That’s interesting. In Germany and Belgium many renovations involve putting insulation (PUR blocks often) on outside of the building and also for new buildings it’s usually outside insulated and then an outside layer that protects the insulation. Inside insulation happens, but it’s considered less good than outside, because of leaks and they say outside insulating helps the bricks/concrete “save” the heat like a battery when they are part of the protected volume instead of outside of it.
That’s interesting. In Germany and Belgium many renovations involve putting insulation (PUR blocks often) on outside of the building and also for new buildings it’s usually outside insulated and then an outside layer that protects the insulation. Inside insulation happens, but it’s considered less good than outside, because of leaks and they say outside insulating helps the bricks/concrete “save” the heat like a battery when they are part of the protected volume instead of outside of it.
https://www.bonner-energie-agentur.de/fileadmin/_processed_/f/2/csm_AdobeStock_132638304_schulzfoto_M_152a598f94.jpg
It might be the UK is hampered by our lack of space … Outside insulation sounds like a good idea.
There’s a govt funded insulation of cavity walls scandal that’s playing out now.
https://www.bbc.co.uk/news/articles/cxwwr7vyrj0o