Knauf RS60 50mm
Performance: Will vary due to featuring in acoustic systems.
Dimensions: 1200mm x 600mm x 50mm
Weight: 20kg
For: Homes and workplaces.
Compliance: Compliant with both Part E Building Regulations (England, Wales, Northern Ireland and the Republic of Ireland).*
Installation: Will vary depending on which system it features.
Where: For all cavities found between floor joists, stud frame walls and ceilings. Also in conjunction with acoustic cradles such as MuteCradle™ 45/60mm.
Universally recognised throughout the world of soundproofing, commonly used as part of an acoustic system, or combined with additional acoustic materials such as our MuteClip®. There is currently a shortage on Rockwool RW3, RWA45, Knauf RS60 and RS45 within the UK, please do contact do office before orders so we can indicate stock availability.
More Information


Specialist Acoustic Mineral Wool for Part E Building Regulations Compliance
Knauf Acoustic Mineral Wool (RS60) (60kg per m3) is high-density acoustic mineral wool that is used to treat the open spaces, or cavities, between flooring joists, stud-frame walls and battened ceilings. As Acoustic Mineral Wool is a fibrous material, it helps to lessen sound energy by turning it into heat, helping to decrease the remaining noise ‘bouncing’ around inside the cavity and amplifying. As a standalone product, it is only effective against very light background noise issues. We recommend Knauf Acoustic Mineral Wool to be used as part of a system when a cavity is created or existing.
Acoustic Mineral Wool will also help to prevent Flanking Transmission adjacent cavities. Any soundproofing system fitted without this material will not achieve its complete acoustic performance and may fall short of expectations or essential acoustic regulations.
Acoustic Mineral Wool has a greater density than thermal wool, and this is evident in their slab appearance. The reduction as an acoustic insulation material comes as an absorptive rating NRC (Noise Reduction Coefficient) which differs for each thickness. This means that it is an absorptive material as opposed to a dense soundproofing product. You will find all acoustic systems that Acoustic Mineral Wool is featured in by selecting the ‘Systems’ tab above. Here you will see how vital it is!
Information
- A crucial component for all soundproofing systems with joists, battens, acoustic cradles or stud-frames
- To be used in cavities to provide optimum soundproofing performance for all systems
- Slab dimensions 1200mm x 600mm x 50mm (9 per bale – 6.48m2)
- Other thicknesses include: 100mm, 75mm and 25mm
- Euroclass A1 fire rating
Always leave an air gap to ensure full performance a minimum of 10mm - A 3-5 day lead time can be expected with this product, please call ahead for availability
Knauf RS60 Pack Quantities
- 100mm
- 75mm
- 50mm
- 25mm
- 4 Slabs (2.88m2)
- 6 Slabs (4.32m2)
- 9 Slabs (6.48m2)
- 18 Slabs (12.96m2)
FAQs
Acoustic Mineral Wool is fibrous, and this means that fibres can be released into the air when exposed, which is why you place them in cavities and not to use as an exposed sound absorption panelling. We offer a vast range of sound absorption materials where you can be as creative as you like, a variety of colours and 3D structures can all tailored to your space.
Installation Guide
Acoustic Mineral Wool is not listed as a toxic or hazardous material, but when installing it does release small dust particles, so we recommend the use of gloves, eye protection and protective mask.
Measure the depth of the cavity first, or if you know the stud depth you are using, make sure that you choose a depth of Acoustic Mineral Wool that allows for a 10mm air gap on either side.
The reason you leave this air gap is to avoid compressing the fibrous properties between the two partitions you are soundproofing, for example, do not use a 100mm depth in a 50mm gap.
Acoustic Mineral Wool is easy to cut with large scissors, or we found a bread knife to be a great tool here.
Cut the slab a little larger than the stud or joist gap to friction hold, or use a form of wiring to hold it in place.
Sound insulation advice for Part E
Soundproofing Walls
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