State Energy Code Analysis Fact Sheet - Colorado
Document Number: DOE/EE-2395 | Document Type: Analysis | Publication Date:

Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.

Cost-Effectiveness of the 2021 IECC for Residential Buildings in Colorado — 2015 IECC Baseline
Document Number: PNNL-32382 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the 2015 IECC.