ᐅ Sound Insulation – Noise from the Bedroom

Created on: 13 Jan 2019 07:46
M
Mummy
Hello everyone,

We have a solid concrete block house made of aerated concrete (Ytong) and chose a wall thickness of 36cm (14 inches) between our bedroom and the children’s room instead of the originally planned 16cm (6 inches). Unfortunately, since our TV is placed directly against the wall to the children’s room, almost every word from the TV can be heard on the other side. We’re now hesitant to do anything else like watching TV in the bedroom to avoid disturbing the little ones.

What options for additional insulation between the rooms make sense here? So sticking egg cartons to the wall is out of the question. We have considered whether it would be sensible to install a drywall partition in front of the existing wall and insulate it with mineral wool to achieve the desired effect.

It might also be important to know that the entire floor on this level is installed continuously without gaps at the thresholds, and the ceiling above consists only of drywall, a vapor barrier foil, and a layer of insulation wool, with the open attic directly above that. Therefore, I’m not entirely sure whether the noise transfers mostly through the wall, over the floor, or through the ceiling and where the best place to start would be.

What do you think?
Thank you very much,
Martin
M
Mummy
13 Jan 2019 16:04
Mycraft schrieb:
A partition wall with soundproof drywall including soundproof filling material is definitely a good idea. Soundproof doors rated SK1 (or better) with matching frames and drop seals on both sides.

Would anything additional be necessary regarding the ceiling (i.e., above)?
Mycraft13 Jan 2019 16:06
It depends on the existing construction.
M
Mummy
13 Jan 2019 16:15
Mycraft schrieb:
It depends on the existing construction.

As mentioned... the ceiling height is about 2.60 meters (8 feet 6 inches). Above that is the wooden roof structure. On top of that is a vapor barrier and then a layer of insulation (cold roof). Below is drywall mounted on aluminum tracks.
Mycraft13 Jan 2019 17:05
Yes, but the ceiling is not continuous. It is interrupted by the walls, and insulation is installed on top of that. Therefore, this should be sufficient.

Otherwise, you could also screw on one or more layers of soundproof drywall if necessary.
H
hanse987
13 Jan 2019 18:43
Turn on the TV and go up to the attic. Then just listen to what comes through.
M
Mummy
13 Jan 2019 19:11
Great! Thank you very much for your tips!