Is it the Big M profile?
https://www.handyroofingsupplies.com.au/bigm

Hinged doors for Passivhaus use same solution for top and sides as for windows: multiple seals and locking points.
Bottom of door can be butted up against a low threshold using…

OSB available in Australia is generally not air-tight. Air will also escape through top plates and any penetrations in the external membrane (assuming it has not been taped and…

With the dual interior + exterior membrane solution, the interior membrane is the air-tight layer, so a puncture would be a leakage - if I understand you correctly.
Regarding slab insulation…

The purpose of the blower door testing is to identify any leaks and address them. Even a small puncture will cause the test to fail. The first test is performed…

True. This is why blower door pressure tests are performed during the build of a Passive House. At the end of the build a final blower door test must be…

Condensation is a key concern with Passive House and is taken into account with the modelling.
Looks like the wall make-up here will involve Proclima Intello as an internal membrane.…

It is possible to satisfy Passive House requirements in Sydney with standard 90mm studs and R2.5 insulation. I had a design modelled for Passive House with this wall assembly and…

Thanks for sharing.
Wondering if you could share a bit more info:
who is your builder
what type of windows did you go with and who is the supplier

Hi stacey33
I'm interested to know more about your hempcrete build has progressed and any lessons learnt.
Are you using Tradical or Australian Hemp Masonry…

I rang a number of companies listed here:
https://www.wufi.com.au/wufi-professionals/
At the time I made enquiries, most were very busy and unable to start until after a month or…

You should get professional advice to guide your decisions as it could make a large difference to the amount of CGT you will pay.
Some examples here from the ATO:

Building cost calculator might be helpful for a rough estimate. This one was recommended to me by a builder:
https://www.aaarchitect.com.au/home-bui ... lator.html
To get a more accurate figure,…

That's great information ddarroch, referring to your whole post, but I didn't understand the above comment.
Are you saying 32A circuits for EVs are…

Further update for anyone asking the same question.
After more delays with my project I looked into this again and learnt that at least one Passive House builder in Sydney…

For various reasons I put the project on hold during 2020, but am hoping to push ahead early this year.
I put the same question to the Australian Passive House discussion…

Hi alexp79
Been a while since you posted the above so hoping you read this.
What was the outcome of your investigations into the ERV and enquiries into the products made by…

To get air-tightness in a build, should both internal and external wraps be used, or is the external wrap enough? Is this is case of 80/20 rule, i.e. pay 20%…