All our testing and reportage are undertaken in strict accordance with Annexe B of Approved Document E of the Building Regulations and BS EN ISO 140-4:1998 “Field measurements of airborne sound insulation between rooms” and BS EN ISO 140-7:1998 “Field measurements of impact sound insulation of floors.”
After the sound insulation test a sound test report or certificate should be provided in compliance with Building Regulations Part E. This normally provides the following information:
The company name and/or testers name and address that carried out the test and the accreditation held by the membership organisation.
The client/applicant name.
If it was a wall or floor test.
List of equipment used (including details on calibrated equipment) and testing technique.
Confirmation that the test was in accordance with BS EN ISO 140 Part 4 (airborne) and Part 7 (impact).
The results should be calculated in accordance with BS EN ISO 717-1 and 717-2 1997. Detailed test results giving a declaration of a pass or fail.
Date of test. The test results or certificates will be submitted to the verifier during the completion certificate process.
The test duration depends on the amount of sound insulation tests required on the project. Taking into account standard site conditions a set of two airborne wall tests (for a pair of houses) will take one to two hours. A six pack of tests on flats, consisting of two airborne walls, two airborne floor and two impact tests will take between two to three hours. Throughout the sound testing we will require full free uninterrupted access to the units/rooms in all test areas.
We offer an acoustic design service to review the construction detailing. We also offer a sample testing service along with site inspections which provides a ‘one stop acoustic solution’. We visit site during the build process to check for any workmanship issues that may cause problems during the final pre-completion sound testing.
If you would like APT Sound Testing to review your sites acoustic construction, then please speak to us about our acoustic design service, alternatively if you just require sound insulation testing please contact us at: firstname.lastname@example.org
To try and help our clients achieve compliance with Approved Document E, we offer the following 4 step acoustic design advice package:
Site Survey Visits – to let us view the existing site construction. This allows us to check for potential problematic construction such as inclusion of lightweight blocks in the existing construction. It also lets us check that the installation teams are installing the acoustic materials as per manufacturer’s guidelines.
Sample Sound Testing – of the existing construction. This offers an accurate overview of the acoustic performance of the existing partitions which enables us to offer a targeted acoustic design using the sound insulation performance of the existing construction.
Acoustic Design Review – a full design review of the proposed developments party walls and floors.
Pre-completion Sound Testing to satisfy Approved Document.
There are many factors to consider when considering good acoustic design, and they are usually split up into five key factors. If used together or in various combinations they will improve sound insulation properties over a wide range of frequencies. The main factors are:
Also, noise flanking 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. Here are just a few of the potential noise flanking areas:
Windows built very close to Internal partitions
Inner leaf of the external wall
External wall cavities
External façade or outer leaf
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 also undertake UKAS accredited sound insulation testing providing a ‘one stop’ solution for all your acoustic requirements.
We are often asked what types of sound test and noise surveys we can undertake. We offer all types of Sound Testing and noise surveys as well as design consultancy. Here is a quick summary of our acoustic services: