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Transcript of Helping Massachusetts Municipalities Create a Greener Energy Future Code Informational Session...
Helping Massachusetts Municipalities Create a Greener Energy Future
Code Informational Session
November 13, 2013
Introduction to the Introduction to the
IECC 2012 Energy IECC 2012 Energy CodeCode
AgendaAgenda
The wonderful world of The wonderful world of AcronymsAcronyms
ASHRAE American Society of Heating, Refrigeration and Air-Conditioning Engineers
ICC International Codes Council
IECC International Energy Conservation Code
IRC International Residential Code
DOER Department of Energy Resources
HERS Home Energy Rating
DOE Department of Energy
IECC and ASHRAE CodesIECC and ASHRAE Codes
ICC & ASHRAE develop model building codes and standards for the US.
ICC: publishes IECC energy code 3 year cycle IECC 2009, IECC 2012, IECC 2015
ASHRAE: publishes 90.1 standard 3 year cycle 90.1-2007, 90.1-2010
The World of CodesThe World of Codes 19801980’’s through 2006s through 2006
Minimum codes were truly minimalMinimum codes were truly minimal DOE pushed for marginal improvements (1% to 3% DOE pushed for marginal improvements (1% to 3%
per cycle)per cycle) DOE proposed (successfully) a major rewrite of the DOE proposed (successfully) a major rewrite of the
IECC in 2004 (became the 2006 IECC)—emphasis IECC in 2004 (became the 2006 IECC)—emphasis was format, not stringencywas format, not stringency
2009 to present2009 to present The world has changedThe world has changed
ICC/DOE working from two goalsICC/DOE working from two goals 30% improvement in 2012 IECC (relative to 2006)30% improvement in 2012 IECC (relative to 2006) 50% improvement in 2015 IECC (relative to 2006)50% improvement in 2015 IECC (relative to 2006)
What in the world has What in the world has changed?changed?
What is driving the changes to the code:What is driving the changes to the code: Public interestPublic interest Political willPolitical will Pull at ICCPull at ICC
What in the world has changed?What in the world has changed? More efficiency making it into codesMore efficiency making it into codes More detail/complexity being pushed onto code More detail/complexity being pushed onto code
officialsofficials More need for expertise and analysis tools in code More need for expertise and analysis tools in code
processprocess Less distinction between code, beyond-code Less distinction between code, beyond-code
programsprograms
Massachusetts Energy Massachusetts Energy Code HistoryCode History
66thth edition of the building code had a MA specific energy code edition of the building code had a MA specific energy code
77thth edition adopted IECC 2006 edition adopted IECC 2006 Commercial bldgs. ASHRAE 90.1-2004 Commercial bldgs. ASHRAE 90.1-2004
88thth edition adopted IECC 2009 on July 1, 2010 edition adopted IECC 2009 on July 1, 2010 Roughly 10-15% more efficient than IECC 2006Roughly 10-15% more efficient than IECC 2006
Commercial bldgs. ASHRAE 90.1-2004 remainsCommercial bldgs. ASHRAE 90.1-2004 remains
Also in 2010 the edition of the Also in 2010 the edition of the ““Stretch CodeStretch Code”” appendix appendix
IEC C 2012 was adopted on 7/1/2013IEC C 2012 was adopted on 7/1/2013
Designed to be 30% better than IECC 2009Designed to be 30% better than IECC 2009
Stretch CodeStretch Code
IECC 2015 coming soon….IECC 2015 coming soon….
