Unvented, Conditioned Crawlspaces - Building America Top Innovation
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Building America research on unvented crawlspaces has demonstrated energy savings of 15% to 18% for heating and cooling while reducing humidity over 20%. These results have substantially influenced changes in the 2009 and 2012 versions of the International Residential Code (R408.3) allowing unvented, conditioned crawlspaces. Thousands of homes have now been constructed with this important innovation. Read about this Top Innovation.
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