EP142 Home Efficiency By The Numbers: Highlights From The 2025 RESNET® Report With Ryan Meres (June 2025) RESTalk podcast

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EP142 Home Efficiency by the Numbers: Highlights from the 2025 RESNET® Report with Ryan Meres (June 2025)

14h ago 25:05

MP3•Episode home

“RESNET members are now touching about a third of all new single-family homes. That’s a big number — and it’s only growing.”

-Ryan Meres

In this episode of RESTalk, host Bill Spohn welcomes back Ryan Meres, Program Director at RESNET®, to explore the key insights from the 2025 HERS Rated Homes Data Trends Report. This sixth annual edition reveals both expected and surprising patterns in how homebuilders, energy raters, and policymakers are driving efficiency across the U.S. housing market. With over 436,000 homes HERS rated in the past year, the report reflects RESNET®’s growing impact — now touching a third of all new single-family homes and a rising share of multifamily projects.

Ryan breaks down regional standouts: Massachusetts leads with 88% of new homes HERS rated due to its Green Communities program, while Texas tops the volume charts with 113,000 ratings. Notably, California showed the most improvement in HERS scores since 2013, driven in part by its solar mandate. Meanwhile, the report tracks construction practices, including the dominance of slab-on-grade foundations and the increasing prevalence of ductwork in conditioned spaces.

Other notable topics include growing adoption of heat pumps (especially in the Southeast), a dramatic increase in homes achieving

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