Soundproofing Strategies states: May well eighteen, 2015 at one:32 PM I'd personally test to handle the hole during the garage door first, Potentially with a few large duty weather conditions stripping. Then, such as you advise, insulated amongst the joists. Safe N’ Audio isn't as terrific of a thermal insulation https://waylontagjm.thelateblog.com/32993455/noise-reduction-an-overview