MuteBoard® 4 | Timber Wall Soundproofing

For new and existing frames that separate rooms, MuteBoard® 4 is an upgrade to MuteBoard® 3. Its four layers helps to protect against airborne noise in tight fitted areas in homes and workplaces.

  • Airborne: 48dB*
  • 27mm
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MuteBoard® 4 Internal is a wall soundproofing system that seeks to either install MuteBoard to an existing stud frame, or the creation of new ones to split up an area into multiple rooms. Where the available depth of room is at a premium, MuteBoard® 4 Internal will help to retain this while producing a high performing acoustic barrier against common household or workplace noise issues. This combination of stud framework and MuteBoard® 4 will help to reduce raised airborne noise issues that standard plasterboard or acoustic plasterboard will not be sufficient in reducing. This system also includes Acoustic Mineral Wool to be fit between the studs, at no less than 45kg per m3, and use of Isolation Strips around new timber or metal frames to separate it from adjacent surfaces that could be prone to causing Flanking Transmission. It is all these materials combined that make it ideal for 'future-proofing' against noise issues that could be found in the common household or workplace,  or between existing rooms that suffer from intrusive background noise levels.



  • Slimline solution
  • System thickness from stud frame 27mm
  • Easy to install with a little background in DIY or joinery
  • 48dB* for Airborne (where a higher number is desirable)* (details are available on the 'System Performance' tab above).
  • Compliant with Part E Building Regulations (England, Wales, Northern Ireland and the Republic of Ireland) (details are available on the 'System Performance' tab above).
  • Be sure to check for 'Flanking Transmission' in adjacent surfaces as these can affect acoustic performance.


Combining essential soundproofing materials.


  • MuteBoard® 4 - 6mm PE crosslinked foam (closed cell) (provides a slender form of separation from timber to decouple)
  • MuteBoard® 4 - features two layers of Mass Loaded Vinyl (a high mass for reducing airborne sound)
  • MuteBoard® 4 - Acoustic Plasterboard (dense Plasterboard option for reduction of airborne noise).
  • Acoustic Mineral Wool 45kg or 60kg per m3 - (essential for reducing resonance between studs, and to reduce sound 'flanking' into other rooms)
  • Isolation Strip P8 - is a deviated, rubbed crumber material to separate from adjacent surfaces (to achieve the best performance against vibration from impact and low-frequency noise)


A Guide to Soundproofing a Wall

If you are new to soundproofing, or you are unsure which system to use for your needs, or for any requirements, you can learn more thanks to our handy guide by clicking on the icon below. You can also pick up the phone to say 'hello' or leave us a message, and we will together find out how we can help you best - 01937 588 226!



How to Install

  • Isolate the stud framing using Isolation Strips.
  • Acoustic Mineral Wool between stud framing.
  • 9 x 5mm x 60mm wood screw fixings into each MuteBoard® 4 into stud work leaving a 2-5mm gap from adjacent walls, floor and ceiling.
  • Fix MuteBoard® 4 with tapered edge vertically.
  • Fill all gaps with Acoustic Sealant.


Alternatively, we provide Acoustic Installation across the UK to fit all of our systems - they come with a wealth of experience in the field so you can feel comfortable that the right installation methods are being carried out.


Contact us | 01937 588 226

All of our systems contain a high level of mass. If there are any structural concerns, you will want to consult a Structural Engineer to discuss your requirements.

*Our Typical Performance Results and Noise Reduction Guidance are provided to indicate the results that have been achieved in previous tests but are not guaranteed to a specific site as multiple factors can affect this.

*Our guide price includes all acoustic materials and ancillaries required

We endeavour to display the most up to date testing and to manage expectation as best as possible. Please do contact us to discuss your requirements.

Noise Reduction Guidance*

  • Raised conversation
  • Raised TV and light music use
  • Other household use


Compliance with Part E Building Regulations and Scottish Building Regulations


  • When installed under the correct guidance this system is compliant with the required acoustic values for airborne transmission featured in Part E Building Regulations; these are applicable across the UK, excluding Scotland (England, Wales, Northern Ireland) and the Republic of Ireland. We would advise conducting a Sound Test to survey any planned conversions in existing properties before concluding on an Acoustic System.
  • We would advise conducting a Sound Test in regards to Building Standards Technical Handbook 2017 for Scotland to survey any planned conversions in existing properties prior to concluding on an Acoustic System as well as considering the installation of MuteBoard® 4 on both sides of the partition, Scottish Building Regulations contain higher targets than that of Part E, our Legal Requirements section has the required acoustic values.

