NBS Source


An overlay board designed to be laid above a timber deck to reduce impact and airborne sound transmission. It consists of 18 mm thick P5 chipboard, tongue and grooved four sides, laminated to an 8 mm thick recycled foam resilient layer and provides superior impact performance than Karma Acoustic Overlay 23.

Features/ Benefits:

  • Enhanced impact sound performance.
  • Minimal height increase makes it ideal for refurbishments.
  • Quick and easy to install, offering savings in time and labour.
  • Non load bearing partitions can be built of the floating floor.
  • GWP: 0.

General information


Pr_25_71_97_60 ParticleboardsPrimary


K11/125 Battened particleboard floating floor

K11/20 Battened particleboard floating floor

K11/225 Particleboard floating floor

K11/25 Particleboard floating floor

K11/275 Acoustic separating floor system

K11/30 Particleboard flooring

Specification data - Particleboards

Product Reference

Karma Acoustic OverlayPlus 23



Karma PVA adhesive

Karma acoustic perimeter strip

Standard product features

Size (l x w):

2400 x 600 mm.


26 mm.

Similar products from CMS Danskin Acoustics

Karma Acoustic Overlay 23

Karma Joistdeck 37

Karma Visco 400/600

Karma Visco 400/600

SoundDeck Extra

SoundDeck Extra