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8/9/2019 2008 Updates & Changes
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Energy Code Works, Inc.
Title-24 Building Energy Standards
Mark MadisonCEPE, CEA, AEE, HERS Rater,GreenPoint Rater, ResNet Rater, Member CABEC, CHEERS
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
New Ventilation Requirements5
New HERS Credits6
New Forms & Registration Requirements7
Q&A8
2010 Energy Code Works Inc.
2008 Building Energy Standards
Effective date: January 1, 2010
Some cities and counties can accept 2008 Title-24 compliancecalculations prior to January 1, 2010. Most wont
Benefits of using 2008 Standards now (tract projects)
Current projects that might slip past January1 date should beanalyzed using 2008 Standards to avoid surprises later.
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2010 Energy Code Works Inc.
2008 Building Energy Standards
Effective date: January 1, 2010
2010 Energy Code Works Inc.
2008 Building Energy Standards
Brief History of Title-24
1976 California Energy Commission created
1977 Warren-Alquist Act
The standards shall be cost effective
C.E.C. shall periodically update the
standards and adopt revisions when
deemed necessary
Al Alquist
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2008 Building Energy Standards
Brief History of Title-24 1978 Standards
1980 Standards
1982 Standards
1984 Standards
1986 Standards
1987 Standards
1988 Standards
1992 Standards
1995 Standards
1998 Standards
2001 Standards
2005 Standards
2010 Energy Code Works Inc.
2008 Building Energy Standards
Brief History of Title-24 1st edition of Title-24
Building Energy Standards
July 26, 1978, 114 pages
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2010 Energy Code Works Inc.
2008 Building Energy Standards
Brief History of Title-24 1978 Prescriptive Requirements
2010 Energy Code Works Inc.
2008 Building Energy Standards
Brief History of Title-24 Current 2005 Prescriptive Requirements
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2010 Energy Code Works Inc.
2008 Building Energy Standards
Brief History of Title-24 Result of 30 years of Title-24 Standards:
2010 Energy Code Works Inc.
2008 Building Energy Standards
Brief History of Title-24 2008 Title-24 Energy Standards
Standards : 166 pages
Residential Manual: 522 pages
Non-Res Manual: 901 pages
Appendixes: 352 pages
Appliance Efficiency Regs: 238 pages
Title-24 ACM Manual: 212 pages
HERS Manual: 106 pages
HERS Regulations: 24 pages
Total: 2521 pages
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2008 Building Energy Standards
Brief History of Title-24 1978 thru 1998 Title-24 fairly low priority concern in plancheck process
2001 Standards changed all that
Tighter code/HERS Measures/City Requirements have made Title-24 apriority best addressed early in design stage
Utility Incentive Programs also use Title-24 as yardstick to qualifysubmittals into their programs.
2008 bottom l ine:
Title-24 needs to be incorporated early into the building design process
Title-24 is not over when permit is issued
All in design team need to be well versed in Title-24 requirements,HERS measures, forms and inspections, coordination is critical.
2010 Energy Code Works Inc.
2008 Building Energy Standards
Brief History of Title-24 Compliance forms have grown exponentially
1978, 2 pages
2008 CF-1R, MF-1R, CF-6R total 68 pages!
Minimum of 8 and up to 24 pages on the drawings
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2010 Energy Code Works Inc.
2008 Building Energy Standards
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
2010 Energy Code Works Inc.
Compliance Paths
Two compliance paths available
Prescriptive Performance
MandatoryMeasures
PerformancePath
PrescriptivePath
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Compliance Paths
Advantages/Disadvantages
Prescriptive Performance
PrescriptivePath
PerformancePath
AdvantagesSimpleEasier to useEasier to plancheckDisadvantagesLack of flexibilityIgnores many energy saving strategiesNo trade-offsCannot use for incentive programs that
require performance based reports
AdvantagesFlexibilityTrade-offs galoreCan model wide variety of energy saving featuresand strategiesOutput available for plancheck and other incentiveprogramsDisadvantagesSoftware expenseNot easy to use or learnLarger report/formsMore difficult to plancheck
2010 Energy Code Works Inc.
Building Envelope
Walls, floors, ceiling assemblies
Windows, glass doors, skylights
When required, testing andcertification, & labelingrequirements, where required.
