Skip to Content
U.S. Department of Energy Energy Efficiency and Renewable Energy

Building America Guides and Case Studies

The Map of the United States shows climate zones in different colors. The Marine zone contains the Pacific coast from the Canadian border to mid-California. The Hot-dry/Mixed-Dry zone contains the rest of California and follows the US border to mid-Texas. The Hot-Humid zone covers eastern Texas through Florida and includes Puerto Rico and Hawaii. The Mixed-Humid zone covers the mid-central to mid-eastern regions of the country. The Cold/Very Cold zone contains all of the Northern United States. Hot-Dry / Mixed-Dry Marine Hot-Humid Mixed-Humid Cold / Very Cold

Select a climate zone from the map above, and view a listing of climate regions by county in the Guide to Determining Climate Regions: Volume 7.1 to view climates by county.

Building America's Best Practices handbooks and case studies demonstrate real world solutions for improving the energy performance and quality of new and existing homes in five major climate regions. By organizing guides by climate region, the U.S. Department of Energy (DOE) helps builders find information specific to the region where they are operating.

You can also use the map to access the Best Practices Series handbooks and case studies by climate zone.

Solutions that Work Across Climates

DOE has developed several building solutions that work across climate regions.