Home >Who We Are>Code Officials

Code Officials

The RESNET HERS Index is the industry standard by which a home’s energy efficiency is measured. The HERS or Home Energy Rating System was developed by RESNET and is the nationally recognized system for inspecting and calculating a home’s energy performance. Certified RESNET Home Energy Raters conduct inspections to verify a home’s energy performance and determine what improvements can be made to increase it. For more information click on RESNET HERS Index.

Across the nation state and local governments are adding a HERS Index Score target as a performance compliance option to their building energy code.

The reasons why a HERS Index Score is being tied into energy codes include:

  • The inspection and testing protocols are established in RESNET’s national home energy rating standards.
  • RESNET is a national not-for-profit membership standard setting organization.
  • It is accredited by the American National Energy Standards Institute (ANSI) as a Standard Development Organization.
  • The professionals that undertake the inspection and performance testing are certified following RESNET’s standards stringent training and testing procedures.
  • All certified RESNET home energy raters are subject to RESNET’s robust quality assurance oversight procedures.
  • The RESNET national home energy rating standards are recognized by the federal government (U.S. Department of Energy, Environmental Protection Agency, Internal Revenue Service) and the mortgage industry.
  • The HERS Index is a trusted measurement of the energy performance of a home. Over one million homes have been issued a HERS Index Score in the US.

What is the HERS Index?

A scoring system established by RESNET in which a home built to the specifications of the HERS Reference Home (based on the 2006 International Energy Conservation Code) scores a HERS Index of 100, while a net zero energy home scores a HERS Index of 0.

Learn More