2009 IECC 
Residential 
Provision Review




Bill Styczynski
       y y
Al Bloom
Lew Wilson
Lew Wilson
Steve Ryniewicz
Illinois Residential Energy Code 
                            gy

Facts:
• Public Act 096‐ 0778, effective as of January 
...
Illinois Residential Energy Code 
                            gy
What is included:
   at s c uded:
• Statewide residential...
Illinois Residential Energy Code 
                           gy

Exempted communities include:
Exempted communities includ...
Illinois Residential Energy Code 
                           gy

IECC concerned with 4 main areas of a building:
IECC conc...
Illinois Residential Energy Code 
                            gy
Residential buildings are defined as:
Residential buildin...
Illinois Residential Energy Code 
                            gy

Exempted buildings include:
Exempted buildings include:
...
Building Examples
                    g     p
In mixed occupancy 
buildings of 3 stories or 
less, the residential 
portio...
Design Requirements
             g    q

• Northern Illinois – Climate Zone 5A
  Northern Illinois  Climate Zone 5A
• Indo...
Other General Requirements
                    q
• R value of insulation must be applied to
  R value of insulation must b...
Material Labeling Examples
                g     p
Other General Requirements
                    q

• Maintenance instructions for equipment and
  Maintenance instructions ...
2009 IECC Compliance Methods
               p
• Prescriptive  ‐ Three Methods:
         p

  ‐ R‐Value Computation – easie...
2009 IECC Compliance Methods
               p
• Performance
   ‐ The most flexible compliance route
   ‐ Allows for creati...
2009 IECC Compliance Methods
             p
Prescriptive Compliance  R‐Value
       p        p
Prescriptive Compliance  R‐Value
       p        p
Prescriptive Compliance  R‐Value
       p        p
Prescriptive Compliance  R‐Value
        p        p
• Ceilings with attic spaces: Where R‐38 is the 
        g            ...
Prescriptive Compliance  R‐Value
        p        p

Ceilings without attic spaces (i.e. partial 
Ceilings without attic s...
Prescriptive Compliance  R‐Value
        p        p

Access hatches & doors
Access hatches & doors
• Access from condition...
Prescriptive Compliance  R‐Value
        p        p

Steel‐frame walls, ceilings & floors:
St l f          ll   ili    & f...
Prescriptive Compliance  R‐Value
       p        p
Prescriptive Compliance  R‐Value
       p        p
Slab‐on‐grade floors 

•Slab‐on‐grade floors 
less than 12” below 
l   ...
Prescriptive Compliance  R‐Value
        p        p

Crawl Spaces
Crawl Spaces
• Insulate the floor above the crawl space ...
Prescriptive Compliance  R‐Value
        p        p
Fenestration
• An area‐weighted average of the fenestration 
  product...
Prescriptive Compliance  R‐Value
        p        p

Glazed fenestration exemption
Glazed fenestration exemption
• Up to 1...
Prescriptive Compliance  R‐Value
        p        p

Opaque door exemption
Opaque door exemption
• One side‐hinged opaque ...
Prescriptive Compliance  R‐Value
        p        p

Replacement fenestration
Replacement fenestration
• When some or all ...
Prescriptive Compliance  R‐Value
         p        p

