Installing a soundproof ceiling
This video from Rockwool North America demonstrates some principles of soundproofing a room from upstairs noise. They're using Rockwool (Roxul) Safe 'N Sound batts -- a dense, fire-retardant product that insulates for sound much better than fiberglass, and is flame-resistant.
I'll add two more suggestions here.
1) Before you add the batts, affix a layer of drywall with Green Glue (and a few screws) to the backside of the upstairs subfloor. This should add some mass and dampening to the footfalls from above. This means cutting a length of drywall to fit against the flooring, between each ceiling joist.
2) Use a dual-layer soundproof drywall, not just any drywall, for the ceiling itself. A single layer of drywall -- even though it's hung on the resilience channels -- will still not be as effective without further mass or dampening. Look into QuietRock or Supress drywall.
You can buy Rockwool (Roxul) insulation from Amazon, Lowe's, and Home Depot.
Here's the video!
Post a Comment