Significant changes to the commercial provisions in 2012 IECC

摘要

The 2012 edition of the International Energy Conservation Code (IECC) expanded the code requirements for building systems and equipment over those of the 2009 edition to focus on conservation over the life of the building. A major formatting change was also made in that the residential and commercial provisions were split up to provide the commercial provisions in the front with a "C" preceding each section and the residential provisions in the back with a preceding "R."