75mm Rockwool RW3 Acoustic Sound Insulation Slab (4.32m2/Pack)

What Are Rockwool RW3 75mm Slabs? 

Restore harmony to your living space with Rockwool RW3 75mm slabs. Engineered with precision, these resin-bonded rock mineral wool slabs are meticulously designed to mitigate unwanted noise and prevent sound leakage within your home, fostering an environment of serenity and calm. 

Renowned for their premium quality, these semi-rigid slabs not only excel in soundproofing capabilities but also offer unparalleled fire protection, boasting an A1 rating (non-combustible) on the Euroclass scale.

With a thermal conductivity of 0.034 W/mK, these slabs contribute significantly to maintaining the thermal envelope of your home, ensuring optimal energy efficiency and comfort. 

Versatile and robust, RW3 serves as an ideal acoustic, thermal, and fire insulation solution for a wide range of building projects, including commercial, leisure, industrial buildings, and beyond. 

Where Are Rockwool RW3 75mm Slabs Used? 

• Interior timber or steel partition walls
• Interior timber frame floors
• Interior timber frame ceilings
• Acoustic ceilings and partition panels
• I-joist interior partitions
• Party walls

Rockwool RW3 75mm Slab Benefits

• Low Global Warming Potential (GWP) and Zero Ozone Depleting Potential (ODP)
• Rot-resistant - withstands mould and mildew
• Thermal conductivity of 0.034 W/mK
• Water repellent qualities of the insulation prevent moisture build up, dampness and rot
• Excellent acoustic and thermal performance
• Fire resistance
• Density of 60kg/m3 per slab

Rockwool RW3 75mm Slabs Certifications

BS EN is British and European Standard Specifications. With over 100 years of experience, the British Standards Institute is recognised as the UK’s National standards body. BS EN considers Rockwool both:

• Euroclass A1 non-combustible in accordance with BS EN 13501-1 - achieving the highest possible level of fire performance
• CE and Key marked in accordance with BS EN 13162:2012 + A1:2015.v

75mm Rockwool RW3 slabs are also certified by Lloyd's register of shipping as non-combustible materials for use on:

• Fixed offshore installations
• MED classed ships- DTLR MCA approval
• Rated non-combustible in accordance with ISO 1182 and IMO A. 799

Rockwool RW3 75mm Slabs Storage & Handling

Rockwool RW3 75mm Slabs have a soft, fibrous texture, very similar to a loaf of bread. Because of this, a serrated blade is all you need to slice through them.

When it comes to storage, we advise that you store the slabs inside in a cool, dry area. 

About Rockwool

Rockwool is recognised as being the market-leading acoustic insulation solution. The Rockwool RW slab range offers outstanding thermal, acoustic and fire insulation properties as well as lifelong durability. RW3 insulation slabs achieve Lambda 0.034 W/mK and are available in eight standard thicknesses from 25-100mm, with a density of 60 kg/m3.

Rockwool manufactures RW3 insulation with no facing as standard, but it also makes it with non-woven mineral black tissue (60gsm), non-woven mineral white tissue (100gsm), and aluminium foil.

We recommend slabs with aluminium foil facings for people who want superior sound-deadening insulation that will protect their homes for years to come.

Rockwool RW3 75mm Acoustic Performance

Rockwool RW slabs work in two distinct ways to dampen sound, either by impeding the transmission of sound through an element of the structure or by absorption of sound at the surface.

These slabs have a density of 60kg/m3 per slab. The denser the material, the more layers that sound vibrations have to travel through. Rock is a naturally poor conductor of sound. RW3 is the perfect choice for people who want to insulate their homes against unwanted noise.