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Building Envelope
Current 2005 PrescriptiveRequirements
2010 Energy Code Works Inc.
Building Envelope
New 2008 PrescriptiveRequirements
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Building Envelope
New 2008 PrescriptiveRequirements
Must use envelope assembliesfrom tables in Residential Appendixto quantify R-value/U-factor forassemblies
2010 Energy Code Works Inc.
Building Envelope
New 2008 PrescriptiveRequirements
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2010 Energy Code Works Inc.
Building Envelope
New 2008 PrescriptiveRequirements
2010 Energy Code Works Inc.
Building Envelope
New 2008 PrescriptiveRequirements
Change from wood framing to metal framing can significantly affect compliance.Wood and metal framing not interchangeableMetal framed construction generally will require a exterior rigid insulating board
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Building Envelope
New 2008 PrescriptiveRequirements
2010 Energy Code Works Inc.
Building Envelope
New 2008 PrescriptiveRequirements
Bottom Line:Prescriptive insulation levels remain essentiallyunchanged from 2005 standards
Big change..Fenestration requirements
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Building Envelope
Current 2005 PrescriptiveRequirements
2010 Energy Code Works Inc.
Building Envelope
New 2008 PrescriptiveRequirements
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Building Envelope
Windows, glass doors, skylights
Two allowable methods for determining window & doorperformance:
NFRC procedures/labels or
Use default tables (116-a & 116-b)
2010 Energy Code Works Inc.
Building Envelope
NFRC tested w/labels
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2010 Energy Code Works Inc.
Building Envelope
2010 Energy Code Works Inc.
Building Envelope
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2010 Energy Code Works Inc.
Building Envelope
Windows, glass doors, skylights
2010 Energy Code Works Inc.
Building Envelope
Default tables approach
Default tables 116-a & 116-b
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Building Envelope
Windows, glass doors, skylights
2008 Package D
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)
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
0.40 U-factor/0.40 SGHC vs.available products
2010 Energy Code Works Inc.
Building Envelope
Windows, glass doors, skylights
0.40 U-factor/0.40 SGHC vs.available products
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2010 Energy Code Works Inc.
Building Envelope
Windows, glass doors, skylights
0.40 U-factor/0.40 SGHC vs.available products
2010 Energy Code Works Inc.
Building Envelope
Windows, glass doors, skylights
0.40 U-factor/0.40 SGHC vs.available products
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2010 Energy Code Works Inc.
Building Envelope
Windows, glass doors, skylights
0.40 U-factor/0.40 SGHC vs.Energy Star requirements
2010 Energy Code Works Inc.
Building Envelope
Windows, glass doors, skylights
Bottom Line:
Prescriptive U-factor requirements almost30% more stringent than 2005 code
2008 Standards will force you to use NFRCLabels
Significant penalty for using default tables
Relatively easy to hit 0.40 UF/SHGC target
Energy Star target of 0.30 UF/SHGC isdriving window manufactures product morethan Californias Title-24
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2010 Energy Code Works Inc.
Building Envelope
When required, where required,testing, certification & labeling
In 2008 code requiredprescriptively in all climate zonesNew, addition & alterations
2010 Energy Code Works Inc.
Building Envelope
When required, where required,testing, certification & labeling
Energy Star Cool Roof does notqualify in California
Must be certified & labeled by theCool Roof Rating Council
Roof tear-offs will trigger coolroof requirement, however.
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2010 Energy Code Works Inc.
Building Envelope
When required, where required,testing, certification & labeling
Tradeoffs to avoid cool roof requirement:
1. Buildings with no ducts in attic or,2. Radiant barrier in the attic or,3. R-30 attic insulation; or,4. If in Climate zones 10, 11, 13, and 14 R-3 or greater roof
deck insulation or,
5. Existing ducts insulation, sealed and HERS duct tested or,6. Use performance approach and utilize trade-offs and
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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2
2010 Energy Code Works Inc.
HVAC
Minimum AFUE, SEER, EER
SEER vs EER
Prescriptive requirementNo prescriptive alternativesHVAC change-outs
Refrigerant Charge MeasurementCooling Coil Airflow
Fat Watt Draw
2010 Energy Code Works Inc.
HVAC
Appliance Efficiency Regulationsset HVAC efficiency minimums inPrescriptive Packages
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2010 Energy Code Works Inc.
HVAC
Prescriptive Packages refer toAppliance Efficiency Regulationsminimums
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 betweenEER and SEER?
Why does it matter?
2010 Energy Code Works Inc.
HVAC
Minimum AFUE, SEER, EER
SEER vs EER
EER is measured at 80 degreesindoor air running continuously
SEER is measured by using theEER and factoring in the same unit
running under a lighter load (80degrees indoor, 82 degreesoutdoor 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 sameSEER to have different EERs
For two units with a given SEER theone with the higher EER will be moreefficient
EERs higher than 10 require HERSverification
Take time to verify SEER andEER
2010 Energy Code Works Inc.
HVAC
Minimum AFUE, SEER, EER
SEER vs EER
Why this matters:
EER higher than 10 will tr igger aHERS credit in the Title-24 compliancecalculations
Will also appear on the CF-1R as a
HERS measure required verificationand 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 remainessentially unchanged from 2005standards. EER more important
Big change..Duct testing,Refrigerant Charge Measurement,
Cooling coil airflow & Fan Watt Draw
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 EERalternatives no longer options toavoid duct sealing & testing
Performance approach is anoption to tradeoff against ductsealing & testing
2010 Energy Code Works Inc.
HVAC
Prescriptive requirementNo prescriptive alternativesHVAC change-outs
HVAC change-outs
Ducts must be sealed and testedunder any of the followingcircumstances:
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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
2010 Energy Code Works Inc.
HVAC
Heating
Cooling
HVAC Equipment Sizing
Heating
The Standards do not set limits on the si zing of heating equipment, but they do
require that heating loads be calculated for new heating systems Acceptable loadcalculation procedures include methods described in the ASHRAE Handbook
Equipment, ASHRAE Handbook Applications, ASHRAE Handbook Fundamentals, SMACNA Residential Comfort System Installation Manual, or ACCAManual J.
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2010 Energy Code Works Inc.
HVAC
Heating
Cooling
HVAC Equipment Sizing
Cooling
Just as for heating equipment, the Standards do not set l imits on the size ofcooling equipment, but they do require that cooling loads be calculated for newcooling systems. Avoiding over sizing is especially important for coolingequipment because efficiency degrades when the system cyc les on and offfrequently.
The Standards offer a compliance credit when the installed air conditioningequipment is sized in accordance with the Reference Residential Appendix RA1Maximum Rated Cooling Capacity for compliance credit sizing calculations. AHERS rater field verification is required to confirm that the install ed equipmentconforms to the sizing criteria as reported on the CF-1R.
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
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
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
All three methods acceptable but must be verified by HERS rater
1. Invasive method (Gauges)2. Non-invasive method (superheat/subcool)
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
HVAC Change-outs
Climate zones 2 and 8-15 new or replacement split a/cunits or heat pumps RCM required with HERS verification
Applies also when components of existing HVAC systemsuch as outdoor condensing unit or indoor coil arereplaced
2010 Energy Code Works Inc.
HVAC
Refrigerant Charge MeasurementCooling Coil AirflowFan Watt Draw
HVAC Change-outs
Climate zones 10-15 when new or replacement spaceconditioning system is installed CCA and FWD requiredwith HERS verification
This is a prescriptive requirement, can be traded-off usingperformance approach
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2010 Energy Code Works Inc.
HVAC
Refrigerant Charge MeasurementCooling Coil AirflowFan Watt Draw
Bottom line
Will require good coordination with HERS rater for all three HERS HVACmeasures. Choice: Invasive (gauges) or non-invasive.
HVAC contractors will need to become familiar with testing procedure forall 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 andpressure access holes w/labels for HERS raters
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.
