HERS® Ratings for Manufactured Homes

What is HERS Rating?

The Home Energy Rating System (HERS®) provides a standardized measure of a home’s energy performance. RESNET’s manufactured housing program makes HERS Ratings available for new manufactured homes, allowing manufacturers, buyers, and lenders to compare their energy performance with site-built housing.

Program Requirements

The program combines plant certification, energy modeling, production inspections, and sampled field verification. Key requirements include:

  • Plant certification: A certified HERS Rater reviews the facility’s policies, design specifications, quality-control procedures, and installation manuals.

  • Energy modeling: A HERS Rater or HERS Modeler models each home’s design and specifications.

  • Production verification: Inspections and duct-leakage testing of all duct runs take place during production.

  • Labeling and registration: Each rated home receives a HERS Label, and results are submitted to the RESNET Registry. A home’s serial number may be used instead of an address.

  • Field verification: Sampled field inspections cover 2% of each facility’s HERS-rated homes, tracked quarterly.

For more information, refer to RESNET web page.

Manufacturers and Certifiers

HERS Ratings help manufacturers communicate energy performance to buyers and may support access to local utility incentives.

Program Resources

  • In-Plant Review Inspection Worksheet

  • Field Inspection Checklist

  • Facility Certification and Semi-Annual Review Checklist

  • Field Site Data Collection Manual

  • In-Plant Site Data Collection Manual

  • Presentation: HERS for MH Program Rating Process

  • Presentation: HERS for MH Program Roles and Responsibilities

  • RESNET Code of Ethics

Interested in participating? Contact SBRA at info@research-alliance.org