Hey dudes. My house just got renovated and we installed interior insulation (in the walls) for it to be soundproofed. As well we had those sound bars that absorb sound installed and a solid wood door. BUT it is still not totally soundproof infact there is not much of a difference at all.... My friend stated that we have to not only get interior insulation but exterior as well. So does anybody know what kind of foam we should install to get this room more sound proof? I think a lot of it is escaping through the door. I know its hard to get a room totally sound proof but we just need some major dampening to help with this room, it will be a jam space and right now too much sound is escaping. Does anybody know what specific materials we should use?