If the upstairs residents don't cooperate, or it is inevitable, they can only find a way to solve it themselves. You can add a ceiling to your house to reduce the noise upstairs. This effect is still not very good. It's best to discuss with the residents upstairs and ask them to lay soundproof floors upstairs, which can effectively reduce the noise upstairs. Wall is the main component of the building, covering all sides of the building, and it is the main source of noise transmission.
Due to the large area and variety of indoor wall decoration materials, noise passes through the wall, which makes us unavoidable. Generally, the walls of buildings will be made of concrete and solid bricks, which can better isolate noise. For some hollow walls or partitions, it will naturally have a greater impact. If conditions permit, we can tear down the original wall and directly replace it with a soundproof wall. If conditions do not allow, you can add a layer of sound insulation wall to the original wall. In addition, when we can replace the indoor decoration wallpaper with thick and uneven surface in the decoration design or later period, the experiment shows that this has better sound insulation effect than the wall with smooth surface. Neighborhood relations will be more harmonious without all kinds of noise.
Bian Xiao made a detailed interpretation of this issue, hoping to help everyone. You can leave me a message in the comments section if you have any questions. You can comment with me more. If there is anything wrong, you can also interact with me more. If you like the author, you can also follow me. Your praise is the greatest help to me. Thank you.