MuteClip® Double | Timber Ceiling Soundproofing

Joist ceiling soundproofing to reduce airborne and impact noise. Everything from noisy neighbours to workplace soundproofing is covered with our versatile MuteClip®. No need for additional studs.

  • Airborne: DnT,w + Ctr = 54dB*
  • Impact: L'nT,w = 53dB*
  • 74mm
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MuteClip® (Patent Pending) Double is our most popular option for projects that require a ceiling soundproofing solution that provides high acoustic performance and is space conscious with only a 75mm loss of space. It creates fewer points of contact with joist ceiling using our MuteClip™, which is composed of a dual-density rubber in a galvanised metal case, acting as a shock absorber. The MuteClip® Channel affixes to the MuteClip® and the new soundproof ceiling which is composed of two layers of dense Acoustic Plasterboard 15mm and Tecsound suspends away from the ceiling joist. What this ultimately results in is a vastly improved reduction of airborne noise, especially in the more problematic lower to middle-lower frequencies, as well as reducing immediate vibrations.



  • Easy to install, no incorrect fixing or shortages unlike standard Resilient Channel
  • System thickness from the bottom of the joist 74mm
  • 54dB* for airborne (where a higher number is desired) (details are available on the 'System Performance' tab above).
  • 53dB* for impact  (where a lower number is desired) (details are available on the 'System Performance' tab above).
  • 10dB - 20dB estimated improvement for airborne noise and 20dB estimated improvement for impact noise* (where 10dB is a 50% reduction as perceived sound loudness).
  • Compliant with both Part E Building Regulations (England, Wales, Northern Ireland and the Republic of Ireland) and Building Standards Technical Handbook 2017 for Scotland for airborne and impact transmission.



This systems performance can be further increased to achieve additional reductions in sound and vibration transmission, please ask a member of staff about these options if you require additional system performance.


MuteClip® Double is available for specification on a wide range of projects that include large scale residential builds, commercial properties for increased privacy and perfect for soundproofing the home. This system is also suitable for retrofit scenarios for those looking to improve existing properties.

Projects where you are specifying the use of an acoustic system our team can help you from start to finish and with the use of our MuteClip® Double. We can provide Acoustic Modelling Data for estimating results, CAD drawings of the MuteClip® and Channel to aid visualisations, and fantastic rates, so you feel you're making the right choice. We also provide Acoustic Testing for existing structures as well as Part E Building Regulation testing and additional acoustic testing options for projects that include Gyms and Nightclubs or even homes that require or seek increased acoustic performance for improved living quality.


MuteClip® Double contains components from our MuteRange core - these are products that have been subjected to stringent testing in both laboratory and real-world environments providing the best possible solution for the purpose with a result you can trust.


You can find out more about our all-encompassing MuteRange by clicking on the icons below or get in contact with iKoustic today.



MuteClip® System vs Resilient Channels

We have provided a detailed blog on the use of our MuteClip® System against the 'Additional Costs of Resilient Channel.' 

"To make you aware of the potential issues and additional costs Resilient Channel can leave within the project, we have provided some brief points to review before proceeding with this method."


A Guide to Soundproofing a Ceiling

If you are uncertain of what to look for when soundproofing a ceiling, you can read our handy guide - A Guide to Soundproofing a Ceiling by clicking on the icon below. You can also pick up the phone and say hello to find out how we can help you on - 01937 588 226!



Are you prepared?

  • Conduct prior sound testing or home testing to draw attention to any potential flanking paths (where sound takes an alternative route), and this will be an essential part of making sure you have the best soundproofing in place and managing what is possible to achieve, our team can help guide you on this.
  • You will need to make sure you are fixing directly into the brick/block work and not fixing over existing plasterboard (this may require levelling before installation)
  • To lay Acoustic Mineral Wool between flooring and ceiling joists to help reduce flanking transmission

How to install

Installation is based on a 400mm - 800mm diamond spacing. MuteClip® Channels would also installed with a 400mm spacing with one located 100mm from top and bottom. Please see installation guides for more information.

  • MuteClip® fixed to the bottom of the joist
  • 200mm overlap on MuteClip® Channel with four self-tapping screws into the shoulders of the MuteClip® Channels, running perpendicular.
  • Rockwool RW3 or Knauf RS60 between joists
  • The first layer of Acoustic Plasterboard fixed on to MuteClip® Channel with self-tapping screws (leaving a 2-5mm gap from any adjacent surfaces and using acoustic sealant)
  • A layer of Tecsound adhered with self-adhesive backing to Acoustic Plasterboard
  • The second layer of Acoustic Plasterboard fixed on to MuteClip® Channel with self-tapping screws (leaving a 2-5mm gap from any adjacent surfaces and using 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 soundproofing materials and ancillaries required, fixings and skim plaster not included.

