Air Tightness Testing Course
Gain expertise in blower door testing, leak detection, and air sealing for single-family homes. Master planning tests, analysing ACH50 results, documenting findings, and delivering airtight, energy-efficient, code-compliant outcomes that clients can rely on. This course equips you to enhance building performance and support energy savings initiatives effectively.

4 to 360 hours flexible workload
valid certificate in your country
What will I learn?
This course teaches planning and conducting precise blower door tests, safe building preparation, and correct equipment setup. You'll master leak detection using smoke, infrared, and pressure tools, develop targeted sealing strategies for critical areas, and practise calculating ACH50, interpreting data, and producing professional reports for energy efficiency and incentives.
Elevify advantages
Develop skills
- Plan blower door tests by setting up, conducting, and documenting airtightness professionally.
- Detect leaks quickly using smoke, infrared, and pressure tools for accurate air sealing.
- Design cost-effective air sealing retrofits targeting clear ACH50 improvement goals.
- Calculate and interpret ACH50 to explain impacts on comfort, energy use, and moisture control.
- Produce client-ready reports featuring leak maps, photos, and proof for incentives.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I'm grateful for everything you do, I've already recommended you to other people...

Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.

Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast and simple to use. The diversity of content and complementary videos really help with learning.

André FelipePrompt Engineering Student
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