IECC Compliance Guide For Homes in the District of Columbia

This guide is an energy code compliance aid based upon 2009 IECC (International Energy Conservation Code) requirements. This guide will provide insulating recommendations, required U-Factors for windows, skylights, and doors, as well as the R-value requirements for walls and foundations, based upon the 2009 IECC requirements for your climate zone. Download this guide to learn more about the specific 2009 IECC requirements for the District of Columbia.

    * U-Factor
    * R-Value
    * Climate zones
    * Insulating requirements