The second part of my conversation with Janna. In this episode we get into the nitty gritty of airtightness, and how we've come to appreciate its need, while not being 100% happy about the materials needed to achieve it. We talk about the importance of fresh air in your building, how C02 will make us unhealthy and sluggish, plus the best way to get the fresh air without losing all your heat.

Grain Architecture - https://www.grainarchitecture.co.uk/
Architype - https://www.architype.co.uk/
Llamacroft - https://www.llama-croft.com/
Seb Twitter - https://twitter.com/SebLaanLomas
CO2 Monitor - https://uk.rs-online.com/web/p/air-quality-monitors/2676379
No more digging - https://nomoredigging.co.uk/
Stop Digging - https://stopdigging.co.uk/
Firth Construction - https://www.firthconstruction.co.uk/
Centre for Alternative Technology CAT - https://cat.org.uk/
IndiNature - https://www.indinature.co/
Insulation Saw! - https://www.toolstation.com/bahco-insulation-handsaw/p97588
John Gilbert Architecture - http://www.johngilbert.co.uk/
21 Degrees (windows) - https://www.weare21degrees.co.uk/

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Llamacroft, a bio-based Passivhaus Pt2 - Janna Laan Lomas - BS125