ENERGY STAR Qualified Homes 2011 Specifications Overview
description
Transcript of ENERGY STAR Qualified Homes 2011 Specifications Overview
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ENERGY STAR Qualified Homes
2011 Specifications
Overview
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ENERGY STAR FOR HOMES GROWTHTHE ROAD TO ONE MILLION HOMES
0
200000
400000
600000
800000
1000000
1200000
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
Column 1
Line 2
NumberLabeledHomes
Year
96 97 98 99 00 0302 04 05 06 0701 08 09
200,000
400,000
600,000
800,000
1,000,000
0
Cumulative
Annual
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0
5
10
15
20
25
2001 2002 2003 2004 2005 2006 2007 2008 2009
1
ENERGY STAR FOR HOMES GROWTHONE IN FIVE HOMES IN 2009
% MarketPenetration
Year
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ENERGY STAR FOR HOMES GROWTHNEW BUILDER PARTNERS PER MONTH
300
250
150
50
200
100
0Before Soft Market After Soft Market
~1,000% Growth!
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CONTEXT: ENERGY STAR vs. CONTEXT: ENERGY STAR vs. GREENGREEN
ENERGY STAR for Homes
Green Programs for
HomesVoluntary
Recognizes BuildersLabel
Web Site, Marketing, Awards
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CONTEXT: ENERGY STAR vs. CONTEXT: ENERGY STAR vs. GREENGREEN
ENERGY STAR for Homes
Green Programs for
HomesVoluntary
Recognizes BuildersLabel
Web Site, Marketing, Awards
Defines EfficientRigorous SpecificationsThird-Party Verified
Offers FlexibilityPointsMultiple Tiers
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‘GREEN’ BEGINS WITH ‘BLUE’
Energy Efficiency•Air Flow
•Thermal Flow•Moisture Flow•Equipment
IndoorEnvironment
•Source Control•Ventilation•Filtration
ResourceEfficiency•Water•Materials•Waste•Recycling•Land•Renewables
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WHY SPECIFICATIONS SO IMPORTANT
A voluntary labeling program that:
Defines Energy EfficientRigorous SpecificationsThird-Party Verified
Recognizes BuildersGovernment-Backed LabelWeb Site, Marketing, Awards
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Control Moisture FlowVapor Bulk
Control Thermal Flow
Defining Truly Energy Efficient
EfficientEquipment
3rd PartyVerification
Control Air Flow
AffordableComfortable
HealthyDurable
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Control Moisture FlowVapor Bulk
Control Thermal Flow
EfficientEquipment
3rd PartyVerification
Control Air Flow
Air Sealing
Tight Ducts
Air Sealing
Tight Ducts
InspectFeatures
TestInfiltration
Air Sealing
Tight Ducts
1996V.1
Low-EWindows
Test DuctLeakage
EfficientHVAC
AffordableComfortable
HealthyDurable
InsulationR-Value
Defining Truly Energy Efficient
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Control Moisture FlowVapor Bulk
Control Thermal Flow
EfficientEquipment
3rd PartyVerification
Control Air Flow
Air Sealing
Tight Ducts
Air Sealing
Tight Ducts
InspectFeatures
TestInfiltration
Air Sealing
Tight Ducts
1996V.1
Low-EWindows
Test DuctLeakage
EfficientHVAC
InsulationAlignment
Air BarriersAir BarriersAir BarriersEfficient
WH SystemEfficient
Lgtg./Appl.Right-Sizing2006V.2
ThermalBypass Chk
AffordableComfortable
HealthyDurable
InsulationR-Value
Defining Truly Energy Efficient
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How we sold 2006 spec,first we asked a question…
What technology will revolutionize the housing
industry?
Hint: it has nothing to do with construction…
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Answer…Low Cost Infrared Cameras
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OBSOLETE COMPETITIONOBSOLETE COMPETITION
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BUILDING SCIENCE RULES TO LIVE BY
Driving Forces Move More to Less:- More Heat to Less Heat- More Pressure to Less Pressure- More Humidity to Less Humidity
Gravity Makes Things Fall
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BUILDING SCIENCE
FIBROUS NSULATION = AIR BARRIER
Resists Heat Flow
Air Flow…need Air Barrier…(any solid material that blocks air flowincluding sealing at edges and seams)…on all six sides……in direct contact with insulation (alignment)
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BUILDING SCIENCE INSULATION IS NOT AN AIR BARRIER
Courtesy of Blue Grass
Energy
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BUILDING SCIENCE
WHY COMPLETE AIR BARRIER
7070o o FF
7070o o FF
3030o o FF
5050o o FF 3030o o FF
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INSET STAPLING = MISALIGNMENT
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INSET STAPLING = MISAGLIGNMENT
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INSULATED FLOOR OVER GARAGE
Garage Ceiling
Conditioned Room
Hot day
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CANTILEVERED FLOOR PROBLEM
Courtesy of Fort Collins Utilities
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Courtesy: Tremco Barrier Solutions, Inc.Courtesy: Tremco Barrier Solutions, Inc.
