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The 2009 International Energy Conservation Code Overview

The 2009 International Energy Conservation Code Overview. Village of Frankfort, Illinois April 21, 2010. Presented By:. Don Plass, C.B.O., M.C.P., LEED AP Director of Code Enforcement Village of Hoffman Estates. Introduction and Overview. Codes

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The 2009 International Energy Conservation Code Overview

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  1. The 2009 International Energy Conservation Code Overview Village of Frankfort, Illinois April 21, 2010

  2. Presented By: Don Plass, C.B.O., M.C.P., LEED AP Director of Code Enforcement Village of Hoffman Estates

  3. Introduction and Overview • Codes • History of Illinois Energy Efficiency Building Act • Residential Applications of the 2009 IECC • RESCheck/REM Rate

  4. Codes • Building Code – A set of rules of procedures designed to secure uniformity and protect the public interest in such matters as building constriction and public health, established by a public agency and commonly having the force of law in a particular jurisdiction

  5. Earliest Recorded Building Code • The Code of Hammurabi 1780 BC • The earliest recorded “Building Code” comes from an 8 foot stone slab recovered in the Persian Mountains in 1901. It is preserved today in the Louvre, Paris • The Code was written by the ruler of Babylon: King Hammurabi • The Code contained 282 laws, of which 5 referred to construction

  6. Hammurabi Code Numbers 229-233 • 229-If a builder build a house for someone and does not construct it properly, and the house for which he built fall in and kills the owner, the builder shall be put to death. • 230-If it kill the son of the owner, the son of the builder shall be put to death.

  7. 233-If a builder builds a house for someone, even though he has not completed it, if then the walls seem toppling, the builder must make the walls solid from his own means

  8. Present day codes: • Building Officials and Code Administrators (BOCA) was published in 1915 (Midwest) • Uniform Building Code (UBC) was published in 1927 (West of Mississippi) • Southern Building Code Congress (SBCC) was published in 1940 (South East) “Standard Building Code" • These are commercial codes

  9. CABO • In 1972, the Council of American Building Officials (CABO) was incorporated with the combination of the three model commercial code groups: BOCA, UBC and SBCC. • CABO is a prescriptive code for residential one and two family dwelling units.

  10. Model Energy Code-Evolution • In 1973 the first Model Energy Code (MEC) was published by CABO • In 1998 the International Energy Conservation Code was published by the three model code groups who were merging into the International Code Council (ICC) • In 2000 the first International Energy Conservation Code (IECC) was published by ICC

  11. 2000 International Energy Conservation Code (IECC) • The first published International Code Council (ICC) Energy Code • 19 Climate Zones (CZ) • 198 pages in length

  12. 2006 IECC • Reduced number of Climate Zones to 8 Zones • Reduced to 63 pages

  13. 2009 IECC • Applies to Residential Buildings • One and Two Family dwellings, Townhouses • Multifamily dwellings three-stories or less in height • Commercial Buildings • Multifamily dwellings four stories or greater in height • Eight global climate zones • Compliance assessment choices • Prescriptive criteria-for ease of enforcement • Simulated Performance criteria-for design flexibility

  14. 2009 IECC • Changes in Residential Requirements • Stringency-some key differences • New requirements • Building envelope tightness • Duct testing • Lighting equipment • Pool controls and covers • Snow melt controls • Moisture control requirements moved to IRC • No mechanical trade-offs allowed

  15. Envelope Stringency Changes-2009 IECC • Fenestration U—Factor, Climate Zone 4 is lowered from 0.4 to 0.35 • Wood frame wall U-Factor, CZ5-CZ6 lowered from 0.060 to 0.057 • `Minimum R-Value for “batt – only” raised from 19 to 20 • Basement wall U-Factor, CZ6-CZ7 lowered from 0.059 to 0.050 • Minimum R-Value raised from 10/13 to 15/19

  16. Building Envelope Tightness – 2009 IECC • Mandatory air leakage section for building thermal envelope (402.4.1) has been revised to include attic openings and rim joist junctions • New air sealing and insulation section (402.4.2) added with testing and visual inspections options

