Rock Wool Acoustic Panels
Fire Resistance: Class A non-combustible (basalt-based), prevents fire spread.
Thermal Insulation: Low thermal conductivity, reduces heat transfer, saves energy.
Sound Insulation: Porous structure absorbs sound, reduces noise.
Corrosion Resistance: Chemically stable, acid/alkali-resistant, long-lasting.
High Compressive Strength: Dense structure, load-bearing suitable.
Product Introduction
Rock Wool Acoustic Panels are outstanding building materials. Crafted from high - quality materials, they possess remarkable acoustic insulation, heat insulation, and fireproof properties. The Class A non - combustible rock wool core not only offers excellent fire resistance but also serves as an efficient sound - absorbing medium, effectively reducing noise transmission.
These panels are highly adaptable and suitable for a wide range of applications, including concert halls, recording studios, theaters, office buildings, and residential spaces. Their lightweight nature makes them easy to handle and install, while the robust structure ensures long - term durability. In addition, they are environmentally friendly, contributing to sustainable building practices. Whether aiming to create a quiet working environment, a high - quality audio space, or enhance the overall acoustic performance of a building, Rock Wool Acoustic Panels are the ideal choice for noise reduction, energy conservation, and maintaining a comfortable indoor climate.
Product Specifications
Effective width | Wall panel: 950mm |
Roof panel: 960mm | |
Material | Color Steel Sheet |
Rock wool board | |
Structure | Upper and lower layer: color steel sheet |
Middle layer: Rock wool board | |
Thickness | Color steel sheet: 0.5~0.8mm |
Rock wool board: 50mm, 75mm, 100，150mm | |
Rock wool Density | 120kg/m³ |
Lifetime | 20~35 years |
Features | Heat Insulation, light weight, quick installation,waterproof, fireproof, soundproof, energy-saving,environmental friendly, |
Application Areas
Industrial plants: used for walls and roofs, providing insulation, fire protection, and sound insulation.
Warehouses: suitable for the walls and roofs of large warehouses to improve insulation effects.
Cold storage: used for cold storage walls, with excellent insulation performance.
Public buildings: such as gymnasiums, exhibition halls, etc., to meet fire protection and sound insulation requirements.
Temporary buildings: such as temporary buildings on construction sites, quick installation and reusable.
Lap Way
Sandwich panels can be overlapped using a variety of techniques. One approach is seamless overlapping with concealed nails, which results in a smooth, unblemished surface. Alternatively, 20MM and 10MM seam overlaps, also with concealed nails, offer distinct appearances in terms of how visible the joints are. Another favored method is the tongue - and - groove overlap. This interlocking design not only guarantees a firm connection but also creates an extremely tight seal between the panels, enhancing both the structural integrity and the aesthetic appeal of the installation.
Rock Wool Acoustic Panels are high-performance sound insulation solutions engineered for acoustic control, thermal resistance, and fire safety in a wide range of commercial, industrial, and residential environments. Manufactured from mineral fibers derived from basalt rock, these panels provide exceptional sound absorption while meeting stringent fire-resistance and sustainability standards.
This article presents a technically robust and SEO-optimized overview of Rock Wool Acoustic Panels, covering their composition, acoustic performance, engineering principles, industry applications, regulatory compliance, and installation guidelines.
What Are Rock Wool Acoustic Panels?
Rock Wool Acoustic Panels are rigid or semi-rigid boards composed of melted volcanic rock (typically basalt or diabase) spun into fine fibers and bonded using thermosetting resins. These panels are engineered with a high Noise Reduction Coefficient (NRC), making them ideal for absorbing airborne sound and reducing reverberation in interior spaces.
Core Features:
High NRC rating (0.8–1.0 depending on thickness and density)
Excellent fire resistance (Class A / non-combustible)
Low thermal conductivity (0.035–0.045 W/m·K)
Moisture and mildew resistant
Recyclable and eco-friendly
Materials and Composition
| Component | Description |
|---|---|
| Base Material | Basalt rock melted at ~1500°C, spun into fibers |
| Binder | Phenol-formaldehyde or bio-based resin (low-VOC) |
| Facing (Optional) | Glass cloth, aluminum foil, or acoustic fabric for enhanced performance |
| Density Range | 40 – 120 kg/m³ depending on the application |
Acoustic Performance Metrics
| Specification | Typical Value |
|---|---|
| Noise Reduction Coefficient (NRC) | 0.85 – 1.00 (for 50mm panel) |
| Sound Transmission Class (STC) | 45 – 60 (with wall assembly) |
| Airflow Resistance | 15,000 – 25,000 Rayls/m |
| Application Frequency Range | 125 Hz – 4000 Hz |
Engineering Advantages
1. Superior Sound Absorption
Ideal for reducing reverberation time (RT60) in large volumes.
