Not sure if you’re referring to USA, but the energy code in the US is quite strict. Since the 80s insulation has been required and in the last 20 years the code has tightened to be quite strict. Homes in Latin America have none, no energy code, and European housing stock predates these requirements. Doesn’t mean US homes don’t consume a ton of energy but they are probably way better insulated than average.
Not sure if you’re referring to USA, but the energy code in the US is quite strict. Since the 80s insulation has been required and in the last 20 years the code has tightened to be quite strict. Homes in Latin America have none, no energy code, and European housing stock predates these requirements. Doesn’t mean US homes don’t consume a ton of energy but they are probably way better insulated than average.