Have started planning the cinema room.
And I saw somewhere that building a structure independent from the rest sound isolates quite a lot.
But I have the problem of limited ceiling height, so the question is. What dimension of timber do I need as a "ceiling beam"?? that will only support the weight of double plasterboard.
The room has a width of 3.5m
If you want to maintain as much ceiling height as possible, you can use the acoustic rule, or glue up acoustic panels with holes to achieve the best sound in the room and prevent sound spreading in the rest of the house. Alternatively, consider some designer soundproofing ceilings. Here, you can mount sound-absorbing fabric/panel and then battens in oak, light ash, or according to preference with gaps of 7-15 mm so the sound doesn't bounce around. Couldn't find a picture of the last architectural solution but it's definitely the most stylish solution now.
If you build like an enclosed box OSB-stud-OSB, the stiffness will be higher and you can reduce the height. 45mm should be enough for the studs then. But the question is whether you really need to decouple the entire construction.
You will also need ventilation in the room, do you have a solution for that?
A drawn picture of the situation helps a lot for understanding.
If you're going to this trouble, have you started by contacting an acoustic consultant before you start building? Small money in the grand scheme.
Currently preparing for the relocation of the electrical panel in the house ahead of the start of the same project... but also have 25 tons of stone and concrete that need to be removed before I can start rebuilding walls, etc...
If you build it as an enclosed box osb-frame-osb, the stiffness will be higher, and you can reduce the height. 45mm should be enough for the studs then. But the question is if you really need to decouple the entire construction.
You'll need ventilation in the room too; do you have a solution for that?
A drawn picture of the situation helps a lot for understanding
Hard to draw on a mobile. But it's a basement in raw concrete, and 8" ceiling beams with insulation. Construction I am thinking of now is first a subfloor, with floor chipboard. Then I screw 3" steel studs as a wall, with double gypsum or Osb + gypsum. Then 2" as ceiling joists which are screwed into the metal studs, using a small wood piece as a spacer. You can also hang these from the existing ceiling beams with maybe 3 of these per length: https://www.biltema.no/bygg/byggbeslag/hullband/monteringsband-galvanisert-2000017277# Then 2 layers of gypsum. If it works, how much space do you need for the ceiling beams?
Everything is built with a 5cm gap to the concrete, ventilated skirting boards, and a small fan to circulate the air.
Hiring sound specialists, buying special products is not an option. Trying to make the best of a "cheap" budget. As the remaining 20m2 will be built with the same floor and skirting boards, metal studs with single gypsum, gypsum ceiling screwed into existing beams. Completely new electricity etc., for 60k.
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looks really stylish to mount both on walls and ceilings.
