Designing for Efficiency: Envelope Considerations in Energy Codes

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Abstract:

The ever-evolving energy codes require designers, owners, and operators to stay on top of each new iteration and understand the impact early design decisions have on all aspects of a project. This presentation provides an overview of the major envelope design drivers within the 2024 IECC and ASHRAE 90.1-2022 energy codes and how they evolved from previous iterations. It will explore major code differences, with a focus on Illinois and Chicago-specific requirements, equipping designers with the knowledge to ensure compliance and optimize building performance.

Learning Objectives:

  1. Evaluate energy code compliance path options and the key factors influencing their selection.
  2. Differentiate between 2024 IECC and ASHRAE 90.1-2022 requirements for building envelopes.
  3. Analyze new and updated continuous air barrier requirements.
  4. Understand the magnitude of the new envelope backstop requirement in ASHRAE 90.1-2022.

Sponsored by: Klein and Hoffman, Inc.

With more than 70 years of experience, Klein & Hoffman provides structural engineering and restoration architecture services focused on strengthening, modernizing, and extending the life of existing buildings. Our team partners closely with owners, architects, developers, and facilities managers to investigate, assess, and rehabilitate structures of varying size and complexity.

Known for our hands-on, client-focused approach, we deliver practical, innovative solutions that restore structural integrity, address safety concerns, and enhance building performance and appearance. Guided by our core values of excellence, integrity, innovation, service, and communication, we build lasting relationships based on trust and results.

Date

Apr 07 2026

Time

2:00 pm
Category

Speaker

  • Allison McSherry Allison McSherry RA, BECxP, CxA+BE, LEED AP BD+C, CEM, NCARB, Associate V, Klein and Hoffman, Inc.
    Allison McSherry
    Allison McSherry
    RA, BECxP, CxA+BE, LEED AP BD+C, CEM, NCARB, Associate V, Klein and Hoffman, Inc.

    Allison McSherry specializes in building enclosure commissioning, consulting, and investigation along with energy modeling of building enclosures. She has shared her energy modeling and energy code expertise with architects, engineers, code officials, and contractors through a variety of certified continuing education courses and webinars, including developing and delivering three courses with the Illinois Building Industry Training and Education (BITE) program serving more than 600 industry professionals. In addition, she has performed LEED energy modeling, LEED facilitation, retrocommissioning investigations, THERM, and EPAct 179D energy modeling and analysis.