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An Independent Stud wall


Cross-section of a soundproofed independent stud wall

For those looking to reduce sound penetration to the maximum an independent stud wall is the best choice. For maximum performance the Genie clip stud wall is the premium choice however a good result can also be achieved with resilient bars.

The independent will achieve great performance across the whole range of frequencies as it will cope with bass solutions very well. The wall must be independent of existing wall such there is a physical air gap. It is the thickness of the solution which is integral to the performance of the solution.



Sound proofing basics

To achieve best results when soundproofing a wall, three areas need to be addressed. 

  1. The mass of the wall:- Light weight walls do not soundproof as well as heavier walls. All the solutions we offer aim to increase the mass of the wall. This is generally achieved by adding acoustic plasterboard.
  2. The Resilience and acoustic separation of the wall- When designing the ideal acoustic wall you would look, to try if space permits, to create a new wall in front of the existing wall. The bigger the gap the better the result particularly for bass frequency sounds. In action this wall should have in built springiness which will mean it performance over and beyond a normal stud wall. This springiness can be achieved with Genie clips or resilient bars. The performance of the mass on that wall is enhanced by around about 40% when spring mounted.of the wall.
  3. The sound "absorbancy" of the wall. By adding different components the sound gets trapped more easily within the wall- The most cost effective method is the use of acoustic mineral wool.
However where noise is extreme from next door we have to add further elements

  1. Width of soundproofing-the wider your soundproofing barrier the better it performs. Hence 100mm wall are better than 50mm 
  2. Separation - The wider the soundproofing solution the more effective. However a physically separate wall ( even if separated by just 10mm from the original wall provides a significant uplift in performance. 
  3. Acoustic Barrier- For the absolute maximum protection an acoustic membrane can be incorporated into the mix.


Understanding Performance

We summarise our solutions in a performance table shown below.

You will notice two figures quoted. The total performance which is normally quoted on most sites refers to the performance of an average wall with soundproofing materials added, and also the improvement or performance up lift over the existing wall. Be very aware of sites that claim that the product they sell will improve performance by 40 dB we know that this is not physically possible and that the figure quoted refers to a total performance figure including the existing wall being soundproofed.

When trying to understand the performance of an acoustic treatment look at the Db performance up lift. In broad terms every 10dB of performance uplift corresponds to roughly a 50% improvement in the performance of the wall. So 20dB would indicate a 75% Improvement over and above the original wall.



 

Key Points:

  1. Genie Clips outperform resilient bars by ~7dB
  2. Highest performance independent stud wall
  3. Genie Clip technology in a home soundproofing package
  4. Wall soundproofing at a level significantly above regulation requirements
  5. Online calculator will work out your exact requirements

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Independent Stud Wall Sound Insulation performance table

Wall Depth Gain Total system Performance airborne Typical Airborne Improvement
50mm stud. 107mm 59dB 22dB
50mm stud. Tecsound 50 Upgrade 109mm 62dB 26dB
75mm stud. 132mm 61db 26dB
100mm stud. 157mm 63db 28dB
75mm stud. Tecsound 50 Upgrade 134mm 64dB 30dB
100mm stud. Tecsound 50 Upgrade 159mm 66dB 32dB
50mm x 2.7m metal studs Tecsound 50 Upgrade 107mm 62dB 26dB
50mm x 2.7m metal studs 109mm 59dB 22dB
50mm x 2.4m metal studs 107mm 59dB 22dB
50mm x 2.4m metal studs Tecsound 50 Upgrade 109mm 62dB 26db



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