The next commercial energy code cycle for most states is the IECC 2015 code and ASHRAE 90.1-2013 alternative path. For some states, the new code has already gone into effect as of January 1, 2017, but the exact timing of implementation depends on each state. Remember that each state is in a code cycle, which lasts two to three years. So, theoretically, your state could switch in the next few months or in a few years. Check the status of your state energy code at energycodes.gov.
Also, before you continue reading about the latest code cycle, you might want to revisit my primer on ensuring commercial code compliance in a post I wrote back in 2014. That blog breaks down a lot of the background information pertinent to understanding the current code landscape, such as the difference between IECC and ASHRAE.
First, it's important to know that I base the most recent code cycle changes on comparisons of the IECC 2012 code and the ASHRAE 90.1-2010 Standard. If your state's current code is based on the older IECC 2009 and ASHRAE 90.1-2007 Standard, you will see more significant envelope changes. Many states currently at the IECC 2009 code are bypassing IECC 2012 altogether and adopting IECC 2015. This is a large jump, and many metal building contractors will feel the pressure. If you haven't used Liner Systems (Ls) or Filled Cavity/Long Tab Systems in the past, you will be required to start using them.
Bill Beals, District Manager of Therm-All Insulation, is a 30-year veteran of the metal building industry. Bill is a contributing member of several committees, including the Metal Building Manufacturers Association (MBMA) Energy Committee and the National Insulation Association (NIA) Laminators Committee.
Bill also belongs to the International Code Council (ICC) and is often invited to share his extensive energy code knowledge through presentations at industry conferences, most recently including The 45th Annual Metal Building Contractors and Erectors (MBCEA) Conference. Bill has contributed to many articles and reference guides, and authors Therm-All's bi-monthly commercial energy codes blog called "The Code Man".