Technology Requirements

Trainees receive a free 8-week license to WUFI Passive software. WUFI Passive, which combines passive energy modeling with WUFI’s hygrothermal modeling, is also available for purchase from Fraunhofer IBP.

WUFI Passive requires Windows OS. Mac users need to purchase and install VMWare Fusion, Bootcamp or Parallels, along with a Windows operating system. VMWare Fusion is recommended.

In addition, students must install LBNL THERM. Always download the most recent NFRC-approved version. 

The most recent STABLE version, is 6.3.46. It is available for free download here:

There are known technical issues with THERM installation on Windows 7 and Windows Vista - special installation information for these operating systems can be found here:

PHIUS CPHC® (Certified Passive House Consultant) Training Program

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Earn the leading passive house credential in North America--become a PHIUS CPHC

PHIUS-trained Certified Passive House Consultants (CPHCs) are leading adoption of passive house by designing and building quality-assured passive projects -- single family, multifamily and commercial. They're building them across North America's varied climate zones. And they're building them right -- earning PHIUS+ Certification that follows RESNET QA/QC protocols, earns U.S. DOE Challenge Home status and earns a HERS score.

Here's your chance to join this group of passive house industry leaders. To be successful, passive building designers need to understand passive principles—and much, much more.


  1. To implement the principles successfully, passive house consultants must, at a minimum, be competent with energy modeling and balancing software. In most North American climate zones, they also need to master additional tools such as WUFI. PHIUS CPHC training includes instruction in WUFI Passive, the all in one tool including passive house verification, hygrothermal assessment, and dynamic modeling.

  2. Passive house consultants need to understand industry standard quality assurance and quality control protocols to ensure their projects are built as designed.


PHIUS Certified Passive House Consultant Training is the only comprehensive program that equips graduates who pass the certification exam to get started on their passive building projects.

Virtual + In-Class format makes it more convenient and affordable to become a CPHC!

Launched in 2008, PHIUS CPHC training is tailored to North

America’s unique climate variations, market conditions and building components. PHIUS, the leading North American passive house training provider, has certified more than 500 CPHCs. To keep the momentum going, PHIUS has reconfigured its CPHC program to make it more convenient--and affordable--to become a CPHC:

  1. Phase I is now offered as eight three-hour virtual sessions.

  1. Virtual sessions are live, led by seasoned PHIUS-trained expert instructors with the latest continually updated curriculum, and with opportunity for live virtual expert interaction and support.

  2. Students who miss the live sessions can watch the recorded sessions. (Since the sessions are progressive, students need to watch any missed session before the next scheduled live session.) Recorded sessions are available through the end of the in-class (Phase II) program.

  1. Students travel only once for five-day Phase II in-person instruction at their choice of locations around the United States. Phase II focuses specifically on modeling software and exercises that require personal interaction. The optional CPHC exam is offered on site on the last afternoon of training.  

The new configuration reduces travel and lodging costs—and reduces fees! The new, lower full costs for the CPHC program:

  1. $1,800 for general public (previously $2100)

  2. $1,650 for PHAUS Pro members (previously $1,950)
    Visit PHAUS for membership information

These prices include both the virtual and in-class sessions, and a free, 8-week license to use WUFI Passive energy modeling software.  

The new format cuts cost and travel, but it doesn’t cut corners:

  1. Learn WUFI Passive, the next-generation passive and hygrothermal modeling tool developed in partnership with Fraunhofer IBP and Owens Corning. It’s a remarkable all-in–one performance and risk management tool for building professionals. Students receive a free 8-week license to use WUFI Passive!

  2. Gain proficiency in energy modeling skills by completing an entire project including energy balancing (static and dynamic), and  hygrothermal assessments of all building components and comfort assessments according to ASHRAE 55.

  3. Learn to implement high performance building science principles and passive house techniques in residential, commercial, and retrofit scenarios across all North American climate scenarios.

  4. Learn from North America’s most experienced and accomplished passive house practitioners. PHIUS instructors have designed and certified projects across the United States and Canada.

  5. Study built examples—including mechanical systems—for each North American climate zone.

  6. Learn about suitable materials and components available on the local U.S. and Canadian markets and details for passive house applications according to climate.

  7. Learn the best air tightness strategies as well as thermal bridge free detailing and how to evaluate your design in THERM.

  8. Learn how to assure quality and performance for your client from the design process through construction.

The program’s main components:

  1. Principles of passive building design: heat transfer, air-tightness, thermal bridge free detailing, super-insulation, highly efficient ventilation, moisture control

  2. Instruction in the most advanced passive energy and hygrothermal modeling tools

  3. Minimized mechanical systems design

  4. Passive building construction examples

  5. Passive building materials selection

  6. Introduction to PHIUS+ Certification and Quality Assurance

CPHC Certification

PHIUS established the Certified Passive House Consultant (CPHC) credential to distinguish accomplished passive house professionals in the marketplace. CPHCs are listed on the PHIUS and PHAUS online database of CPHCs, and get access via PHIUS to the latest technical developments.

To become certified, students must:

  1. Take and pass (70 percent or better) a computer-based exam.

  2. Complete and pass a take-home design exercise within three weeks of taking the computer-based exam.

  3. Students can opt to take the exam on the afternoon of the last day of training. The exam will also offered independently of training sessions (2014 dates TBD).

Register for the Exam

Students in the CPHC program who opt to take the exam must register for it separately.

Questions? email:

“Thanks for a great class. I have not been so excited about architecture since grad school!”
-- Matt Lutz, Associate Professor of Architecture, Norwich University

Earn 31.5 continuing education credits from the Building Performance Institute

PHIUS CPHC Training is approved for GBCI CE Hours (32 hours)

Next virtual sessions begin October 7, 2014

In-class locations in Philadelphia, Chicago, and San Francisco

See full schedule of Virtual and In-Class Programs

PHIUS and Yestermorrow offering intensive, all in-class program beginning

January 11, 2015

Course runs January 11-18

Exam Afternoon of January 18

Visit the Yestermorrow site for more information

Apply and Register

This course requires a base knowledge in building science commensurate with architectural training, hands-on building experience, or similar background.

  1. 1.Download and complete this application form. Application instructions and admission requirements can be found here.

  2. 2.Email the completed application to:

  3. 3.Once accepted, use one of the following links to register and pay.*

  1. General Public Registration ($1,800)

  1. PHAUS Member Registration ($1,650)

* Yestermorrow program participants must register at the Yestermorrow site.

If you are not a member of the Passive House Alliance US but are interested in becoming one, visit