Air leakage (mandatory)  building envelope
Air leakage (mandatory) –...
Prescriptive Compliance  R‐Value
        p        p
Air leakage (mandatory) – continued:
1. All joints, seams & penetratio...
Prescriptive Compliance  R‐Value
        p        p
Air leakage (mandatory) – continued:
7.   Behind tubs and showers on e...
Prescriptive Compliance  R‐Value
        p        p
Air sealing and insulation
• Building envelope and insulation shall be...
Prescriptive Compliance  R‐Value
        p        p
Fireplaces
• New wood‐burning fireplaces shall have 
  gasketed doors ...
Prescriptive Compliance  R‐Value
        p        p
Fenestration air leakage
• Windows, skylights and sliding glass doors ...
Prescriptive Compliance  R‐Value
        p        p
Recessed lighting
• Recessed lights installed in the building 
   ther...
Prescriptive Compliance  R‐Value
        p        p
Maximum fenestration U‐factor & SHGC
(Mandatory)
• If using Total UA a...
Prescriptive Compliance  R‐Value
        p        p
Vapor retarders
• Vapor retarder requirements moved to IRC 
  and IBC....
Prescriptive Compliance  R‐Value
        p        p
Vapor retarders
• Kraft‐faced batts and polyethylene sheets are 
  to ...
Section 403 ‐ Systems
                          y
•   Controls ‐ Thermostats
•   Ducts
•   Mechanical system piping insula...
Controls – GFA Systems
                y
Controls – GFA System Thermostats
(Mandatory)
• Gas forced air heating system shall have one 
  programmable thermostat pe...
Controls – Heat Pumps
                           p
(Mandatory)
• Heat pumps with supplementary electric 
  resistance heat...
Ducts
•   INSULATION – MANDATORY
•   PRESCRIPTIVE NOT PERFORMANCE
•   Supply ducts in attics shall be insulated to R‐8
   ...
Ducts
• SEALING – MANDATORY
• All ducts, air handlers, filter boxes and 
  building cavities used as ducts shall be sealed...
Duct Leakage Testing
                    g        g
• Preconstruction test: Leakage to outdoors less 
  than or equal to 8...
Mechanical System Piping Insulation
(Mandatory)
• Chilled or hot water systems
• Mechanical system piping capable of carry...
Circulating Hot Water Systems
             g            y
(Mandatory)
• All circulating hot water piping shall be 
  insul...
Controls – GFA Systems
                y
Mechanical Ventilation
(Mandatory)
• Outdoor air intakes and exhausts shall have 
  automatic or gravity dampers that clos...
Equipment Sizing
             q p           g
(Mandatory)
• Heating and cooling systems shall be sized in 
  accordance wi...
Systems  ‐Serving Multiple D. U. 
   y              g      p
(Mandatory)
• Systems serving multiple dwelling units shall 
...
Snow Melt Systems Controls
               y
(Mandatory)
• Snow and ice melting systems shall include 
  automatic controls...
Pools ‐ Heaters
(Mandatory)
• Pool heaters shall be equipped with a switch 
  to allow heater to be turned off without 
  ...
Pools ‐ Covers
• Heated pools shall be equipped with a vapor 
  retardant cover
• Pools heated to more than 90 F shall hav...
Basement Foundation Insulation
Slab‐on‐Grade Foundation Insulation
Typical Exterior Wall Insulation
 yp
Exterior Wall Insulation at Gable
Raised Heel Truss Insulation
Questions?
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2009 International Energy Conservation Code Residential (Secure)

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summary of the 2009 International Energy Conservation Code for Residential Uses

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2009 International Energy Conservation Code Residential (Secure)

