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I'd be interested in seeing how they well work, and whether they're not just a horrible compromise in the name of breathability.
NotThamesWater-
I'd be interested in seeing how they well work, and whether they're not just a horrible compromise in the name of breathability.
Wood fibre insulation has been used in Germany for years, most of the companies making it are German.
Dry processed boards are a newer thing but wet processed boards have been around for decades. Wood is a great natural insulator, not just for thermal insulation but also for sound (another reason it appeals to me!).
https://www.youtube.com/watch?v=qpFNArhll1w&ab_channel=BacktoEarth
Fox
No because the panels can (and IMO should, for as building with solid walls) be breathable.
I'm pretty sure we're going to use wood fibre panels, which tick all the boxes of being breathable, hygroscopic and have good capillarity, but also sequester carbon.
If you then do render them you need a breathable render, like lime, but as we're cladding our place with viroc cement boards, my current understanding is that we shouldn't need to render.