IECC: Easier to Use and Enforce
November 01, 2004
The International Codes Council (ICC) recently approved sweeping changes to the residential chapters of the International Energy Conservation Code (IECC), the national model code that is the basis for many state energy codes.The revised residential energy code replaces chapters 3–6 of the previous code. It shrinks the IECC code book by more than half, resulting in a code that will be easier to read, understand, use, and enforce. The changes will become the 2004 Supplement to the 2003 IECC and the corresponding energy chapter of the International Residential Code. Here are some highlights of the revisions: • Redefined climate zones (see above). The new code defines climate zones geographically, reducing their number to 8. (The previous code had 19 climate zones, defined by degree-day ranges.) Compliance and enforcement will be simpler because the new climate zones honor political boundaries, such as state and county lines, and attempt to keep metropolitan areas together.The redefined climate zones also do a better job of integrating cooling considerations into the code—a key improvement, given that air conditioning is a rapidly growing residential load. &...
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