ROCKWOOL Sound Insulation Slab
ROCKWOOL Sound Insulation Slab is a high-performance stone wool insulation designed to help reduce unwanted noise transmission through internal walls, separating walls and floors. Ideal for residential and commercial projects, it provides effective acoustic insulation while also offering excellent fire resistance and additional thermal performance.
Manufactured from non-combustible stone wool, ROCKWOOL Sound Insulation Slab helps absorb sound waves and dampen vibrations within building structures. Its combination of density and non-directional fibre orientation makes it particularly effective for improving sound separation between adjoining rooms, floors and properties.
Whether you are renovating a home, constructing new partition walls or looking to improve privacy between rooms, ROCKWOOL Sound Insulation provides a practical and durable acoustic solution.
Effective Acoustic Insulation
Noise can easily travel through walls and floors, particularly in properties with lightweight partition systems. ROCKWOOL Sound Insulation Slab is designed to reduce the transfer of sound between different areas of a building, helping create quieter and more comfortable living or working spaces.
Stone wool works by absorbing sound energy within its open fibre structure, helping reduce airborne sound and dampen vibrations. This makes it an excellent choice for bedrooms, home offices, living areas and other spaces where improved acoustic privacy is important.
ROCKWOOL Sound Insulation Slab is also Quiet Mark approved, recognising its noise-reduction performance.
Ideal for Walls and Floors
ROCKWOOL Sound Insulation Slab is suitable for a variety of construction applications, including:
- Internal partition walls
- Separating walls
- Intermediate floors
- Separating floors
- Drylining and partition systems
The slabs can be installed between timber or metal studs and between floor joists to help reduce noise passing from one room or property to another. ROCKWOOL states that the product can be used as part of constructions designed to meet the requirements of Approved Document E for resistance to the passage of sound.
This versatility makes it suitable for new-build construction, extensions, conversions and refurbishment projects.
Flexible and Easy to Fit
ROCKWOOL Sound Insulation Slabs incorporate a flexible edge designed to help the insulation friction fit securely within the building structure.
This close fit helps reduce gaps around the insulation, which is important when creating an effective acoustic barrier. The slabs can also be easily cut to fit around pipes, cables, sockets and other services, making them practical for use in both straightforward and more detailed installations.
The semi-rigid format helps the insulation maintain its position between framing members without easily slumping or moving after installation.
Non-Combustible Stone Wool
In addition to its acoustic properties, ROCKWOOL Sound Insulation Slab offers excellent fire performance.
The product achieves a Euroclass A1 reaction to fire classification in accordance with BS EN 13501-1, meaning the stone wool insulation is classified as non-combustible. ROCKWOOL also states that its stone wool can resist temperatures exceeding 1,000°C.
This makes ROCKWOOL Sound Insulation particularly useful where both acoustic performance and fire safety are important considerations within the building design.
Additional Thermal Performance
Although primarily designed for acoustic insulation, ROCKWOOL Sound Insulation Slab also contributes to thermal performance.
The product has a declared thermal conductivity of 0.038 W/mK, helping reduce heat transfer through insulated building elements.
This allows one insulation product to provide acoustic, thermal and fire-performance benefits within suitable wall and floor constructions.
Create Quieter, More Comfortable Spaces
Whether you are trying to reduce noise between bedrooms, improve privacy in a home office or minimise sound transmission between adjoining properties, ROCKWOOL Sound Insulation Slab provides a reliable and versatile solution.
Its combination of sound absorption, non-combustible performance, thermal insulation and straightforward installation makes it an excellent choice for professional building projects and home renovations where improved acoustic comfort is required.
Product Specifications
| Length (mm) | Width (mm) | Thickness (mm) | Pieces/Pack | m²/Pack |
| 1200 | 400 | 100 | 6 | 2.88 |
| 1200 | 600 | 100 | 8 | 4.32 |
| 1200 | 600 | 50 | 12 | 8.64 |









