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Building Energy Codes

Overview of building energy efficiency concepts and practices<br>

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Building Energy Codes

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  1. Building Energy Codes SU-02-101 PDH: 2 www.pdh-pro.com/Courses/Webinar/Webinars.html

  2. Learning Objectives • Provide a basic introduction to the varied and complex issues associated with building energy codes. • Present an overview of building energy efficiency concepts and practices

  3. U.S. Energy Use

  4. Challenges of Energy Use • Economic well-being for individuals, businesses, and governments • Dependence on foreign oil and national security • Global climate change.

  5. Code Benefits Reduced energy consumption by approximately 0.5-quadrillion Btu per year by 2015,and 3.5-quadrillionBtu per yearby 2030. Reduced CO2 emissionsby roughly 3 percent in terms of the projected national CO2 emissions in 2030. Rising cost savingsmore than $4 billionper year back inhomeowners’ pockets by 2015, a figure that could rise to over $30 billion per year by 2030

  6. Code Challenges • Code Development • Reaching consensus on the details • Code Adoption • Not automatic in many states • Code Compliance • Learning to design using new standards and techniques • Implementing new requirements at the jobsite • Providing staff and resources to plan, review, and inspect.

  7. Building Energy Codes ASHRAE Standard 90.1 International Energy Conservation Code State and Locally Adopted Codes

  8. What Do Building Energy Codes and Standards Cover? For both residential and commercial: • Building Envelope • Mechanical • Service Water Heating • Lighting • Electrical Power

  9. Energy Codes & Standards History Residential Codes 86 MEC 93 MEC 98 IECC 03 IECC 09 IECC 77 MCEC 83 MEC 89 MEC 92 MEC 95 MEC 00 IECC 06 IECC 90A-1980 90.1-1989 90.1-1999 90.1-2001 90.1-2004 90.1-2007 Codified 90.1-1989 90-1975 Commercial Standards Federal 10 CFR433 10 CFR434FEDCOM II 10 CFR434FEDCOM I 10 CFR435 FEDCOM 0 10 CFR 435 COSTSAFR 10 CFR 435Subpart A FEDRES

  10. Model Codes & Standards Common Versions Title Type Applicability International Energy Conservation Code (IECC) Model Energy Code Residential & commercial buildings; mandatory, enforceable language 2003 IECC2006 IECC 2009 IECC ASHRAE Standard 90.1 Energy Efficient Design of New Buildings Except Low-Rise Residential Buildings Energy Standard All buildings except residential 3 stories or less 90.1-2004 90.1-2007

  11. Baseline: IECC and ASHRAE 90.1 IECC applies Both IECC and ASHRAE 90.1 apply, ASHRAE 90.1 likely used Both IECC and ASHRAE 90.1 apply,either used to comply

  12. IECC Code Process Public CommentPeriod CodeDevelopment Hearing, PublicTestimony, Committee Vote,PossibleAssembly Vote,ProposalsSubmitted Final ActionHearing,PublicTestimony,Final Vote ofGovernmentalMembers CodeChangeProposalsSubmitted New CodePublished andDistributed by Date Certain Challengesof CodeDevelopment Hearing ProposedModifications

  13. ASHRAE 90.1 Process SubstantiveChanges CommitteeProposesStandardChanges PublicReviewandComment ASHRAEBoard ofDirectorsApproval NewStandardsor AddendaPublished CommentAccepted CommitteeApproval ANSI Approval Appeal ofCommitteeApproval upheld denied

  14. Energy Code Adoption • Can occur at the state or local level in one of two ways: • directly through legislative action (state level) • by regulatory action throughstate or local agencies.

  15. Typical Adoption Process,State and Local State Energy Office StateAppointed Council or Committee ApprovingAuthorityReviewsLegislation orRegulation ProposalUndergoesPublic ReviewProcess Results AreIncorporatedinto theProposal After Filed or Approved, Code BecomesLaw Local Building Officials Mayor City Council

  16. How Energy Codes AffectBuilding Design and Construction • Wall, floor, ceiling • Doors, windows • Heating, ventilating,and cooling systems andequipment • Lighting systems andequipment • Water-heating systemsand equipment

  17. Codes and Architecture Increased insulation levels andefficient windows coupled with an efficient lighting system will reduce the heat loss from the building and heat gain from the lighting system.

  18. Codes and Construction For Instance The residential builder may use2” X 6” studs(instead of 2” X 4”)for walls in a homeso that higher levels of insulation can beinstalled to meetthe code.

  19. Building Envelope The energy code specifies the insulation levels in the floor, ceiling, and walls and requirements intended to seal the building against air leakage and moisture migration.

  20. Heating, ventilating, and cooling Energy codes providecriteria for thesize and efficiency of HVAC systems and equipment.

  21. Lighting and Electrical The energy codes provideminimum criteria to supportefficient, effective lighting—and in commercial spaces—lighting controls.

  22. Water Heating Energy codes provideminimum criteria toeffectively heat anddeliver hot water.

  23. Going Above and Beyond Code Yukon Kuskokwim Health Corporation, Community Health Building, Bethel, AK ASHRAE Advanced Energy Design Guide for Small Office Buildings, 2004

  24. Energy Code Enforcement and Compliance Enforcement, or making sure that a building is in compliance with an energy code, is the last step in the building process.

  25. Codes and the Building Process C O M P L I A N C E Local Code Local Government Save Energyand Money Reduce CarbonEmissions ArchitectsBuilders andEngineers Building Construction BuildingEnergy Code State Code State Government Review Plans Review products, materialsequipment specifications Review tests, certificationreports, product listings Inspect building and itssystems during construction Evaluate materialssubstituted in the field Inspect prior to occupancy

  26. DOE Support DOE and Federal Support includes: • Participation in development andupdating of codes andstandards • Provision of financial andtechnical assistance toadopt, implement, andenforce codes and standards. • Provide compliancetools. • Provide information andresources, complianceproducts, training, and energycode related news.

  27. REScheck™ DOE’s residential compliance software Desktop Software Tools Web-Based Tools (Windows or Mac version) No-cost, easy-to-use software that will demonstrate compliance. www.energycodes.gov/software.stm

  28. COMcheck™ DOE’s commercial compliance software Desktop Software Tools Web-Based Tools (Windows or Mac version) No-cost, easy-to-use software that will demonstrate compliance. www.energycodes.gov/software.stm

  29. Adopt, Implement, Enforce – Resources www.energycodes.gov

  30. Adopt, Implement, Enforce – Resources BECP is developing guidelines and tools to use in measuring compliance with building energy codes, which: • Foster uniformity and objectivity in measuring compliance rates • Eliminate need for each state to develop itsown procedures and tools • Provide tools that states can adapt for their own preferred use • Collect additional data and support related activities.

  31. Congratulations! Your Building Energy Codes training is complete • Next Steps • Review handouts • Repeat this presentation (optional) • Complete exam • Certificate of Completion

  32. Next Steps 1. Download - Course Materials and Quiz http://www.pdh-pro.com/Courses/Webinar/HS02104W.html 2. Review Materials and Complete Practice Quiz 3. Group Review

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