How are plots selected for sound testing?
APT usually specifies the amount of sound insulation tests that are required. Firstly we look through the floor plans to work out a testing schedule taking into account the positioning of habitable rooms, the room and partitions sizes. We always tests through ‘habitable rooms’ partitions i.e. lounges & bedrooms wherever possible – as per the details shown below). We will also try and undertake testing across walls and floors in different areas of the building and through different partition types i.e. if one wall is made of masonry and the other met-sec partitioning. Once we have specified the sound testing schedule, the client should show building control to seek their approval before the commencement of the sound testing.
Detail B – Sound Testing through Floors
What are the minimum requirements for separating party walls and floors?
The minimum requirements of ADE can depend on a variety of factors such as if the development is new build or refurbished, whether the development is intended to be a permanent dwelling, or classified as “rooms of residential purposes” (e.g. hotels, student accommodation, etc). A brief summary of the minimum requirements can be found below:
DWELLING HOUSES AND FLATS | Airborne standard
DnTw,w+Ctr dB |
Impact Standard
L’nT,w dB |
|
Purpose built dwellings |
Walls | at least 45 | N/A |
Floors and Stairs | at least 45 | up to 62 | |
Dwelling formed by material change of use |
Walls | at least 43 | N/A |
Floors and Stairs | at least 43 | up to 64 |
ROOMS FOR RESIDENTAIL PPOSES | Airborne standard
DnTw,w+Ctr dB |
Airborne standard
L’nT,w dB |
|
Purpose-built rooms |
Walls | at least 43 | N/A |
Floors and Stairs | at least 45 | up to 62 | |
Rooms formed by material change of use |
Walls | at least 43 | N/A |
Floor and Stairs | at least 43 | up to 64 |
How APT Sound Testing can help
It can be very time-consuming trying to identify the cause of a failed sound test. Therefore, it is always best to hire an experienced consultant. APTs acoustic consultants have years of experience and will advise you on the best course of action to rectify any problems. We are also a UKAS accredited company, so you can be sure of a friendly and professional service providing a ‘one stop’ solution for all your acoustic requirements.
APT can advise on all types of acoustic design to help you pass your sound testing to party walls in flats, whether it is accomplished during initial construction or during a refurbishment or renovation project. Whatever the problem we can usually find an acoustic solution that will help you achieve Building Regulation compliance.
If you would like more information in regards to sound testing service and/or acoustic design services in Hertfordshire, please contact us on 01525 303905 or info@aptsoundtesting.co.uk, for more information please visit our website at www.aptsoundtesting.co.uk or download our sound test checklist.