Model building code 30 percent more energy efficient

Changes made to the International Energy Conservation Code will increase the predicted energy efficiency of homes and commercial buildings by 30 percent over ASHRAE Standard 90.1-2004. Members of the International Code Council (ICC) approved the changes nearly unanimously in October 2010; they will be available for jurisdictions to adopt in April 2011, when the 2012 IECC is published, according to a Nov. 30 GreenSource report.