2009 International Energy Code Presentation by Don Plass

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  History of Illinois Energy Efficiency Building Act  Residential Applications of the 2009 IECC  RESCheck/REM Rate

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

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 

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.

 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

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

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.

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

2000 International Energy Conservation Code (IECC)

 The first published International Code Council (ICC)

Energy Code  19 Climate Zones (CZ)

 198 pages in length

2006 IECC  Reduced number of Climate Zones to 8 Zones  Reduced to 63 pages

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

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

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

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

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

Lighting Equipment – 2009 IECC

 A new requirement in Section 404 that

50 % of lamps in permanently installed lighting fixtures shall be high-efficacy lamps

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

Snow Melt Controls – 2009 IECC

 A new Section 403.8 has been added for snow melt

controls

Moisture Control Requirements to IRC

 Moisture control requirements (Vapor Barriers) have

been moved to the 2009 International Residential Code

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

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

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

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

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

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

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

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)

Residential Applications of the 2009 IECC (Chapter 4)  Structure of the 2009 IECC  Chapter 1

 Chapter 2  Chapter 3  Chapter 4

 Chapter 5  Chapter 6

Administrative Definitions Climate Zones Residential Energy Efficiency Commercial Energy Efficiency Referenced Standards

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

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

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

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

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

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

 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.

 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.

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

Chapter 4 – Residential Energy Efficiency  Code Compliance Tools

Prescriptive

Total Building “UA” Trade Off

None Needed

REScheck Software

Energy Analysis

Software For Example: REM/Design REM/Rate

 Three Code Compliance Options

Prescriptive

U-Factor and “UA” Alternatives

Simulated Performance (Software)

U-Factor 402.1.3 Total Building UA 402.1.4

Simulated Performance Alternative 405

R-Values 402.1.1

Insulation and Fenestration Requirements by Climate Zone b

CLIMATE FENESTRATION SKYLIGHT b ZONE U-FACTOR U-FACTOR

1 2 3 4 except Marine 5 and Marine 4 6 7 and 8

GLAZED b,e FENESTRATION SHGC

CEILING WOOD R-VALUE FRAME WALL R-VALUE

MASS WALL i R-VALUE

FLOOR RVALUE

BASEMENT WALL R-VALUE

c

d

SLAB R-VALUE & DEPTH

CRAWL c SPACE WALL R-VALUE

1.20 0.65j 0.50j 0.35

0.75 0.75 0.65 0.60

0.30 0.30 0.30 NR

30 30 30 38

13 13 13 13

3/4 4/6 5/8 5 / 10

13 13 19 19

0 0 5 / 13f 10 / 13

0 0 0 10, 2ft

0 0 5 / 13 10 / 13

0.35

0.60

NR

38

20 or 13+5h

13 / 17

30g

10 / 13

10, 2 ft

10 / 13

0.35 0.35

0.60 0.60

NR NR

49 49

19 or 13+5h 21

15 / 19 19 / 21

30g 38g

15 / 19 15 / 19

10, 4 ft 10, 4 ft

10 / 13 10 / 13

U-Factor Requirements by Climate Zone

CLIMATE ZONE

1 2 3 4 except Marine 5 and Marine 4 6 7 and 8

FENESTRATION U-FACTOR

SKYLIGHT U-FACTOR

CEILING U-FACTOR

FRAME WALL U-FACTOR

MASS WALL Ub FACTOR

FLOOR BASEMENT WALL U-FACTOR d U-FACTOR

CRAWL SPACE WALL c U-FACTOR

1.20 0.65 0.50 0.35

0.75 0.75 0.65 0.60

0.035 0.035 0.035 0.030

0.082 0.082 0.082 0.082

0.197 0.165 0.141 0.141

0.064 0.064 0.047 0.047

0.360 0.360 0.091c 0.059

0.477 0.477 0.136 0.065

0.35

0.60

0.030

0.057

0.082

0.033

0.059

0.065

0.35 0.35

0.60 0.60

0.026 0.026

0.057 0.057

0.060 0.057

0.033 0.028

0.050 0.050

0.065 0.065

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

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

Air Leakage (Mandatory for all)  Air Leakage  Recessed Lighting Fixtures  Maximum Fenestration U-Factor and SHGC

 Fireplaces

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

 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

Areas for Air Leakage  Windows/doors

 Between sole plate  Floors and exterior

    

wall panels Plumbing Electrical Service access Recessed lighting Rim Joist junction

Air Sealing and Insulation-2 Options  Two Options to Demonstrate Compliance  Blower Door-When tested air leakage is 50 degrees and no precipitation is

falling and when the outdoor temperature is > 40 degrees, the system shall shut down

Pools  Pool heaters shall have a readily accessible shut off switch  Gas fired heaters shall not have continuously burning pilot

 Timers to automatically turn on and off  Exception Public Health requires 24 hour operation  Pump systems with solar heat recvoery

Fireplaces  New wood burning (Masonry) fireplaces

shall have gasketed doors and outside combustion air

Lighting Equipment  A minimum of 50% of the lamps in permanently installed

lighting fixtures shall be high - efficacy

 Prescriptive method

Simulated Performance Alternative  Local official may approve the use of specific computer

software programs. i.e. REMrate  Includes both envelope and equipment  Allows greater flexibility, allows credits such as:  High efficiency furnaces  Tight ducts that MUST be tested (Duct Blaster)  Exterior shading, favorable orientation

 Table 405.5.2(1) shall be followed strictly  Similar to ENERGY STAR Home guidelines

 Code official has the final say and must approve:  Software chosen  Worksheets to be submitted

 Mandatory requirements are required for this method also  Energy prices taken from approved source by code official  All work is subject to inspections  Certificate is required

Certificate  Permanently posted on the electrical distribution panel

 Don’t cover or obstruct the visibility of other required labels  Include the following information  R-values of insulation installed for the thermal building

envelope including ducts outside conditioned spaces  U-factors for fenestration  SHGC for fenestration  HVAC efficiencies and types  SWH equipment

Helpful Websites  www.illinoisenergy.org Department of Commerce and

Economic Opportunity (DCEO)  www.energycodes.gov DOE  www.ilga.gov Illinois General Assembly  www.cdb.state.il.us Capital Development Board  www.iccsafe.org International Code Council

Questions?  Thanks for inviting me  Don Plass

Director of Code Enforcement Village of Hoffman Estates 847-781-2637 [email protected]