  • For additional guidelines and requirements for non-residential buildings; for example, Gyms, Nightclubs and Industrial focused purposes, please do contact us so we can discuss your available options

Noise issues and lack of privacy in the home can induce all different levels of stress, from sleep deprivation to verbal conflicts. We often find that the majority of noise issues that people describe around this topic is nothing more than common sounds that a house would expect, it is just that some homes are poorly insulated against sound that they pass almost freely through what is called flanking paths, and of course directly through partitions - walls, floors and ceilings. A significant amount of UK housing stock built or converted into apartments before the introduction of Part E Building Regulations in 2003 would provide little to no soundproofing and would not require any further works for it is not a retrospective action. MuteBoard® 4 Internal is a focus primarily on conversion projections as it is uncommon to find new builds using frameworks to separate dwellings, although not unheard of for it is a cheaper method of building. With these current partitions there would usually be a simple framework with thermal insulation and standard plasterboard applied to either side, so when installing this system - a vast improvement is to be expected in the reduction of sound to reinstate privacy and the reduction of neighbour noise. These can also be installed in single dwellings to improve the soundproofing between bedrooms and bathrooms (best installed on the outer of the stud frame and not facing into the bathroom because of moisture, or a moisture board can be installed over the top to protect that acoustic plasterboard layer.

Noise issues in the workplace can be incredibly distracting; this can hinder productivity and concentration - we have written in detail on a focus for office workplace environments here. For conversion partitioning or existing partitions, our MuteBoard® 4 Internal will yield a dramatic improvement over simple building materials often put in place, especially when all cavities are treated adequately, both in the next partition wall and adjacent surfaces - walls, floor and ceiling voids. For when acoustic privacy in quiet environments is required, doctors surgeries, human resource departments in the conducting of interviews or even gym wellness areas - we would make use of MuteBoard® 4 Internal to retain space where possible if there are limitations in this area.

Part E Building Regulations are required for all new conversions and new builds, unless there is a scenario to where any particular circumstance exempt you from requiring to (where you will want to speak your Building Control or Council Officer) such as listed building status - you will need to have your building project pass each target. It may only be that conversion projects would concern using an internal framework to separate dwellings in this scenario, and rarely new builds expect for Houses of Multiple Occupancy. MuteBoard® 4 Internal as a full system being MuteBoard® 4  installed on both sides of the frame would in the majority of cases pass the Part E Building Regulations - but you will want to make sure this is installed in conjunction with adequate soundproofing on its adjacent surfaces to prevent the failure of an acoustic test through flanking transmission

Depending on the age and thickness of the stud frame, this will often determine whether it can support the additional weight of MuteBoard® 4. Timber and metal frameworks less than the 75mm may require replacing or strengthening to support this extra weight - you will also need to consider the importance of the Acoustic Mineral Wool installed here when tallying up the total weight. Specialist structural engineers (if it is a large project) may be consulted during the large scale surveys to consider the broader aspects of construction when adding significant weight, local joiners with experience will also most likely be able to advise on smaller home projects. If there is any sign of damage such as cracking or bending - then we recommend replacing the frame. New stud frames will also benefit from the use of our Isolation Strip to provide decoupling from the surrounding surfaces, helping to reduce immediate vibration transfer.

Just as above, this all depends on the thickness of the stud frame, but the principle of applying Acoustic Mineral Wool to any cavity is to make sure you do not compress between two surfaces, these two surfaces, for instance, is between the two plasterboards on a stud frame. Forcing in acoustic insulation of 200mm into a 100mm cavity is not beneficial and will create an immediate path for the sound to travel through. Air gaps are helpful when coupled with an insulating material as it allows it to absorb noise found in the cavity. The rule here is to have at least a 10mm air gap on either side, so if the stud frame is 100mm in thickness, use a 75mm Acoustic Mineral Wool.

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