Acoustic Overlay Board


Moisture resistant 9 mm thick tongue and grooved medium density fibreboard (MDF) board with a pre-bonded 12 mm thick high-performance barrier mat and resilient layer. It dramatically reduces sound transmission through timber floors.

Features and benefits:

  • Excellent impact sound performance.
  • Effectively improves airborne sound insulation.
  • Complies with Part E of the Building Regulations (E&W).
  • The MDF based top surface is immediately ready for final floor installation.
  • Must be used in conjunction with JCW Perimeter Edging Strip to ensure Building Regulations compliance.


Acoustic Overlay Board

General information

Uniclass 2015

Pr_25_71_97_53 Medium-density fibreboardsPrimary


K11/225 Particleboard floating floor

K11/25 Particleboard floating floor

K11/275 Acoustic separating floor system

Specification data - Medium-density fibreboards

Product Reference

Acoustic SoundBoard Premium 21 - 1440

Standard product features

Size (h x w x l):

21 x 600 x 1200 mm.


9.73 kg/m².

Impact sound reduction:

51 dB Ln,w.

Airborne sound improvement:

Rw = 61 dB, Rw + Ctr = 52 dB.

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