Residential Lighting
50% RuleHigh EfficacyNew allowances
#1 Bathrooms, Garages, Laundryrooms, closets & utility rooms
#2 Other Rooms
Minimum efficacy
Required controls
2010 Energy Code Works Inc.
Residential Lighting
50% RuleHigh EfficacyNew allowances
50% rule remainsNo limit to kitchen lighting wattsHowever 50% of total installedlighting watts must be high efficacy
High efficacy fixtures switched
separately from incandescent orlow efficacy fixtures
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2010 Energy Code Works Inc.
Residential Lighting
50% RuleHigh EfficacyNew allowances
2010 Energy Code Works Inc.
Residential Lighting
50% RuleHigh EfficacyNew allowances
New allowances1. Additional low efficacy wattage allowance
Only available after 50% efficacy rule met2. Kitchen has manual on vacancy sensors or dimmers3. High efficacy lumenaires and vacancy sensors in garages,
laundry rooms, closets and utility rooms
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2010 Energy Code Works Inc.
Residential Lighting
50% RuleHigh EfficacyNew allowances
New allowancesInternal cabinet lighting allowance
20 watts per linear foot of illuminated cabinet
Must be interior to cabinet and illuminated the inside of cabinet
2010 Energy Code Works Inc.
Residential Lighting
50% RuleHigh EfficacyNew allowances
Kitchen Lighting DocumentationNo more WS-5R (1 page)New form: CF-6R-LTG-01 (3 pages)Includes other rooms, outdoor lighting
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2010 Energy Code Works Inc.
Residential Lighting
50% RuleHigh EfficacyNew allowances
2010 Energy Code Works Inc.
Residential Lighting
New form:CF-4R-LTG-1Notsubmitted at plan-check
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2010 Energy Code Works Inc.
Residential Lighting
CF-4R-LTG-1For 2008notsubmitted atplan checkNow a constructiondocument
2010 Energy Code Works Inc.
Residential Lighting
2005 StandardsWS-5R is currentlysubmitted at plan check
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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
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
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
2010 Energy Code Works Inc.
TDV
Impact of Time Dependant Valuation (TDV)4
Example:SFR residence1800 sq. ft.Package D
2nd Perf RunMultipleOrientations
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2010 Energy Code Works Inc.
TDV
Impact of Time Dependant Valuation (TDV)4
Bottom Line for 2008
Building designs that generate high heating/cooling loads during peakenergy 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 loadsare rewarded greatly
TDV ignored using prescriptive approach in Residential Standardsbreak
Energy Code Works, Inc.
Title-24 Building Energy Standards
Break
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2010 Energy Code Works Inc.
Scope of this Class
New Ventilation Requirements5
New HERS Credits6
New Forms & Registration Requirements7
Q&A8
2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Requirements for local ventilation (bathrooms/kitchens)
100 cfm range hoods/50 cfm for bath fan
Why? Windows not being used for ventilation
All low-rise residential buildings required to
have whole house ventilation
Window operation not a permissible method
Mandatory measure
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2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007 scope:Kitchens/bathrooms have local exhaust vented tooutdoorsClothes dryer vented to outdoorsCombustion appliances properly vented and air systemsdesigned to prevent backdraftingMERV 6 filters in HVAC systemVentilation fans must meet sound requirements
Continuously operation: 1.0 sone
Intermittent fans: 3.0 soneAdditions smaller than 1000 sq. ft. exempt
2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Three generic solutions to meeting outside air ventilationrequirements1. Exhaust Ventilation2. Supply Ventilation3. Combination supply/exhaust
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2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Exhaust ventilation
2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Supply ventilation
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2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Combination supply/exhaust ventilation
2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Ventilation flow rate calculation
One cubic foot per minute (cfm) for each 100 sq. ft. of floorarea plus 7.5 cfm for each occupant. The number ofoccupants = the number of bedrooms plus one person:
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2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Ventilation flow rate calculation
Question:How would you satisfy this 48 cfm ventilation requirement?
2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Ventilation flow rate calculation
Intermittently operating fans will be required to have alarger cfm airflow to makeup for the fewer hours of fanoperation.Required air flow rate can be 10 to 20 times greater whenfans operate less than 6 hours per day.
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2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Intermittent fan f low rate calculation
2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2-2007Controls and Operation
Must have override control readily accessibleIf intermittent fans are used must use timer
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2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2 documentation
What does this mean for the designer?
