> Modern, newly built houses in Sweden Also worth mentioning is that Sweden pushes a lot of retrofitting of older houses, not just new ones. In the 90's, tripl

> Modern, newly built houses in Sweden Also worth mentioning is that Sweden pushes a lot of retrofitting of older houses, not just new ones. In the 90's, triple-pane windows became a legally mandated standard, so every old apartment building that only had double-pane windows had to add a third pane somehow, or change out all the windows or whatever. A lot of older buildings are also adding extra insulation, one complex I used to live in that was built in the 1940's did that after I moved out. They stripped off all the outer layers to get to the brick, added foam insulation blocks, and redid the plaster finish. When I lived there, the complex did the mandatory energy certification and got a shit score, so that's why they had to do it.