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HERS-Rated Homes Increased 24 Percent Year Over Year

RESNET released its "2021 Trends in HERS Rated Homes” report.    

The report revealed HERS Raters rated 299,755 homes in 2020, a 24 percent increase over the number of ratings in 2019 and the ninth straight year-over-year increase in HERS ratings. The efficiency of HERS rated homes also improved. The average HERS Index in 2020 was a 58, representing a 42 percent improvement in efficiency over a home built in 2006. Since 2013, the average HERS index score has decreased by five points. Seventy-seven percent of all homes rated last year were one- and two-family dwellings and 23 percent were multifamily units

The report first looks at broad national-level trends in the number of HERS ratings and average index scores. Next, the report covers state-level trends, including the total number of HERS ratings in each state and the percent of new homes that received a HERS Rating. After the state-level data, the report looks into trends of HERS ratings in cities, including the top 25 cities for single-family and multifamily ratings.

The remainder of the report focuses on individual trends across HERS ratings, including a breakdown of the basic characteristics of rated homes and individual building components. A variety of building envelope components are covered as well as air leakage rates, equipment efficiencies and the use of solar on HERS rated homes.

Ryan Meres, RESNET Program Director, developed the report on behalf of RESNET’s Suppliers Advisory Board.

Download the report