The Trademark Soundproofing website suggests using a 5/8-inch-thick drywall panel against the ceiling; you simply apply dampening compound to the back of the drywall and screw the drywall into the ceiling joists. The compound is effectively sandwiched between the ceiling and new drywall to dampen sound even further.
Can you add sound proofing to a ceiling?
If you have an existing ceiling, you may not want to go through the expense of tearing it out and starting over just to add soundproofing. ... In fact, keeping the existing ceiling and adding more soundproofing may provide even better soundproofing than ripping out the drywall and starting over.17 nov 2017
How do I stop noise coming through my ceiling?
- Single layer drywall.
- Double layer drywall.
- Damping compound.
- Hat channels and resilient soundproof clips.
- Floating joists.
- Soundproofing the floor above.
- Adding Underlayment to the floor above.