  1. 1. 2009 IECC  Residential  Provision Review Bill Styczynski y y Al Bloom Lew Wilson Lew Wilson Steve Ryniewicz
  2. 2. Illinois Residential Energy Code  gy Facts: • Public Act 096‐ 0778, effective as of January  29, 2010, now includes residential buildings 29 2010 now includes residential buildings • Statewide energy code, based on the 2009  IECC, International Energy Conservation Code IECC I i lE C i C d • Required for the State of Illinois to receive  from the American Recovery and  Reinvestment Act
  3. 3. Illinois Residential Energy Code  gy What is included: at s c uded: • Statewide residential energy code • No unit of local government, including any home No unit of local government, including any home  rule unit, may regulate energy efficient building  standards for residential buildings in a manner  that is either less or more stringent than the  standards established pursuant to the Act  • N C t ti New Construction, additions, alterations,  dditi lt ti renovations, or repairs to an existing building,  building system, or portion thereof  building system or portion thereof
  4. 4. Illinois Residential Energy Code  gy Exempted communities include: Exempted communities include: • Approximately 30 communities are exempted  ‐ those that had adopted 2006 IECC prior to those that had adopted 2006 IECC prior to  May 15, 2009 or were more stringent than the  2006 IECC 2006 IECC • City of Chicago is also exempt based on  population exemption l i i
  5. 5. Illinois Residential Energy Code  gy IECC concerned with 4 main areas of a building: IECC concerned with 4 main areas of a building: • Building envelope • Mechanical system h i l • Electrical & Lighting system • Service water heating
  6. 6. Illinois Residential Energy Code  gy Residential buildings are defined as: Residential buildings are defined as: • A detached one‐family or two‐family dwelling • Any building that is three stories or less in Any building that is three stories or less in  height above grade that contains multiple  dwelling units, in which the occupants reside  dwelling units, in which the occupants reside on a primarily permanent basis • Including: townhome, apartment, convent, Including: townhome, apartment, convent,  monastery, fraternity or sorority house,  dormitory, and rooming house
  7. 7. Illinois Residential Energy Code  gy Exempted buildings include: Exempted buildings include: • Buildings otherwise exempt from the  provisions of a locally adopted building code  provisions of a locally adopted building code and buildings that do not contain conditioned  space. space • Buildings that do not use either electricity or  fossil fuel for comfort conditioning. f il f l f f di i i • Historic buildings
  8. 8. Building Examples g p In mixed occupancy  buildings of 3 stories or  less, the residential  portion of the building  needs to comply.
  9. 9. Design Requirements g q • Northern Illinois – Climate Zone 5A Northern Illinois  Climate Zone 5A • Indoor design temperatures for load  calculations: – Heating 72 degrees max. – C li 75 d Cooling 75 degrees min. i
  10. 10. Other General Requirements q • R value of insulation must be applied to R value of insulation must be applied to  insulation or a certificate provided for spray in  products • Markers showing thickness of blown in attic  insulation every 300 sq ft and readily visable • U‐Factors of fenestration products (windows,  door, skylights) • Protection of exposed foundation insulation  extending 6” below grade
  11. 11. Material Labeling Examples g p
  12. 12. Other General Requirements q • Maintenance instructions for equipment and Maintenance instructions for equipment and  systems requiring preventative maintenance • A permanent certificate posted on or in the A permanent certificate posted on or in the  electrical distribution panel listing prominent  R values of insulation including ceiling/roof,  R values of insulation including ceiling/roof walls, foundation, ducts outside conditioned  space and U values of fenestrations. space and U values of fenestrations
  13. 13. 2009 IECC Compliance Methods p • Prescriptive  ‐ Three Methods: p ‐ R‐Value Computation – easiest ‐ use  p chart for each element ‐ U‐Factor Alternative – some flexibility,  use chart for components h f ‐ Total UA Alternative – the most flexible  prescriptive compliance route – do  prescriptive compliance route do calculations or use REScheck software  from DOE