IECC 2012IECC 2012
What was added with What was added with IECC 2009IECC 2009
Lighting added to IECC scope (at Lighting added to IECC scope (at least 50% of lamps must be ―high least 50% of lamps must be ―high efficacy)efficacy)
Mandatory duct system pressure Mandatory duct system pressure testtest
Insulation R-Values increasesInsulation R-Values increases No equipment-envelope trade-offsNo equipment-envelope trade-offs 12% to 15% better than 2006 IECC12% to 15% better than 2006 IECC
2012 IECC –Overview2012 IECC –Overview
Approximately 30% more efficient Approximately 30% more efficient than the 2006 IECCthan the 2006 IECC
Now constitutes (by reference) the Now constitutes (by reference) the energy chapter of the International energy chapter of the International Residential Code (IRC)Residential Code (IRC)
Retains 2009 IECCRetains 2009 IECC’’s prohibition on s prohibition on envelope-equipment tradeoffsenvelope-equipment tradeoffs
Contains a few major and many minor Contains a few major and many minor changeschanges
Structure of the 2012 Structure of the 2012 IECCIECC
Ch. 1 Scope and Application / Ch. 1 Scope and Application / Administrative and EnforcementAdministrative and Enforcement
Ch. 2 DefinitionsCh. 2 Definitions Ch. 3 General RequirementsCh. 3 General Requirements
Ch. 4 Residential Energy Ch. 4 Residential Energy EfficiencyEfficiency
Ch. 5 Referenced StandardsCh. 5 Referenced Standards IndexIndex
Scope of Section R101Scope of Section R101 Defines Residential Buildings as:Defines Residential Buildings as:
One- and two-family dwellings, townhouses of One- and two-family dwellings, townhouses of any size and R-2, R-3, R-4 ≤ 3 storiesany size and R-2, R-3, R-4 ≤ 3 stories
All buildings that are not All buildings that are not ““residentialresidential”” by by definition are definition are ““commercialcommercial””
Includes additions, alterations, renovations Includes additions, alterations, renovations and repairsand repairs
Existing buildings Existing buildings Buildings designated as historic Buildings designated as historic Very low energy use buildings [<3.4 Btu/h-ft2 or Very low energy use buildings [<3.4 Btu/h-ft2 or
1 watt/ft2]1 watt/ft2]
Scope Section R101- Scope Section R101- AdditionsAdditions
Treat as a stand-alone buildingTreat as a stand-alone building Additions must meet the prescriptive Additions must meet the prescriptive
requirements in Table 402.1.1 (or U-requirements in Table 402.1.1 (or U-factor or total UA alternatives)factor or total UA alternatives)
Scope Section - Scope Section - Additions, Alterations, Additions, Alterations, Renovations, RepairsRenovations, Repairs
Code applies to any new constructionCode applies to any new construction Unaltered portion(s) do not need to Unaltered portion(s) do not need to
complycomply Additions can comply alone or in Additions can comply alone or in
combination with existing buildingcombination with existing building Replacement fenestration that Replacement fenestration that
includes both glazing and sash must includes both glazing and sash must meetmeet U-factors in all Climate Zones 2-8U-factors in all Climate Zones 2-8
Climate Zones for the Climate Zones for the 2012 IECC2012 IECC
Scope Section R101 - Additions, Scope Section R101 - Additions, Alterations, Renovations, Alterations, Renovations,
Repairs-ExceptionsRepairs-Exceptions Storm windows over existing fenestrationStorm windows over existing fenestration Glass-only replacementsGlass-only replacements Exposed, existing ceiling, wall or floor cavities if already filled Exposed, existing ceiling, wall or floor cavities if already filled
with insulationwith insulation Where existing roof, wall or floor cavity isnWhere existing roof, wall or floor cavity isn’’t exposedt exposed Reroofing for roofs where neither sheathing nor insulation Reroofing for roofs where neither sheathing nor insulation
exposedexposed Insulate above or below the sheathingInsulate above or below the sheathing Roofs without insulation in the cavityRoofs without insulation in the cavity Sheathing or insulation is exposedSheathing or insulation is exposed Lighting alterations if:Lighting alterations if:
