Old School soundproofing still accepts that batt protection is a decent soundproofing specialist. There are some great sound batt protections out there, for example, Roxul AFB and Reinforced rationale’s fortified cotton protection and they function admirably for both soundproofing and warm security, but no batt protection is sufficiently able to remain solitary as the sole soundproofing material in a wall roof or floor gathering.
On the off chance that you can manage the cost of a decent batt protection I generally Acoustic Foam energize it, yet in the event that you are soundproofing as roof and are not exactly worried about the warm parts of the roof then I feel adding drywall pieces slice to fit flawlessly into the joist pits and screwed to the sub floor above would be considerably more compelling than any batt protection. Presently to super charge this application I suggest that before you screw the bits of drywall to the sub floor you apply Green Paste sound hosing compound to the rear of the drywall pieces preceding screwing them to the lower part of the sub floor.
Green Paste is a visco flexible damping compound that is overwhelming the soundproofing business. It comes in caulk tubes and is applied utilizing an enormous quart size caulk firearm. Fundamentally you would slice the bits of drywall to fit snuggly between the joist cavities. You would the generously apply the Green Paste to the rear of the cut drywall and afterward screw it to the lower part of the sub floor. The Green Paste will be sandwiched between the drywall and the lower part of the sub floor. The more tight you screw the drywall down, the better the soundproofing will be. Basically, the bits of drywall brandishing the Green Paste in their rears with become a best solid hosing framework that will hose the effect commotion from above well before it can be communicated into the joists and at last into the roof underneath. Presently, is all the more better for this situation? Totally, assuming that you can twofold or triple the Green Stuck layer of drywall you will for sure expand the hosing skill of the drywall and the sub floor and add extraordinarily to the soundproofing try.
Whenever you have introduced your layers of Green Stuck drywall pieces into the joist depressions, this present time would be a decent opportunity to introduce your sound or warm batt protection.