Close. Damper doesn't work by mass loading though. Instead it works by constraining motion. CCF is not a noise blocker, not at all. Just an isolation layer and it can help with two surfaces that rub each other. MLV is MASS loaded vinyl. It is a blocker. In order to block noise you need mass. MLV is the cheaper version of lead sheeting which works better, but is cost prohibitive. As for jute. It is an absorber, won't help so much in blocking outside noise but does do some absorption. Cotton wadding is what I would prefer for this.