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ROCKWOOL Acoustic Membrane

ROCKWOOL Acoustic Membrane


A flexible, high density polymeric mass layer used n conjunction with Rockwool insulation products for improving the acoustic performance of built-up roof constructions.

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ROCKWOOL Acoustic Membrane is a flexible, high-density polymer mass layer. The product, when combined with ROCKWOOL insulation products, offers both high performance and economic acoustic solutions for flat roofing and built-up metal roofing systems (e.g. standing seam).

An ideal acoustic solution from the ROCKWOOL SOUNDPRO® range, for buildings requiring high levels of acoustic performance. These include schools, hospitals, cinemas, airports, concert halls, stadia, retail, leisure developments.


  • Excellent acoustic properties; enhances low frequency performance.
  • Easy to cut and install on site.
  • Available as a roll; less joints and faster installation.
  • Fully tested system.
  • Cost effective.
  • Suitable for new build and refurbishment.

General information


6050 mm x 1220 mm x 2.6 mm

4000 mm x 1200 mm x 5 mm

Uniclass 2015

Pr_25_57_51_66 Polymeric membranesPrimary


J41/10 Built-up reinforced bitumen membrane warm deck roof covering

J41/425 Mineral wool (MW) warm deck roof insulation

J42/10 Warm deck roof covering

J42/425 Mineral wool (MW) warm deck roof insulation

Specification data - Polymeric membranes

Product Reference

ROCKWOOL Acoustic Membrane 5kg

ROCKWOOL Acoustic Membrane 10kg


6050 mm x 1220 mm x 2.6 mm

4000 mm x 1200 mm x 5 mm


5 kg/m²

10 kg/m²

Standard product features


1900 kg/m³.

Tensile Strength:

30 N/cm² (To EN 12311).


Does not break when bending at -20°C.


300% (to EN 12311).

Resistance to Moisture:

ROCKWOOL Acoustic Membrane is water resistant.

Thermal Conductivity:

0.45 W/mK.

Acoustic Performance:

The addition of a mass layer is required in order to attain the highest acoustic performance levels for lightweight metal roof constructions. ROCKWOOL Acoustic Membrane offers additional mass whilst also providing inherent acoustic damping properties.

Using ROCKWOOL Acoustic Membrane in conjunction with ROCKWOOL roofing products results in improved sound insulation levels across the frequency range. Testing has confirmed that ROCKWOOL Acoustic Membrane provides improved acoustic performance in comparison with heavier, and thicker cementitious boards. Please contact ROCKWOOL for technical advice and supporting test data on typical constructions.

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