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A high mass acoustic floorboard developed to increase both airborne and impact acoustic performance when used in an existing construction that is deemed to be very lightweight. By adding high amounts of mass to a lightweight construction, the airborne noise performance is increased.

Must be used in accordance with Hush Seal 20 or Hush RD Flanking Strip and all board joints should be bonded with Hush Cem Panel Adhesive.


  • High Mass acoustic flooring to improve both airborne and impact noise issues.
  • Excellent acoustic performance.
  • Very stable surface to carry many floor finishes.
  • Can be used in refurbishment, change of use and new build developments.
  • Can be used as part of a Code For Sustainable Homes compliant development.
  • Building Regulations Approved Document E (E&W), Technical Handbook Section 5 (Scotland) and Technical Handbook G (Northern Ireland) compliant.
  • Can achieve Robust Details Performance levels on timber frame development.

Related literature

The following content references this product:

Standard product features


1200 x 600 mm.


18 mm thick tongued and grooved cement particle particleboard with a 10 mm thick Hushfelt™ resilient layer.

Thickness (nominal):

28 mm.


24 kg/m².

Acoustic performance:

  • Impact (Lntw): 56 dB.
  • Airborne (Dntw): 61 dB.
  • Airborne (Dntw +Ctr): 57 dB.

Thermal conductivity:

0.26 W/mk.

Fire rating:

Class 0.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-45-95/470 Particleboard

Product specification

An important note about specifying



Hush Acoustics


+44 (0)151 933 2026

Product reference

Hush Panel Cem 28

Manufacturer details

44 Canal Street,
Merseyside, L20 8QU
Tel +44 (0)151 933 2026
Fax +44 (0)151 944 1146
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