Passive House Rater

As a Passive House Rater (PHIUS+ Rater), and PHIUS+ Large Building Verifier, Sustainable Comfort can help you achieve your next Passive House building project.

It’s important to have a rater on board who has in-depth knowledge of Passive House design, and understands how ENERGY STAR Homes, DOE ZERO Energy Ready Home, and EPA Indoor Air Plus programs fit within the requirements.

Program Requirements

Passive House projects need to meet the following criteria to be certified:

  1. Low heating and cooling loads, meeting a custom standard based on your climate and location
  2. Very low energy use per person
  3. Extremely air tight envelope, tested using a blower door.
    High efficient mechanical systems including constant fresh air ventilation.

Learn more about the Passive House program.

Design Phase

Prior to construction we work with the architect, owner, and builder to make sure the most cost effective solutions are implemented to meet the Passive House requirements. In addition to Passive House design requirements, the follow programs must be met to achieve Passive House Certification.

ENERGY Star Homes

We will complete the energy modeling and inspections required for the ENERGY STAR program.

EPA Indoor Air Plus

The EPA Indoor Air Plus program provides high indoor air quality.

DOE Net Zero Energy Ready Homes

Set up your building as renewable ready for easy retrofit to a DOE Net Zero Energy Ready Home.

Construction Phase

Our Raters conduct inspections throughout the construction process to verify designed items are installed properly to achieve the performance intended.

Open Wall Inspections

Our Raters ensure proper insulation and air sealing in every unit.

Blower Door Testing

We conduct preliminary and final blower door testing to hit the very difficult air leakage standard.

Final Inspections

Inspect and test all items installed to meet the Passive House program.

Post Construction

We collect all information and inspection reports and process your Energy Star Certification, Indoor Air Plus Certification, and DOE Zero Energy Ready Homes Certification. We will then submit all the testing and inspection reports required by the Passive House program to ensure your certification.

Final Certification

Upon completion, we will process all your final certifications.