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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 ...
Residential State Climate Zone Maps (14.2 MB)
This shows the climate zones of each state as applicable.
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.
Commercial State Climate Zone Maps (14.6 MB)This shows the climate zones of each state as applicable.
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.
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...
Q: What is a prescriptive packages approach? A prescriptive packages approach lists the minimum R-value or maximum U-factor requirements for each building component such as windows, walls, and roofs.
Glass has been used for thousands of years to allow daylight into our buildings, while providing weather protection.
Choosing the appropriate approach depends on the complexity and/or uniqueness of the building, and the amount of time and money available for demonstrating compliance.
A prescriptive packages approach lists the minimum R-value or maximum U-factor requirements for each buildi