To soundproof a floor properly, match the system to the floor construction, noise type and final floor finish. A soft underlay alone is not a universal solution.
Step 1: Identify Timber or Concrete
A timber floor normally has a joist void and is more prone to cavity resonance. Concrete already provides useful mass, but can still transmit impact vibration very effectively.
Step 2: Identify Impact or Airborne Noise
Impact noise includes footsteps, dropped objects and furniture movement. Airborne noise includes voices, TV and music. Many separating floors need to deal with both.
Step 3: Prepare the Existing Floor
Repair loose boards, uneven decking and obvious gaps before fitting the acoustic treatment. If a timber joist void is accessible, acoustic mineral wool can be used to reduce resonance within the cavity.
Step 4: Choose the Surface Treatment
For impact control, acoustic underlays, resilient mats, floating boards and overlay systems can reduce the direct vibration path. The correct choice depends on the floor construction, available height and whether the final finish is carpet, laminate, engineered timber, vinyl or tile.
Step 5: Keep the Floor Isolated
Where the system is designed to float or remain resilient, follow its perimeter and fixing instructions carefully. Hard contact with surrounding walls or fixings driven through resilient layers can create vibration bridges.
Main Materials to Consider
Complete Floor Range • Acoustic Underlay • Acoustic Mineral Wool • Perimeter & Installation Accessories
Common Floor Mistakes
- Choosing ordinary underlay for a serious impact-noise problem.
- Ignoring the joist void in a timber floor.
- Buying before deciding the final floor finish.
- Rigidly fixing through a floating or resilient layer.
- Missing perimeter isolation and flanking details.
Want a Materials Check?
Send the floor construction, dimensions, final floor finish, available build-up height and the noise you are trying to reduce.
