Knauf Rocksilk RS45 Insulation Slab 50mm (7.20m2)

Knauf Rocksilk RS45 50mm is a high-density insulation slab designed for use in internal wall insulation, partitions, and floor applications where both thermal efficiency and acoustic insulation are required. Manufactured from mineral wool using Knauf’s ECOSE® Technology, it provides a reliable solution for improving building performance across a range of construction types.

The 50mm thickness is suited to tighter cavity spaces such as stud walls and suspended floors, where it helps reduce airborne sound transfer while contributing to heat retention within the structure. Its dense fibre structure also supports fire protection within internal building elements.

Key Features

• 50mm insulation slab for internal applications
• Suitable for acoustic insulation and sound reduction
• Thermal conductivity of 0.035 W/mK
• Euroclass A1 non-combustible classification
• Ideal for stud walls, partitions, and floors
• Manufactured using ECOSE® Technology
• Standard slab size 1200mm x 600mm

Product Overview

Commonly used in residential and commercial construction, Rocksilk RS45 50mm is suitable for partition insulation, internal wall systems, and floor constructions where space is limited but performance is still required. The slabs are friction fitted between framing and can be cut easily to suit installation requirements.