Note blockCalcsSpecsDetails on HVAC plans if incorporated into HVAC systemCF-6R MECH-5 (at inspection)Who will perform the ventilation calcs? (Title-24 consultant,HVAC designer, architect, etc)
2010 Energy Code Works Inc.
Ventilation
New Ventilation Requirements5
8
ASHRAE 62.2 documentation
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2010 Energy Code Works Inc.
Scope of this Class
New Ventilation Requirements5
New HERS Credits6
New Forms & Registration Requirements7
Q&A8
2010 Energy Code Works Inc.
RefrigerantCharge
Low LeakageAHU
Supply DuctCredits
SupplyDuct
Location
Duct Sealing Sealed and HERS verified less than 6% supply fan f lowChange-outs: 15% or less of fan flow
Conditioned space, buried ducts
Reduced surface area.
NEW CEC certified AHU w/less than 2% leakage.
Duct sealing & testi ng also required.
CHANGED Refrigerant charge verified using one of three methodsInvasive, non-invasive & CID. No TXV to trade against
HERS Measures
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2010 Energy Code Works Inc.
CoolingCapacity
High EER
Fan WattDraw
CCA
CID NEW Charge Indicator Device
NEW Requires air handling units maintain supply airflow greaterthan 350 cfm per nominal ton of cooling capacity across the coil
NEW Requires fan watt draw less than 0.58 watts per cfm
HVAC condenser & coil correctly matched to achieve
high EER (above 10)
Credit for A/C equipment having cooling capacity that meetscalculated maximum cooling load.
HERS Measures
2010 Energy Code Works Inc.
Photovoltaic
QII
EnvelopeSealing
IceStorage
A/C
Evap CooledCondensers
NEW Improves EER, water use limits & duct seali ng, air flow, and
refrigerant charge verification required.
NEW Shifts peak energy use to off-peak hours (Ice Bear)Additional HERS measures required
Sealing, caulking, gaskets. Verified by HERS blower door test.
Framing stage field verification then insulation stage verification.
New QII verification for Spray Polyurethane Foam
Nota Title-24 credit, New Solar Home Program requirement HERS PV verifications required.
HERS Measures
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2010 Energy Code Works Inc.
PhotovoltaicQII
Fan WattDraw
Cooling CoilAirflow
RefrigerantCharge
Duct Sealing
HERS Measures
HERS Measures mostcommonly specified for 2008:
2010 Energy Code Works Inc.
PhotovoltaicQII
Fan WattDraw
Cooling CoilAirflow
RefrigerantCharge
Duct Sealing
HERS Measures
HERS Measures additional benefits
HVAC installation quality control
Most ducts leak better than 25% of supply fanflow (new construction)
Most do not understand ramifications of ductleak (supply side & return side leaks)
Reduces indoor air pollution
Increased HVAC system efficiency
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2010 Energy Code Works Inc.
PhotovoltaicQII
Fan WattDraw
Cooling CoilAirflow
RefrigerantCharge
Duct Sealing
HERS Measures
Duct Sealing benefits
2010 Energy Code Works Inc.
PhotovoltaicQII
Fan WattDraw
Cooling CoilAirflow
RefrigerantCharge
Duct Sealing
HERS Measures
HERS Measures additional benefits
EnergyStar studies verify that over 75% ofinstalled cooling equipment have improperrefrigeration charge
Lowers efficiency by 5 to 20%
Causes premature failure
Most do not understand ramifications of ductleak (supply side & return side leaks)
Reduces indoor air pollution
Increased HVAC system efficiency
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2010 Energy Code Works Inc.
PhotovoltaicQII
Fan WattDraw
Cooling CoilAirflow
RefrigerantCharge
Duct Sealing
HERS Measures
HERS Measures additional benefits
CCA credit addresses poorly design ductsystem, fewer bends, short, direct runs thatmaximize airflowGoal: 350 cfm per ton in cooling modeTest performed by HVAC contractorVerified by HERS rater
2010 Energy Code Works Inc.
PhotovoltaicQII
Fan WattDraw
Cooling CoilAirflow
RefrigerantCharge
Duct Sealing
HERS Measures
HERS Measures additional benefits
Fan Watt Draw also seeks to improve poorlydesign duct system, fewer bends, short, directruns that maximize airflowGoal: 0.58 watts per cfm of airflowTest using watt meter performed by installerVerified by HERS rater
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2010 Energy Code Works Inc.
