There are many misconceptions when it comes to acoustics. Unfortunately; by simply constructing a good separating wall or floor this may not in itself provide sufficient sound insulation to pass the sound testing for Part E, as the junctions of each separating wall and/or floor with other parts of the building are equally as important. There may be other potential issues such as flanking sound transmission that can occur via construction components such as:

  1. the internal partitions
  2. the inner leaf of the external wall
  3. the external wall cavities
  4. the external façade or outer leaf
  5. the roof structure
  6. the foundations.

When undertaking the overall design and construction, the overall acoustic system should be considered and not just the separating wall or floor partitions.  Flanking sound transmission may in some cases be the dominant pathway between adjoining dwellings, especially in existing buildings where you are planning to convert offices/large houses into flats where there are large existing penetrations through the floors. In all instances it is essential that acoustic isolation is provided, between all acoustic partitions – both wall and floor.

Acoustic Design Advice

APT Sound Testing can advise on all types of acoustic design, whether it’s accomplished during initial construction or during a refurbishment/renovation project.  We have the technical experience to help identify and rectify your soundproofing or noise control problem.  We can undertake acoustic design reviews of floor and wall partitions too ensure that the sound insulation testing passes at the first attempt. We can also undertake facade testing to ISO 140-5, to ensure the design of your building envelope is acoustically robust, as this can also add to sound testing failures even if the internal partitions are acoustically robust.

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