Description
Product Overview
ROCKWOOL RWA45 25mm (1200mm × 600mm) Acoustic Insulation Slab is a lightweight, high-performance resin-bonded stone wool slab designed to provide dependable acoustic absorption, thermal insulation, and Euroclass A1 fire resistance. Despite its minimal thickness, the RWA45 25mm slab delivers reliable sound reduction and non-combustible performance for use in linings, ceilings, service voids, and walls across residential, commercial, and industrial building environments.
Key Features & Benefits
- Thermal conductivity (λD) of 0.035 W/m·K for consistent thermal efficiency.
- Euroclass A1 fire rating – completely non-combustible stone wool for maximum fire safety.
- Effective acoustic absorption suitable for improving airborne sound insulation.
- Ideal for acoustic linings, lightweight partitions, service voids, and low-depth applications.
- Standardised 1200mm × 600mm slab size enables easy cutting and installation.
- Pack coverage: 11.52 m² (16 slabs per pack).
- Water-repellent, non-hygroscopic, and resistant to mould and moisture.
- Manufactured to EN 13162:2012 + A1:2015 standards.
Applications / Typical Uses
- Acoustic wall linings requiring enhanced sound absorption in thin build-ups.
- Ceilings, roof linings, and service void insulation where space is limited.
- Upgrading acoustic performance in refurbishments and lightweight structures.
- Suitable for residential, commercial, and industrial new-builds or retrofits.
Installation & Handling
- Store slabs in dry conditions and protect from moisture prior to fitting.
- Cut using a sharp insulation knife or saw for accurate, clean edges.
- Fit slabs tightly against linings, battens, or within shallow service voids to avoid gaps.
- Follow applicable building regulations for acoustic, thermal, and fire compliance.
- Handle with care to avoid unnecessary compression or damage to slab edges.
Compliance & Certification
- Product Standard: EN 13162:2012 + A1:2015.
- Fire Classification: Euroclass A1 (non-combustible).
- Thermal conductivity: λD = 0.035 W/m·K.
- Manufactured using sustainable, non-combustible stone wool fibres.
Pack & Coverage Information
- Slab Dimensions: 1200mm × 600mm
- Thickness: 25mm
- Slabs per Pack: 16
- Pack Coverage: 11.52 m²
