Can I place additional impact sound absorption under cork parquet or “glueless” floating cork parquet?
That is not possible for cork parquet because the sound-absorbing material has a lower density then the cork parquet. But under “glueless” floating cork parquet, you can install a sound absorption underlay up to 2 mm (1/13 in) thick. But that is not necessary because Cortex “glueless” floating cork parquet always incorporates impact-sound absorption. The additional impact-sound absorption would not be great enough to justify the cost and effort. In any case, it must be ensured that the maximum height is not exceeded.
