Sound Insulation of Wood Flooring – Giving Your Home a Reason to Be Quiet

Living in a city, noise nuisances are everywhere: footsteps from upstairs, children shouting, furniture moving… Wood flooring has inherent sound insulating properties, but performance varies greatly with construction and material. Understanding the acoustic principles helps you choose a quieter floor. Sound insulation is divided into airborne sound insulation (voices, TV) and impact sound insulation (footsteps, dropped objects). Wood flooring is only average for airborne sound, but it performs relatively well for impact sound because wood itself is resilient and cushions impacts.

Among all wood flooring types, cork flooring has the best impact sound insulation – laboratory data show reductions of over 20 dB. Next is solid wood (especially when installed over sleepers, as the air cavity absorbs sound), followed by engineered wood, and lastly laminate. However, laminate with a high‑density acoustic underlayment can also improve performance. Installation method matters too: floating installation transmits more impact sound than sleeper installation, because the floor lies directly on the underlayment and sound travels through a rigid structure. Sleeper installation, with its air gap, gives better sound insulation but reduces ceiling height.

If you live in an apartment and worry about disturbing downstairs neighbours, take these measures: lay an acoustic underlayment beneath the floor. Dedicated acoustic underlays are made of cork, rubber, polyurethane foam, etc., 3‑7 mm thick, significantly reducing impact noise. China’s Green Building Evaluation Standard requires impact sound pressure level ≤ 65 dB; high‑quality residences require ≤ 55 dB. When buying, ask the seller for the product’s impact sound insulation test data. Additionally, fitting felt pads under furniture and placing rugs indoors are effective supplementary measures. In short, a quiet home starts with choosing the right floor and a proper sound insulation layer.