100mm Rockwool Sound Insulation Slab - 4.32m2 Pack
Improve sound insulation and create quieter, more comfortable living spaces with ROCKWOOL Sound Insulation Slab 100mm. Manufactured from high-quality stone wool, these acoustic insulation slabs are designed to absorb sound within internal walls, floors and partitions, helping reduce unwanted noise transmission between rooms.
With a substantial 100mm thickness, these slabs are particularly suitable for deeper stud wall cavities and intermediate timber floors, providing effective sound absorption as part of a properly designed acoustic insulation system.
The dense, fibrous stone wool structure helps absorb airborne sound, while the flexible slabs can be cut and friction-fitted between timber or metal studs and floor joists. This ensures consistent cavity coverage and helps minimise gaps that could reduce acoustic performance.
In addition to their sound-absorbing properties, ROCKWOOL slabs offer thermal insulation benefits and excellent fire resistance. Manufactured from non-combustible stone wool, they are a dependable choice for domestic and commercial construction, extensions, loft conversions and refurbishment projects.
Supplied in a convenient 4.32m² pack, these 100mm thick insulation slabs provide a practical solution for improving acoustic comfort throughout a building.
Key Features & Benefits
Excellent acoustic performance – helps reduce airborne sound transmission between rooms
100mm thickness – ideal for deeper wall cavities and intermediate floors
Non-combustible stone wool – Euroclass A1 reaction-to-fire classification
Effective sound absorption – fibrous structure absorbs sound energy within cavities
Thermal insulation benefits – helps reduce heat transfer between spaces
Easy friction-fit installation – fits securely between suitable studs and joists
Flexible and easy to cut – straightforward installation with minimal waste
Durable and dimensionally stable – maintains its shape and performance over time
Suitable for domestic and commercial use – ideal for new builds and renovations
4.32m² pack coverage – convenient for estimating material requirements
Typical Applications
Internal timber and metal stud walls
Intermediate timber floors and ceilings
Bedrooms, living rooms and home offices
Loft conversions and extensions
Separating partitions within buildings
Commercial offices and refurbishment projects
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | ROCKWOOL |
| Product | Sound Insulation Slab |
| Material | Stone Wool |
| Thickness | 100mm |
| Pack Coverage | 4.32m² |
| Slab Size | 1200 x 600mm* |
| Slabs Per Pack | 6* |
| Fire Classification | Euroclass A1 (Non-Combustible) |
| Insulation Type | Acoustic and Thermal |
| Application | Internal Walls, Floors and Partitions |
| Installation | Friction Fit Between Studs or Joists |