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PROPERLY INSTALLED INSULATION
SLAB EDGE INSULATION
R-10 (typ. 2 in.) in Zones 4 and above Downward from top of slab:
- min. 24” (Zones 4 and 5); 48” (Zones 6, 7, and 8)
Insulation can be run:- vertical; horizontally under the slab; or out from building
flashing
protectionboard
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GARAGE/CANTILEVER BAND JOISTS
Gaps at endsGaps at ends
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BAND JOIST BLOCKING
Filler blocking much harder shape with Engineered lumber
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Now it’s time for 2011 spec…
What value proposition will make used and minimum code homes
even more obsolete?
Complete Systems
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Control Moisture FlowVapor Bulk
Control Thermal Flow
EfficientEquipment
3rd PartyVerification
Control Air Flow
Air Sealing
Tight Ducts
Air Sealing
Tight Ducts
InspectFeatures
TestInfiltration
Air Sealing
Tight Ducts
1996V.1
Low-EWindows
Test DuctLeakage
EfficientHVAC
InsulationAlignment
Air BarriersAir BarriersAir BarriersEfficient
WH SystemEfficient
Lgtg./Appl.Right-Sizing2006V.2
ThermalBypass Chk
Ventilation
Dehumid. inHot/Humid
InsulationInstallation
PressureBalancing
Min.ThermalBridging
HVACQuality Inst.
2011V.3
Water Man.Construction
ThermalEnclos. ChkHVAC Sys.
QI ChkWater Man.System Chk
AffordableComfortable
HealthyDurable
InsulationR-Value
Defining Truly Energy Efficient
BuildingMaterials
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ENERGY STAR Reference
Design
COMPLIANCE OPTIONS
PERFORMANCE VS. PRESCRIPTIVE
or
PrescriptivPrescriptive Pathe Path
[only homes [only homes << Benchmark CFA]Benchmark CFA]
PerformancPerformance Pathe Path[all homes][all homes]
MandatorMandatoryy
ChecklistsChecklists::
•Thermal Thermal Enclosure Enclosure
SystemSystem•HVAC System HVAC System
Quality InstallationQuality Installation•Water Managed Water Managed
Construction Construction SystemSystem
+
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Rated Home withPref.Measures< Target Score
Size Adjustment= ES HERS
Index Target Score
COMPLIANCE OPTIONS
PERFORMANCE VS. PRESCRIPTIVE
or
PrescriptivPrescriptive Pathe Path
[only homes [only homes << Benchmark CFA]Benchmark CFA]
Performance Path[all homes]
Apply to Rated Home w/ HERS Software= HERS Index Target Score
ENERGY STAR Reference
Design
+
Mandatory
Checklists:
•Thermal Enclosure
System•HVAC System
Quality Installation•Water Managed
Construction System
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Rated Home withPref.Measures< Target Score
Size Adjustment= ES HERS
Index Target Score
COMPLIANCE OPTIONS
PERFORMANCE VS. PRESCRIPTIVE
or
PrescriptivPrescriptive Pathe Path
[only homes [only homes << Benchmark CFA]Benchmark CFA]
Performance Path[all homes]
Apply to Rated Home w/ HERS Software= HERS Index Target Score
ENERGY STAR Reference
Design
+
Mandatory
Checklists:
•Thermal Enclosure
System•HVAC System
Quality Installation•Water Managed
Construction System
Likely to be automated by software
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ENERGY STAR REFERENCE DESIGN
Heating and Cooling Equipment: ENERGY STAR Min. Efficiency [climate based] > ENERGY STAR for Heat Pumps in Cold Climates
Envelope Window and Doors Tight Construction [1 ach tighter than ENERGY STAR 2006]
Insulation Levels > 2009 IECC Properly Installed Insulation [RESNET Grade 1]
ENERGY STAR Window [2009 IECC min w/Performance Path]
Radiant Barrier at Roof if Ducts in Attic [CZ 1-3]
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ENERGY STAR REFERENCE DESIGN
Water Heating: Increased Efficiency [based on tank size] Direct- or Power-Vent if in Pressure Boundary
Thermostats and Ductwork: Programmable Thermostat R-8 Insulation for Ducts in Unconditioned Attics 6 cfm/100 sf Total Duct Leakage 4 cfm/100 sf Duct Leakage to Outdoors
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ENERGY STAR REFERENCE DESIGN
