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The 2004 IECC Supplement was the first model energy code to adopt a new set of climate zones. The older IECC zones had been based only on heating degree days, and did not account for cooling energy.
Residential State Climate Zone Maps (14.2 MB)
This shows the climate zones of each state as applicable.
Commercial State Climate Zone Maps (14.6 MB)This shows the climate zones of each state as applicable.
Building America Best Practice Series, Volume 5: Marine Climate Zone (5.5 MB)Building America's system design recommendations and process improvements can help all builders interested in re-engineering their home designs to achieve high performance. This best practices handboo...
REScheck versions 4.0.0 and above provides support for IECC 2006. This article addresses questions related to the climate zone system; mechanical equipment for a tradeoff; and compliance with multiple...
Office buildings should be divided into thermal zones based on building size, part-load performance requirements, space layout and function, number of tenants, and the needs of the user.
The 2006 IECC is very different from prior versions of the IECC. Compliance with REScheck is more difficult for many homes, but understanding the prescriptive requirements can help you determine what ...
The 2006 International Energy Conservation Code (IECC) requires all cooling systems in commercial buildings to have economizers, depending on climate zone and cooling system capacity.
Requirements for the building envelope fall under Chapter 5, Section 502. Compliance to ASHRAE 90.1-2004, Section 5, is also acceptable by reference in the energy code.
The U-factor and solar heat gain coefficient (SHGC) of fenestration products shall be determined in accordance with National Fenestration Rating Council Standards NFRC 100 and NFRC 200 respectively by...