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Energy Codes are Getting Complicated! It’s time for a simpler approach

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In the 2006 International Energy Conservation Code (IECC), the primary residential provisions of the code (Chapter 4) consisted of four pages. That same chapter in the 2021 IECC is 21 pages long! Mandatory, prescriptive, performance, energy rating index, additional efficiency packages and UA trade-offs all combine to make IECC compliance complicated. Prescriptive compliance is increasingly more expensive and complicated to use, and the performance compliance option doesn’t allow consideration for high efficiency equipment. The energy rating index path provides a