Weirdly I was talking to a building surveyor recently about how there are new building insulation products coming out made out of cork[1] and some made out of m

Weirdly I was talking to a building surveyor recently about how there are new building insulation products coming out made out of cork[1] and some made out of mycelium (fungus)[2]. So instead of insulating your walls using something like polystyrene which is pretty gross to work with (produces a lot of nasty polystyrene dust when you sand it down etc) you can have a lovely natural product that is sustainable and also has similar thermal and (istr better) flame-retardant properties. [1] https://www.corkstore24.co.uk/shop/11-thermal-and-sound-insulation-expanded-cork-boards/ https://www.corkstore24.co.uk/shop/11-thermal-and-sound-insu... is the sort of thing I guess he was talking about [2] https://ukgbc.org/resources/mycelium-insulation/ https://ukgbc.org/resources/mycelium-insulation/ website seems to lean into the idea that this is basically mushrooms which seems a bit weird but whatever