I am in the process of plastering the ceiling. Considering whether it might be possible to add a layer of porous board before the plasterboard on the lath structure to reduce sound transmission.
The idea is that the porous board will act as sound-absorbing and resilient, making footstep sounds less audible.
What do you think?
From reading other threads, I've learned that double plasterboards do not significantly reduce footstep noise. Of course, the structure will be soundproofed between the joists placed at cc30.
The idea is that the porous board will act as sound-absorbing and resilient, making footstep sounds less audible.
What do you think?
From reading other threads, I've learned that double plasterboards do not significantly reduce footstep noise. Of course, the structure will be soundproofed between the joists placed at cc30.
Makes little difference, insulation dampens in the joists, but some comes through the beams, hard to eliminate all sound.
Not all sound will, of course, disappear.. However, it is said that a spring-suspended ceiling is the only thing that helps against footstep noise.
However, buying spring-loaded metal studs is not an option. Do you mean that increased weight through double plasterboard would still be preferable?
However, buying spring-loaded metal studs is not an option. Do you mean that increased weight through double plasterboard would still be preferable?
This matches what I have learned.K Kallebo said:
In one of my old manuals, I find the following description of a method to improve impact noise insulation in an existing wooden joist frame: First, place a thin insulation mat on the underside of the joist, then mount plasterboard on new battens attached through the mat. That is, insulation mat instead of porous board.
Why should you have double gypsum, I've not seen anything like that in the houses I've been in, isn't that a bit over the top, regarding joints they lie on the furring strips and don't come apart, except on the short side, suitable then to build in between the furring strips so it becomes rigid there as well.
Now that I've already installed the battens, I'm thinking of attaching strips of the board to the battens through which I'll screw the gypsum with 40mm screws.
Had I thought of it a week earlier, it would have been convenient to put the board up first.
Had I thought of it a week earlier, it would have been convenient to put the board up first.
Must definitely be better than screwing the gypsum directly!K Kallebo said:
We have high ceilings and think that a few centimeters won't matter. With double boards, we can stagger the joints so that we don't need to worry about making them extra solid.L Liteavvarje said:
Additionally, it increases fire resistance, which feels reassuring for an unknown future...
What disadvantages do you see with double plasterboards besides weight, cost, and the reduced ceiling height?
None!K Kallebo said: