What is the Home Energy Rating System

Home Energy Rating System

The Home Energy Rating System (HERS) Index is the industry standard by which a home’s energy efficiency is measured. It’s also the nationally recognized system for inspecting and calculating a home’s energy performance.

The U.S. Department of Energy has determined that a typical resale home scores 130 on the HERS Index while a standard new home is awarded a rating of 100.

  • A home with a HERS Index Score of 70 is 30% more energy efficient than a standard new home
  • A home with a HERS Index Score of 130 is 30% less energy efficient than a standard new home

However, in many municipalities a HERS Index Score of less than 50 is now required to meet 2017 regulations.

What does this mean to the homeowner? Foam insulation is the key. Have more questions, ask a builder...