Under Building Regulations (Approved Document E in England), new homes that share a wall or floor with another home, such as semi-detached and terraced houses and flats, normally need a sound test before the work can be signed off. The test checks that the separating walls and floors give enough sound reduction, and Building Control will usually want the test certificate before completion.
There are two types of sound tests involved during this check, called impact and airborne noise tests. Impact refers to footsteps and traffic on the floors. Airborne tests consist of talking, television and music. Noise is measured with sound equipment on the other side of the wall. Doors and windows need to be sealed shut, openings for ventilation need to be closed and preferably rooms should be empty and accessible during the tests. The mains also needs to have 230V mains power available for testing and any outdoor noises need to be down low so the results aren’t influenced. This includes no working on the project during this time.
It is best to get these tests done as soon as possible, as it will be expensive to change insulation levels if it’s left too late. Bathroom and kitchen units shouldn’t be added until after the tests with the risk of them being removed. However, testing too early can also be a problem. Certain aspects of the home needs to be finished before it can begin. If the sound test is to pass, then completion of the windows, walls, ventilation, electrical sockets, skirting board and plastering should be done. If in doubt, it is best to talk to a professional so you know exactly what needs to be done when and where. For help with insulated concrete formwork, including fire and sound testing in the West of England, contact us today.
