Passive House Airtightness Testing: The Field-Ready Add-On for Serious Testers
A practical workflow for testers who already know how to run a blower door, but want Passive House-level clarity: volume + what’s in/out, low-flow stability, leak-finding that moves the number, and certifier-ready reporting.
This isn’t “another Passive House webinar”
It’s a repeatable field process you can apply on the next job.
A practical workflow for testing Passive Houses without guesswork
Clear steps for pre-brief, boundary + volume sanity checks, testing, fixes, and reporting.
For ATTMA L1 testers and anyone tired of vague airtightness advice
If you can already test, this helps you do it confidently at Passive House level.
Built for real sites
Short lessons, reusable tools, and examples of what goes wrong (so you avoid it).
Who this course is (and isn’t) for
Already know how to run a blower door? Good. Now make it Passive House-proof.
This is an add-on for competent testers. We skip the basics and focus on the decisions that matter at very low leakage rates.
- Airtightness testers
- Passive House consultants
- Builders / site leads
- Certified + “Passive-ish” projects
When this course is the wrong tool for the job (yes, really)
- If you’ve never run a blower door test before — do your base qualification first.
- If you want a general Passive House overview — this is testing + reporting focused.
- If you want product-specific fan/software training — we stay brand-agnostic.
The core problem: “Normal” testing falls apart at Passive House level
Why standard airtightness workflows struggle when n50 gets very low
Small choices start swinging the result: what’s in/out, volume assumptions, baseline stability, wind sensitivity, and documentation.
The hidden risks: false confidence, flaky results and grumpy certifiers
- False confidence: the building “feels airtight” but the number doesn’t agree.
- Flaky results: repeat tests don’t match and nobody can explain why.
- Grumpy certifiers: reports get questioned, delayed, or kicked back.
How a structured Passive House test workflow fixes all three
Same process every time. Cleaner data. Better alignment with the site team. Reports that are easier to accept.
What you’ll actually learn in 2–3 hours
Before the test: volume calculations + what’s in and what’s out
A tester workflow to sanity-check design volumes, avoid grey-zone arguments, and document assumptions early.
What’s different about Passive House airtightness (targets, timing, politics)
How to plan and sequence so test day isn’t a drama.
Drawing the test boundary without starting a site argument
A simple way to define it, write it down, and get everyone aligned.
Choosing methods and settings when the building is too airtight
Keep results stable and defensible when flows are tiny.
A leak-finding workflow that actually changes the final number
Prioritise what matters, document fixes, retest efficiently.
Reporting in a way certifiers like, and project teams don’t panic over
Clear boundary narrative, evidence, and calm wording.
Inside the course: modules and materials
Short, focused lessons you can watch between real jobs
Designed for working testers. Quick lessons. Straight to application.
Downloadable checklists, boundary decision tree and reporting templates
Pre-brief checklist, volume worksheet, in/out checklist, test-day run-sheet, leak log, and a clean report template.
Real-world examples from Passive House projects (including what went wrong)
Common failure points, how they show up in results, and how to catch them early.
Optional mini-assessment and certificate to prove you didn’t just hit “play”
Quick quiz + completion certificate (handy for CPD and QA).
How this looks in real life
From “looks airtight” to “passes comfortably” on test day
Less guessing. More margin. Calmer teams.
Before and after: reports that confuse vs reports that get accepted
Clear boundary + volume notes, stable method, and evidence that reduces back-and-forth.
A typical project: first call, pre-brief, test day, final sign-off
Align early, test cleanly, close out fast — with the same run-sheet each time.
Where this saves you time
Fewer re-tests, fewer site arguments, fewer report queries, and less “please explain” admin.
Pricing that respects your time (and your brain)
$149
Self-paced online module (2–3 hours) + downloadable tools + optional mini-assessment and certificate.
Not priced like a casual webinar because you’re getting a field workflow and reusable templates, not just information.
Awkward questions other people dodge
“Can I just piece this together from free content?”
You can. This replaces the patchwork with one workflow and reusable tools, so your method doesn’t change job to job.
“What if my projects are ‘low-energy’ not fully certified Passive House?”
Still useful. Same discipline, usually with more margin and less last-minute stress.
“Will this replace ATTMA L1 or national qualifications?”
No. This is an add-on for people who already test (ATTMA L1 or equivalent experience).
“What if I buy it and realise it’s not for me?”
If you start and quickly realise it’s not a fit, email within 7 days and we’ll sort it out.
Why learn it from us
We’ve tested hundreds of “perfect” homes that fall apart the minute the fan spins up
This is built around what actually fails in the field.
After 15+ years in airtightness and Passive House, we’re allergic to shiny nonsense
No jargon games. Just decisions that hold up under scrutiny.
Our job is not to impress you; it’s to make your next test boringly predictable
Reliable results. Cleaner reports. Less stress.
For global testers, inside or outside any scheme
Built to work whether you’re under ATTMA, another national scheme, or independent.
Final word
If you’re happy rolling the dice at Passive House level, you don’t need this.
Keep doing what you’re doing.
If you’d rather your biggest surprise on test day be the biscuits, this course is for you.
Clear workflow. Reusable tools. Certifier-ready reporting.