Rockfloor Acoustic & Thermal Slab 25mm
Rockfloor Acoustic & Thermal Slab 25mm is a high-density stone wool floor insulation slab designed to improve acoustic and thermal performance in floor constructions. It is commonly used within floating floor systems, timber floors, concrete floors and separating floor build-ups where impact noise reduction and thermal insulation are required.
The dense stone wool structure helps absorb vibration and reduce impact sound transfer through the floor, while also helping to minimise thermal and acoustic bridging. The slab can be used below flooring grade chipboard in dry floor constructions or below a suitable screed in wet floor systems, depending on the project design.
At 25mm thick, this slab is a useful low-profile option where floor build-up height is limited but additional acoustic and thermal performance is still needed.
Key Benefits
- High-density stone wool floor slab
- Helps reduce impact noise and vibration transfer
- Provides thermal insulation for floor constructions
- Suitable for floating floor systems
- Can be used in timber, concrete and separating floor build-ups
- Helps minimise thermal and acoustic bridging
- Non-combustible stone wool insulation
- Easy to cut, handle and install
Specifications
- Product type: Acoustic and thermal floor insulation slab
- Thickness: 25mm
- Slab size: 1200mm x 1000mm
- Coverage: 1.2m² per slab
- Pack size: 1 per pack
- Material: High-density stone wool
- Facing: Tissue faced
- Application: Floors, floating floors, separating floors, timber floors, concrete floors and screeded floor systems
- Thermal conductivity: 0.040 W/mK, subject to supplier datasheet confirmation
- Fire performance: A1 non-combustible, subject to supplier datasheet confirmation
- Suitable for: Domestic and commercial floor soundproofing and thermal insulation projects
Typical Uses
- Impact noise reduction in floors
- Thermal insulation below floor finishes
- Floating floor systems
- Separating floor constructions
- Timber joist floor upgrades
- Concrete floor upgrades
- Music rooms, studios, flats and residential soundproofing projects
Installation Notes
Install slabs tightly butted together with staggered joints where possible. The subfloor should be level, clean and structurally sound before installation. Where used on ground floors or over substrates that may contain moisture, a suitable damp proof membrane may be required. Perimeter isolation should be used to reduce flanking sound transfer and prevent the floating floor layer from touching surrounding walls.
Final acoustic performance will depend on the full floor build-up, existing structure, perimeter detailing, floor finish and installation quality.
