Wood and wood-based products are widely used in building construction, due in part to favorable energy performance characteristics. As energy codes become more demanding, use of wood products in the building envelope provides greater advantages due to wood’s natural thermal resistance and low embodied energy combined with excellent structural performance and constructability. Ensuring the building envelope achieves ever-increasing levels of performance can be difficult, especially for walls where framing, fenestration, and insulation details affect overall energy performance. DCA 7 – Meeting Residential Energy Requirements with Wood-Frame Construction – 2012 IECC Version provides ways to economically meet the residential requirement of the 2012 International Energy Conservation Code (IECC).