Lighting and Appliances: ENERGY STAR Qualified Appliances and Fans ENERGY STAR Qualified Lighting 80% of
Fixtures
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Thermal EnclosureSystem:•Air Leakage•Insulation R-Value•Insulation Installation•Air Barriers•Thermal Bridging•High-Perf. Windows
Water ManagementSystem:•Roof Membranes•Flashing•WRB’s•Fabric Filters•Capillary Breaks•Drainage Layer
COMPLETING SYSTEMS: CHECKLISTS
HVAC SystemQuality Installation:•Efficient Equipment•Right-Sizing•Air Distribution•Refrigerant Charge•Duct Installation•Pressure Balancing•Ventilation•Filtration
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TEST PLUS INSPECT BIG HOLES
Chases
Cracks: Window Openings Door Openings Sill Plates
AccessPanels
Penetrations: Ceiling Fixtures Vents Plumbing
Drywall atTop Plate
Ducts
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BYPASS AT WALL/ATTIC INTERFACE
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WALL/ATTIC INTERFACE DETAIL
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Void
Compression
Gap
Misalignment
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0 1 2 3 4 5 60
5
10
15
20
25
30
35
40
EFFECT OF GAPS AND SPACES ON BATT INSULATION EFFECTIVENESS
Percent of Voids in Insulation
Net Effective R-Value
Source: Insulate and Weatherize by Bruce Harley, 2002
R-11
R-19
R-30
R-38
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Spray Foam
PROPER INSULATION: BAND JOISTS
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SIP Panel
PROPER INSULATION: BAND JOISTS
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THERMAL BRIDGING
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Courtesy of Building Science Corp.
ADVANCED FRAMING
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RIGID INSULATION SHEATHING
Courtesy of Building Science Corp.
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STRUCTURAL INSULATION SHEATHING
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ADVANCED WALL SYSTEMS
SIPs
ICF
DoubleWall
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RAISED HEEL TRUSSES
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RAISED PLATFORM FRAMING
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Thermal Enclosure SystemValue Proposition
Visibly better quality
Superior comfort and health
Future resale value
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Thermal EnclosureSystem:•Air Leakage•Insulation R-Value•Insulation Installation•Air Barriers•Thermal Bridging•High-Perf. Windows
Water ManagementSystem:•Roof Membranes•Flashing•WRB’s•Fabric Filters•Capillary Breaks•Drainage Layer
COMPLETING SYSTEMS: CHECKLISTS
HVAC SystemQuality Installation:•Efficient Equipment•Right-Sizing•Air Distribution•Refrigerant Charge•Duct Installation•Pressure Balancing•Ventilation•Filtration
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6
7
8
9
10
11
12
13
14
11 12 13 14 15
Rated SEER
Typical Installation
HVAC SYSTEM QUALITY INSTALLATION
Fie
ld A
dju
sted
SE
ER
Courtesy of Advanced Energy Corp.
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6
7
8
9
10
11
12
13
14
11 12 13 14 15
Rated SEER
Typical Installation
Correct Flow 0.5Proper Charge 1.5
Sized Right .75Airtight Ducts 2.0
Courtesy of Advanced Energy Corp.
Fie
ld A
dju
sted
SE
ER
HVAC SYSTEM QUALITY INSTALLATION
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Equipment (ACCA Manual J/S)Ducts (ACCA Manual D)
Flow Across CoilRoom-by-Room Air Flow
Static Pressure
TestingTXV Valve
Matched ComponentsSensible Heat Ratio
HV
AC
C
on
tracto
r
Duct InstallationR-8 Ducts in Attic
Leakage to Outdoors and TotalPressure Balancing
Right-Sizing
Equipment Selection
Air Distribution
Refrigerant Charge
Duct Installation
HVAC QUALITY INSTALLATIONR
ate r
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Exit grille is over here !
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PRESSURE BALANCING: PROBLEM
Courtesy of Building Science Corp.