<50% of luminaries in a space are replaced<50% of luminaries in a space are replaced Only bulbs and ballasts within existing luminaries are Only bulbs and ballasts within existing luminaries are
replaced (provided installed interior lighting power isnreplaced (provided installed interior lighting power isn’’t t increased)increased)
Scope Section R101 - Scope Section R101 - Space ConditioningSpace Conditioning
Any non-conditioned space that Any non-conditioned space that is altered to become conditioned is altered to become conditioned space shall be required to be space shall be required to be brought into full compliance with brought into full compliance with this codethis code
Examples:Examples: Converting a garage to a family Converting a garage to a family
roomroom Heating an unfinished basementHeating an unfinished basement
Scope Section R101 - Scope Section R101 - Mixed Use BuildingsMixed Use Buildings
Treat the residential occupancy Treat the residential occupancy under the applicable residential codeunder the applicable residential code
Treat the commercial occupancy Treat the commercial occupancy under the commercial codeunder the commercial code
Overview of Code Overview of Code StructureStructure
Climate-Specific Climate-Specific Requirements:Requirements:
RoofsRoofs Above grade wallsAbove grade walls FoundationsFoundations BasementsBasements SlabsSlabs CrawlspacesCrawlspaces Skylights, Skylights,
windows, and windows, and doorsdoors
Mandatory Requirements Mandatory Requirements (apply everywhere):(apply everywhere):
Infiltration controlInfiltration control Duct insulation, Duct insulation,
sealing, and testingsealing, and testing HVAC controlsHVAC controls Piping InsulationPiping Insulation Equipment sizingEquipment sizing DampersDampers LightingLighting
Overview of IECC 2012 Overview of IECC 2012 Residential Code Residential Code
RequirementsRequirementsFocus is on: Focus is on: Building envelope ceilings, walls, windows, floors, foundationsBuilding envelope ceilings, walls, windows, floors, foundationsSets insulation and fenestration levels, and solar heat gain Sets insulation and fenestration levels, and solar heat gain coefficientscoefficientsInfiltration control - caulk and seal to prevent air leaks, and testInfiltration control - caulk and seal to prevent air leaks, and testDucts, air handlers, filter boxes – seal, insulate, and testDucts, air handlers, filter boxes – seal, insulate, and testLimited space heating, air conditioning, and water heating Limited space heating, air conditioning, and water heating requirementsrequirementsFederal law sets most equipment efficiency requirements, not Federal law sets most equipment efficiency requirements, not the I-codesthe I-codesNo appliance requirementsNo appliance requirementsLighting equipment – 75% of lamps to be high-efficacy lamps or Lighting equipment – 75% of lamps to be high-efficacy lamps or 75% of lighting fixtures to have only high-efficacy lamps75% of lighting fixtures to have only high-efficacy lamps
ComplianceComplianceIECC TerminologyIECC TerminologyPrescriptive, UA/U-Factor and PerformancePrescriptive, UA/U-Factor and PerformanceMandatory requirementsMandatory requirements
Required and cannot be traded down, even Required and cannot be traded down, even in the simulated performance pathin the simulated performance path
Some elements have Some elements have ““hard limitshard limits””aka, aka, ““trade-trade-off limitsoff limits””
a prescriptive requirement that can only a prescriptive requirement that can only be traded so farbe traded so far
performance requirements can only be performance requirements can only be traded so fartraded so far
IECC Compliance - Three IECC Compliance - Three OptionsOptions
Code Compliance ToolsCode Compliance Tools
Overview of the 2012 Overview of the 2012 Energy CodeEnergy Code
The 2012 code requires a better The 2012 code requires a better envelope, insulation, ducts, envelope, insulation, ducts,
windows, mechanical and more windows, mechanical and more efficient lighting than the 2009 efficient lighting than the 2009
code.code.
