2015 IECC Determination of Energy Savings: Preliminary Technical Analysis

This report documents the technical analysis used to evaluate whether residential buildings constructed to meet the requirements of the 2015 IECC would result in energy efficiency improvements over residential buildings constructed to meet the requirements of the previous edition, the 2012 IECC. PNNL considered all code change proposals approved for inclusion in the 2015 IECC during the ICC code development cycle2, and evaluated their combined impact on a suite of prototypical residential building energy models across all U.S. climate zones.

Publication Date: 
Sunday, August 31, 2014