Soundproofing Strategies suggests: May perhaps 18, 2015 at one:32 PM I'd consider to handle the gap in the garage doorway to start with, Maybe with some hefty responsibility weather conditions stripping. Then, like you recommend, insulated between the joists. Protected N’ Seem just isn't as wonderful of a thermal insulation https://edwingueoy.blogolenta.com/31568884/the-definitive-guide-to-window-soundproofing