  14. 14. 2009 IECC Compliance Methods p • Performance ‐ The most flexible compliance route ‐ Allows for creative alternatives ll f i l i ‐ Possible cost reductions to achieve the  same minimum energy level ‐ Requires energy simulation software q gy
  15. 15. 2009 IECC Compliance Methods p
  16. 16. Prescriptive Compliance  R‐Value p p
  17. 17. Prescriptive Compliance  R‐Value p p
  18. 18. Prescriptive Compliance  R‐Value p p
  19. 19. Prescriptive Compliance  R‐Value p p • Ceilings with attic spaces: Where R‐38 is the  g p prescriptive requirement , R‐30 will satisfy the  requirement whenever the full height of the  uncompressed R‐30 insulation extends over   the top wall of the eave plate.
  20. 20. Prescriptive Compliance  R‐Value p p Ceilings without attic spaces (i.e. partial  Ceilings without attic spaces (i e partial cathedral ceiling spaces) • The ceiling insulation requirement in Table The ceiling insulation requirement in Table  402.1.1 is allowed to be reduced to R‐30 up to  a  limit of 500 s.f. or 20% of the total insulated  a limit of 500 s f or 20% of the total insulated ceiling area, whichever is less.
  21. 21. Prescriptive Compliance  R‐Value p p Access hatches & doors Access hatches & doors • Access from conditioned spaces to  unconditioned spaces (i.e. attics & crawl  unconditioned spaces (i e attics & crawl spaces) have to be weatherstripped and  insulated to a level equivelant with the  insulated to a level equivelant with the surrounding area. Provide a baffle for loose fill  insulation conditions. insulation conditions
  22. 22. Prescriptive Compliance  R‐Value p p Steel‐frame walls, ceilings & floors: St l f ll ili & fl • The 2009 IECC penalizes the construction of  steel framed members in the exterior  envelope. • In the R‐Value compliance method,  continuous exterior insulation is required. • In other methods, continuous exterior  insulation may be required. insulation may be required.
  23. 23. Prescriptive Compliance  R‐Value p p
  24. 24. Prescriptive Compliance  R‐Value p p Slab‐on‐grade floors  •Slab‐on‐grade floors  less than 12” below  l th 12” b l grade shall have  insulated slab edges  i l t d l b d table 402.1.1
  25. 25. Prescriptive Compliance  R‐Value p p Crawl Spaces Crawl Spaces • Insulate the floor above the crawl space and  include venting or include venting or • Insulate the walls of the crawl space and do  not vent to the outside h id – Must fasten insulation to walls; – Exposed earth requires Class 1 vapor  retarder
  26. 26. Prescriptive Compliance  R‐Value p p Fenestration • An area‐weighted average of the fenestration  products shall be permitted to satisfy the U products shall be permitted to satisfy the U‐ factor requirement – so you can have some non‐conforming so you can have some non‐conforming  windows/doors if the average is above the  requirement. requirement – Same is true for SHGC for more than 50% of  products. d t
  27. 27. Prescriptive Compliance  R‐Value p p Glazed fenestration exemption Glazed fenestration exemption • Up to 15 s.f. of glazed fenestration per  dwelling unit is permitted to be exempt from  dwelling unit is permitted to be exempt from the U‐factor and SHGC requirement • N Not allowed if utilizing the U‐factor alternative  ll d if ili i h Uf l i and Total UA approaches
  28. 28. Prescriptive Compliance  R‐Value p p Opaque door exemption Opaque door exemption • One side‐hinged opaque door assembly up to  24 s.f. of glazed fenestration is permitted to be  24 s f of glazed fenestration is permitted to be exempt from the U‐factor requirement. • N Not allowed if utilizing the U‐factor alternative  ll d if ili i h Uf l i and Total UA approaches
  29. 29. Prescriptive Compliance  R‐Value p p Replacement fenestration Replacement fenestration • When some or all of the fenestration is  replaced it must meet the new requirements replaced it must meet the new requirements • Not applicable if only replacing the glazing
  30. 30. Prescriptive Compliance  R‐Value p p Air leakage (mandatory)  building envelope Air leakage (mandatory) – building envelope • The thermal envelope must be durably sealed  to limit infiltration. The sealing shall allow for  to limit infiltration The sealing shall allow for differential expansion & contraction. The  following shall be caulked, gasketed,  following shall be caulked gasketed weatherstripped or otherwise sealed with an  air barrier material, suitable film or solid  air barrier material suitable film or solid material:
  31. 31. Prescriptive Compliance  R‐Value p p Air leakage (mandatory) – continued: 1. All joints, seams & penetrations 2. Around windows, doors & adjacent framing , j g 3. Utility penetrations 4. Dropped ceilings or chases adjacent to  4 Dropped ceilings or chases adjacent to thermal envelope 5. Knee walls 5 Knee walls 6. Walls & ceilings separating a garage from  conditioned space conditioned space
  32. 32. Prescriptive Compliance  R‐Value p p Air leakage (mandatory) – continued: 7.   Behind tubs and showers on exterior walls 8.   Common walls between dwelling units 8 Common walls between dwelling units 9.   Attic access openings 10. Rim joist junction 11. Other sources of infiltration
  33. 33. Prescriptive Compliance  R‐Value p p Air sealing and insulation • Building envelope and insulation shall be  demonstrated to comply with one of two  options – Blower door test to less than 7 air changes  per hour at 1.0psf (50Pa).  List of  requirements for test – Visual inspection by a code official or by an  approved party independent for the  installer i t ll
  34. 34. Prescriptive Compliance  R‐Value p p Fireplaces • New wood‐burning fireplaces shall have  gasketed doors and outdoor combustion air doors and outdoor combustion air
  35. 35. Prescriptive Compliance  R‐Value p p Fenestration air leakage • Windows, skylights and sliding glass doors  shall have an air infiltration rate of no more  shall have an air infiltration rate of no more than 0.3 cfm per s.f. and swinging doors no  more than 0.5 cfm per s.f. when tested to  more than 0.5 cfm per s.f. when tested to NFRC 400 or AAMA/WDMA/CSA  101/I.S.2/A440
  36. 36. Prescriptive Compliance  R‐Value p p Recessed lighting • Recessed lights installed in the building  thermal envelope shall be sealed to limit air  leakage and IC rated.  All recessed lights  g shall be sealed  g with a gasket or  caulk between the  housing and the  g ceiling.
  37. 37. Prescriptive Compliance  R‐Value p p Maximum fenestration U‐factor & SHGC (Mandatory) • If using Total UA alternative method the If using Total UA alternative method the  maximum avg.‐weighted U‐factor permitted  using trade‐offs is .48 using trade‐offs is 48
  38. 38. Prescriptive Compliance  R‐Value p p Vapor retarders • Vapor retarder requirements moved to IRC  and IBC. and IBC. • Our climate requires a Class I or II VR on the  interior (warm) side of frame walls interior (warm) side of frame walls • Class I – 4 mil. polyethylene l th l • Class II – kraft‐faced batt insulation b tt i l ti
  39. 39. Prescriptive Compliance  R‐Value p p Vapor retarders • Kraft‐faced batts and polyethylene sheets are  to be installed as a continuous barrier with all  to be installed as a continuous barrier with all joints taped and  sealed. Holes or sealed Holes or penetrations are to be sealed or taped.
  40. 40. Section 403 ‐ Systems y • Controls ‐ Thermostats • Ducts • Mechanical system piping insulation y pp g • Circulating hot water systems • Mechanical ventilation Mechanical ventilation • Equipment sizing • Multiple dwelling systems Multiple dwelling systems • Snow melt controls • Pools – Controls and heaters P l C l dh
  41. 41. Controls – GFA Systems y
  42. 42. Controls – GFA System Thermostats (Mandatory) • Gas forced air heating system shall have one  programmable thermostat per dwelling unit  capable of controlling heating/cooling to  maintain temperatures down to 55 F or up to  85 F 85 F • Thermostat shall initially be set to 70 F  maximum heat and no lower than 78 F  i h d l h 78 F maximum AC
  43. 43. Controls – Heat Pumps p (Mandatory) • Heat pumps with supplementary electric  resistance heat shall have controls that  resistance heat shall have controls that prevent operation when the heat pump  compressor can meet the heating load  compressor can meet the heating load demand
  44. 44. Ducts • INSULATION – MANDATORY • PRESCRIPTIVE NOT PERFORMANCE • Supply ducts in attics shall be insulated to R‐8 Supply ducts in attics shall be insulated to R‐8 • All other ducts shall be insulated to R‐6