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*

  • Television, light music levels
  • Muffled Conversation
  • Minor impact noise issues and vibration


Typical Performance Results*

L’nT,wDnT,w (C;Ctr)
53dB61 (-1;-7) dB


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 and impact 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.
  • It is also compliant with the required acoustic values for airborne and impact transmission featured in the Building Standards Technical Handbook 2017 for Scotland, and we would advise conducting a Sound Test to survey any planned conversions in existing properties before concluding on an Acoustic System. Scottish Building Regulations contain higher targets than that of Part E, and 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.

Our MuteClip® Double is our most popular option for when soundproofing is required at home, or in the workplace for it has all the acoustic qualities that make for a highly effective system. MuteClip® and Channel offer a great deal of suspension and decoupling from the structure which offers high performance against raised noise levels by tackling low-end frequency and structural borne vibration such as impact noises from footsteps. The mass provided is a triple ply consisting of Acoustic Plasterboard and visco-elastic membrane - Tecsound, which is to reduce airborne noise transmission on the ceiling partition. The performance will always differ from structure to structure and will vary room to room in a single building for there are construction details and build qualities that lend heavy to how a specific room will perform acoustically. Flanking Transmission should always be addressed in equal measure to the walls if it is found in those areas, but as a general guide for the reduction of sound, we expect to yield a 10-15db decrease for airborne and 10-20dB for impact transmission, so a 50-67% or a 50-75% reduction respectively.

As both common noise issues to the home and workplace, MuteClip® Double would assist in reducing these to a near background noise level (depending on the intensity of the sound). You should bear in mind that hearing and noise levels are subjective, and some may find that even though you have turned off all your appliances and sit in a near on silent room that you can still hear it. The aim is to reduce it down to background noise levels as a goal, but these sensitivities can often be at play, especially if you have been subject to them for an extended period. When investigating soundproofing for your space, check for Flanking Transmission down walls, especially where dot and dab or stud frame walls are concerned.

When flanking paths have been adequately assessed and soundproofed if noise is found to be travelling down them - the MuteClip® Double offers acoustic values that surpass Part E Building Regulations and has done on multiple occasions in this build up - both for conversion projects and new build structures. We can offer partition estimations for new builds with suggested floor and ceiling makeups, but it is always wise to look at installing an acoustic underlay above for the treatment of impact noise at the source or look to break contact with the floor the wall connection due to flanking transmission for impact found in these areas.

MuteClip® and it’s Channel is designed for a single fixing per clip and the Channel is clipped into these, this is so that it is easy to install with no incorrect methods of fixing, suitable for DIY enthusiasts to architects and specifiers working on a broad range of projects. The issue with Resilient Channels is that it takes only a small error to render its acoustic performance as useless, and with a failure of acoustic test or uncertainty of why there are issues with soundproofing - the system must be taken down and restarted, costly across time and to the final budget. The MuteClip® and Channel also offer a raised level of reduction in the lower frequencies, essential for the attenuation of low-end sound energy and structural borne vibration.

When rigid surfaces are in direct contact with one another, they can pass through vibrations with ease, so if the Acoustic Plasterboard layers are abutted tightly to the adjacent walls, any flanking sound found in these areas will move into the plasterboard and short circuit the MuteClip® and Channel’s isolation. Tightly abutting will also lead to reducing the ceiling’s suspension that again, both MuteClip® and Channel give - which is essential for the reduction of low-end sound energy and structural borne vibration.

Depending on the span of your room will often determine the thickness of joist that you have, the standard joist size for the majority of residential buildings is 2x8 inches or 50.8 x 203.2, so with this example, we would recommend the use of two slabs of 100mm thick Acoustic Mineral Wool to double up as 200mm. Do not look to use any more here for compression made between the MuteClip® Channel, or Acoustic Plasterboard and the underside of the floor above will short circuit the system. With thicker joist sizes, look to make sure there is 10mm air gap at least either side, more significant air gaps are okay, but sound insulation material is required to stop the cavity from creating resonances and lending to ease of flanking sound.

All decorative features such as coving and cornicing will require removal either prior or during the installation, and any existing plasterboard will need removing too. Lath and plaster ceilings will often require removing to make sure that there is a secure fit, but often these are installed over the top of due to the process of removal - which is the better option of the two begins it means we can treat the cavity beyond it. If you are looking for an acoustic installation team we can provide all the above for you - we would need to factor this into the overall costs during our quotation. Electronics such as motion sensors, light fixtures and alarms will all need extending by an electrician prior and made safe for any installation team to pull through the required insertion holes made in the system.

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