Oregon

Summary

The Oregon 2011 Residential Specialty Code (ORSC) is a mandatory state developed code that meets or exceeds the requirements of the 2009 IECC and is estimated to achieve 10-15% greater energy efficiency savings than the 2008 ORSC. The Oregon Residential (Provisions) Reach Code (ORRC) is also a state developed code, which allows projects to voluntarily go beyond minimum standard and further reduce energy consumption. Energy performance criteria are outlined for residential buildings, addressing thermal envelope components and energy efficiency requirements for HVAC, hot water and lighting. The codes allow a prescriptive path or simulated reference-building calculation to show compliance. Compliance can also be achieved for the ORRC using a point based energy efficiency system (Alternative Systems Analysis).

The first building energy efficiency requirements for residential buildings in Oregon were adopted in 2003. The latest ORSC/ORRC and surrounding policy systems incorporate a number of dynamic initiatives to improve energy efficiency, including mandatory high efficiency mechanical and lighting equipment, minimum natural ventilation requirements, ‘Code change’ training for all building officials and inspectors and mandatory selection of additional efficiency packages. Additionally, Oregon is assisting with the Department of Energy's ‘Compliance Pilot Study’ and has established the ‘Enforcement Program’ to assist local jurisdictions with meeting compliance objectives.

General Information

Full Title of Code

Oregon 2011 Residential Specialty Code (ORSC) + 2011 Oregon Residential (Provisions) Reach Code (ORRC).

Year of Adoption

2011

Date of Enforcement

Friday, July 1, 2011

Authority in Charge

Oregon Building Codes Division (BCD).

Link

http://ecodes.biz/ecodes_support/free_resources/Oregon/11_Residential/11_ORResid...

Link to Relevant Web Page

http://energycodesocean.org/state-country/oregon

Remit of Code

Geographical Coverage

Oregon

Code set at:

Regional/States Level

Coverage

Coverage of Building Code:

  • Residential buildings
    • One family
    • Multiple family buildings
      • Requirements in Chapter 11, Energy Efficiency, ORSC apply statewide to all one and two family structures, townhouses, multi-family (3 stories and less).

GBPN Climate Classification:

  • Heating Based:
    Under IECC the state is covered by national climate zones 5 & 4 marine.

Type of Building Code

Type of Building Code:

  • Model code, frame or actual code
  • Prescriptive Codes:
    Prescriptive compliance includes selection of two additional efficiency measures (one each from a table Envelope Enhancements and a table of Equipment Conservation Measures); Envelope performance may use-trade-offs among opaque and glazing assemblies.
  • Trade Off:
    The only trade-offs allowed are changes to building envelope components through the alternative systems path.
  • Performance Codes for Refurbishments:
    Partially, depends on the extent of the refurbishment.
  • Performance Codes for New Builds:
    Partially, performance value is based on an equivalent reference building calculation.
  • Model / reference Building:
    Performance (modeling) compliance requires that design EUI must be less than baseline code EUI (reference building).
  • Mix of different models / Hybrids:
    (ORRC) Alternative Systems Analysis: Residential dwellings using the energy performance path shall comply with the provisions in section 1305.

Energy Covered

Basis for Energy Requirements:

  • Overall performance frame:
    Performance (modeling) compliance requires that design EUI must be less than baseline code EUI (reference building). The 2011 Residential Code requires selection of one additional envelope measure and one conservation measure from the relevant tables. The measures selected are at the option of the designer/builder.The Envelope enhancement method and Conservation method.
  • Life Cycle Assessment considered (embedded energy):
    Not at this stage, it has been looked at for future code updates.

