This report provides preliminary estimates of the incremental costs and savings associated with the residential provisions of the 2018 International Energy Conservation Code (IECC). The analysis is provided to the U.S. Department of Energy (DOE) to help quantify the costs and savings impacts of the latest published edition of the IECC, the 2018 IECC. The incremental cost of building to the 2018 IECC, relative to the 2015 IECC, ranges from $398 to $1,071 depending on the climate zone, and payback periods range from 0 (immediate) to 1.8 years, depending on the climate zone.
Revised: October 4, 2019 |
Published: April 26, 2019