Home > Companies > Hush Acoustics > Hush Under Screed Acoustic Membrane

Acoustic membrane designed to isolate a screed from concrete, concrete plank, raft, concrete/ metal and beam and block structures.


  • Easy to install.
  • The product has a high resistance to compressive loads and remains outstanding elastic.
  • Outstanding impact sound reduction.
  • Loose lay system which does not slip during installation.
  • Outstanding compressive strength and load bearing performance.
  • High resilience does not compress and reduce sound absorption.
  • Environmentally friendly - fully recycled.
  • 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 be used as an alternative product for Robust Details specifications.

Related literature

The following content references this product:

Standard product features

Roll size (l x w):

6–10 x 1 m (dependent on thickness).



Surface finish:

Fine-tuned granulate.

Acoustic performance:

  • Impact (Lntw): 55 dB.
  • Airborne (Dntw): 53 dB.
  • Airborne (Dntw +Ctr): 50 dB.

Technical properties:

  • Tensile strength (to DIN 53571): 0.7 N/mm².
  • Tear resistance (to DIN 53571): 75%.
  • Density (approximate): 700 kg/m³.
  • Flammability rating: B2.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-45-70/437 Resilient layer insulation

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Hush Acoustics


+44 (0)151 933 2026

Product reference

Hush Under Screed Acoustic Membrane


[6 mm]
[8 mm]
[10 mm]

Manufacturer details

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