> old buildings do a very good job maintaining comfort, and that modern buildings often fail to do the same or only keep up at enormous expense Old buildings d

> old buildings do a very good job maintaining comfort, and that modern buildings often fail to do the same or only keep up at enormous expense Old buildings did not have: thermal insulation, ventilation with heat recovery, timed ventilation, etc. While new buildings won't even get a building permit without all that. There's a minimum required energy efficiency. I have to ask: what is your experience with civil egineering?