Carpet Cushion Can Significantly Improve A Carpet's Acoustical Properties

A carpeted environment is quiet because the pile surface absorbs surface noise at the source. But a carpet installed with separate cushion can make the room even more quiet.

Tests conducted in the Kodaras Acoustical Laboratories reverberation chambers substantiate this. For example, in floor sound absorption tests, a carpet laid directly on concrete floor, with no cushion, measured a Noise Reduction Coefficient of 0.25. In a like test, the same carpet with a cushion on a concrete floor measured a Noise Reduction Coefficient of 0.65, a considerably better performance.

Separate cushion can also reduce impact noise transmission. On a concrete floor with no cushion, a carpet registered an impact noise rating of +14. The same carpet with separate cushion had an impact noise rating of +25—again significant improvement.