Built for architects and engineers to simplify compliance and accelerate delivery.



Seven years ago, BetterBuilding started as an energy modelling platform. Today, it's grown into something broader: a unified platform for energy, daylight, carbon, and moisture modelling. And as of now, we're officially available in the United States.
For our US launch, we've chosen to focus on ASHRAE Appendix G 2019.
Is it perfect? No. Does it have its share of quirks and frustrations? If you've ever worked through an Appendix G submission, you already know the answer to that. But that's precisely why we decided to tackle it head-on. The compliance process is notoriously labour-intensive (a diplomatic way of saying "tedious"), and our core strength, parallel compliance automation, is built to address exactly that kind of problem.
Over the coming months, we'll be expanding our Appendix G 2019 workflows, adding support for the 2022 version, and developing dedicated pathways for the prescriptive and energy cost budget methods. There's a lot on the roadmap. We're already working on live projects though, and we can see where this is heading.
Right now, you're basically flying blind. You pick a compliance path on day one, before you really know if it'll work, and cross your fingers. And when it doesn't work? You've just burned weeks. Your timeline's shot. Your budget's hurting. And you get to explain to the client why you need to start over.
Sound familiar?
Here's what we built. You model your building once, and we automatically run both Section 11 and Appendix G at the same time. Not one after the other. Not as some manual backup plan. Actually simultaneously.
So instead of:
Pick one → Build model → Hope it works → Restart when it doesn't
You get:
Build model → See both paths instantly → Pick the winner

No magic. No complexity. Just smart automation powered by EnergyPlus.
EnergyPlus is the gold standard for building energy simulation, used by engineers and architects worldwide, validated by decades of research, and trusted by code officials everywhere.
We've built our parallel compliance workflows on top of this proven foundation. When you run both Section 11 and Appendix G simultaneously, you're getting the same rigorous, accurate simulations you'd get if you ran them separately. Just faster and smarter.
How It Actually Works
✔️ You build your model (same as always, no new learning curve)
✔️ We generate both baselines automatically (Section 11 Budget Building and Appendix G Baseline, following all the rules)
✔️ EnergyPlus runs both simulations together (parallel processing, not sequential)
✔️ You get one dashboard showing both paths (clear, comparable results)
✔️ Need to adjust for local codes? Override.
We're putting the finishing touches on something we think is going to change how you approach ASHRAE 90.1 compliance.
On January 12th, BetterBuilding launches full support for ASHRAE 90.1-2019 Section 11 and Appendix G parallel compliance workflows.
This isn't a beta. This isn't a preview. This is production-ready, tested, and ready to use on your next project.
What You'll Get on Day One
✔️ Full Section 11 Performance Cost Index (PCI) method
✔️ Complete Appendix G Performance Rating Method (PRM)
✔️ Simultaneous parallel processing
✔️ Automated baseline generation for both paths
✔️ Real-time compliance feedback
✔️ Flexible overrides for jurisdictional requirements
✔️ Comprehensive documentation for both methods
The platform will continue to evolve as we respond to the specific needs of the US market. That's not a euphemism for "it's not ready." It means we're actively refining based on real project feedback.
What we're aiming for is straightforward: less time spent wrestling with compliance workflows, fewer resources dedicated to getting the outcome you need, and more capacity to actually add value to the projects you're working on.
Because here's the thing. Minimum compliance is the floor, not the ceiling. If your current process leaves you with just enough time and energy to scrape over the line, you're not really in a position to push for better outcomes. We want to change that. Less time on the compliance grind, more time doing work that actually matters.
Every new user has the opportunity to kick off with a quick, 20-minute demo and a free 14-day trial, book it whenever works for you.
Book a free 20-minute demo with one of our team. We’ll focus on what matters to you, when it suits you. Just pick a time that works.
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