2012 IECC Major 2012 IECC Major ChangesChanges
Duct leakage rates loweredDuct leakage rates lowered Domestic hot water piping must be eitherDomestic hot water piping must be either
Insulated to R3, orInsulated to R3, or Short and skinny (i.e., exempted lengths Short and skinny (i.e., exempted lengths
depend on diameter)depend on diameter) Eliminated ―leakage to outdoors option for Eliminated ―leakage to outdoors option for
ductsducts From 12 to 4 CFM/100sf CFA (after From 12 to 4 CFM/100sf CFA (after
construction)construction) From 6 to 4 CFM/100sf CFA (at rough-in)From 6 to 4 CFM/100sf CFA (at rough-in)
Various R-value/U-factor/SHGC improvementsVarious R-value/U-factor/SHGC improvements
2012 IECC Major 2012 IECC Major ChangesChanges
New mandatory New mandatory whole-house whole-house pressure test pressure test (blower door) with (blower door) with stringent required stringent required leakage ratesleakage rates Zones 3-8: ≤ 3 ACH Zones 3-8: ≤ 3 ACH
@50 Pa@50 Pa Address fireplaces Address fireplaces
and recessed lighting and recessed lighting fixturesfixtures
Air Tightness Air Tightness RequirementsRequirements
ComplianceCompliance The 2012 code provides a lot of leeway to the local The 2012 code provides a lot of leeway to the local
inspector; according to the code, inspector; according to the code, ““Where required Where required by the code official, an approved third party shall by the code official, an approved third party shall inspect all components and verify compliance.inspect all components and verify compliance.””
Reference Table R402.4.1.1 for requirementsReference Table R402.4.1.1 for requirements http://publicecodes.cyberregs.com/icod/iecc/2012/icod_ie
cc_2012_re4_sec002_par027.htm
Building Envelope Building Envelope Specific RequirementsSpecific Requirements
Building Envelope Building Envelope consists of:consists of:FenestrationFenestrationCeilingsCeilingsWallsWallsAbove gradeAbove gradeBelow gradeBelow gradeMass wallsMass wallsFloorsFloorsSlabsSlabsCrawlspacesCrawlspaces
2012 IECC –Major 2012 IECC –Major Prescriptive Envelope Prescriptive Envelope
ChangesChanges
Insulation VerificationInsulation Verification R-values are to be printed on the batt insulation or rigid R-values are to be printed on the batt insulation or rigid
foam board.foam board. Blown-in insulation must have an insulation certificate Blown-in insulation must have an insulation certificate
at or near the opening of the attic.at or near the opening of the attic. The certificate should include:The certificate should include:
R-value of installed thicknessR-value of installed thickness Initial installed thicknessInitial installed thickness Installed densityInstalled density Settled thickness/settled R-valueSettled thickness/settled R-value Coverage areaCoverage area Number of bags installedNumber of bags installed
Insulation markers must be installed every 300 square Insulation markers must be installed every 300 square feet and be marked with the minimum installed feet and be marked with the minimum installed thickness and affixed to the trusses or joists.thickness and affixed to the trusses or joists.
2012 IECC-Fenestration 2012 IECC-Fenestration ChangesChanges
Mandatory Requirements Mandatory Requirements Mechanical SystemsMechanical Systems
Controls-At least one programmable thermostat/dwelling Controls-At least one programmable thermostat/dwelling unitunit
Heat pump supplementary heatHeat pump supplementary heat DuctsDucts
Sealing (Mandatory)Sealing (Mandatory) Insulation (Prescriptive)Insulation (Prescriptive)
HVAC piping insulationHVAC piping insulation Circulating hot water systemsCirculating hot water systems VentilationVentilation DampersDampers Equipment sizing-Heating and cooling equipment shall be Equipment sizing-Heating and cooling equipment shall be
sized according to Manual S based on loads calculated sized according to Manual S based on loads calculated according to Manual Jaccording to Manual J
Pools and in ground permanently installed spasPools and in ground permanently installed spas Snow melt controlsSnow melt controls
Duct Sealing and Duct Sealing and InsulationInsulation
Duct Sealing Duct Sealing Mandatory test 3 cfm Mandatory test 3 cfm
ACH@50ACH@50 Rough in and post Rough in and post
construction testsconstruction tests Adopts testing widely used Adopts testing widely used
by Stretch Code / Energy by Stretch Code / Energy Star HomesStar Homes
Not required if located Not required if located within conditioned spacewithin conditioned space
Framing cavities cannot Framing cavities cannot be used as ducts or be used as ducts or plenumsplenums
Duct InsulationDuct Insulation Supply ducts in attics: R-8 (Attic)Supply ducts in attics: R-8 (Attic) All other ducts: R-6 (Basement, All other ducts: R-6 (Basement,
Crawlspace, Exterior Wall,)Crawlspace, Exterior Wall,)
Lighting EquipmentLighting Equipment
A minimum of 75% of the lamps in A minimum of 75% of the lamps in permanently installed lighting fixtures permanently installed lighting fixtures shall be high-efficacy lamps or 75% of shall be high-efficacy lamps or 75% of permanently installed lighting fixtures permanently installed lighting fixtures to contain only high efficacy lamps.to contain only high efficacy lamps.
