RESNET HERS Rater vs BPI Building Analyst: What Is the Difference?
Both RESNET HERS Raters and BPI Building Analysts are certified energy professionals, but they serve different purposes. A RESNET HERS Rater is trained to rate the energy performance of new and existing homes using the HERS Index. A BPI Building Analyst is trained to diagnose energy problems and recommend improvements in existing homes. They have different scopes, certifications, and use cases.
Which Certification Does Massachusetts Require for New Construction?
For new construction in Massachusetts, the MA Stretch Code 2021 specifically requires a RESNET-certified HERS Rater to verify energy code compliance. A BPI Building Analyst cannot fulfill this requirement. Only a RESNET-certified HERS Rater can issue a HERS certificate and conduct the required blower door and duct leakage tests for Stretch Code compliance.
When Would You Need a BPI Building Analyst in Massachusetts?
A BPI Building Analyst is typically used for energy audits on existing homes — diagnosing insulation deficiencies, air leakage problems, HVAC issues, and recommending improvements. BPI certification is also relevant for Mass Save home energy assessments on existing homes. If you are doing energy efficiency improvements to an existing home (not new construction), a BPI-certified auditor may be what you need.
Can One Person Hold Both HERS Rater and BPI Certifications?
Yes. Many energy professionals in Massachusetts hold both RESNET HERS Rater and BPI Building Analyst certifications. HERS Rating Company’s raters hold multiple certifications, allowing us to serve both new construction and existing home energy needs. When in doubt about which service you need, contact us and we will point you in the right direction.
Get a Certified HERS Rater in Massachusetts
HERS Rating Company is a RESNET-certified HERS Rater serving all of Massachusetts. We are the right choice for new construction energy code compliance under the MA Stretch Code 2021. Contact us for a free consultation.
Related Services in Massachusetts
HERS Rating Company is a RESNET-certified, Mass Save-approved HERS Rater serving all 351 Massachusetts cities and towns.
Serving Boston, Worcester, Springfield, Cambridge, Newton, Brookline, and all 351 MA cities. Get a free quote →
RESNET HERS Rater vs BPI Auditor: Key Differences
A RESNET-certified HERS Rater performs energy ratings on new construction homes for code compliance. A BPI auditor focuses on existing homes and retrofit work. For new construction in Massachusetts, you need a RESNET HERS Rater. HERS Rating Company employs RESNET-certified raters who handle all new construction energy compliance across all 351 Massachusetts cities.
When Do You Need a RESNET HERS Rater?
You need a RESNET HERS Rater for: new home construction energy code compliance, MA Stretch Code 2021 certification, Mass Save new construction rebates, ENERGY STAR home certification, and green building certifications like LEED or Passive House. Call 617-584-1809 for a free consultation.