Description
Product Overview
ROCKWOOL RW4 50mm (1200mm × 600mm) Acoustic Insulation Slab is a high-density stone wool insulation product designed to deliver excellent acoustic absorption, reliable thermal resistance, and outstanding fire protection. It is suitable for use in walls, floors, ceilings, and roof build-ups where superior sound reduction and non-combustible performance are required. The slab is Euroclass A1 rated for fire safety and manufactured in accordance with EN 13162:2012 + A1:2015.
Key Features & Benefits
- Thermal conductivity (λD) of 0.034 W/m·K for strong thermal performance.
- Euroclass A1 fire rating – completely non‑combustible.
- High acoustic absorption helps reduce airborne and impact sound transmission.
- Suitable for internal partitions, floors, ceilings, and commercial acoustic applications.
- 1200mm × 600mm slab format ensures easy and efficient installation.
- Durable, water‑repellent, non‑hygroscopic and resistant to mould or rot.
- Manufactured in accordance with EN 13162:2012 + A1:2015 compliance standards.
Applications / Typical Uses
- Internal and separating partition walls where acoustic control and fire performance are required.
- Suspended ceilings and separating floors in multi‑storey or high-occupancy buildings.
- Roof and flat ceiling insulation requiring non‑combustible and thermally efficient materials.
- Suitable for new-build construction and refurbishment projects across residential, industrial and commercial sectors.
Installation & Handling
- Store slabs flat, dry and fully protected prior to installation.
- Cut to size with a sharp insulation knife or fine‑tooth saw for an accurate fit.
- Install slabs tightly‑butted to minimise gaps and maintain acoustic and thermal continuity.
- Follow relevant building regulations and system specifications for fire, acoustic and thermal performance.
- Handle carefully to avoid compression or surface damage during placement.
Compliance & Certification
- Product standard: EN 13162:2012 + A1:2015.
- Reaction to fire: Euroclass A1 (non‑combustible).
- Thermal conductivity: λD = 0.034 W/m·K.
Pack & Coverage Information
- Slab Dimensions: 1200mm × 600mm
- Thickness: 50mm
- Slabs per Pack: 6
- Pack Coverage: 4.32m²
- Packs per pallet: 16
- Pallet Coverage: 69.12 m² total

























