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Understanding the2009 Energy Code          Presented by:         Clayton Farmer   Bluegill Energy Management
History                      of Energy Codes   MEC 1992, ‟93, 95 – “Early” energy codes,    complicated, DP windows reqd....
Texas and the 2009                      IRC / IECCFinal Rule: §19.53.Building Energy Efficiency PerformanceStandardsa) Sin...
What Residential           Buildings Must Comply?             One and Two Family Dwellings             Multi-Family (3 s...
Remodeling Homes in      Texas      Are you performing Additions,    Renovations, Alterations, or Repairs           on a h...
Remodeling Homes in                   Texas                                2006 IRC                                       ...
Remodeling Homes in                   Texas                   As of January 1st 2012    Texas state                       ...
Remodeling Homes in          Texas                        2006 IRC                                              BuildingMe...
What Residential             Buildings Must Comply?101.4.3 Additions, alterations, renovations or repairs. Additions, alte...
What Residential           Buildings Must Comply?Example: AdditionsAdding on to an existing home                          ...
What Residential        Buildings Must Comply?JUST because you may be in the countydoes not exempt you from the statecodes...
Texas and the 2009                     IRC / IECC                             ComplianceN1101.2 Compliance. Compliance sha...
Texas and the 2009    IRC / IECC
Differences Between           IRC and IECC IECC addresses only energy, allows performance  approach IRC addresses all co...
Differences Between    IRC and IECC         No Choices         Flexibility & trade offs
Differences Between                   IRC and IECCThe IECC has typically    been viewed as  undesirable…..ButBuilders in o...
Municipalities        Texas municipalities          Galveston             Burnett          Harker Heights        Austin  ...
Texas and the 2009              IRC / IECC                           Got a                          Home?                 ...
Texas and the 2009              IRC / IECCDON‟T FORGET    YOUR                    Sec 401.3 CERTIFICATE               MAND...
Mandatory Items-                            402.4 Air leakage402.4.1 Building thermal envelope. The building thermal envel...
Mandatory Items-                402.4.2 Air sealing & insulationOption # 1Section 402.4.2.1- Performance testing of house ...
Mandatory Items-402.4.2 Air sealing & insulation                              Option # 2                         Section 4...
Mandatory Items-                 402.4.3 Wood Burning Fireplaces402.4.3 Fireplaces. New wood-burning fireplaces shall have...
Mandatory Items-402.4.4 Fenestration air leakage            402.4.4 Fenestration air leakage.            Windows, skylight...
Mandatory Items-                     402.4.5 Recessed lighting402.4.5 Recessed lighting. Recessed luminaires installed in ...
Mandatory Items-                 402.5 Maximum fenestration                     U-factor and SHGC402.5 Maximum fenestratio...
Mandatory Items-                         403.1 ControlsEach separate heating and cooling system must have a Thermostat.403...
Mandatory Items-                         403.2.1 Duct Insulation403.2.1 Insulation. Supply ducts in attics shall be insula...
Mandatory Items-                          403.2.2 Duct Sealing403.2.2 Sealing. All ducts, air handlers, filter boxes and b...
Mandatory Items-                               A Fast Five403.2.3 Building cavities. DON’T USE BUILDING CAVITIES AS SUPPLY...
Mandatory Items-                     403.6 Equipment sizing403.6 Equipment sizing. Heating and cooling equipment shall be ...
Mandatory Items-                          Another Fast Five403.8 Snow melt system controls. If you put one in, make it con...
Texas and the 2009              IRC / IECC                           Got a                          Home?                 ...
Texas and the 2009                 IRC / IECCCompliance401.2 Compliance. Projects shall comply with Sections 401,402.4, 40...
Texas and the 2009    IRC / IECC    Prescriptive Chart
Texas and the 2009    IRC / IECC    Prescriptive Chart
Texas and the 2009                     IRC / IECC                      Prescriptive High Points402.2.3 Access hatches and ...
Texas and the 2009                  IRC / IECC                                Prescriptive Meet the mandatory items Pick...
