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2024 IECC – What Happened?

The International Energy Conservation Code (IECC) or “model code” establishes the minimum requirements for building energy efficiency. The code is updated every three years, and for 2024, a new consensus-driven development process brought together diverse stakeholders to determine those requirements.

However, the International Code Council’s Board of Directors recently voted to go against consensus and remove mandatory provisions relating to building decarbonization from the 2024 draft.

In this episode, host Robb Aldrich interviews Gayathri Vijayakumar, Principal Mechanical Engineer at Steven Winter Associates and a voting member of the 2024 IECC Residential Consensus Committee, to find out… what happened?

Episode Guest

Headshot of Gayathri Vijayakumar

Gayathri Vijayakumar

Gayathri is a Principal Mechanical Engineer at Steven Winter Associates. For over 18 years, she has specialized in evaluating residential and multifamily buildings with an emphasis on high-performance construction and renewable energy systems.

Early in her career, Gayathri provided technical assistance to sustainability projects by performing energy modeling and conducting cost-benefit analyses of energy efficient measures in both new and existing residential construction. She leveraged that experience for her current role: providing consulting to federal, state, and local agencies, codes, and programs to develop emerging standards and procedures that involve energy efficiency and indoor air quality requirements. This includes the EPA’s ENERGY STAR® Multifamily New Construction Programs, where she has provided technical support since 2008, and more recently, their Indoor airPLUS program.

Gayathri is also an active contributor to various technical committees that share a goal of improving codes and standards. She currently is a voting member of the 2024 IECC Residential Consensus Committee and Chair of RESNET’s Standards Development Committee, SDC300.

Episode Information & Resources

Previous episodes on energy code:

IECC resources:

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About Buildings and Beyond

Buildings and Beyond is the podcast that explores how we can create a more sustainable built environment by focusing on efficiency, accessibility, and health.

Buildings and Beyond is a production of Steven Winter Associates. We provide energy, green building, and accessibility consulting services to improve the built environment. For more information, visit swinter.com.

Hosts: Robb Aldrich | Kelly Westby

Production Team: Heather BreslinDylan Martello | Tricia Carr | Ian Slakas | Lucy Koch

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