
HVAC Strategies
HVAC Zoning
Living & Sleeping Zones
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©2010 Energy Code Works, Inc.
HVAC
HVAC Strategies
Duct Location
Within Conditioned Space
Buried ducts
Both require extensive documentation
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©2010 Energy Code Works, Inc.
HVAC Beyond Title-24
Prescriptive requirementNo prescriptive alternativesNo credit potential
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©2010 Energy Code Works, Inc.
HVAC Beyond Title-24
Refrigerant Charge MeasurementCooling Coil AirflowFan Watt Draw
Prescriptive Package D Requirements
Refrigerant charge MeasurementClimate 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
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©2010 Energy Code Works, Inc.
HVAC Beyond Title-24
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Beyond Title-24: HVAC6
HVAC Improvements Results:
90% AFUE
14 SEER 11.00 EER
HVAC Zoning
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©2010 Energy Code Works, Inc.
HVAC Beyond Title-24
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Beyond Title-24: HVAC6
HVAC Improvements Results:
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©2010 Energy Code Works, Inc.
Building Envelope
Beyond Title-24: Envelope Results5
6
Envelope Improvements Results:
Superbatt: R-15 wall insulation R-38 ceiling insulation
Overhangs, sidefins
Housewrap
Milgard Low-E windows: 0.30 U-factor 0.30 SHGC (Energystar)
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HVAC Beyond Title-24
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Beyond Title-24: HVAC6
HVAC Improvements Results:
90% AFUE
14 SEER 11.00 EER
HVAC Zoning
Total: 25% better than Title-24
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©2010 Energy Code Works, Inc.
Scope of this Class
Beyond Title-24: Envelope5
Beyond Title-24: HVAC6
Beyond Title-24: HERS Measures7
SDG&E’s Incentive Programs 8
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©2010 Energy Code Works, Inc.
Refrigerant Charge
Low Leakage AHU
Supply Duct Credits
Supply Duct
Location
Duct Sealing •Sealed and HERS verified less than 6% supply fan flow•Change-outs: 15% or less of fan flow Package D, no credit
• Conditioned space, buried ducts Credit, lots of documentation
• Reduced surface area Credit, lots of documentation
• NEW CEC certified AHU w/less than 2% leakage.Duct sealing & testing also required.
•CHANGED Refrigerant charge verified using one of three methods Invasive, non-invasive & CID. No TXV to trade against Package D,
No credit
HERS Measures
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Refrigerant Charge
Low Leakage AHU
Supply Duct Credits
HERS Measures
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©2010 Energy Code Works, Inc.
Refrigerant Charge
Low Leakage AHU
Supply Duct Credits
HERS Measures
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©2010 Energy Code Works, Inc.
Low Leakage AHU
Supply Duct Credits
HERS Measures
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Proper Refrigerant Charge Verification:
Will be very common because of change-out rules
Very cost-effective
Overcharged or undercharged system can reduce a 14 SEER unit to below 9 SEER
Must be performed by an independentHERS rater
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Cooling Capacity
High EER
Fan Watt Draw
CCA
CID • NEW Charge Indicator Device Credit, not yet available
• NEW Requires air handling units maintain supply airflow greater than 350 cfm per nominal ton of cooling capacity across the coil Package D, no credit
• NEW Requires fan watt draw less than 0.58 watts per cfm•Package D, no credit
• HVAC condenser & coil correctly matched to achieve high EER (above 10) Credit
•Credit for A/C equipment having cooling capacity that meets calculated maximum cooling load. Credit, load calcs req.
HERS Measures
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Photovoltaic
QII
Envelope Sealing
Ice Storage
A/C
Evap Cooled Condensers
• NEW Improves EER, water use limits & duct sealing, air flow, and refrigerant charge verification required. Credit
• NEW Shifts peak energy use to off-peak hours (Ice Bear) Additional HERS measures required Credit
• Sealing, caulking, gaskets. Verified by HERS blower door test.•Credit
• Framing stage field verification then insulation stage verification.• New QII verification for Spray Polyurethane Foam•Credit
• Not a Title-24 credit, New Solar Home Program requirement• HERS PV verifications required.
HERS Measures
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PhotovoltaicQII
Fan Watt Draw
Cooling Coil Airflow
Refrigerant Charge
Duct Sealing
HERS Measures
HERS Measures most commonly specified for 2008:
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©2010 Energy Code Works, Inc.
Scope of this Class
Beyond Title-24: HERS Measures7
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)
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Scope of this Class
Beyond Title-24: HERS Measures7
HERS creditsresults:
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©2010 Energy Code Works, Inc.
