When sound proofing a wall separating two rooms,whats the best way to fill the cavity for the sound proofing.?
Question:Or distortion or for a total silencing.And if using the "egg boxing effect" which way would you face the cones ,open end to wall or closed end to wall.
jaberlight or polystyrene
the make insulation for between the walls for sound proofing!
Lead is a notoriously good sound insulator, and very heavy. It reflects sound back into the room for good audio effect.
It is also expensive.
With insulation jackass.
The most popular and cost affective material to use is a mineral quilt from companies such as Knauf insulation who can provide acoustic insulation. This type of material is used in the construction of new houses and conforms to the current building Regulations. If your looking for something more specialised you need to go to an acoustic specialist. Sorry cant help you with the cones!!
You want the egg box material situated so that the sound waves have the most area into which to be absorbed- typically that means that the 'top' of the egg box points toward the sound source. For the best soundproofing, you should put the egg box material on the outside of the wall (between the sound source and the wall) and then put the heaviest acoustic insulation you can find in between the walls. You can then put more egg box material on the outside of the other wall if you need to. (Cork board or hanging tapestries are more attractive ways to deaden sound waves before they get to the wall if you're worried about the look). The idea, though, is to have something absorb the waves before they get to the wall.
the best way to do it is to build the wall in metal studs as they do not transmit sounds like wood does ..and then infill with rock wall sound proofing bats ..these are both heavy and dense and give great soundproofing ..you fix the plaster boards to the metal studs with self tapping screws..its important to seal between the floor joist and all so the ceiling joist
You can use mineral wool insulation, but you need to choose the correct grade for sound not thermal insulation. Thermal grade mineral wool is 20 grammes, sound grade is 40 or 65 grammes, that's twice or 3 times as heavy. You can also use a plasterboard, mineral wool, plasterboard, mineral wool, plasterboard sandwich.
the best insulation material for sound proofing is celotex by kingspan, it comes in various thicknesses to suit your studwork or cavity, can be cut with an old saw or i find an old carving knife best. and the best thing with it is it does not itch!
Fix the plasterboard (link below) directly to the wall using either drywall screws of adhesive.
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