Can You Put Acoustic Underlay Under Carpet? Yes — Here's How
Written by our acoustic insulation specialist — 15+ years experience supplying soundproofing to UK homeowners, developers and contractors. About our experts.
From our acoustic insulation specialist.
Yes — acoustic underlay works excellently under carpet and is one of the easiest ways to add meaningful noise reduction to a carpeted floor.
Which Products Work Under Carpet
Our 6mm recycled rubber underlay performs excellently under carpet — 74dB impact reduction plus cushioned comfort. Key: use closed-structure rubber, not open-cell foam.
Installation Steps
- Lay acoustic underlay loose over clean, dry subfloor
- Tape all joins with acoustic tape
- Turn up at perimeters by 10mm
- Lay carpet over the top
Do I Need Separate Carpet Underlay Too?
Usually not — our rubber underlay provides both acoustic and comfort performance. For maximum softness in bedrooms, a thin felt layer can be added over the top without significantly affecting performance.