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PRESSURE BALANCING: SOLUTIONS
JUMP DUCTTRANSFER GRILLE
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WHOLE-HOUSE VENTILATION
FRESH AIR DAMPER
DUCTED FRESH AIR SUPPLYCONTINUOUS EXHAUST
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WHOLE-HOUSE VENTILATION
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WHOLE-HOUSE VENTILATION
ERV AND HRV
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SPOT VENTILATION
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HVAC System Quality InstallationValue Proposition
Engineered Comfort- Thermal Control- Humidity Control- Noise Control
Assured Fresh Air Filtration that Works
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Thermal EnclosureSystem:•Air Leakage•Insulation R-Value•Insulation Installation•Air Barriers•Thermal Bridging•High-Perf. Windows
Water ManagementSystem:•Roof Membranes•Flashing•WRB’s•Fabric Filters•Capillary Breaks•Drainage Layer
COMPLETING SYSTEMS: CHECKLISTS
HVAC SystemQuality Installation:•Efficient Equipment•Right-Sizing•Air Distribution•Refrigerant Charge•Duct Installation•Pressure Balancing•Ventilation•Filtration
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WATER MANAGED ROOFS
HEAVY BITUMINOUS MEMBRANE AT EAVES AND VALLEYS
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WATER MANAGED CONSTRUCTION
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WATER MANAGED ROOFS
ROOF FLASHING DETAILS
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WATER MANAGED WALL PROBLEM
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WATER MANAGED WALLS
DRAINAGE PLANE DESIGNDRAINAGE PLANE DESIGN
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WATER MANAGED WALLS
DRAINAGE PLANE DESIGN
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WINDOW FLASHING PROBLEM
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WATER MANAGED CONSTRUCTION
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WATER MANAGED WALLS
BEST PRACTICE INSTALLATION
WINDOW/DOOR PAN FLASHING
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WATER MANAGED WALLS
WINDOW/DOOR PAN FLASHING
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CONTROLLING MOISTURE FLOW: BULK MOISTURE CAPILLARY BREAKS, FABRIC FILTER
FOUNDATION DRAINAGE SYSTEM WITH CAPILLARY BREAKS
Poly vapor retarder/capillary break
Course gravel granular drainage
Perforated drainage pipe in gravel with fabric filter
Pipe connection to granular drainage
Free-draining back-fill
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CONTROLLING MOISTURE FLOW: BULK MOISTURE CAPILLARY BREAKS
POLY UNDER SLABVAPOR AND RADON BARRIER
UNVENTED CRAWLSPACE
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Water Management System Value Proposition
Better protection for largest investment
Lower maintenance
Healthier home
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Thermal EnclosureSystem:•Air Leakage•Insulation R-Value•Insulation Installation•Air Barriers•Thermal Bridging•High-Perf. Windows
Water ManagementSystem:•Roof Membranes•Flashing•WRB’s•Fabric Filters•Capillary Breaks•Drainage Layer
QUESTION: ARE COMPLETE SYSTEMS BETTER FOR BUSINESS?
HVAC SystemQuality Installation:•Efficient Equipment•Right-Sizing•Air Distribution•Refrigerant Charge•Duct Installation•Pressure Balancing•Ventilation•Filtration
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Answer…
Yes… if making 90% of competition
obsolete is good for business…
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But…better is not good enough!!!
You have to back up
and sell compelling
value propositions.
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Better is Not Good Enough… You Have to Sell ENERGY STAR
Label Every Home Train Sales Agents Hold Agents Accountable Create ‘Value’ Experiences
And Remember…
Design & LocationTrump
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ENERGY STAR Qualified Homes
2011 Specification:
Where Go From Here?
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ENERGY STAR CONCEPT HOME SPEC
ENERGY STAR 2011 Specifications EPA Indoor Air Plus Advanced Technologies:
– Insulation Min. 50% > 2009 IECC– Air-Tightness Min. 50% < 2006 ENERGY
STAR– Ducts Inside Conditioned Space– Advanced ‘Best in Class’ Windows– ‘Best in Class’ HVAC Equipment– ENERGY STAR Water Heating
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RenewablePower
(Purchase orOn-site)
OccupantBehavior
Advanced Design
Advanced Technologies
ENERGY STAR
for Homes2011
Draft Specs
PATH TO NO/LOW CARBON
EPA Indoor airPlus
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2011 SPEC/CONCEPT HOME TIMELINE
Jan. 1 2011
Jan. 1 2012
Transition
Perf. or Prescriptive+ Air Barriers/Sealing
Other ChecklistsCompl./Not Enforced
Old Label Unless Comply
Full Force
Perf. or Prescriptive
+ All Mandatory Checklists
Only New Label
Jan. 12010
Jan. 1 2013
Release Final
~March w/New Label
Field GuidesNationwide Training
New QA Requirements
Appraisal, Mortgage, Insurance Letter
Final Spec/Pilotwith New Label
Fine TuningVirtual Tour Web Site
Fine TuningVirtual Tour Web Site
ENERGY STAR Qualified Homes 2011 Specifications
ENERGY STAR Concept Home
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HOW TO GET MORE INFORMATION
On the Web at:http://www.energystar.gov/homes