Village of Frankfort, Illinois

April 21, 2010

The 2009 International Energy Conservation Code Overview

Presented By:

Don Plass, C.B.O., M.C.P., LEED APDirector of Code EnforcementVillage 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 BuildingsOne and Two Family dwellings, TownhousesMultifamily dwellings three-stories or less in height

Commercial BuildingsMultifamily dwellings four stories or greater in

heightEight global climate zonesCompliance assessment choices

Prescriptive criteria-for ease of enforcementSimulated Performance criteria-for design flexibility

2009 IECC

Changes in Residential RequirementsStringency-some key differencesNew requirements

Building envelope tightnessDuct testingLighting equipmentPool controls and coversSnow melt controls

Moisture control requirements moved to IRCNo 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 0.050Minimum 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 that50 % of lamps in permanently installed lighting fixtures shall be high-efficacy lamps

Pool Controls and Covers – 2009 IECC

A new Section 403.9in pools requires a readilyaccessible on/off switch,time switches for heaters and pumps along withpool 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) setsthe standard for heatingand cooling systems to be “as proposed”This removes justificationfor 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 IECCDOE does not recognize the IRC for energyIRS does not recognize the IRC for tax creditsFHA does not recognize the IRCIllinois 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 StrictThe 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 1AdministrativeChapter 2DefinitionsChapter 3Climate ZonesChapter 4Residential Energy EfficiencyChapter 5Commercial Energy

EfficiencyChapter 6Referenced Standards

Overview of 2009 IECC Residential

The focus is on the building envelopeDuctwork – seal and insulateThere are limited space heating, AC and

water heating requirementsNo appliance requirementsLighting 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 additionsi.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, RepairsMust conform to new work standardsExisting do not need to comply (if not changed)Addition can comply alone or with existing

structureExceptions:

Installing storm windows over existing fenestrationGlass only replacementsExposed, existing ceiling, wall or floor cavities if

already filled with insulation Where existing roof, wall or floor cavity is not

exposedRe-roofing when neither sheathing nor insulation is

exposedInsulate above or below ceiling

Attics without insulation in the cavities

Construction Documents

Required Information on plansInsulation materials and R-ValuesFenestration and U-FactorsMechanical system design criteriaMechanical and service water heating systems

and equipment types, along with sizes and efficiencies

Duct sealingDuct and pipe insulation and locationsLighting fixture schedule/showing high-efficacy

lamps

Chapter 2 - DefinitionsAir 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/UU-Factor: Thermal Transmittance U=R/1Code: 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 ZonesListed by state and countyInterior 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

None Needed

Total Building

“UA” Trade Off

REScheck Software

Energy Analysis

SoftwareFor

Example:REM/DesignREM/Rate

Three Code Compliance Options

Prescriptive

R-Values402.1.1

U-Factor and “UA”

Alternatives

U-Factor402.1.3

Total Building UA

402.1.4

Simulated Performance(Software)

Simulated PerformanceAlternative

405

Insulation and Fenestration Requirements by Climate Zone

U-Factor Requirements by Climate Zone

CLIMATE ZONE

FENESTRATION U-FACTOR

SKYLIGHT U-FACTOR

CEILING U-FACTOR

FRAME WALL

U-FACTOR

MASS WALL

U-FACTORb

FLOOR U-FACTOR

BASEMENT WALL

U-FACTORd

CRAWL SPACE WALL

U-FACTORc

1 1.20 0.75 0.035 0.082 0.197 0.064 0.360 0.477 2 0.65 0.75 0.035 0.082 0.165 0.064 0.360 0.477 3 0.50 0.65 0.035 0.082 0.141 0.047 0.091c 0.136

4 except Marine

0.35 0.60 0.030 0.082 0.141 0.047 0.059 0.065

5 and Marine 4

0.35 0.60 0.030 0.057 0.082 0.033 0.059 0.065

6 0.35 0.60 0.026 0.057 0.060 0.033 0.050 0.065 7 and 8 0.35 0.60 0.026 0.057 0.057 0.028 0.050 0.065

U-Factor and Total UA (REScheck)

