Rockwool RW3 Slab
(6 Products)Rockwool RW3 acoustic and thermal insulation slabs represent an advanced, high-density mineral wool product designed for diverse applications in construction. With a focus on thermal, acoustic, and fire-resistant properties, RW3 slabs are integral in meeting stringent building standards, particularly in fire safety and sound reduction. These slabs are ideal for a range of sectors, including residential, commercial, and industrial construction, offering a reliable and high-performance solution for insulation. Rockwool RW3’s non-combustible material composition, exceptional durability, and sustainability make it a trusted choice for creating safer, quieter, and more energy-efficient environments.
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What is Rockwool RW3?
Rockwool RW3 is a mineral wool-based durable insulation solution with a high density of 60 kg/m³, specifically engineered to provide superior performance in thermal, acoustic, and fire insulation. Each slab measures 1200mm x 600mm, designed to fit standard building applications while being easily adaptable through cutting and shaping.
RW3 insulation slabs achieve the highest fire-resistance classification with a Euroclass A1 non-combustible rating, certifying them as highly suitable for fire protection measures. Additionally, Rockwool RW3 slabs are rot-proof, water-repellent, and maintain high structural integrity, making them a robust insulation solution suitable for a wide range of applications in walls, floors, ceilings, and roofs.
Where are Rockwool RW3 Acoustic Insulation Slabs Used?
- Partition Walls: RW3 slabs offer significant thermal and acoustic insulation, minimising sound transmission and contributing to temperature control between rooms. Their density and structural stability enhance compartmentalisation, effectively segmenting spaces to optimise both comfort and safety.
- Ceilings and Roofs: The high fire resistance of Rockwool RW3 slabs is particularly advantageous in ceilings and roofing, where it provides critical fire protection, mitigates fire spread, and contributes to energy efficiency by controlling temperature variations.
- Floors: The slabs offer outstanding acoustic insulation between levels, reducing airborne sound transmission in multi-story buildings. Thermal performance in floors also promotes overall energy efficiency, particularly in residential and commercial structures.
- Commercial and Industrial Buildings: Rockwool RW3’s non-combustible and robust insulation properties make it an excellent choice for high-demand industrial settings, where it effectively supports fire safety protocols and noise reduction.
Rockwool Insulation RW3 Insulation Slabs Benefits
Advanced Thermal Insulation
Rockwool RW3 slabs are highly effective in thermal insulation, offering a low thermal conductivity of 0.034 W/mK. This enables optimal heat retention or dissipation, reducing reliance on HVAC systems and supporting long-term energy efficiency in buildings. RW3's mineral wool composition provides consistent thermal performance, a critical factor in maintaining comfortable indoor climates across diverse construction types.
Superior Fire Performance and Resistance
Rockwool RW3 is Euroclass A1 certified as non-combustible, ensuring it meets the highest fire safety standards. This rating signifies the slabs' essential level of fire insulation properties, effectively compartmentalising areas to delay fire spread and allowing critical evacuation time. Made from inherently fire-resistant mineral wool, RW3 rockwool slabs are instrumental in enhancing fire safety, particularly in densely occupied or industrial spaces where fire protection measures are paramount.
High-Performance Acoustic Insulation
The dense mineral wool structure of RW3 slabs facilitates superior sound absorption, making them ideal for acoustic insulation in walls, floors, and ceilings. Rockwool RW3 effectively reduces airbourne sound transmission, creating quieter interiors by blocking sound transfer between rooms or levels.
This acoustic capability is particularly valuable in multi-unit residential buildings, office spaces, and industrial settings where noise control is a priority.
Water Repellent and Durable
The water-repellent qualities of RW3 slabs prevent moisture penetration, which can otherwise compromise insulation performance. This water resistance extends the lifespan of the insulation, particularly in environments prone to moisture exposure.
Additionally, RW3 slabs are rot-proof and resistant to vermin, ensuring long-term stability and functionality, which reduces the need for frequent maintenance or replacement.
Sustainable and Environmentally Friendly
Rockwool RW3 is composed of mineral wool, an environmentally sustainable material that is recyclable and contributes to eco-conscious building practices. Its durability and vermin-resistant properties reduce replacement frequency, adding to its environmental benefits. Rockwool’s production processes also align with sustainability goals, making RW3 slabs a responsible choice for green building initiatives.
Rockwool RW3 Key Features
- Dimensions: Each slab measures 1200mm x 600mm, facilitating compatibility with standard building configurations.
- Density: With a density of 60 kg/m³, RW3 slabs achieve optimal balance between insulation performance and structural integrity.
- Thermal Conductivity: A low thermal conductivity of 0.034 W/mK delivers effective thermal regulation, contributing to significant energy savings.
- Fire Rating: Euroclass A1 non-combustible, ensuring the highest available fire safety rating for materials used in building construction.
- Water Repellent: The slabs resist water ingress, preserving insulation efficiency over time and maintaining structural resilience in humid environments.
- Acoustic Properties: The high-density mineral wool composition significantly reduces airborne sound transmission, enhancing acoustic comfort.
- Non-Combustible Material: Made from mineral wool, Rockwool RW3 slabs provide inherent fire resistance, suitable for high-safety applications.
- Eco-Friendly Composition: RW3 slabs are sustainable, recyclable, and support long-term environmental goals in the building industry.
Rockwool RW3 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 RW3 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
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
Frequently Asked Rockwool RW3 Slab Questions
How Does Rockwool RW3 Insulation Reduce Sound Pollution?
Rock is a naturally poor conductor of sound, making RW3 the perfect choice for people who want to insulate their homes against unwanted noise.
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.
Are Rockwool RW3 Slabs Waterproof?
Although not entirely waterproof, Rockwool insulation is moisture-resistant and vapour permeable.
Rockwool does not wick water, meaning water will drain away rather than soak into the insulation, while gaseous water vapour will simply pass through it. Therefore, if Rockwool gets wet, you can dry the material out and it will maintain its original performance characteristics.
Can You Touch Rockwool RW3 Slabs With Bare Hands?
We always advise wearing the appropriate safety gear when working with Rockwool: gloves, goggles and a mask should be worn at all times.
If you are to touch the material with bare hands (not recommended), wash your hands thoroughly with cold water after contact.
How Long Will Rockwool RW3 Slabs Last Before They Have To Be Replaced?
Should you correctly install the insulation (according to manufacturer guidance), Rockwool RW3 slabs should last the lifetime of your structure. Since Rockwool products are inorganic they will not decay and left to it, they should sustain performatively - given that the slabs endure no damage.
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