Effective across low, mid, and high-frequency bands.
2. Thermal Insulation
Low thermal conductivity makes it suitable for combined acoustic + thermal applications.
3. Non-Combustibility
Classified as A1 (EN 13501-1) or Class 0 (BS 476 Part 6 & 7).
Can withstand temperatures above 1000°C without melting or emitting toxic fumes.
4. Moisture Resistance and Dimensional Stability
Hydrophobic treatment ensures low water absorption.
Retains shape and density over time, even in high-humidity zones.
5. Sustainability
Made from natural volcanic rock.
Complies with LEED, BREEAM, and WELL building standards.
Industry Applications
| Sector | Use Case |
|---|---|
| Commercial Buildings | Auditoriums, theaters, meeting rooms, call centers |
| Industrial Facilities | Equipment enclosures, compressor rooms, generator housings |
| Offices & Institutions | Acoustic ceilings, wall panels, open-plan space partitions |
| Broadcast & Recording | Music studios, control rooms, radio stations |
| Educational Buildings | Classrooms, lecture halls, libraries |
| Residential | Home theaters, shared walls, multi-family dwellings |
Compliance and Certifications
| Standard | Requirement |
|---|---|
| EN 13501-1 | Fire Classification: A1 (non-combustible) |
| ASTM C423 / ISO 354 | NRC testing – sound absorption coefficients |
| BS EN ISO 11654 | Weighted Sound Absorption Class A–E |
| ISO 140-3 / ASTM E90 | STC values for assemblies |
| RoHS / REACH | Chemical safety compliance |
| LEED / BREEAM / WELL Credits | Indoor air quality and recycled content contributions |
Installation Considerations
1. Wall and Ceiling Mounting
Directly fixed to walls or suspended grid ceilings.
Use mechanical fasteners with insulation pins or adhesive anchors.
Edges may be framed with aluminum trims for aesthetics and protection.
2. Protective Facing
For visible applications, panels are often covered in:
Acoustic fabric for aesthetic rooms
Glass fiber tissue for hidden installations
Aluminum foil for industrial or HVAC ducts
3. Panel Thickness Guidelines
| Application | Recommended Thickness |
|---|---|
| Studio or Theater | 50 – 100 mm |
| Office Partition | 25 – 50 mm |
| Equipment Enclosure | 75 – 100 mm |
| Industrial Acoustic Wall | 50 – 150 mm |
Common Issues and Mitigation
| Issue | Recommendation |
|---|---|
| Panel sagging in ceilings | Use cross-t-grid systems or edge stiffeners |
| Moisture absorption in damp areas | Apply vapor barrier facing (aluminum foil or HDPE) |
| Fiber shedding | Use encapsulated panels or fabric-wrapped options |
FAQs
Q1: Are Rock Wool Acoustic Panels safe for indoor air quality?
A: Yes. When manufactured to ISO/EN standards, they emit low to negligible VOCs and are compliant with GREENGUARD or Eurofins Indoor Air Comfort certifications.
Q2: What’s the difference between NRC and STC?
A: NRC measures how well a material absorbs sound within a room (reverberation), while STC measures how well a wall assembly blocks sound transmission between rooms.
Q3: Can these panels be used outdoors?
A: Yes, when encapsulated or faced with weather-resistant coatings, Rock Wool Panels can be used in exterior wall cavities or duct wraps.
Q4: Do rock wool panels attract pests or degrade over time?
A: No. They are inorganic, do not support microbial growth, and retain their properties for 20+ years.
Q5: Can they be cut on-site?
A: Yes, using a serrated knife or insulation saw. Always use protective gear to minimize fiber dust exposure.
Conclusion
Rock Wool Acoustic Panels are a technically advanced, fire-safe, and environmentally responsible solution for modern acoustic challenges. Whether in sound studios, factories, or classrooms, these panels deliver exceptional performance across the board—sound absorption, thermal insulation, fire safety, and durability.