““Lamps in fixturesLamps in fixtures”” Exception:Exception:
Low-voltage lightingLow-voltage lighting Use specified lightingUse specified lighting
High Efficacy Lighting High Efficacy Lighting and Complianceand Compliance
The residential lighting provisions in the 2012 IECC The residential lighting provisions in the 2012 IECC are relatively simple. are relatively simple. At least 75% of the lamps in permanent light At least 75% of the lamps in permanent light
fixtures must be high-efficacy, defined as:fixtures must be high-efficacy, defined as: T8 or smaller-diameter linear fluorescent lamps, T8 or smaller-diameter linear fluorescent lamps, Or lamps such as CFLs, LEDs or Pin Based Or lamps such as CFLs, LEDs or Pin Based
Lamps with a minimum efficacy of:Lamps with a minimum efficacy of: 40 lumens/W for <15W40 lumens/W for <15W 50 lumens/W for 16-40W 50 lumens/W for 16-40W 60 lumens/W for >40W lamps60 lumens/W for >40W lamps
Chandelier exampleChandelier example
VentilationVentilation
The building shall be provided with The building shall be provided with ventilation that meets the ventilation that meets the requirements of the IRC, IMC, or requirements of the IRC, IMC, or other approved ventilation.other approved ventilation.
Minimum efficacy:Minimum efficacy: Range hoods 2.8 cfm/wattRange hoods 2.8 cfm/watt In-line fans 2.8 cfm/wattIn-line fans 2.8 cfm/watt Bathroom fan (10-89 cfm) 1.4 cfm/wattBathroom fan (10-89 cfm) 1.4 cfm/watt Bathroom fan (90+ cfm) 2.8 cfm/wattBathroom fan (90+ cfm) 2.8 cfm/watt
What about mechanical What about mechanical ventilation?ventilation?
Although the 2012 IECC includes provisions to improve Although the 2012 IECC includes provisions to improve a homea home’’s air tightness, it provides little on whole house s air tightness, it provides little on whole house ventilation, however the 2012 IRC does include ventilation, however the 2012 IRC does include requirements for mechanical ventilation.requirements for mechanical ventilation. A typical home will require about 15 cfm per person of A typical home will require about 15 cfm per person of
fresh outdoor air to be distributed by continuous fresh outdoor air to be distributed by continuous mechanical ventilation to meet the requirements of the mechanical ventilation to meet the requirements of the code.code.
The new code requires homes in zone 5 achieve 3 ach50, The new code requires homes in zone 5 achieve 3 ach50, the code effectively mandates a whole-house mechanical the code effectively mandates a whole-house mechanical ventilation system.ventilation system.
This can be accomplished with a centrally located quiet This can be accomplished with a centrally located quiet exhaust fan, an interconnected system to the air handler, exhaust fan, an interconnected system to the air handler, HRV/ERV or a combination of devices.HRV/ERV or a combination of devices.
