How to Soundproof a Stud Wall
How to soundproof a stud wall and reduce sounds generated in common domestic situations, conversation, TVs, music and computer games. Increase the sound insulation between rooms in your home by soundproofing the stud walls that separate one room from another.
View our complete range of wall soundproofing products.
Noisestop Systems provide a range of acoustic walls used to soundproof stud walls
Our range of acoustic walls can be used to soundproof existing internal walls. Stud Wall Kit 50mm, Stud Wall Kit 75mm, Stud Wall kit 100mm. These acoustic wall kits can also be used if you are planning on dividing a room. Use a stud wall kit to soundproof party walls for high levels of soundproofing.
Typical stud walls are constructed of a timber or metal frame that have plasterboard attached to either side; some stud walls are insulated with a low density thermal insulation quilt. This type of construction will offer very little resistance to the passage of sound. Successfully soundproof stud walls using the following methods. Increasing the mass of the wall and creating separation will stop sound passing through the walls.
Stud Wall Kits
Noisestop Systems supply three thicknesses of stud wall kits. These solutions can be used to increase the sound insulation between rooms or applied to party walls to stop sound transfer between properties.
- Stud Wall Kit 50mm – System supplied with 50mm DFM acoustic insulation
- Stud Wall Kit 75mm – System supplied with 75mm DFM acoustic insulation
- Stud Wall Kit 100mm – System supplied with 100mm DFM acoustic insulation
Soundproof a stud wall by removing existing plasterboard
For the best level of soundproofing for an existing stud wall remove the existing plasterboard from one side of the wall. This will leave the cavity between the studs exposed, infill between the studs with DFM acoustic insulation slabs. The depth of the existing stud will determine which thickness to use; this will normally range between 50-100mm for most stud walls. Fill between the studs with insulation and fix Soundbreaker bars to the stud work, attach horizontally across vertical studs using screws. The bars should be spaced at 600mm centres. The wall should be finished using either specialist soundproofing panels or two layers of acoustic plasterboard. Use AC50 acoustic sealant to fill all edges and joins of the boards.
Fitting soundproofing to a stud wall
- Remove any surface mounted items from the wall, coving, skirting board, dado rails and electrical points. Once the installation is complete attach back onto the wall.
- Remove the plasterboard from one side of the wall, for optimum results remove the plasterboard from the side of the wall were the noise is coming from, make sure that any nails and screws are also removed from the studs.
- Infill the exposed cavity of the stud wall with DFM acoustic insulation, slab thicknesses can vary to suit the depth of the existing frame work; stud walls are constructed using timber battens between 75-100mm thick. Cut the DFM slabs with a hand saw to tightly fit, cut them slightly larger than the opening to ensure a tight fit, the slabs will friction fit so you will not need additional fixings to hold it in place.
- Attach the soundbreaker bars to the stud. Fix the bars in place with screws. Fix the bars at 600mm centres horizontally across vertical studs using screws. Screw the bars into the studs by screwing through the pre-drilled holes that run along one edge of the soundbreaker bars. The wider corrugated flange should be facing out into the room with the holes at the bottom.
- You are now ready to fix the plasterboard or acoustic panels to the bars, always use dry wall or wood screws to fasten to the bars. Seal all edges and joins of the boards with an acoustic sealant; seal the perimeter of the wall with the acoustic sealant.
- You can extend electrical cables through the wall by cutting a hole for the cable to pass through, use sealant to seal the hole afterwards.
- Finish the wall by plastering and attaching the wall furniture to complete the installation. You can hang pictures and mirrors on the wall; we do not recommend drilling into the wall to hang heavy objects as this can reduce the effectiveness of the soundproofing.
Stud Wall Kits Used to Soundproof Existing Walls
Our stud wall kits can be used to soundproof party walls, studio walls and home cinemas. Use a stud wall kit to line existing walls for high levels of soundproofing. If you have enough space in the room you are soundproofing use Stud Wall Kit 75mm or Stud Wall Kit 100mm for studio walls or for excessive noisy neighbours.
Use a stud wall kit to soundproof an existing wall for high levels of soundproofing.
Stud Wall Soundproofing Using Direct to Wall Acoustic Panels
If you do not want to go to the extent of removing the existing plasterboard you can increase the sound insulation of a stud wall by using direct to wall soundproofing panels. Applying this type of panel over the existing plasterboard will increase the sound insulation of the wall. For the best level of soundproofing use the Noisestop Acoustic Panel to soundproof your stud wall. Fit the Noisestop Acoustic Panel directly over the existing plasterboard.
Flanking Noise How to Stop it
When you are considering any wall soundproofing solution you should also consider flanking noise. Noise that transfers through a building through voids such as floor and ceiling cavities between the joists, Sound will not only transfer directly through a wall it will find weaker points and easily pass between rooms through these areas. The best method for stopping flanking noise is to insulate between floor and ceiling joists, insert DFM acoustic insulation against the wall between the joists, filling the depth of the cavity and coming into the room about 600mm. This will block and absorb any sound that will transfer over or under your wall. We recommend that you use 100mm 80kg/m³ DFM for this.
Key Points to Soundproofing a Wall
- Use thin direct to wall panels to stop general domestic sounds through walls or if you have limited space but need to increase the level of sound insulation of your walls.
- Achieve high levels of soundproofing using different combinations of products; wall soundproofing kits will offer the highest level of noise control.
- Consider building a new wall with a 25mm gap from the existing wall for extra separation.
- A complete wall soundproofing solution would include treating the problem of flanking noise.
- Increasing the mass and creating separation is the only way to reduce airborne and impact noise through a wall.
- Light weight foams or egg boxes will not soundproof a wall.
For more information on wall soundproof products, take a look at Noisestop Systems complete wall soundproofing range.
We hope this page has helped you decide how to soundproof a wall. For more help on soundproofing, we have further information on how to soundproof a wall, how to soundproof a room, how to soundproof floors and how to soundproof ceilings.
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