The 2012 International Energy Conservation Code

The 2012 International Energy Conservation Code (IECC) marked an important step forward in efficiency for the nation. After two decades of only modest building efficiency code gains, the 2009 and 2012 IECC represented a 30 percent efficiency boost compared to the 2006 IECC.  The Energy Efficient Codes Coalition worked with a broad-based coalition of government and business leaders, regional energy efficiency alliances, academics, think tanks, utilities, conservation groups, utilities, low-income housing groups, and energy consumers to develop and promote the adoption of proposals that use readily available, “state-of-the-shelf” technologies to boost energy efficiency.

Our proposal – called “The 30 Percent Solution” – was the first comprehensive efficiency proposal ever offered before the International Code Council. After 14 of its 21 provisions were incorporated into the 2009 IECC, we improved and offered the remaining provisions during the 2012 IECC development cycle.  EECC’s “whole house” approach recognizes the longevity of improvements and the interrelationship between efficiency measures (offering improvements to all facets of building construction – from insulation and fenestration to air changes, ductwork, and builder certification, to name a few).

The results of this comprehensive approach are best depicted by a chart developed by the U.S. Department of Energy, which illustrates both the modest 1 percent to 2 percent efficiency gains achieved in residential code cycles between 1986 and the 2006 IECC and the historic 30 percent gains achieved by the 2009 and 2012 IECC combined.

U.S. Energy Efficiency Gains (1975 – 2012)

U.S. Energy Efficiency Gains (1975 – 2012)

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