Reverberation time is the time required for the sound to “fade away” or decay in a closed space. Sound in a room will repeatedly bounce off surfaces such as the floor, walls, ceiling, windows etc. When these reflections mix, a phenomenon known as reverberation is created. The reverberation time (RT60) of a room or space is defined as the time it takes for sound to decay by 60dB.

Sound Insulation (commonly referred to as ‘soundproofing’) refers to the overall ability of a building element or building structure to reduce the sound transmission through it. It is measured over a range of frequencies.