Texas and the 2009                   IRC / IECCCompliance401.2 Compliance. Projects shall comply with Sections 401,402.4, ...
Texas and the 2009                    IRC / IECCThe Reference Home- Table 405.5.2(1)405.5.2 Residence specifications. The ...
SimulatedPerformance  Performance
Questions
Thank You       Clayton FarmerBluegill Energy Management, LP       Bluegill GP, LLC        281-802-1224 cfarmer@bluegillen...
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Understanding the Texas Energy Code

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Understanding the Texas Energy Code

  1. 1. Understanding the2009 Energy Code Presented by: Clayton Farmer Bluegill Energy Management
  2. 2. History of Energy Codes MEC 1992, ‟93, 95 – “Early” energy codes, complicated, DP windows reqd. IECC 98, 2000, „03 – “Strengthening”, SHGC of 0.4 reqd. where < 3500 HDD IECC 2004, „06 – “Simplification”, Fewer CZ‟s, eliminate % windows, certificate required IECC 2009 – “Latest”, duct + envelope testing, efficient lighting required The code keeps pushing the bar! („09 Code is ~15% more stringent than „06 version)
  3. 3. Texas and the 2009 IRC / IECCFinal Rule: §19.53.Building Energy Efficiency PerformanceStandardsa) Single-family residential construction. Effective January 1, 2012, the energy efficiency provisions (Chapter 11) of the International Residential Code as they existed on May 1, 2009, are adopted as the energy code in this state for single-family residential construction as it is defined in Health and Safety Code, §388.002(12).b) All other residential, commercial, and industrial construction. Effective April 1, 2011, the International Energy Conservation Code as it existed on May 1, 2009, is adopted as the energy code for use in this state for all residential, commercial, and industrial construction that is not single-family residential construction under subsection (a) of this section.
  4. 4. What Residential Buildings Must Comply?  One and Two Family Dwellings  Multi-Family (3 stories and less)  Additions, Alterations, Renovations, Repairs Exempt Buildings  No Conditioning  Historical  Low peak energy for space conditioningNew DefinitionConditioned Space- An area or room within a building being heated orcooled, containing uninsulated ducts, or with a fixed opening directly intoan adjacent conditioned space.
  5. 5. Remodeling Homes in Texas Are you performing Additions, Renovations, Alterations, or Repairs on a home in Texas? Not sure what code to follow? Don‟t worry, Texas has residential building codes
  6. 6. Remodeling Homes in Texas 2006 IRC Building Mechanical Planning Plumbing Fuel Gas Energy2006 IRC- R102.7.1 Additions, alterations or repairs to any structure shall conform to the requirements for a new structure without requiring the existing structure to comply with all of the requirements of this code.
  7. 7. Remodeling Homes in Texas As of January 1st 2012 Texas state Texas stateresidential building residential energy code is the code is Chapter 11 2006 IRC. of the 2009 IRC. 2006 IRC Ch.11 2009 IRC
  8. 8. Remodeling Homes in Texas 2006 IRC BuildingMechanical Planning Plumbing Fuel Gas Energy
  9. 9. What Residential Buildings Must Comply?101.4.3 Additions, alterations, renovations or repairs. Additions, alterations, renovationsor repairs to an existing building, building system or portion thereof shall conform to theprovisions of this code as they relate to new construction without requiring the unalteredportion(s) of the existing building or building system to comply with this code. An additionshall be deemed to comply with this code if the addition alone complies or if the existingbuilding and addition comply with this code as a single building. Exception: The following need not comply provided the energy use of the building is not increased:  Storm windows  Glass only replacements  Existing ceiling, wall or floor cavities that are filled with insulation.  Construction where the existing roof, wall or floor cavity is not exposed.  Reroofing for roofs where insulation is not exposed.  Replacement of existing doors  Alterations that replace less than 50 percent of the luminaires  Light Bulb/Ballast Alterations
  10. 10. What Residential Buildings Must Comply?Example: AdditionsAdding on to an existing home  All parts of the addition must meet the energy code.  Any part of the existing home that was altered to accommodate the addition will also need to comply with the code.  Any changes to a building system (HVAC, ETC) may either in part or completely be brought into compliance.
