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Call us on 0208 123 9710 | Email us at info@soundstop.co.uk
Call us on 0208 123 9710 | Email us at info@soundstop.co.uk

Rockwool RWA45 Acoustic Mineral Wool - 45kg/m³

Original price £34.06 - Original price £37.47
Original price
£34.06
£34.06 - £37.47
Current price £34.06
🛠️ 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 High density slab mineral wool

  • Absorb sound energy and reduce reverberation

  • Non-flammable and chemically inert

Reduces airborne noise levels of up to 3-4dB when fitted in between floor/ceiling joists and reverberant noise levels of up to 8dB when fitted in ceiling constructions.


High density slab mineral wool is a product 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 has a mass of only 12kg/m³.


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

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.

The 45 kg density mineral wool while not the optimal choice might suit your budget better. It is used by a number of manufacturers within their systems to achieve regulation E solutions.


Rockwool RWA45 45kg Acoustic Mineral Wool typically provides a reduction in airborne noise levels of up to 3-4dB when fitted in between floor/ceiling joists. As such it is an invaluable component of any soundproofing system.

Rockwool RWA45 45kg Acoustic Mineral Wool typically provides a reduction in reverberant noise levels of up to 8dB when fitted in ceiling constructions.

Please contact our team for more information on this product

Here are the main details for this product:

Dimensions:

1200mm x 600mm

Thickness: 50mm / 75mm / 100mm Options

Pack Size:

50mm - Pack of 9
75mm - Pack of 6
100mm - Pack of 4

Weight: TBC

Density: 45Kg

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.