Massachusetts Stretches the Energy Code

Optional Energy Performance Measures in Massachusetts

A recently adopted addendum to the Massachusetts state building codes, known as the “stretch code,” exceeds the 2009 International Energy Conservation Code (IECC) by 20%. The optional code sets performance standards for commercial buildings over 5,000 ft² (460 m²) and residential buildings (see table above). According to Mike Guigli, technical director for the Department of Public Safety, “about a dozen municipalities at this point in time are considering adoption of the stretch code.” All buildings in the state will need to meet 2009 IECC standards when they become the baseline code for the state in 2010.