PhotovoltaicQII
Fan WattDraw
Cooling CoilAirflow
RefrigerantCharge
Duct Sealing
HERS Measures
HERS Measures additional benefits
HVAC installation quality controlFewer than 10% of HVAC systems havepermits pulled30-50% not installed properly
Insulation installation quality control
Compliance failures have led to an estimated20-30% increase in peak energy needed on hotsummer afternoons.
Estimated 30% of energy savings potential ofenergy codes is lost due to non-compliance.
Inadequate understanding of degradation inperformance due to poor installation
2010 Energy Code Works Inc.
Scope of this Class
New Ventilation Requirements5
New HERS Credits6
New Forms & Registration Requirements7
Q&A8
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2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
CF-1R PerformanceMF-1RCF-SR
CF-1R NewCF-1R AdditionCF-1R AlterationMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive Performance Installation
2010 Energy Code Works Inc.
Compliance Forms
CF-1R NewCF-1R AdditionCF-1R AlterationMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
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Compliance Forms
CF-1R NewCF-1R AdditionCF-1R AlterationMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
2010 Energy Code Works Inc.
Compliance Forms
CF-1R NewCF-1R AdditionCF-1R AlterationMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
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Compliance Forms
CF-1R NewCF-1R AdditionCF-1R AlterationMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
2010 Energy Code Works Inc.
Compliance Forms
CF-1R NewCF-1R AdditionCF-1R AlterationMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
Roles & ResponsibilitiesDocumentation AuthorSignature certifies documentation is accurate & completeNot responsible specification of the building design features
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Compliance Forms
CF-1R NewCF-1R AdditionCF-1R AlterationMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
Roles & ResponsibilitiesDesignerResponsible for overall building design
Responsible for specifications on CF-1RSubject to California Business & Professions Code
2010 Energy Code Works Inc.
Compliance Forms
CF-1R NewCF-1R Addition NEWCF-1R Alteration NEWMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
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Compliance Forms
CF-1R NewCF-1R Addition NEWCF-1R Alteration NEWMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
2010 Energy Code Works Inc.
Compliance Forms
CF-1R NewCF-1R Addition NEWCF-1R Alteration NEWMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverage
WS-3R SHGC
Prescriptive
2005 MF-1R 2 pagesCheck boxes
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2010 Energy Code Works Inc.
Compliance Forms
CF-1R NewCF-1R Addition NEWCF-1R Alteration NEWMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
2008 MF-1R 3 pages
2010 Energy Code Works Inc.
Compliance Forms
CF-1R NewCF-1R Addition NEWCF-1R Alteration NEWMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverage
WS-3R SHGC
Prescriptive
2008 MF-1R
Mandatory measures on MF-1R form willconstitute minimum componentperformance specifications even if notcalled out elsewhere on plans
Other measures on CF-1R may supersedeminimum measures on MF-1R form
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2010 Energy Code Works Inc.
Compliance Forms
CF-1R NewCF-1R Addition NEWCF-1R Alteration NEWMF-1RCF-SR Solar Hot WaterWS-1R Thermal MassWS-2R WeightedAverageWS-3R SHGC
Prescriptive
2010 Energy Code Works Inc.
Compliance Forms
CF-1R PerformanceMF-1RCF-SR
Performance
5 pages instead of 3
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2010 Energy Code Works Inc.
Compliance Forms
CF-1R PerformanceMF-1RCF-SR
Performance
Part 2 should befilled out
2010 Energy Code Works Inc.
Compliance Forms
CF-1R PerformanceMF-1RCF-SR
Performance
Electronic signatures will be commonand unavoidable with registration
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2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-6R Installation forms
Reworked significantly
Now include measures previously on MF-1Rand other forms (WS-5R)
Separated into Envelope, Lighting & HVAC
2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-6R Installation forms
Purpose of CF-6R forms?
To verify that the contractor is aware of therequirements of the building energy standardsand they have followed the CEC approvedprocedures for installation
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2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-6R Installation forms
Who fills out CF-6R forms?
