Rockwool RWA45 Acoustic Mineral Wool - 45kg/m3

The Rockwool RWA45 Acoustic Mineral Wool is a high-performance, versatile insulation solution that combines acoustic, thermal, and fireproofing capabilities. With a density of 45kg/m³, it is engineered to reduce airborne and reverberant noise, making it an ideal choice for soundproofing and thermal insulation in residential, commercial, and industrial applications. Offering Euroclass A1 non-combustibility and exceptional moisture resistance, this mineral wool ensures a safe, durable, and effective solution for a wide range of construction needs.

What is the Rockwool RWA45 Acoustic Mineral Wool?

The Rockwool RWA45 Acoustic Mineral Wool is a high-density slab insulation product designed to reduce noise transmission and improve thermal efficiency in buildings. It is made from high-quality resin-bonded mineral fibres, providing superior sound absorption, fire resistance, and durability. Its versatility makes it suitable for partition walls, floors, ceilings, and roofs, where acoustic and thermal performance are critical.

Key features include:

• Density: 45kg/m³
• Size: 1200mm x 600mm slabs
• Thickness: Available in various options from 25mm to 100mm
• Fire Rating: Euroclass A1 non-combustible
• Applications: Acoustic insulation, thermal insulation, and fireproofing.

How Does the Rockwool RWA45 Acoustic Mineral Wool Work?

The Rockwool RWA45 works by leveraging the random arrangement of its dense mineral fibres to:

1. Absorb Sound Energy:
• The high-density composition traps and absorbs sound waves as they pass through, reducing noise transmission.
• It minimizes airborne noise by 3-4dB when installed between floor and ceiling joists.
2. Reduce Reverberation:
• In ceiling applications, it reduces reverberant noise levels by up to 8dB, creating a quieter and more comfortable environment.
3. Thermal Efficiency:
• The mineral wool’s dense structure prevents heat transfer, enhancing energy efficiency.
4. Fire Safety:
• Rated as Euroclass A1 non-combustible, it helps compartmentalize spaces, reducing the risk of fire spread.
5. Moisture Resistance:
• Its non-hygroscopic properties prevent water absorption, eliminating the risks of damp, mould, or rot.

How Effective is the Rockwool RWA45 Acoustic Mineral Wool at Stopping Nuisance Noise?

The Rockwool RWA45 provides significant noise reduction benefits:

• Airborne Noise Reduction:
• Reduces noise levels by up to 3-4dB when fitted between joists or partition walls.
• Reverberant Noise Control:
• Reduces echo and reverberation by up to 8dB in ceiling constructions.
• High Acoustic Performance:
• The dense fibre structure ensures effective sound insulation, outperforming lighter insulation products such as loft rolls.

Where Can the Rockwool RWA45 Acoustic Mineral Wool Be Used?

The Rockwool RWA45 is versatile and suitable for:

• Residential Applications:
• Partition walls, ceilings, and floors to reduce noise transmission between rooms.
• Commercial Spaces:
• Offices, schools, and healthcare facilities for acoustic control and energy efficiency.
• Industrial Use:
• Acoustic panels, machinery enclosures, and offshore platforms for soundproofing and thermal insulation.
• Specialist Applications:
• Ships and offshore installations, thanks to its non-combustible certification by Lloyd’s Register of Shipping.
• BREEAM Projects:
• Its eco-friendly properties make it a preferred choice for sustainable construction.

How to Install the Rockwool RWA45 Acoustic Mineral Wool

Installing Rockwool RWA45 is straightforward:

1. Preparation:
• Measure and cut the slabs to fit the specific area.
• Ensure the surface is clean and dry.
2. Placement:
• Position the slabs between joists, studs, or in ceiling voids.
• For optimal soundproofing, combine with resilient bars or acoustic plasterboards.
3. Securing:
• Gently press the slabs into place to ensure a snug fit.
• No additional fixings are required as the dense structure supports itself.
4. Finishing:
• Install a suitable facing layer, such as plasterboard, to complete the soundproofing system.

What are the Benefits of Using the Rockwool RWA45 Acoustic Mineral Wool?

1. Superior Acoustic Performance:
• Effectively reduces airborne and reverberant noise, creating quieter environments.
2. Fire Safety:
• Euroclass A1 non-combustible rating ensures the highest level of fire resistance.
3. Thermal Efficiency:
• Enhances energy efficiency by reducing heat transfer.
4. Moisture Resistance:
• Water-repellent properties prevent damp, rot, and mould growth.
5. Eco-Friendly:
• Made from sustainable materials, it is fully recyclable and has no Ozone Depleting Potential (ODP).
6. Durability:
• Maintains performance throughout the building’s lifetime, requiring no maintenance.
7. Versatility:
• Suitable for a variety of applications, from residential to industrial settings.
8. Ease of Installation:
• Lightweight slabs are easy to handle and cut, simplifying installation.
9. Cost-Effectiveness:
• Provides high performance at a competitive price point, making it ideal for budget-conscious projects.

By choosing Rockwool RWA45 Acoustic Mineral Wool, you ensure superior soundproofing, thermal efficiency, and fire safety, all while contributing to a sustainable future.

Here are the main details for this product:

Dimensions:

1200mm x 600mm

Thickness: 50mm / 75mm / 100mm Options

Pack Size:

50mm - Pack of 9
75mm - Pack of 6
100mm - Pack of 4

Weight: TBC

Density: 45Kg

Coverage: sqm

Fire rating: Euroclass A1

Thermal Conductivity:

View Product Information Guide

Please contact our team if you have any questions on this product.

Looking for a complete soundproofing solution?

If your looking for soundproofing for a particular situation or application, then the best place to start is with our soundproofing solutions that cover walls, floors, ceilings and reducing echo. Select the relevant application below to find out more.

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Floor Solutions

Ceiling Solutions

Echo Solutions

Visit our Fitting Instructions section for more detailed instructions relating to your specific application.

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