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Bill Kosik, PE, CEM, LEED AP

Bill Kosik, PE, CEM, LEED AP, is an Assistant Vice President, Senior Technical Manager, Mechanical Engineering at WSP. He is a member of the Consulting-Specifying Engineer editorial advisory board.

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Figure 2: This shows the ASHRAE Standard 90.1 savings, year over year. Courtesy: Pacific Northwest National Laboratories, DataHub
Codes and Standards March 4, 2025

Why and how to adopt the IECC for energy-efficient designs

By understanding the International Energy Conservation Code (IECC), engineers can interpret codes and standards appropriately for design purposes.

By Bill Kosik, PE, CEM, LEED AP
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