20% Stretch Code Provisions

Guideline / February 14, 2019 / Codes And Policy / Energy Codes

The 20% Stretch Code Provisions describe a set of code strategies that represent a 20% performance improvement for commercial buildings over the ASHRAE 90.1-2013 code baseline (and approximately similar savings over the IECC 2015 baseline) that can be adopted by cities as policy or incentive programs to support progress toward energy or climate goals.

The 20% Stretch Code Provisions measures are the first outcome of a larger project that is focused directly on the technical development of stretch codes and standards, and on support for jurisdictions in adopting and implementing these policies. As jurisdictions move forward with the adoption of codes and policies that support building stock performance improvement, a set of increasingly stringent performance metrics are anticipated, ranging from a 20% improvement over baseline code performance to a policy that delivers zero energy performance in buildings. In support of these efforts NBI has also developed a 40% Stretch Energy Standard for local governments.

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