Tag Archives: Energy Codes

Energy codes set the minimum standard for the energy efficiency of a building to ensure that homes and commercial buildings reduce their energy use, lower utility bills and improve occupant comfort.

The International Code Council (ICC) and the American Society of Heating Refrigerating, and Air-Conditioning Engineers (ASHRAE) develop and update building codes and standards on three-year cycles. The U.S. Department of Energy reviews them to determine their efficiency and cost-effectiveness and makes recommendations for state adoption.

The ICC 2009 International Energy Conservation Code (IECC) is the current model energy code.  It references ASHRAE Standard 90.1-2007 for commercial construction. It is approximately 15 percent more energy efficient than the 2006 IECC.

Energy Codes address wall and ceiling insulation, window and door specifications, HVAC and ventilation equipment efficiency and lighting fixtures, among other building features.

Residential Energy Code Adoption

Commercial Energy Code Adoption

Missouri does not have a mandatory statewide energy code, however all local jurisdictions except class III counties have the right to adopt an energy code.