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Rockwool RW3 Acoustic Mineral Wool - 60kg/m3

Original price £43.96 - Original price £46.06
Original price
£43.96 - £46.06
Current price £43.96
🛠️ Minimum Order Value

This product is from our Building Materials range, which have a minimum order value of £140. View our Building Materials range to browse all the qualifying products.

  • 1200mm x 600mm 60kg density mineral wool slabs

  • Reducing the passage of airborne sound

  • Specifically designed to be more efficient than many alternative methods

Non-flammable and chemically inert high density wool specifically designed to combat noise.

Acoustic mineral wool is designed to work specifically at reducing the passage of airborne sound. It will also help reduce reverberant sound. It is important to differentiate it from light weight loft insulation which weighs only around 12kg/m³

The typical application for acoustic mineral wool is to absorb sound passing through a void. The mineral wool acts to absorb sound and reduce reverberation.

Please note that this is not a loft type insulation type wool but a high density wool specifically designed to combat noise. Anything on a roll is simply not dense enough.

The density of Acoustic Mineral Wool (starting at 45kg/m³) is specifically designed to be more efficient than many alternative methods of sound control and is the optimum solution when looking for an effective acoustic insulation to give added soundproofing control when installed between the joists of floors and into stud partitions.

Rockwool RW3 60kg Acoustic Mineral Wool typically provides a reduction in airborne noise levels of up to 4-5dB when fitted in between floor/ceiling joists.

Rockwool RW3 60kg Acoustic Mineral Wool typically provides a reduction in reverberant noise levels of up to 10dB when fitted in ceiling constructions.

We often recommend acoustic mineral wool under the floors when carrying out soundproofing work next to a party wall. This will help in cutting out sound which will travel through the party wall under the floor boards. Ideally the void should be packed and the mineral wool applied about 0.6-1m deep hard against the party wall. Filling the void.

It is non-flammable and chemically inert and is not adversely affected by any substance it may come into contact with. Random arrangement of fibres ensures no water penetration in any direction. It is rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, moulds or bacteria.

Please contact our team for more information on this product

Here are the main details for this product:


1200mm x 600mm

Thickness: 50mm / 75mm / 100mm Options

Pack Size:

50mm - Pack of 8
75mm - Pack of 6
100mm - Pack of 4

Weight: TBC

Density: 60Kg

Coverage: sqm

Fire rating: Euroclass A1

Thermal Conductivity:

View Product Information Guide

Please contact our team if you have any questions on this product.

Looking for a complete soundproofing solution?

If your looking for soundproofing for a particular situation or application, then the best place to start is with our soundproofing solutions that cover walls, floors, ceilings and reducing echo. Select the relevant application below to find out more.

Wall Solutions

Floor Solutions

Ceiling Solutions

Echo Solutions

Visit our Fitting Instructions section for more detailed instructions relating to your specific application.

Check out our Soundproofing Guides for more information, advice and tips on all aspects of soundproofing.