Eave BafflesEave Baffles For air permeable For air permeable
insulations in vented insulations in vented attics, baffleattics, baffle
Installed adjacent to Installed adjacent to soffit and eave ventssoffit and eave vents
To maintain an To maintain an opening ≥ size of ventopening ≥ size of vent
To extend over top of To extend over top of attic insulationattic insulation
May be of any May be of any solid materialsolid material
Stretch Code vs. IECC Stretch Code vs. IECC ComparisonComparison
Typical Existing Home
Std New Home IECC 2006
IECC 2012~ HERS 70
IECC 2009 ~ HERS 90
Stretch Code < 3000 sq ft - HERS 70 > 3000 sq ft - HERS 65
Residential IncentivesResidential Incentives Almost the same as the Stretch Code/IECC 2012Almost the same as the Stretch Code/IECC 2012
Approx 30% of new homes in MA Approx 30% of new homes in MA
Builder incentives/rebates Builder incentives/rebates $750 - $7000 for SFD$750 - $7000 for SFD $350 - $4,000 for MF$350 - $4,000 for MF
HERS ratersHERS raters $700 - $900 SFD$700 - $900 SFD $250 - $550 MF$250 - $550 MF
Additional Equipment RebatesAdditional Equipment Rebates Appliances – up to $50 (low income)Appliances – up to $50 (low income) Heating – up to $1,500Heating – up to $1,500 Water Heating – up to $800Water Heating – up to $800 Cooling – up to $500Cooling – up to $500 Lighting – free CFLsLighting – free CFLs
Massachusetts Residential New Construction Program
IECC 2012 Bottom Line IECC 2012 Bottom Line Code Compliance Code Compliance
Every new home built will need to be Every new home built will need to be tested with a blower door, have a tested with a blower door, have a strategy to stop thermal bridging, strategy to stop thermal bridging,
need more insulation, a tighter need more insulation, a tighter envelope, better windows, tighter envelope, better windows, tighter
ducts, right sized mechanical systems, ducts, right sized mechanical systems, more efficient lighting and mechanical more efficient lighting and mechanical
ventilation.ventilation.
Stretch Code Stretch Code Appendix 120.aaAppendix 120.aa
What is the Stretch Code?What is the Stretch Code? Affects the energy code onlyAffects the energy code only Amendment to the MA base energy codeAmendment to the MA base energy code
Residential Construction:Residential Construction: 15-20% more energy efficient15-20% more energy efficient
Commercial:Commercial: 20% more energy efficient20% more energy efficient
The Stretch Code is similar to the 2012 IECCThe Stretch Code is similar to the 2012 IECC
MisconceptionsMisconceptions
The Stretch Code is new and experimentalThe Stretch Code is new and experimental The Stretch Code requires tight unhealthy homesThe Stretch Code requires tight unhealthy homes The Stretch Code requires foam insulationThe Stretch Code requires foam insulation The Stretch Code requires mechanical ventilationThe Stretch Code requires mechanical ventilation Homes with oil heat cannot meet the Stretch CodeHomes with oil heat cannot meet the Stretch Code Town residents will be required to update their Town residents will be required to update their
existing homesexisting homes
What does the Stretch Code What does the Stretch Code Apply to? Apply to?
Same application as the MA base energy codeSame application as the MA base energy code InsulationInsulation Doors, Windows, SkylightsDoors, Windows, Skylights Mechanical EquipmentMechanical Equipment LightingLighting AppliancesAppliances Building tightnessBuilding tightness Duct tightnessDuct tightness RenewablesRenewables
What does the Stretch Code What does the Stretch Code Apply to? Apply to?
ResidentialResidential AdditionsAdditions Home RenovationsHome Renovations New ConstructionNew Construction
Commercial Commercial (5,000+sq/ft)(5,000+sq/ft)
New ConstructionNew Construction AdditionsAdditions Renovations ExemptRenovations Exempt
Additions and RenovationsAdditions and RenovationsPrescriptive or Performance PathPrescriptive or Performance Path
Prescriptive Path Prescriptive Path ENERGY STAR Windows, Doors and Skylights ENERGY STAR Windows, Doors and Skylights Tight Ducts – completely new duct systems onlyTight Ducts – completely new duct systems only Contractor Verified Contractor Verified Thermal Bypass ChecklistThermal Bypass Checklist
Performance Path Performance Path Whole house HERS RatingWhole house HERS Rating
Renovations:Renovations: HERS 85 < 2,000 sq ft.HERS 85 < 2,000 sq ft. HERS 80 ≥ 2,000 sq ft.HERS 80 ≥ 2,000 sq ft.
