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Sound insulation

What's going on next door?

Total sound insulation is the ability of a room (partitions, ceiling, floor and all connections) to prevent sound from travelling through the air and through building elements.

The total sound insulation of adjacent spaces is expressed by DnT,w, R’w or DnT,A values. The higher the value (in dB), the better the performance. Mass, air-tightness and absorbing ability are the primary properties that determine the ability of a material to insulate against sound. Some regulators require a minimum of 35-45 dB between offices.

TOTAL SOUND
INSULATION
EXPERIENCE BY THE USERRECOMMENDED ROCKFON SOLUTIONS
30 dB (A)A conversation in the adjacent room can be clearly heard and understoodSonar/Tropic dB 35-dB 40
35 dB (A)A conversation in the adjacent room can be heard but not understoodSonar/Tropic dB 42
40 dB (A)A conversation in the adjacent room is experienced vaguelySonar/Tropic dB 44
50 dB (A)The sound in the adjacent room cannot be heardSonar/Tropic dB 44 + Sound barrier/light cap/absorbing material

Impact sound insulation between floors is the ability of a construction to insulate from impact noises such as footsteps. It is characterised by the impact sound pressure level L’nT,w in dB. The lower the value, the better the impact sound insulation. Regulators usually allow a maximum L’nT,w of 60 dB in classrooms and offices.

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