Designing for Sound Testing in London


Initial Design Review
The initial stage of our acoustic design services is to review the design details to check that the construction details proposed are capable of passing the sound testing in London in-line with Part E of Building Regulations. This usually takes place straight after planning has been approved, so the increased cost savings can be realised at the earliest stage.

We can then evaluate the construction methods and materials specified to ensure that they are capable of meeting the acoustic requirements of Approved document E. The typical areas we check are:

a. The walls and floors design are acoustically robust, to comply with Building Regulations Part E.
b. There are no flanking points, where isolated partitions are wrongly mechanically fixed together to caused noise bridging.
c. The acoustic treatments for Soil Pipes, Stair Cases Steel Beams etc. to ensure they are acoustically fit for purpose, as these are some of the many areas that get missed.
d. The Lighting specification to, ensure they are acoustically complaint to the overall design i.e. down lighter design etc.
e. Acoustic floor treatments are compatible with the proposed floor finishes i.e. Carpets, Laminates, Floor Tiles and under floor heating systems.

Site Visits in London
During early design and construction process, we can visit site throughout London to conduct a comprehensive acoustic design survey and review, we also take this opportunity to meet; where possible, the site/project manager, architects etc. as they often raise concerns about certain aspects of the build which can be very beneficial in locating potential problem area.

We assess the most cost effective method of converting the property to ensure it passes the London sound test. Our proactive acoustic design service, takes into account the build-ability, programme time and material cost. We ensure the relevant parties are fully aware of the installation detail required, highlighting possible ‘onsite’ construction problems and their prevention to achieve a successful installation and building sign off.

Ongoing Site Support throughout London
Once APT Sound Testing has completed the acoustic design report our services don’t finish there. We provide the site team with on-going design support. You will have direct contact with the allocated acoustician from the start of the acoustic design process through to the successful completion of the project.

Once the part of the building is completed we can undertake sample sound testing to ensure the design and onsite construction methods are sufficient to achieve Part E sound testing In London compliance.

Defect Diagnosis & Remedial Advice
Occasionally we get involved in project’s that has failed Part E Sound Testing in London, even though we weren’t involved in the acoustic design of the project. Often it is due to the inclusion of inadequate materials or the exclusion of the necessary materials.

With over 20 years’ experience in building acoustics, we are able to diagnose the reasons for the sound test failure and recommend a cost-effective solution. Often, the reasons for the partition failure are obvious to the test engineer, in which case the amount of advice will be minimal and subsequently the costs will be lower. Sometimes, there are more technical issues which require detailed diagnosis and invasive investigation and sample sound testing, such as a serious design fault, e.g. the use of lightweight blocks throughout the inner envelope wall on a block of flats.

Whatever the problem APT Sound Testing can usually find an acoustic solution that will provide a sufficient acoustic design to satisfy Part E of Building Regulations. If you have a sound test failure then get in touch with us as soon as possible as we should be able to offer you an expedient solution, to help you to achieve practical completion, minimising potential delays.

Sample Sound Testing In London
If the building is being subdivided into new apartments then the walls between apartments will need to be sound tested in-line with Part E for Converted Dwellings. In this instance we can undertake sample sound testing in London, on walls and floors to check the existing sound insulation performance.  We have considerable experience in all matters related to architectural acoustic design and detailing. We can help develop the initial acoustic design from the initial design scheme stage right through to the pre-completion sound testing. Our approach is robust and does not leave any room for errors using our In-depth knowledge of acoustic materials, construction systems and Regulations we can provide the following:

a. Sample sound testing to identify the acoustic performance of the existing building to allow for targeted acoustic upgrades.
b. Acoustic testing of existing wall façades to ISO 140-5, to check the existing sound levels so new targeted wall upgrades can be specified.
c. Provision of cost-effective and practical acoustic solutions
d. Thorough understanding of the desired character of the space
e. Specification of External Building Fabric and including walls, doors and windows in order to minimise noise break-in, or break-out for privacy and overall acoustic quality

Required Sound Levels To Pass Part E.
Basically, for new build properties you need to achieve 45dB or higher for airborne wall and floor sound tests and 62dB for Impact sound tests. For Converted properties the levels are slightly easier to achieve with 43dB for airborne wall and floor sound testing and 64dB for impact sound testing in London.

Do I Need To Carry Out Sound Testing in London?
Building Regulations Part E require that builders demonstrate the sound insulation performance of separating walls/floors in new-build dwellings and/or converted dwellings or rooms for residential purposes (as well as those newly formed by a material change of use).

This applies when separate dwellings are attached via a common partition not exclusively used by the same occupants. The only way to satisfy the relevant compliance with building regulations is to undertake sound testing in London.

The regulations set minimum performance requirements for sound insulation between spaces, as to provide reasonable conditions for living. Performance can be demonstrated either by sound testing a sample of as-built constructions/properties.

Pre-completion sound insulation testing may also be required in non-residential buildings such as schools, hospitals, workplaces, where the as built acoustic performance needs to be demonstrated to ensure noise sensitive areas (e.g. classrooms, wards, meeting rooms) are suitably insulated from noisier areas or to comply with BB93 & BREEAM requirements.

If you would like more information in regards to our acoustic design services and sound testing services in London, please contact us on 01525 303905 or visit our website at: