The ERI path is an alternative to the 'prescriptive' aspects of the code (see 402.1 table below) . This provides more flexibility for meeting code, not to mention Mass Save New Construction rebate opportunities (IMO, a no brainer for every new residential build).
Builders and designers that specialize in energy efficient buildings will not have a problem with the shift to the 2012 IECC. Yet other builders may have some serious wake-up calls. Fortunately there are some proven strategies that will all but ensure compliance with the 2012 IECC and pending Stretch codes.
In the spirit of ‘year in review’ countdowns, here are my....
8 strategies to surpass the 2012 IECC residential energy code