  17. Duct Testing – 2009 IECC • New Duct Testing requirements are in Section 403.2.2 for either a post construction or rough-in test, unless ducts and air handler are located within the conditioned space

  18. Lighting Equipment – 2009 IECC • A new requirement in Section 404 that 50 % of lamps in permanently installed lighting fixtures shall be high-efficacy lamps

  19. Pool Controls and Covers – 2009 IECC • A new Section 403.9 in pools requires a readily accessible on/off switch, time switches for heaters and pumps along with pool covers

  20. Snow Melt Controls – 2009 IECC • A new Section 403.8 has been added for snow melt controls

  21. Moisture Control Requirements to IRC • Moisture control requirements (Vapor Barriers) have been moved to the 2009 International Residential Code

  22. No Mechanical Tradeoffs Allowed • Table 405.5.2(1) sets the standard for heating and cooling systems to be “as proposed” This removes justification for the justification for the mechanical systems trade off used in REScheck

  23. IRC not equal to IECC • Energy Chapter in IRC is not equal to the IECC • DOE does not recognize the IRC for energy • IRS does not recognize the IRC for tax credits • FHA does not recognize the IRC • Illinois does not recognize the IRC

  24. History of the Illinois Energy Conservation Code (Commercial) • Public Act 093-0936 was signed into law in August of 2004 as the Illinois Energy Conservation Code for Commercial Buildings • Became effective April 8, 2006 (2000 IECC/2001 IECC Supplement) • Revised to exclude supplements on October 9, 2007 • On August 18, 2009 the 2009 IECC was adopted for all Commercial projects

  25. Illinois Energy Conservation Code (Residential) • Public Act 096-0778 was signed on August 28, 2009 to include Residential structures • The Energy Efficient Commercial Building Act became “The Energy Efficient Building Act” • Rules for enforcement were filed with the SOS on January 29, 2010 under Emergency Rules and is effective for enforcement when filed. The Rules are in the first of two Public Comment Periods

  26. What the Law Requires • Follow the Latest published edition of the International Energy Conservation Code (IECC) • Commercial/Residential permit applications must follow the Code any time a Permit is applied for

  27. Amending the Illinois Energy Code • Commercial: • No unit of local government may be less stringent than the 2009 IECC • Nothing prevents a unit of local government from adopting an energy efficiency code or standards that are more stringent than this code

  28. Amending the Illinois Energy Code • Residential: • No unit of local government including any Home Rule Unit , may regulate the IECC in a manner that is either less or more strict than the 2009 IECC

  29. 2009 IECC/Residential More Strict • The following entities may regulate energy efficient building standards more stringent than the 2009 IECC • (i) If on or before May 15, 2009 has adopted by reference the 2006 IECC (equal/more stringent) • (ii) If on or before May 15, 2009 has provided the CDB with a code/standard equal to or more stringent than the 2006 IECC • (iii) Population of 1,000,000 or more (Chicago)

  30. Residential Applications of the 2009 IECC (Chapter 4) • Structure of the 2009 IECC • Chapter 1 Administrative • Chapter 2 Definitions • Chapter 3 Climate Zones • Chapter 4 Residential Energy Efficiency • Chapter 5 Commercial Energy Efficiency • Chapter 6 Referenced Standards

  31. Overview of 2009 IECC Residential • The focus is on the building envelope • Ductwork – seal and insulate • There are limited space heating, AC and water heating requirements • No appliance requirements • Lighting fixtures shall have 50% of permanently installed fixtures with high-efficacy lamps

  32. Chapter 1 - Administration • All low rise (3 stories or less) houses, condominiums, townhomes and apartments (R-2, R-3, R-4) • If the building is not classified as residential, it is classified as commercial • Includes new construction, alterations, repairs and additions • i.e. Window replacements are considered under this

  33. Exceptions to Thermal Provisions • Very low energy use( less than 3.4 BTU/h-sq ft) • Buildings neither heated or cooled • Existing buildings • Historic buildings

