How Is a Home's HERS Index Calculated? - GreenBuildingAdvisor
By A Mystery Man Writer
Last updated 14 Jul 2024
![How Is a Home's HERS Index Calculated? - GreenBuildingAdvisor](https://images.greenbuildingadvisor.com/app/uploads/2018/07/24222059/HERS%20Index-main-700x975.jpg)
Anyone involved with the Energy Star Homes program has probably heard of the HERS Index, a method of scoring the energy efficiency of a new or existing home. A Web page maintained by the state of Arkansas, for example, explains that the “EPA requires a house qualifying for Energy Star to be built with best practices, tight ducts, and at least 15% more energy efficient than code as shown by a HERS Index score of 85 or less as determined by a HERS Rater.”
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