Thermal Bridging

Thermal Bridging

This video series will provide participants with an introduction to thermal-bridge simulation and analysis using the free LBNL THERM software.

Course Overview

This course will provide participants with an introduction to thermal-bridge simulation and analysis using the free LBNL THERM software.

Walk through an entire sequence of installation, library setup, and modeling of several example conditions in the LBNL THERM software. It also features screen-casts of the THERM software and a ‘model-along’ style where the instructor takes you through the process and concepts as they model sample details.

A variety of example cases will be used. Start with a very simple wall and progress into more complex details. For the most part, the examples will focus on wood-frame construction and remain relatively simple.

Why attend this course?

  • Develop your skills in using THERM modelling software
  • Model Assemblies, Junctions, Windows, and Ground thermal bridges

Course Takeaways

Learning Objectives

By the end of this course, participants will be able to:


  • Introduction to Thermal Bridging
  • Downloading and Installing THERM
  • Drawing in Therm
  • Running a Simulation

  • Intro to U-Values and Heat Loss
  • Intro to Assemblies
  • Floor – Geometry Modeling, Assigning Materials, Assigning Boundary Conditions, and Running the Simulation
  • Wall – Geometry Modeling, Assigning Materials, Dealing with Air Layers, and Assigning Boundary Conditions
  • Ceiling – Geometry Modeling, Assigning Materials, Assigning BC, and Simulating

  • Intro to 1-Element Psi-Values
  • Column – Geometry Modeling, Dealing with Air Spaces, Calculating Psi-Values
  • Corner – Intro to 2-Element Psi-Values, and Modelings, Materials, BCs
  • Eave – Geometry Modeling, Building Equivalent Conductivity Materials, and Calculating Psi-Value

  • Intro to Window Psi-Values
  • Sill – Geometry Modeling, and Calculating Psi-Value
  • Jamb – Geometry Modeling, and Calculating Psi-Value
  • Head – Geometry Modeling, and Calculating Psi-Value

  • Intro to Ground Heat Loss
  • Simulating Ground Heat Loss
  • Footing – Calculate B’, Geometry Modeling, Materials, BC, Simulating, and Calculating Psi-Value

  • Learn about the competition, next steps and more.

Who Should Attend

This course was developed for Certified Passive House Designers and Consultants or professionals with similar understanding to core Passive House knowledge and skills.


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Which course option is right for you?

This course is currently only available on-demand. Have a group? Contact us for group options.


Anywhere. Anytime.
Starting at $590.75
  • Self-Paced Modules
  • Course Forums
  • No commute
  • Any-time
  • Instant Access
  • 6-month access

Course Schedule

On-Demand Sessions

Things to Know

Course Completion Requirements

For PHN On-Demand courses all lessons, topics, and quizzes must be marked complete; any required webinars must be attended; AND the post-training survey must be completed.

For In-Person & Live-Online single day courses, 100% attendance is required to receive a course completion certificate.

For In-Person & Live-Online multi-day courses,no more than 2 hours can be missed to receive a course completion certificate.

Continuing Education Credits

Courses with continuing education credits (AIA or PHI) are noted in the course details section.

AIA credits for Live-Online and In-Person Courses will be reported to AIA by PHN if a participant provides their AIA number during registration. All other participants can use the certificate of completion to report continuing education credits either to AIA, or other agencies that recognize the AIA CE credits.

PHI credits are self-reporting. Find out a courses PHI course number. Report PHI credits.

Technical Requirements

Live-Online and On-Demand courses require a personal computer or laptop with a good internet connection speeds and audio listening capabilities. A web-camera is optional but preferred for Live-Online sessions. Preferred web browsers are Firefox, Chrome, or Chromium-based browsers.

In-Person courses do not require laptops or other devices, unless specifically mentioned. Although a laptop, or other note-taking equipment (pen and paper) are encouraged.

Learning Platform

The PHN learning platform provides instant access to almost all On-Demand courses and some Live-Online courses.

Transfers, Cancellations, & Refunds

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Group Training

Want to bring one of our courses to your company or organization? Many of our courses are ready to be delivered In-Person, Live-Online, or On-Demand to groups and teams. For more information, including group pricing and quotes, please contact [email protected]

Training Questions?

Please contact [email protected]