Ohio Adopts New Residential Building Energy Code

May 31, 2012

Ohio adopted a new residential building code that will affect new homes being built in the state starting in 2013. Ohio has not updated its residential building energy code since 2009, and the previous code was based on the 2006 International Energy Conservation Code (IECC). You can read about the 2006 IECC requirements on the U.S. Department of Energy Building Energy Codes Website.

Ohio writes its own energy codes, and the new code is based on the 2009 IECC. DOE helped Ohio analyze the effects of adopting the newer code in a publication titled Impacts of the 2009 IECC at the State Level (PDF 6.04 MB).

Although the new residential building code will increase the initial cost of construction, other estimates indicated that the changes will save homeowners about $230 per year in energy costs. The changes to the code include:

• Raising minimum insulation for exterior walls
• Raising minimum R-value of basement walls
• Requiring the installation of carbon monoxide detectors
• Requiring 75% of lights in new homes be high efficiency
• Mandating homes meet an air-tightness test
• Increasing window efficiency

Read more about the new Ohio residential building codes in a May 28 newspaper article published in The Columbus Dispatch.