Simple Design Solutions to Pass Part E Sound Testing

Simple Design Solutions to Pass Part E Sound Testing

There are many simple solutions to reduce the noise levels and achieve compliance with Part E sound testing. We can provide easy to follow acoustic design reviews, utilising our extensive knowledge of different materials and construction methods.

Our clients often convert large houses into multiple flats, i.e. a flat on each of the ground, 1st and 2nd floors. They usually leave the floor boards in place and install a layer of plasterboard to the underside of the existing plasterboard/lathe and plaster. Unfortunately this simple type of upgrade usually achieves 30dB for airborne sound, which will result in sound testing failure. The sound test result needs to be 43db and above for airborne noise and 70dB for Impact sound.

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One simple solution to overcome the above problem would be to add another ceiling element to the overall construction. This can be achieved by incorporating resilient metal bars which are connected to the underside of the joists and mounted perpendicular (90˚) to the joist direction. If plasterboard has already been tacked to the underside of the joists you can firstly add timber batten and then add the resilient bars, also mounted perpendicular (90˚ to the batten, thereafter 2 x 12.5mm layers of soundboard can be tacked to the underside of the resilient bar and an acoustic insulation added to the newly formed void. In between the joist void add 100mm acoustic insulation. Above the floor boards add an acoustic resilient membrane to lower the chance of impact noise transmitting down to dwelling below.

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The aforementioned acoustic design solution will usually result in successful sound testing and compliance with Approved Document Part E.

If you require more information in regards to sound testing and/or acoustic design on your project please visit our site at www.aptsoundtesting.co.uk or contact us at info@aptsoundtesting.co.uk, or call me direct on 07775623464.

Poor Acoustic Design

Poor Acoustic Design 

Sound test failure is often down to poor acoustic design detailing during the design and construction phase of a project.

Sound test failure are often associated with poor acoustic design which allows noise flanking transmission through dividing floor and wall partitions. Unwanted noise travelling along flanking paths can make the building structure vibrate which causes the sound to radiate into your room. One simple cost effective solution is to build another wall or ceiling in front of the original, to offer extra isolation. For this upgrade to work you need to make sure that the independent wall or ceiling is not directly connected to the existing failed partition; so it provides isolation between materials.

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One of the main reasons for excessive noise flanking down to the use of lightweight blocks in the construction of the wall construction. Due to the lightweight mas of the inner wall it allows sound to transmit from dwelling to another, both vertically and horizontally. If a building has failed its sound testing, it is essential to establish if the problem is due to direct transmission, flanking transmission or a combination of both so that the most cost and time effective remedial treatment can be designed and applied to the failed partitions.

One way to reduce the chance of sound testing failures due to excessive noise flanking transmission is through a careful consideration to the acoustic design at the start of the project.  Unfortunately, by simply specifying high performance wall and floor partitions, it is no guarantee to adequate sound isolation and successful sound testing.

APT offer preconstruction design advice to help you achieve successful sound testing in London in-line with Building Regulations Part E. We also offer onsite inspection services to ensure that the sound insulation elements are being installed as per manufactures guild-lines, as its not use having a robust design if it not being installed properly on site.

If you require more information in regards to sound testing and/or acoustic design on your project please visit our site at www.aptsoundtesting.co.uk or contact us at info@aptsoundtesting.co.uk, or call me direct on 07775623464.

The two types of sound insulation testing through floors.

There are two distinct types of sound insulation testing through floors, they are:

  1. Airborne Noise (for example speech and music)
  2. Impact Noise (for example footsteps directly on the floor above)

In the event of  both types of sound – Airborne & Impact) are emitting excessive noise through the ceiling/floor, then there are some easy installations that should reduce the sound levels and improve your sound test results.

sound testing equipment

We also offer an acoustic design service which helps clients to pass the sound testing upon completion of the acoustic upgrade. By advising on a simple cost effective wall and/or floor upgrade, we are able to forward simple to follow acoustic design reviews, utilising our extensive knowledge of different materials and construction methods. Where our acoustic upgrades have been incorporated into the site construction, all the pre-completion sound tests have passed, ensuring compliance with Part E of Building Regulations.

Pre-completion sound testing has been a mandatory requirement since 2003 and all new build properties and conversions which were built after this date require 10% of each party wall/floor construction type to be tested. In is usual to test between living rooms and bedrooms as these are classed as the two main habitable rooms; however, other rooms can be used if this is not possible such as study’s, kitchens and dining rooms.

We also carry out a large amount of sound tests in council/housing association blocks, where the residents are experiencing excess noise between the dividing wall and floor partitions.

We provide full UKAS accredited air and sound testing in London, using the latest Class 1 equipment, so our clients can be sure that all testing is completed to a strict ISO quality controlled standard

If you would like advice on your acoustic design or sound testing in London, please contact us now at info@aptsoundtesting.co.uk or call us on 07775623464.

Failed Sound Testing in London?

Failed Sound Testing in London?

