There are two main types of Sound Insulation Test:

• Airborne Test (to BS EN ISO 140-4)
This type of test measures the resistance to the passage of airborne sound through separating walls or floors. This is carried out by the test engineer using a high power multidirectional loudspeaker which creates steady levels of noise which are measured at differing locations in both the source and receiving rooms. Such tests can take place vertically (through party floor) or horizontally (through party wall).

• Impact Test (to BS EN ISO 140-7)
A tapping machine, which generates impact sound, is used to measure the passage of sound through the floor insulation to the room directly below. With an Impact Test, it is important that it is conducted directly onto the bare floor and before the fitting of any carpets or other floor covering.

The Sound Insulation Test is carried out according to a strict code of conduct and whilst our Sound Test engineer will be happy to outline the process to you – he must be left alone whilst conducting the formal test itself.