Isover Acoustic Slab

Acoustic Slab is a glass mineral wool slab providing high levels of acoustic performance in timber and metal stud walls, timber joist internal and separating floors as well as ceilings. The slabs are sized to be easily friction fitted between standard stud spacings.

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Product Features

  • 1200 x 600mm glass mineral wool slabs
  • Manufactured from up to 82% recycled glass
  • Achieves a Eurofins Gold certification, the highest accreditation for indoor air quality

Fire Classification

Euroclass A1 Reaction to Fire classification according to EN 13501-1.

Product Specification

Thickness (mm) Length (mm) Width (mm) Pack area (m²) Pallet area (m²)
50 1200 600 11.52 230.40
75 1200 600 7.20 144.00
100 1200 600 5.76 115.20

Product Benefits

  • Excellent Acoustic Performance - Delivers a measurable reduction in sound transmission in a number of internal acoustic applications.
  • British Gypsum SpecSure® Warranty - Features in a number of British Gypsum proprietary systems - for more details, visit The SpecSure® warranty confirms British Gypsum proprietary systems will perform as specified for the lifetime of the building. For further details, please visit
  • Sustainability - Manufactured from up to 82% recycled glass on a plant that uses 100% renewable electricity. For further details, see the Environmental section below or visit
  • Fire Classification - Achieves a Euroclass A1 Reaction to Fire classification, according to EN 13501-1.
  • Easy to Install - Straightforward to handle, cut and install with minimal waste (off-cuts can be reused). Friction fits between 600mm stud centres with no need for additional fixings.

Key Considerations

When using Isover Acoustic Slab, you need to satisfy yourself that use of the product meets all relevant national Building Regulations and guidance as well as local, national and other applicable standards relevant for your construction or application, including requirements in relation to fire and applicable height restrictions.
Please refer to the following product documents: