I have installed double gypsum boards on one side of a partition wall to dampen sound between 2 rooms. Latex in all the joints. The wall consisted of fiberboards on 45x45 studs, so it got significantly better, although, of course, more soundproofing could have been achieved with stronger studs, separate studs, and insulation in the wall, but that would have been much more work that there wasn't time for (the room next door is rented out, took the opportunity to make noise when the tenant was away).
Now the wall is somewhat soundproof, but it feels like sound travels over the wall. The ceiling consists of thin grooved and rather unattractive boards on a sparse panel, and there is a cavity between the boards and the ceiling insulation. I believe this cavity crosses the partition wall. I'm considering whether to gypsum the ceiling and if so, how? Ceiling gypsum doesn't have taping recesses, so with a single layer of ceiling gypsum there will be gaps between the boards. Is it a good idea to install double layers of ceiling gypsum with staggered joints? Filling and sanding the ceiling is a task I'd rather avoid.... Or should one install gypsum + some kind of sound dampening board and if so, where can I find one?
That part of the house was built in '62, so the amount of plastic in the construction is probably small. Flat roof.
Now the wall is somewhat soundproof, but it feels like sound travels over the wall. The ceiling consists of thin grooved and rather unattractive boards on a sparse panel, and there is a cavity between the boards and the ceiling insulation. I believe this cavity crosses the partition wall. I'm considering whether to gypsum the ceiling and if so, how? Ceiling gypsum doesn't have taping recesses, so with a single layer of ceiling gypsum there will be gaps between the boards. Is it a good idea to install double layers of ceiling gypsum with staggered joints? Filling and sanding the ceiling is a task I'd rather avoid.... Or should one install gypsum + some kind of sound dampening board and if so, where can I find one?
That part of the house was built in '62, so the amount of plastic in the construction is probably small. Flat roof.
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Tool enthusiast
· Stockholm
· 1 397 posts
Gypsum is an excellent "soundboard" for this purpose. As you already know, you could have further improved the partition's sound isolation. 2 layers of gypsum on the ceiling with staggered joints is a good match for your wall. A compromise is to use 1 layer of standard gypsum followed by 1 layer of short plank.