  11. 11. What Residential Buildings Must Comply?JUST because you may be in the countydoes not exempt you from the statecodesFollow your municipal code or countycode if present and meets state codelevels.If no code, take it upon yourself to have it verified as meetingthe code.There is a lot of liability you would assume if you did notcomply with state minimum code.
  12. 12. Texas and the 2009 IRC / IECC ComplianceN1101.2 Compliance. Compliance shall be demonstrated by eithermeeting the requirements of the International Energy Conservation Code ormeeting the requirements of this chapter. Climate zones from FigureN1101.2 or Table N1101.2 shall be used in determining the applicablerequirements from this chapter.
  13. 13. Texas and the 2009 IRC / IECC
  14. 14. Differences Between IRC and IECC IECC addresses only energy, allows performance approach IRC addresses all codes (structural, mechanical, plumbing, etc.)  Allows builder to carry only one code book  Chapter 11 is residential energy IRC just addresses detached one- and two-family dwellings and townhouses IRC allows compliance with IECC as an alternative to Chapter 11 Energy requirements in IRC and IECC almost identical  IRC requires 0.35 SHGC in Climate Zones 1-3;  IECC requires 0.30 SHGC
  15. 15. Differences Between IRC and IECC No Choices Flexibility & trade offs
  16. 16. Differences Between IRC and IECCThe IECC has typically been viewed as undesirable…..ButBuilders in our climate need the flexibility offered by the IECC.
  17. 17. Municipalities  Texas municipalities Galveston Burnett Harker Heights Austin Laredo Coppell Leander Jonestown Midland Plainview San Antonio Uvalde Waco Sugarland Arlington Beaumont Alvin Cedar Park Dickinson College Station El Campo Eagle Pass Baytown El Paso Bellaire Friendswood La Porte Livingston  City of Houston
  18. 18. Texas and the 2009 IRC / IECC Got a Home? Fenestration and YES Insulation YES or NO requirements 405- AnnualPrescriptive 402.1.4 Total UA Performance in (use chart) Alternative cost $$ or Btu Mandatory Requirements (Includes testing)
  19. 19. Texas and the 2009 IRC / IECCDON‟T FORGET YOUR Sec 401.3 CERTIFICATE MANDATORY
  20. 20. Mandatory Items- 402.4 Air leakage402.4.1 Building thermal envelope. The building thermal envelope shall bedurably sealed to limit infiltration. The following shall be caulked, gasketed,weather-stripped or otherwise sealed with an air barrier material, suitable filmor solid material:  All joints, seams and penetrations  Site-built windows, doors and skylight.  Openings between window and door assemblies  Utility penetrations.  Dropped ceilings or chases  Knee walls.  Walls and ceilings separating a garage  Behind tubs and showers on exterior walls  Common walls between dwelling units  Attic access openings  Rim joist junction  Other sources of infiltration
  21. 21. Mandatory Items- 402.4.2 Air sealing & insulationOption # 1Section 402.4.2.1- Performance testing of house leakage. Blower doorresult must be less than 7 ACH50 when tested at a pressure of 50 Pa. Thereare 7 procedure items for conducting the test:  Exterior windows and doors, fireplace and stove doors shall be closed  Dampers shall be closed, but not sealed  Interior doors shall be open;  Continuous ventilation systems shall be closed and sealed;  Heating and cooling system(s) shall be turned off;  HVAC ducts shall not be sealed; and  Supply and return registers shall not be sealed.
  22. 22. Mandatory Items-402.4.2 Air sealing & insulation Option # 2 Section 402.4.2.2- Visual inspection option. Items listed in Table 402.4.2, applicable to the method of construction, are field verified. Most likely the code official will require 3rd party.