General contractor or;Specialty subcontractors
When are they submitted?
Notat plan check
2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-6R Installation forms
Completed and signed CF-6Rs must beposted at building site for review byinspectors. Required for final inspection
Some CF-6R always require HERSverification
Some do not
HERS rater will need the completed CF-6Rforms before they can fi ll out their CF-4Rforms.
When registration is required CF-6Rs must beavailable
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Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-6R example
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2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-6R example
2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-6R example
Contractor responsible for repairs necessary topass HERS verification tests
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Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-6R Installation forms
AlsoThey are legally binding document
2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-6R bottom line:
CF-6R forms a major part of Title-24 compliance now. Thereal teeth in the new code.
Contractors need to be familiar with CF-6R forms and haveinformation gathered to fill out form.
Also will need to review CF-1R during bid process todetermine if any HERS measures will affect their work
Will require coordination between Designer, Title-24consultant and HERS raters
CF-6R forms filled out by hand will be unwieldy because ofrequirements to file electronically
Will need a system to provide documentation package toinspector, HERS rater, & homeowner & registry if necessary
Homeowner receives CF-1R,CF-6R, CF-4R, operation &maintenance information for all features and devices.
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Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-4R Installation forms
Responsibility of HERS Rater
Certificates of Field Verification andDiagnostic Testing
CF-4R filled out by hand not acceptable
Question:Can the homeowner sign the CF-6R form(s)?
2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
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Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
Certificate of Compliance (CF-1R)
Prepared by Title-24 consultant ordesigner
Submitted to plancheck andapproved copy provided to General
Contractor
2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/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 ordesigner
Submitted to plancheck andapproved copy provided to General
Contractor
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Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
Certificate of Verification and Diagnostic (CF-4R)
Comple ted by H ERS Rater Regi ster ed wi th CHEERS or Cal cer tsand 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 ordesigner
Submitted to plancheck andapproved copy provided to GeneralContractor
2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
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Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERS
Installation
CF-4R bottom line:
CF-4R also forms a major part of Title-24compliance now.
Many HERS verifications are now baseline,required on most projects
Contractors will need to know their responsibilitiesrelated to different HERS measures
Contractors need to inspect and test their workHERS raters verifies
Good coordination essential. HERS rater will needto be contacted well ahead of required inspections
Good record keeping crucial
CF-4R major part of utility incentive programs
2010 Energy Code Works Inc.
Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERSRegistration
Registration
Registration
New concept and new requirement
Introduced in stages thru 2010
January 1, 2010 required for low-rise residentialbuildings, multiple orientations , & HERS measures
Starting October 1, 2010 registration required for ALLlow-rise residential buildings with HERS measures
CF-1R, CF-6R, CF-4R required to be submittedelectronically to HERS provider (CHEERS or CalCerts)
Registry available to authorized users of HERS dataregistry
Includes energy consultants, builders, owners,contractors, installers, HERS raters, buildingdepartments, C.E.C.
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Compliance Forms
CF-6R InstallationCertificateCF-4R FieldVerification/HERSRegistration
Registration
Implications:
If registration required building department will requireregisteredcopies of CF-1R , CF-6R, and CF-4R thatdisplay their unique registration number
Contractors may not be set up to submit their CF-6R formselectronically for registration
Can use services of HERS raters to facilitate transmittal ofCF-6R to registry. However contractor is responsible forcontent of CF-6R and must sign. HERS rater cannotcertify 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 criticalUse time left to put into place filing system/record keepingsystem
Registration
2010 Energy Code Works Inc.
Preparation for 1/1/2009
Architects/Designers2
Set up drawing files to accept all forms required on plans
Set up note blocks for ASHRAE 62.2 requirements
Requirement for load calcs should be part of HVAC bid-spec
Window selection cannot be put off until building underconstruction. Using default U-factors/SHGC for plan-checksubmittals will make it difficult if not impossible to comply.
Bring Title-24 consultant on board early in design stage
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Energy Code Works, Inc.
Mark MadisonCEPE, CEA, AEE, HERS Rater,GreenPoint Rater, ResNet Rater, Member CABEC, CHEERS