Scope of this Class
Beyond Title-24: HERS Measures7
HERS credits left remaining:
Blower door testIce storage systemDucts in conditioned spaceMeasured duct surface areaWater cooled condenser
These credits can be used for plans with more glass area than baseline (20% CFA)
Also:Radiant heatingTankless water heater
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Building Envelope
Beyond Title-24: Envelope Results5
6
Envelope Improvements Results:
SuperbattRadiant BarrierHousewrapMilgard Low-EWindows
Adding a tanklesswater heater would have easily pushed results to15% better thanfor LEED
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Building Envelope
Beyond Title-24: Extreme Compliance5
6
116
Shipping Container HouseMetal sidesMetal framingOver 50% glass/floor ratioJoshua Tree!
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Building Envelope
Beyond Title-24: Extreme Compliance5
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Shipping Container House
Title-24 strategies:Isolated metal framing
©2010 Energy Code Works, Inc.
Building Envelope
Beyond Title-24: Extreme Compliance5
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Shipping Container House
Title-24 strategies:Exterior shading
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Building Envelope
Beyond Title-24: Extreme Compliance5
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Shipping Container House
Title-24 strategies:HVAC zoningDuctless split unitsTankless water heatersHigh performancewindows/doors
©2010 Energy Code Works, Inc.
Beyond Title-24
Beyond Title-24: HERS Measures7
Resistance to HERS measures:
HVAC contractors (duct testing):Extra expense“our ducts don’t leak”
Insulation contractors:Extra expenseUnnecessary, “our installations pass inspection”
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Beyond Title-24
Beyond Title-24: HERS Measures7
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 designConnections not to codeLeaky fan coil unitsDucts not properly supported
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Beyond Title-24
Beyond Title-24: HERS Measures7
Resistance to HERS measures:
Duct testing
Air Conditioning Contractors of AmericaQuality Installation Specification
HVAC industry guide that “establishes minimum criteria for the proper installation, maintenance and servicing of HVAC systems”
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Beyond Title-24
Beyond Title-24: HERS Measures7
Resistance to HERS measures:
Duct testing
Air Conditioning Contractors of AmericaQuality Installation Specification
Uses identical criteria for allowable ductleakage as Title-24’s HERS duct sealing & testing procedures.
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Beyond Title-24
Beyond Title-24: HERS Measures7
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Beyond Title-24
Beyond Title-24: HERS Measures7
Resistance to HERS measures:Insulation contractors:Extra expenseUnnecessary, “our installations pass inspection”
Why is it more expensive to do it right?
What guidelines are insulation contractors using normally?
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©2010 Energy Code Works, Inc.
Beyond Title-24
Beyond Title-24: HERS Measures7
North American InsulationManufacturers of America
Guidelines for installation of insulation and hiring of insulation contractors
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Beyond Title-24
Beyond Title-24: HERS Measures7
North American InsulationManufacturers of America
Guidelines virtually identical withHERS QII compliance checklist
If contractors follows this checklistthey likely will pass HERS QIIverification inspection
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Beyond Title-24: HERS Measures7
QII in Title-24 compliance run
R-13 wall insulation is derated to R-8 without QII
When QII assumed R-13 is improved to R-9.5
Baseline Title-24 assumes poor quality insulation
QII is credit for good quality installation
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Beyond Title-24
Beyond Title-24: HERS Measures7QII in real world: The good
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Beyond Title-24
Beyond Title-24: HERS Measures7QII in real world: the bad
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Beyond Title-24
Beyond Title-24: HERS Measures7QII in real world: the ugly
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Beyond Title-24: HERS Measures7QII in real world
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Beyond Title-24: HERS Measures7
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 willNeed to become familiar with HERS criteria for compliance.
HERS requirements are virtually identical to their own industry installation guidelines
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QII Training for ContractorsCity of Santa Monica
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Compliance Forms
CF-6R Installation CertificateCF-4R Field Verification/HERS
Installation
Certificate of Compliance (CF-1R)
Prepared by Title-24 consultant or designer
Submitted to plancheck and approved copy provided to General
Contractor
135
©2010 Energy Code Works, Inc.
Compliance Forms
CF-6R Installation CertificateCF-4R Field Verification/HERS
Installation
Certificate of Installation (CF-6R)
Filled out by contractor and sub-contractors
Provided to inspector & HERS Rater & later to the homeowner
Certificate of Compliance (CF-1R)
Prepared by Title-24 consultant or designer
Submitted to plancheck and approved copy provided to General
Contractor
136
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69
©2010 Energy Code Works, Inc.
Compliance Forms
CF-6R Installation CertificateCF-4R Field Verification/HERS
Installation
Certificate of Verification and Diagnostic (CF-4R)
Completed by HERS Rater Registered with CHEERS or Calcertsand copy provided to contractor
Certificate of Installation (CF-6R)
Filled out by contractor and sub-contractors
Provided to inspector & HERS Rater & later to the homeowner
Certificate of Compliance (CF-1R)
Prepared by Title-24 consultant or designer
Submitted to plancheck and approved copy provided to General Contractor
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Energy Code Works, Inc.
Mark Madison CEPE, CEA, AEE, HERS Rater, GreenPoint Rater, ResNet Rater, Member CABEC, CHEERS