  23. 23. Mandatory Items- 402.4.3 Wood Burning Fireplaces402.4.3 Fireplaces. New wood-burning fireplaces shall have gasketed doorsand outdoor combustion air.The intent here is to mitigate air leakage during periods of non-use, as well asindoor air quality concerns.The ICC interprets this to mean "masonry fireplaces" constructed in accordance withthe International Building Code - Section 2111, and NOT "factory-built" fireplacesmanufactured in accordance with the International Mechanical Code - Section 903.The argument- Gasketed doors may void the UL certification on the factorybuilt FPs. Section 101.3 (". this code is not intended to abridge safety . requirementscontained in other applicable codes or ordinances.") and 102.1 (". provided that suchconstruction [or] design … has been approved by the code official as meeting theintent of this code."). The 2012 IECC clarifies by just saying flue dampers and outdoor combustion air
  24. 24. Mandatory Items-402.4.4 Fenestration air leakage 402.4.4 Fenestration air leakage. Windows, skylights and sliding glass doors shall have an air infiltration rate of no more than 0.3 cfm per square foot, and swinging doors no more than 0.5 cfm per square foot Exception: Site Built Windows, Skylights and Doors
  25. 25. Mandatory Items- 402.4.5 Recessed lighting402.4.5 Recessed lighting. Recessed luminaires installed in the buildingthermal envelope shall be sealed to limit air leakage between conditionedand unconditioned spaces. The cans need to be IC-rated and Air Tight. All recessed luminaires shall be sealed with a gasket or caulk between thehousing and the interior wall or ceiling covering.
  26. 26. Mandatory Items- 402.5 Maximum fenestration U-factor and SHGC402.5 Maximum fenestration U-factor and SHGC. The area-weightedaverage maximum fenestration SHGC permitted using trade-offs fromSection 405 in Zones 1 through 3 shall be 0.50.
  27. 27. Mandatory Items- 403.1 ControlsEach separate heating and cooling system must have a Thermostat.403.1.1 Programmable thermostat- At least 1.This thermostat shall include the capability toset back or temporarily operate the system tomaintain zone temperatures. The thermostatshall initially be programmed with a heatingtemperature set point no higher than 70°F(21°C) and a cooling temperature set point nolower than 78°F.403.1.2 Heat pump supplementary heat. Heat Pump requires smartthermostat or lockout feature to prevent unnecessary strip heat
  28. 28. Mandatory Items- 403.2.1 Duct Insulation403.2.1 Insulation. Supply ducts in attics shall be insulated to a minimum of R-8. Allother ducts shall be insulated to a minimum of R-6.Exception: Ducts or portions thereof located completely inside the building thermalenvelope.This is PRESCRIPTIVE only! If you do the performance path,Section 405 allows you to pass Go And Collect your $$.405.2 Mandatory requirements. Compliance with this section requires that themandatory provisions identified in Section 401.2 be met. All supply and return ductsnot completely inside the building thermal envelope shall be insulated to a minimumof R-6.
  29. 29. Mandatory Items- 403.2.2 Duct Sealing403.2.2 Sealing. All ducts, air handlers, filter boxes and building cavities used asducts shall be sealed. Joints and seams shall comply with Section M1601.4.1 of theInternational Residential Code. VERIFY Duct Tightness by either of the following: 1. Postconstruction test: Leakage to outdoors shall be less than or equal to 8 cfm per 100 ft2 (8%) of conditioned floor area or a total leakage less than or equal to 12 cfm per 100 ft2 (12%) of conditioned floor area when tested at a pressure of 25 Pa. 2. Rough-in test: Total leakage shall be less than or equal to 6 cfm per 100 ft2 (6%) of conditioned floor area when tested at a pressure of 25 Pa across the roughed in system, including the manufacturer’s air handler enclosure. IF NO AIRHANDLER- 4 cfm per 100ft2 (4%) EXCEPTION: NOT Required if all ducts and air handlers are located in conditioned space
  30. 30. Mandatory Items- A Fast Five403.2.3 Building cavities. DON’T USE BUILDING CAVITIES AS SUPPLYDUCTS! 403.3 Mechanical system piping insulation. If it is hot 105°F or really cold 55°F, insulate it to R-3. 403.4 Circulating hot water systems. Circulating systems are insulated to R-2 and shall include an automatic or a readily accessible manual switch to turn off pump when not in use. 403.5 Mechanical ventilation. Outdoor air intakes and exhausts shall have automatic or gravity dampers that close when the ventilation system is not operating. 403.7 Systems serving multiple dwelling units. Go to the commercial section 503 and 504.
