International Energy Conservation Code
The 2009 International Energy Conservation Code, incorporated into the Virginia Uniform Statewide Building Code (13VAC5-63), effective March 1, 2011.
International Energy Conservation Code (2009)
Virginia's 2009-cycle USBC referenced the 2009 IECC as the state energy standard, with Virginia amendments, effective March 1, 2011. It covers minimum energy-efficiency requirements for the building envelope, mechanical systems, lighting, and service water heating. The full text below is reproduced from the 2009 edition as adopted into law, sourced from public.resource.org.
- Administration
This chapter outlines the administrative requirements for the International Energy Conservation Code, covering scope, alternative materials, documentation, inspections, fees, and appeals.
- Climate Zones
This chapter defines climate zones for buildings, sets interior design temperatures for heating and cooling, and specifies identification requirements for materials, systems, and equipment.
- Commercial Energy Efficiency
This chapter sets forth energy efficiency requirements for commercial buildings, addressing aspects such as building envelope, mechanical systems, service water heating, electrical power, and overall building performance.
- Definitions
This chapter defines key words and terms used throughout the code to ensure consistent interpretation and application of its requirements.
- Referenced Standards
- Residential Energy Efficiency
This chapter outlines mandatory and prescriptive energy efficiency requirements for residential buildings, including thermal envelope, HVAC systems, and lighting.