ROCKWOOL RW3 is a premium high-density stone wool insulation slab designed for superior thermal insulation, acoustic soundproofing, and fire protection in residential, commercial, and industrial construction projects across Ireland. Ideal for insulating internal walls, partition walls, floors, ceilings, roof spaces, and service voids, RW3 is a trusted choice for builders, contractors, and self-builders looking for reliable, high-performance insulation.
Manufactured from durable mineral wool (stone wool), ROCKWOOL RW3 provides excellent heat retention with a thermal conductivity of 0.034 W/mK, helping to improve building energy efficiency and reduce heating costs. Its dense fibre structure delivers outstanding acoustic insulation, making it perfect for reducing airborne noise between rooms, offices, apartments, and floor levels.
As a Euroclass A1 non-combustible insulation board, ROCKWOOL RW3 offers the highest fire safety rating, helping to improve passive fire protection in modern construction. The semi-rigid slab design allows for easy friction-fit installation between timber stud, metal stud, and joist systems, maintaining its shape without sagging over time.
Suitable for a wide range of building applications, ROCKWOOL RW3 insulation slabs are one of the most versatile insulation products available in Ireland, commonly used in new builds, renovations, attic conversions, extensions, and commercial fit-outs.
Key Benefits:
✔ High-performance acoustic insulation for walls, floors & ceilings
✔ Excellent thermal insulation – 0.034 W/mK Lambda
✔ A1 fire-rated non-combustible insulation
✔ Easy to cut, handle & install
✔ Water repellent and vapour permeable
✔ Long-lasting shape retention and durability
✔ Suitable for timber frame, metal stud, masonry & roofing applications