Energy Uses and Functions Covered by the Code:

  • Heating
  • Cooling
  • Ventilation
  • Airtightness
  • Hot water
  • Lighting
  • Design, position & orientation of building
  • Natural ventilation
  • Daylighting requirements
  • Renewable Energy (solar, PV, others):
    No mandatory requirements with ORSC, but for residential, Conservation Measures F and G include solar photovoltaic and thermal systems options. There are no other requirements within code. The ORRC has requirements for Residential dwellings, shall provide a means for the installation of future onsite energy generation facilities - Solar Hot Water or PV systems.

Enforcement

Enforcement Status of Code:

Mandatory

Type of Enforcement:

  • Local enforcement
  • Third party inspection
  • Central enforcement

On-site Inspections Occur

  • During construction
  • Post completion

Certification to Support Enforcement of Code:

  • Inspection of boilers
  • Inspection of HVAC systems

Penalties for Non-compliance:

  • Refusal of permission to occupy
  • Refusal of permission to construct

Measures Supporting Enforcement:

  • Commissioning requirements
  • Training of Inspectors

Values for New Buildings

Standard Base Case Residential Building - ORSC

GBPN Climate Classification

Heating based

Coefficient for Comparison of Climate Zones

0.00

MeanMinMax
HDD (°C)2630--
CDD (°C)480--
U-Value (W/m²K)
Roof0.18Roof20.24
Wall0.34Wall2-
Floor0.16Floor2-
Window1.99Window2-
Others3.41--
Overall U-Value---
Window1Window2
G Value/SHGC--
Visible Transmission--
Percent--

Other Requirements Set for:

  • Ventilation:
    Insulation, zoning and HVAC contol and efficiency performance requirements.
  • Pressure testing for ducting
  • Domestic Hot Water COP - Heat Pump:
    Federal regulations set pre-emptive efficiency requirements. If a builder/designer selects an additional conservation measure for a higher efficiency, then that efficiency level must be met for that equipment. Piping insulation requirements
  • Technical HVAC systems:
    Coefficient of performance of HVAC system is 2.9-3.2
  • Efficient Lighting

Log Homes Only - ORSC

GBPN Climate Classification

Heating based

Coefficient for Comparison of Climate Zones

0.00

MeanMinMax
HDD (°C)2630--
CDD (°C)480--
U-Value (W/m²K)
Roof0.14Roof20.15
Wall-Wall2-
Floor0.16Floor2-
Window1.99Window2-
Others3.41--
Overall U-Value---
Window1Window2
G Value/SHGC--
Visible Transmission--
Percent--

Other Requirements Set for:

  • Ventilation:
    Insulation, zoning and HVAC contol and efficiency performance requirements.
  • Pressure testing for ducting
  • Domestic Hot Water COP - Heat Pump:
    Federal regulations set preemptive efficiency requirements. If a builder/designer selects an additional conservation measure for a higher efficiency, then that efficiency level must be met for that equipment. Piping insulation requirements.
  • Technical HVAC systems:
    Coefficient of performance of HVAC system is 2.9-3.2
  • Efficient Lighting

Standard Base Case Residential Building - ORRC.

GBPN Climate Classification

Heating based

Coefficient for Comparison of Climate Zones

0.00

MeanMinMax
HDD (°C)2630--
CDD (°C)480--

Humidity

N/A

U-Value (W/m²K)
Roof0.1Roof20.15
Wall0.15Wall2-
Floor0.16Floor2-
Window1.7Window2-
Others2.84--
Overall U-Value---
Window1Window2
G Value/SHGC--
Visible Transmission--
Percent--

Other Requirements Set for:

  • Ventilation:
    Insulation, zoning and HVAC contol and efficiency performance requirements.
  • Pressure testing for ducting
  • Domestic Hot Water COP - Heat Pump:
    Federal regulations set preemptive efficiency requirements. If a builder/designer selects an additional conservation measure for a higher efficiency, then that efficiency level must be met for that equipment. Piping insulation requirements.
  • Technical HVAC systems
  • Efficient Lighting

Log Homes Only - ORRC.

