Wall Solution 2
Resilient Bars
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here if you wish to calculate or buy the materials you need for this solution.
As with all sound insulation projects it is very important to try and introduce
a resilience (a springy) layer. In this solution resilient bars are the method
of decoupling the wall that you are constructing from the transmission wall
i.e. the problem wall. Resilient bars are used in conjunction with acoustic
mineral wool slabs and battens. The resilient bars should be attached at 400-600mm
centres starting 50mm from the floor. Fitting
Instructions
Resilient bars can serve to upgrade an existing stud wall or may be used on brick party walls. In terms of the ideal combination we would suggest the following construction. It should be born in mind that different combinations of materials can be used according to space and budget constraints.
A note on fireplaces: We are frequently asked whether it is necessary to run soundproofing around the chimney breast on a party wall? While there is no definitive answer on this question, we are of the opinion that soundproofing the alcoves either side is usually sufficient. This is because chimneys are typically constructed to be fire and smoke proof and are at least of double brick construction, whereas the walls either side, the alcoves, maybe poorly constructed and of single brick. Of course there are exceptions, but in the majority of cases you can reduce your labour and time considerably by just doing the alcoves.
The results achieved by this construction type are excellent. As with soundstop
panels acoustic insulation incorporated into floor or ceiling voids maybe necessary.
The simplest method of adding acoustic insulation here is to add AMW 60 kg slabs
of 100mm completely filling the void beneath floor or ceiling just adjacent
to the wall.
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