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PHIUS Certified Passive House Builder Training

Builder's Training Class, Urbana, Illinois

Connecticut Project Teams Take Note--Training Reimbursement!

Eversource, a sponsor of Energize Connecticut, offers 50% cost reimbursement for PHIUS accreditation training for up to two professionals per company per training. Learn more and apply here.

50 Percent Reimbursement in Massachusetts!

You may be eligible for partial reimbursement for training fees from the Mass Save project. Click the logo for more information, and you can apply using this form.

Continuing Education

Builders Training Earns

32.5 CPHC CEU 32.5 AIA HSW
12.75 BPI CEU  

Become a PHIUS Certified Passive House Builder (CPHB)!

Superinsulation, airtight envelopes, high-performance window installation, site management, component sourcing—passive house construction presents special challenges to builders. The PHIUS CPHB training program prepares construction professionals to meet the passive house challenge.

Instructors bring a wealth of knowledge having built dozens of successful passive house projects. Topics range from design theory and climate-specific detailing to materials, techniques, project management, and quality assurance.

The course offers real-world ins ights into on-site implementation as well as counseling and advice on both the practical and business concerns specific to passive house. The material covers not only craftsmanship, but also risks and liability to the passive house contractor and guidance in both problem-solving and (more importantly) problem avoidance.

Full Program:

  • Phase I: An 8-hour online prep course completed prior to the Phase II training
  • Phase II: Live instruction for 8 days, online delivery, 3 hours per day over two weeks
  • Approximately 32 hours of instruction
  • Exam Due Date = first Monday after 3 weeks

Course Highlights

  • Learn general passive house principles
  • Classroom and field focus on envelope issues
  • HVAC considerations and testing
  • Cost optimization/bidding
  • QA/QC process


To become a PHIUS Certified Passive House Builder, trainees must:

  • Complete and return the qualifying exam within three weeks of completing class (exam requires separate registration, see below)
  • Earn a passing grade of 75%
  • Supply evidence of construction industry experience and proof of licensure & insurance for jurisdictions where they are required

CPHBs are listed on the PHIUS online database of Certified Builders, and are licensed to use the PHIUS Certified Builder logo and accompanying recommended language.

Continuing Education:

Completion of this course qualifies trainees for the following credits:

  • AIA: 32.5 hours of HSW Learning Units
  • BPI: 12.75 CEU
  • CPHC: 32.5 CEU

Training Registration

The PHIUS Certified Passive House Builder training program is administered by RDH Building Science Inc., one of the leading building science consulting firms within the United States and Canada. This training has been developed by PHIUS in conjunction with RDH's training and publication professionals dedicated to sharing RDH's building science and enclosure design knowledge with the industry.

Please use the forms below to register for our upcoming trainings (for questions about registration, please contact

Location Class Dates Class Times Exam Start Date Exam Due Date Register
Jan 2022 Jan 3 - 13 12pm - 3pm ET Jan 13 Feb 13 SOLD OUT
Feb 2022 Feb 7 - 18 2pm - 5pm ET Feb 18 Mar 18 WAITLIST ONLY
Mar 2022 Mar 21 - 31 12pm - 3pm ET Mar 31 May 1 REGISTER
Apr 2022 Apr 18 - 28 2pm - 5pm ET Apr 28 May 28 REGISTER


CPHB Phase I/ II Cancellation


  • 100% Refund Available: 30+ business days prior to the start of the course*
  • 75% Refund Available: 20 business days prior to the start of the course*
  • No Refund Available: 10 business days prior to the start of the course*

*The start of the course is defined as the first day of live instruction

CPHB Phase I/ II Rescheduling

  • $0 rescheduling fee: changing Phase II enrollment dates 30+ business days prior to the start of the course
  • $25 reschedulingf fee:  3 - 30 days prior to the start of Phase II
  • No refunds or rescheduling available for requests less than 3 business days prior to the start of Phase II.

Maintaining the PHIUS Certified Builder Credential 

nominal maintenance fee will be billed on a yearly basis starting on January 15, 2018. One listing fee will be due per professional regardless of the number of certified credentials held by that professional. (For example a CPHC® who is also a Certified Builder, will be subject to a single maintenance fee.)

The fee will help maintain and improve the listing database and assist in the development of the continuing education programs for all professionals.

PHIUS Certified Builders can maintain/extend their certification status through either one of the following methods:

1. Build a PHIUS+ Certified Passive Building Project

Successfully building a project within three years after the professional’s certification date will maintain/extend the Builder’s professional credential status by an additional three years.

2. Take and Pass the Current Builder Exam

Successfully completing the Builder exam will maintain/extend the Builder’s professional credential status by three years. Trainees have until 12 calendar months from the conclusion of their specific class to start an exam cycle.

If Builder Certification Expires:

  • A Builder who fails to meet one of the above requirements by their expiration date will be removed from the Builder database and their credential will no longer be considered valid.
  • A Builder whose certification status has expired can reactivate their certification by taking and passing the current Builder exam


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