GBPN Climate Classification

Heating based

Coefficient for Comparison of Climate Zones

0.00

MeanMinMax
HDD (°C)2630--
CDD (°C)480--

Humidity

N/A

U-Value (W/m²K)
Roof0.14Roof20.15
Wall-Wall2-
Floor0.16Floor2-
Window1.7Window2-
Others2.84--
Overall U-Value---
Window1Window2
G Value/SHGC--
Visible Transmission--
Percent--

Other Requirements Set for:

  • Ventilation:
    Insulation, zoning and HVAC contol and efficiency performance requirements.
  • Pressure testing for ducting
  • Domestic Hot Water COP - Heat Pump:
    Federal regulations set preemptive efficiency requirements. If a builder/designer selects an additional conservation measure for a higher efficiency, then that efficiency level must be met for that equipment. Piping insulation requirements.
  • Technical HVAC systems
  • Efficient Lighting

Code History and Future Targets

General Process in Setting Requirements:

  • How far in advance are future targets set?:
    3 years.
    3 years code cycles.
  • Stakeholders are informed of future targets far in advance

Zero Energy Targets:

  • All end uses are not included
  • There is a realistic roadmap in place:
    P-SB 79 contains a strategy for continually improving the codes where technically and economically feasible. The BCD and the Boards develop reasonable goals for efficiency improvements in the codes.
  • National Target date for nZEB:
    P-Section 6 of Senate Bill 79 (approved in 2009) encourages continual improvements in building energy efficiency and references the Architecture 2030 Challenge as a target.
  • Special Requirements for public buildings:
    Oregon's State Energy Efficiency Design Program (SEED) was originally established in 1991. From 2001, all state facilities constructed on or after June 30, 2001, must exceed the energy conservation provisions of the Oregon State Building Code by at least 20%. Existing buildings must reduce energy use by 20% compared to the building's baseline energy use in 2000. Energy conservation and efficiency projects in existing buildings can be funded through energy savings performance contracts.
  • Links

Graph or Table

http://energycodesocean.org/state-country/oregon

Number of Earlier Codes

3

Current Defined Levels beyond Minimum Standard (present code)

1

Is there a Zero Energy Target

2030

Multiple set of data:

  • Levels beyond minimum:
    The voluntary 2011 Oregon Residential Reach Code (ORRC) is available and based on the 2012 IECC and IgCC. The optional reach code encompasses construction methods and technology designed to increase energy efficiency over the mandatory codes for builders that choose to incorporate them.
  • Year historic or aspirational codes (planned) :
    2003
  • Baseline (actual code if nothing else):
    2008
  • Actual level of energy consumption in target
    • Relative target in percent:
      10-15%
    • Comments:
      10-15% greater energy savings than the 2008 ORSC.
  • Levels set in energy frame

Supporting Measures

Incentives/Rewards to Encourage People to go beyond Minimum Level?

State rebate programs, utility loan programs, utility rebate programs.

Involvement of Stakeholders in the Development of Codes

Code amendment process is a public process. Stakeholders are notified 45 days in advance of the commencement of the code amendment process. The division utilizes code change committees that are open to the public and web-streamed. Code change proposals may be submitted to the code change committees for consideration.

Level of Training Provided to Stakeholders Following Implementation of Code?

‘Code change’ training is required for building officials and inspectors and electrical and plumbing licensees. State statues provide for a surcharge on local building permits to be used for educational purposes. BCD uses the Request for Proposals (RFP) process for code change courses and approves content through the contracting process.

Provision of Appropriate Information for General Public

BCD publishes public notices each time the code is amended. The division has also issued press releases to ensure the public is aware of changes to the code.

Education Systems to Ensure Capacity

No information at this stage.

Supporting Labeling Schemes

EnergyStar.

Supporting Certification Schemes

LEED.

Codes Free to Access?

http://ecodes.biz/ecodes_support/free_resources/Oregon/11_Residential/11_ORResidential_main.html

Evaluation

Compliance assessment