  45. 45. Ducts • SEALING – MANDATORY • All ducts, air handlers, filter boxes and  building cavities used as ducts shall be sealed building cavities used as ducts shall be sealed • Duct tightness shall be tested unless the air  handler and all ducts are located within  handler and all ducts are located within conditioned space
  46. 46. Duct Leakage Testing g g • Preconstruction test: Leakage to outdoors less  than or equal to 8 cfm per 100 sq ft of  conditioned floor area with all registers sealed  closed during the test • Rough‐in test: Total leakage less than or equal Rough in test: Total leakage less than or equal  to 6 cfm per 100 sq ft of conditioned floor  area with all registers sealed closed during the  area with all registers sealed closed during the test
  47. 47. Mechanical System Piping Insulation (Mandatory) • Chilled or hot water systems • Mechanical system piping capable of carrying Mechanical system piping capable of carrying  fluids above 105 F or below 55 F shall be  insulated to R‐3 insulated to R‐3 • Typically ½” to 5/8” thick foam insulation
  48. 48. Circulating Hot Water Systems g y (Mandatory) • All circulating hot water piping shall be  insulated to at least R 2 insulated to at least R‐2 • System shall have an automatic or readily  accessible manual switch to turn circulating  accessible manual switch to turn circulating pump off when the system is not in use
  49. 49. Controls – GFA Systems y
  50. 50. Mechanical Ventilation (Mandatory) • Outdoor air intakes and exhausts shall have  automatic or gravity dampers that close when  automatic or gravity dampers that close when the ventilation system is not operating 
  51. 51. Equipment Sizing q p g (Mandatory) • Heating and cooling systems shall be sized in  accordance with Section M1401.3 of the  accordance with Section M1401.3 of the International Residential Code, not by general  rule of thumb calculations rule of thumb calculations
  52. 52. Systems  ‐Serving Multiple D. U.  y g p (Mandatory) • Systems serving multiple dwelling units shall  comply with the IECC Commercial Code,  comply with the IECC Commercial Code, Chapter 5 • Generally allows lower efficiency of furnaces Generally allows lower efficiency of furnaces  and boilers
  53. 53. Snow Melt Systems Controls y (Mandatory) • Snow and ice melting systems shall include  automatic controls capable of shutting off the  automatic controls capable of shutting off the system when: • Pavement temperature is above 50F Pavement temperature is above 50F • No precipitation is falling • An automatic or manual control will allow  shutoff when outdoor temp is above 40 F
  54. 54. Pools ‐ Heaters (Mandatory) • Pool heaters shall be equipped with a switch  to allow heater to be turned off without  to allow heater to be turned off without adjusting the thermostat setting • Pools heated by natural gas shall not have a Pools heated by natural gas shall not have a  continuously burning pilot light • Ti Time switches that automatically control  it h th t t ti ll t l heaters and pumps on preset schedule
  55. 55. Pools ‐ Covers • Heated pools shall be equipped with a vapor  retardant cover • Pools heated to more than 90 F shall have a Pools heated to more than 90 F shall have a  pool cover with insulation value of R‐12 • Pools deriving 60% of their heating energy Pools deriving 60% of their heating energy  from site recovered energy or solar energy  sources are exempt sources are exempt
  56. 56. Basement Foundation Insulation
  57. 57. Slab‐on‐Grade Foundation Insulation
  58. 58. Typical Exterior Wall Insulation yp
  59. 59. Exterior Wall Insulation at Gable
  60. 60. Raised Heel Truss Insulation
  61. 61. Questions?
  62. 62. Presented by: y B + F Architects, LLC Architects, LLC Lew Wilson Al Bloom Bill Styczynski Steven Ryniewicz AIA LEED AP Sullivan Goulette & Wilson President President Principal Ltd Styczynski Walker &  Styczynski Walker & 350 West Hubbard B+F Architects, LLC Associates – Architects FitzGerald Suite 350 PO Box 579 Associates Architects Chicago IL 60654 LaGrange, IL 60525 Define Your Own Sense of  912 West Lake Street Chicago lwilson@sgwarch.com Home Illinois 60607-1707 www.sullivangoulette.com g albertbloom@gmail.com @g PO Box 1253 t 312 563 9100 x210 P: 312.988.7412 ext.204 P: 312-480-5847 Westmont. Illinois 60559 f 312 563 1919 aws@swa‐architects.com d 312 252 9210 www.swa‐architects.com m 312 446 0133 Office 630‐789‐2513 x102 www.fitzgeraldassociates.net Mobile 630‐728‐6889

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