  34. Additions, Alterations, Renovations, Repairs • Must conform to new work standards • Existing do not need to comply (if not changed) • Addition can comply alone or with existing structure • Exceptions: • Installing storm windows over existing fenestration • Glass only replacements • Exposed, existing ceiling, wall or floor cavities if already filled with insulation • Where existing roof, wall or floor cavity is not exposed • Re-roofing when neither sheathing nor insulation is exposed • Insulate above or below ceiling • Attics without insulation in the cavities

  35. Construction Documents • Required Information on plans • Insulation materials and R-Values • Fenestration and U-Factors • Mechanical system design criteria • Mechanical and service water heating systems and equipment types, along with sizes and efficiencies • Duct sealing • Duct and pipe insulation and locations • Lighting fixture schedule/showing high-efficacy lamps

  36. Chapter 2 - Definitions • Air Barrier: Material(s) assembled and joined together to provide a barrier to air leakage through the building envelope. An air barrier may be a single material or a combination of materials. • High Efficacy Lamps: Compact fluorescent lamps, T-8 or smaller diameter linear fluorescent lamps • R-Value: Thermal Resistance R=1/U • U-Factor: Thermal Transmittance U=R/1 • Code: The 2009 International Energy Conservation Code • Residential Building: Three stories or less above grade

  37. Building Thermal Envelope-The basement walls, exterior walls, floor, roof, and any other building element that enclose conditioned space. This boundary also includes the boundary between conditioned space and any exempt or unconditioned spaces.

  38. Conditioned space – An area or room within a building being heated or cooled, containing uninsulated ducts, or with a fixed opening directly into an adjacent conditioned space.

  39. Chapter 3 – Climate Zones • Listed by state and county • Interior Design Conditions: Max 72 Degrees for Heating and a minimum of 75 degrees for cooling • Requirement of materials to be marked for inspection • Default Fenestration Factors

  40. Chapter 4 – Residential Energy Efficiency • Code Compliance Tools Prescriptive Total Building “UA” Trade Off Energy Analysis None Needed REScheckSoftware Software For Example: REM/Design REM/Rate

  41. Three Code Compliance Options Prescriptive U-Factor and “UA” Alternatives Simulated Performance (Software) R-Values 402.1.1 U-Factor 402.1.3 Total Building UA 402.1.4 Simulated Performance Alternative 405

  42. Insulation and Fenestration Requirements by Climate Zone

  43. U-Factor Requirements by Climate Zone

  44. U-Factor and Total UA (REScheck) • U-Factor Alternative • Similar to Prescriptive but uses U-Factors instead of R-Values • Allows for innovative or less common construction • Total UA Alternative • Same as U-Factor Alternative but allows trade-offs across all envelope components

  45. Attic Access Hatches • Weatherstrip and insulate doors/panels from conditioned spaces to unconditioned spaces • (i.e. attics and crawl spaces) • Insulate to a level equivalent to surrounding surfaces • Provide access to all equipment that will prevent damaging or compressing the surrounding equipment • Install a wood framed or equivalent baffle or retainer when loose fill insulation is installed

  46. Air Leakage (Mandatory for all) • Air Leakage • Recessed Lighting Fixtures • Maximum Fenestration U-Factor and SHGC • Fireplaces

  47. Building Thermal Envelope • The following shall be caulked, gasketed , weatherstripped or otherwise sealed with an air barrier material, suitable fim or solid material • All joints, seams and penetrations • Site built windows, doors and skylights • Openings between window and door assemblies and their respective jambs and framing • Utility penetrations • Dropped ceilings or chases adjacent to the thermal envelope

  48. Knee walls • Walls and ceilings separating a garage from conditioned spaces • Behind tub and showers on exterior walls • Common walls between dwelling units • Attic access openings • Rim joist junctions • All other sources of infiltration

  49. Areas for Air Leakage • Windows/doors • Between sole plate • Floors and exterior wall panels • Plumbing • Electrical • Service access • Recessed lighting • Rim Joist junction

  50. Air Sealing and Insulation-2 Options • Two Options to Demonstrate Compliance • Blower Door-When tested air leakage is <7 ACH when tested with a blower door at 50 Pascals • Testing after rough-in and installation of building envelope penetrations • When items listed in Table 402.4.2 applicable to the method of construction are field verified (Section 402.4.2)

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