Additions:Additions: HERS 70 < 3,000 sq ft.HERS 70 < 3,000 sq ft. HERS 65 ≥ 3,000 sq ft.HERS 65 ≥ 3,000 sq ft.
New HomesNew HomesPerformance PathPerformance Path
Performance is the only optionPerformance is the only option HERS 70 < 3,000 sq ft.HERS 70 < 3,000 sq ft. HERS 65 ≥ 3,000 sq ft.HERS 65 ≥ 3,000 sq ft.
HERS Rating CompanyHERS Rating Company Review building plansReview building plans Thermal bypass ChecklistThermal bypass Checklist Blower-door and duct testingBlower-door and duct testing
Home Energy Rating System (HERS) IndexHome Energy Rating System (HERS) Index
Internal Revenue ServiceInternal Revenue Service U.S. Department of EnergyU.S. Department of Energy U.S. Environmental Protection AgencyU.S. Environmental Protection Agency Mortgage IndustryMortgage Industry Massachusetts Base Code - Alternative PathMassachusetts Base Code - Alternative Path Mass Save Residential New Construction ProgramMass Save Residential New Construction Program
New HomesNew HomesPerformance PathPerformance Path
Governed by the Residential Energy Governed by the Residential Energy Services Network (RESNET)Services Network (RESNET)
Technical StandardsTechnical Standards Testing ProceduresTesting Procedures Quality AssuranceQuality Assurance Continuing EducationContinuing Education Code of EthicsCode of Ethics Complaint ResolutionComplaint Resolution
New HomesNew HomesPerformance PathPerformance Path
Cost of the Stretch CodeCost of the Stretch CodeHousetyp
eSize Upgrade
CostsAdd’l
Annual Mortgage
Annual Savings
Single Family
2,672 $2,949 $214 $507
w/ incentives
2,672 $1,755 $127 $516
Single Family
4,462 $6,476 $471 $1,455
w/ incentives
4.462 $5,176 $376 $1,455
Single Family
1,708 $4,162 $302 $583
w/ incentives
1,708 $3,243 $236 $595
COMMERCIAL STRETCH CODECOMMERCIAL STRETCH CODE
54
Commercial ‘Stretch’ Commercial ‘Stretch’ AppendixAppendix
New buildings and additions over New buildings and additions over 5,000 ft2, renovations fall to the base 5,000 ft2, renovations fall to the base code code
Two Options (depending on size)Two Options (depending on size) Performance option - 20% below ASHRAE Performance option - 20% below ASHRAE
CodeCode Prescriptive option for most building types Prescriptive option for most building types 5,000 - 100,000 ft25,000 - 100,000 ft2
Special Code Exemptions (comply with Special Code Exemptions (comply with base code) for laboratories, base code) for laboratories, manufacturing, etc.manufacturing, etc.
Stretch Code Stretch Code Compliance & Compliance & InspectionsInspections
Same as base codeSame as base code
Code Official has the same authorityCode Official has the same authority Same building inspectionsSame building inspections Approves building documentsApproves building documents
Future of the Stretch CodeFuture of the Stretch Code The MA base energy code will update in 2014The MA base energy code will update in 2014
The Stretch Code will update tooThe Stretch Code will update too
More energy efficientMore energy efficient
No details yetNo details yet
Automatic AdoptionAutomatic Adoption
Training on new energy Training on new energy codescodes
Covering both the IECC 2012 & Stretch codeCovering both the IECC 2012 & Stretch code Provided free to all Code OfficialsProvided free to all Code Officials Provided at cost to building professionalsProvided at cost to building professionals Register online: Register online: www.cetonline.orgwww.cetonline.org Energy star homes training available for free: Energy star homes training available for free:
www.MassSave.comwww.MassSave.com Utilities offer commercial ‘Core Performance’ Utilities offer commercial ‘Core Performance’
energy trainingenergy training
Questions?Questions?