What levels do I need to achieve to pass my Sound Test?

To comply with Approved Document E you will need to achieve the following sound insulation results:

For Separating Floors & Walls (New Build only)

  • Separating Floor Between Flats Airborne Noise Reduction = 45dB Dn T,w + (Ctr) or greater
  • Separating Floor Between Flats Impact Noise Reduction = 62dB Ln T,w or less
  • Airborne Wall Tests to achieve 45dB Dn T,w + (Ctr) or more

For Separating Floors & Walls (Conversions only)

  • Separating Floor Between Flats Airborne Noise Reduction = 43dB Dn T,w + (Ctr) or greater
  • Separating Floor Between Flats Impact Noise Reduction = 64dB Ln T,w or less
  • Airborne Wall Tests to achieve 43dB Dn T,w + (Ctr) or more