U-Factor Alternative Similar to Prescriptive but uses U-Factors

instead of R-ValuesAllows for innovative or less common

construction

Total UA AlternativeSame as U-Factor Alternative but allows

trade-offs across all envelope components

Attic Access HatchesWeatherstrip and insulate doors/panels from

conditioned spaces to unconditioned spaces(i.e. attics and crawl spaces)Insulate to a level equivalent to surrounding

surfacesProvide 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 LeakageRecessed Lighting FixturesMaximum Fenestration U-Factor and SHGCFireplaces

Building Thermal EnvelopeThe following shall be caulked, gasketed ,

weatherstripped or otherwise sealed with an air barrier material, suitable fim or solid material

All joints, seams and penetrationsSite built windows, doors and skylightsOpenings between window and door assemblies

and their respective jambs and framingUtility penetrationsDropped ceilings or chases adjacent to the

thermal envelope

Knee wallsWalls and ceilings separating a garage from

conditioned spacesBehind tub and showers on exterior wallsCommon walls between dwelling unitsAttic access openingsRim joist junctionsAll other sources of infiltration

Areas for Air LeakageWindows/doorsBetween sole plateFloors and exterior

wall panelsPlumbingElectricalService accessRecessed lightingRim Joist junction

Air Sealing and Insulation-2 OptionsTwo Options to Demonstrate Compliance Blower Door-When tested air leakage is <7

ACH when tested with a blower door at 50 PascalsTesting 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)

Recessed LightingRecessed lighting in the building thermal

envelope shall be sealed to limit air leakage between conditioned space and unconditioned space

All recessed luminaries shall be sealed with a gasket or caulk between the housing and the interior wall

Mechanical Equipment

Equipment efficiency is setby Federal Law-Not the I-Codes

Mechanical System Controls (Mandatory)Programmable thermostat-controls Ducts

Sealing (Mandatory)Insulation (Prescriptive)

HVAC Piping InsulationCirculating Hot water systemsVentilationEquipment sizingSnow melt controlsPools

Programmable Thermostat

If forced air: At least one programmable thremostat per dwelling unit

Programmed with:Heating temperature set point no higher than

70 degreesCooling temperature set point no lower than

78 degrees

Ducts

Insulation (Prescriptive)Ducts outside the building envelope

shall be R-8; all other ducts: R-6

Sealing (Mandatory)Joints and seams shall comply with IRC

Section M1601.4.1

Building framing cavities shall not be used as supply ducts

Piping Insulation

R-3 required on HVAC systemsException: Piping that conveys fluids

between 55 and 105 degrees

R-2 required on all circulating domestic hot water systems

The system also requires a readily accessible manual switch

An inspection of all pipe insualtion is required prior to cover up

Ventilation and Equipment Sizing

VentilationOutdoor air intakes and exhausts shall have

automatic or gravity dampers that close when the ventilation system is not working

Equipment SizingIECC references Section M1401.3 of the IRC Load calculations determine proper size of

equipmentCalcualtions in accordance with Manual J

Snow Melt Controls

Pavement temperature > 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 offException Public Health requires 24 hour

operationPump systems with solar heat recvoery

Fireplaces

New wood burning (Masonry) fireplacesshall have gasketed doors and outsidecombustion 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 equipmentAllows 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 strictlySimilar to ENERGY STAR Home guidelines

Code official has the final say and must approve:Software chosenWorksheets 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 inspectionsCertificate is required

CertificatePermanently posted on the electrical distribution

panelDon’t cover or obstruct the visibility of other

required labelsInclude the following information

R-values of insulation installed for the thermal buildingenvelope including ducts outsideconditioned spaces

U-factors for fenestrationSHGC for fenestrationHVAC efficiencies and typesSWH equipment

Helpful Websites

www.illinoisenergy.org Department of Commerce and Economic Opportunity (DCEO)

www.energycodes.gov DOEwww.ilga.gov Illinois General

Assemblywww.cdb.state.il.us Capital Development

Boardwww.iccsafe.org International Code

Council

Questions?

Thanks for inviting me

Don PlassDirector of Code Enforcement Village of Hoffman Estates847-781-2637don.plass@hoffmanestates.org