  31. 31. Mandatory Items- 403.6 Equipment sizing403.6 Equipment sizing. Heating and cooling equipment shall be sized inaccordance with Section M1401.3 of the International Residential Code. YES, that means the 2009 IRC M1401.3 Sizing. Heating and cooling equipment shall be sized in accordance with ACCA Manual S based on building loads calculated in accordance with ACCA Manual J or other.
  32. 32. Mandatory Items- Another Fast Five403.8 Snow melt system controls. If you put one in, make it controllableper temperature settings. 403.9 Pools. Pools shall be provided with energy-conserving measures. See EXCEPTIONS for further details. 403.9.1 Pool heaters. Equipment with readily accessible on-off switch to allow shutting off the heater without adjusting the thermostat setting. 403.9.2 Time switches. Time switches that can automatically turn off and on heaters and pumps according to a preset schedule. 403.9.3 Pool covers. Heated pools shall be equipped with a vapor-retardant pool cover on or at the water surface. R-12 if heated to 90°F
  33. 33. Texas and the 2009 IRC / IECC Got a Home? Fenestration and YES Insulation YES or NO requirements 405- AnnualPrescriptive 402.1.4 Total UA Performance in (use chart) Alternative cost $$ or Btu Mandatory Requirements (Includes testing)
  34. 34. Texas and the 2009 IRC / IECCCompliance401.2 Compliance. Projects shall comply with Sections 401,402.4, 402.5, and 403.1, 403.2.2, 403.2.3, and 403.3 through403.9 (referred to as the MANDATORY provisions) and either: 1. Sections 402.1 through 402.3, 403.2.1 and 404.1 (prescriptive); Or 2. Section 405 (performance).
  35. 35. Texas and the 2009 IRC / IECC Prescriptive Chart
  36. 36. Texas and the 2009 IRC / IECC Prescriptive Chart
  37. 37. Texas and the 2009 IRC / IECC Prescriptive High Points402.2.3 Access hatches and doors. Access doors from conditionedspaces to unconditioned spaces (e.g., attics and crawl spaces) shall beweather-stripped and insulated to a level equivalent to the insulation on thesurrounding surfaces. 403.2.1 Insulation. Supply ducts in attics shall be insulated to a minimum of R-8. All other ducts shall be insulated to a minimum of R-6. 404.1 Lighting equipment. A minimum of 50 percent of the lamps in permanently installed lighting fixtures shall be high-efficacy lamps.
  38. 38. Texas and the 2009 IRC / IECC Prescriptive Meet the mandatory items Pick your Pathway Demonstrate your compliance
  39. 39. Texas and the 2009 IRC / IECCCompliance401.2 Compliance. Projects shall comply with Sections 401,402.4, 402.5, and 403.1, 403.2.2, 403.2.3, and 403.3 through403.9 (referred to as the MANDATORY provisions) and either: 2. Section 405 (performance).Compliance with this section requires that the mandatoryprovisions identified in Section 401.2 be met. All supply and return ducts not completely inside the building thermal envelope shall be insulated to a minimum of R-6.
  40. 40. Texas and the 2009 IRC / IECCThe Reference Home- Table 405.5.2(1)405.5.2 Residence specifications. The standard referencedesign and proposed design shall be configured and analyzed as specifiedby Table 405.5.2(1). Table 405.5.2(1) shall include by reference all notescontained in Table 402.1.1.
  41. 41. SimulatedPerformance Performance
  42. 42. Questions
  43. 43. Thank You Clayton FarmerBluegill Energy Management, LP Bluegill GP, LLC 281-802-1224 cfarmer@bluegillenergy.com www.bluegillenergy.com

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