IECC climate zone map
![IECC climate zone map IECC climate zone map](https://webarchive.library.unt.edu/web/20170121032241im_/https://basc.pnnl.gov/sites/default/files/styles/resource_large/public/images/IECCmap_Revised.jpg?itok=ZOwHAaH6)
Display Image: IECCmap_Revised.jpg
Organization(s):
ICC
Code establishing a baseline for energy efficiency by setting performance standards for the building envelope (defined as the boundary that separates heated/cooled air from unconditioned, outside air), mechanical systems, lighting systems and service water heating systems in homes and commercial businesses.