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

75mm Acoustic Insulation

75mm Rockwool RW4 Acoustic Insulation Slab 1.2m x 600mm (2.88m2)

75mm Knauf Acoustic Roll 14.5m x 1.2m (2 x 600mm) 17.40m²