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The Building America, Challenge Home, and Home Energy Score websites have moved. Please update your bookmarks. You can visit the new websites by following the links below:

Building America

Building America Home Page: A national center for world-class research, Building America develops market-ready solutions for new and existing U.S. homes.
World-Class Research: Information about Building America's research approach, teams, and national laboratories.
Innovations: An overview of Building America top technical innovations developed for the U.S. building industry.
Research Tools: Technical tools to support researchers and building industry professionals in ensuring consistent research results for new and existing homes.
Guides and Case Studies: Handbooks and case studies that demonstrate real world solutions for improving the energy performance of new and existing homes in five major climate regions.
Market Partnerships: Partnership opportunities, educational curricula, meetings, and webinars that help industry professionals bring research results to the market.