50mm Rockwool RW4 Acoustic Insulation Slab 1.2m x 600mm (4.32m2)

The Rockwool RW4 Slab is a resin-bonded stone wool insulation designed for superior thermal, acoustic, and fire performance. Suitable for use in partition walls, ceilings, floors, and roofs, it provides excellent sound absorption, energy efficiency, and non-combustible fire protection, making it a reliable choice for both residential and commercial projects.

Benefits

• Low thermal conductivity of 0.034 W/m·K, helping to improve energy efficiency and indoor comfort
• Rated Euroclass A1 non-combustible, offering the highest level of fire safety
• Effectively absorbs sound to reduce noise transmission between rooms and floors
• Durable and long-lasting, maintaining performance over the lifetime of the building
• Available with black or white tissue facing, or foil facing on one or both sides, to suit different applications
• Resin-bonded slab for easy handling and installation
• CE marked in accordance with EN 13162:2012+A1:2015
• Density exceeding 10 kg/m³, compliant with Approved Document E

Good to Know

• Suitable for use in flat roofs, partition walls, separating walls, and intermediate floors
• Available in three standard thicknesses from 50–100 mm
• Can be cut easily with a serrated or utility knife; wear gloves and goggles to avoid irritation
• Store under cover and clear of the ground. Avoid prolonged exposure to sunlight and rain
• Specialist PPE is not required, but a dust mask is recommended if cutting in unventilated areas