When a building fails the Part E Sound Test in London it may be down to a problem with the acoustic construction, this may be down to issues such as noise flanking etc.

Ongoing problems with airborne and structure borne sound are often associated with direct noise flanking transmission through floors and supporting walls and other associated structures such as the external envelope. One common cause of noise flanking and failed sound testing is often associated with the inclusion of lightweight blocks within the construction of the building envelope and/or blocked cavities. It all cases it is essential to establish if your problem is due to direct transmission, flanking transmission or a combination of both so that the most cost effective remedial treatment can be chosen.

Sound Testing in London

Unwanted noise travelling along flanking paths will make the building structure vibrate which causes the sound to radiate into your room. One simple cost effective solution is to build another wall or ceiling in front of the original, but not connected to it (often called an independent wall or ceiling) so it provides isolation between materials.

One way to reduce the chance of flanking transmission is through careful consideration to the design at the start of the project.  Unfortunately, by simply specifying high performance wall and floor partitions it is no guarantee to adequate sound isolation and successful sound insulation testing. APT Sound Testing offer both preconstruction and post construction design solutions to achieve a successful sound testing in-line with Part E of Building Regulations. We also offer onsite inspection services to ensure that the sound insulation elements are being installed as per manufactures guild-lines. Even if both types of sound are emitting through the ceiling/floor then there are some easy installations that should reduce the sound levels and improve your sound test results. By advising on a simple cost effective wall and/or floor upgrade, we are able to forward simple to follow acoustic design reviews, utilising our extensive knowledge of different materials and construction methods

If you have failed a sound test and need acoustic advice on how to overcome the problem then please contact us at info@aptsoundtesting.co.uk or call me direct on 07775623464.

BS8233 Noise Surveys in London

BS8233 Noise Surveys in London

APT Sound Testing have undertaken undertake many BS8233 Noise Surveys in London to comply with local planning conditions.  We are a professional noise and acoustic consultancy firm operating throughout Greater London and the Home Counties.

Our fully qualified and highly experienced engineers provide expert advice and conduct survey analysis into all aspects of sound, such as complying with local planning conditions NEC’s and investigating complaints into excessive noise such as excess plant noise etc.

We have undertaken many BS8233 noise surveys in London  on numerous potential housing and other noise-sensitive sites throughout the Capital and the UK. Our acoustic surveys cater for sites that may be exposed to noise from road, rail or or from noisy industrial activities.

sound testing

We undertake wide range of services from planning noise assessments through to noise mitigation proposals. Where it is proposed to install new plant or equipment, we undertake noise surveys to determine noise emission limits, in line with Local Authority requirements, and provide advice on mitigation. As a London based company we have an in depth knowledge on complying with London planning permissions and local legislation. Our engineers are expertly suited to carry out noise assessments, with a wealth of experience in assessing the sound impact of residential, industrial and commercial businesses in the community.

Noise assessments and reports should be submitted during the pre-application process and discussions on planning applications. In many circumstances a planning condition will stipulate that a noise survey will need to be undertaken.

Planning noise surveys are normally carried out at the design stage of the project prior to the commencement of construction, this is to allow the acoustic design of the building to take into account the local noise levels. If the local noise levels are excessive then a more robust acoustic twill need to be adopted to mitigate any potential noise problems. Thereafter the local authority may also require post a BS 8182 London noise survey to prove that the noise standards have been achieved within the living rooms and bedrooms.

if you would like more information in regards to our BS8233 Planning Noise Surveys, please don’t hesitate to contact us now at: info@aptsoundtesting.co.uk, or call me direct on 07775623464.

SOUND INSULATION TESTING in LONDON

Sound Insulation Testing in London

APT Sound Testing have a massive amount of experience when it comes to undertaking  sound insulation testing in London. We have the necessary know how and onsite experience to carry out sound insulation testing on a new build or conversion project throughout London for a most competitive prices.

Our engineers carry out the airborne and impact sound test measurements in compliance with Part E of Building Regulations. We have previously undertaken hundreds of sound tests to new build and conversion projects. we also undertake detailed design reviews to ensure our clients achieve a successful sound test.

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Our engineers also understand the extra coordination that’s required to test within central London, whether its restricted access and/or parking we have it covered. Many other companies that are based outside London literally double their fees when undertaking sound testing in the capital; as we have an office in London we can afford to charge the same flat fee as we do across the rest of the UK.  Also as we are based in London we can usually arrive on site at the agreed time which often minimises delays to planned noisy works on site. We aim to arrive early and leave early.

We undertake London sound testing on all types of projects from simple flat conversions to large new apartment block developments containing many hundreds of flats. We also undertake sound testing where a lease holder dispute has arisen, which is quite common in London. We can undertake sample sound testing to highlight the existing sound insulation performance of the dividing wall and/or floor partitions to allow for targeted acoustic design to keep cost and delays to a minimum.

If you would like more information on our London Sound Insulation Testing package please contact us now at info@aptsoundtesting.co.uk or call me directly on 07775623464.