Unlike conventional
glass wool or
fiberglass products,
fireproof black rock wool board offers a unique combination of density, rigidity, and fire performance that makes it the material of choice for demanding commercial, residential, and industrial projects.
Core Specifications
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Property
|
Value
|
|
Dimensions (L × W)
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1200 × 600 mm / 2400 × 1200 mm
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|
Thickness
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50–200 mm
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Density
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80–200 kg/m³
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|
NRC (Noise Reduction Coefficient)
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≥ 0.6
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Thermal Conductivity (25°C)
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≤ 0.039 W/
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Fire Rating
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Euroclass A1 / ASTM E84 Class A (Flame Spread 0–25)
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Service Temperature
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-50°C to +750°C
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Melting Point
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> 1000°C
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These specifications make fireproof black rock wool board one of the most versatile rock wool insulation products available for interior wall, partition wall, exterior wall, and ceiling assemblies.
Superior Acoustic Performance: Why NRC Matters
The Noise Reduction Coefficient (NRC) is the industry-standard metric for measuring a material's sound absorption capability across the frequency range most relevant to human speech and common building noise (250 Hz–2000 Hz). With an NRC ≥ 0.6, fireproof black rock wool board absorbs at least 60% of incident sound energy—making it a highly effective sound barrier and sound dampening solution.
How It Works
Soundproof rock wool functions through a combination of mechanisms:
1）Porous Absorption: The dense, interlocking fiber matrix converts sound energy into heat through viscous friction as air particles move through the material.
2）Resonance Damping: The rigid board structure resists vibration transmission, reducing structure-borne noise transfer through partition walls and floors.
3）Cavity Insulation: When installed within wall cavities or above suspended ceilings, fireproof black rock wool board eliminates air gaps that would otherwise allow sound flanking paths.
For projects requiring enhanced STC (Sound Transmission Class) ratings, combining fireproof black rock wool board with mass-loaded barriers and resilient channels can achieve STC ratings of 50–60+, exceeding the requirements for luxury hotels, conference centers, and recording studios.
Fire Safety: The Non-Negotiable Advantage
While acoustic performance drives specification decisions, fire safety is the factor that ultimately protects lives and assets. Fireproof black rock wool board achieves Euroclass A1 and ASTM E84 Class A ratings—the highest possible classifications for non-combustible building materials.
Why This Matters for Your Market
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Southeast Asia: Tropical climates with high humidity demand materials that won't degrade or lose fire performance over time. Rock wool insulation is naturally hydrophobic and dimensionally stable.
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Middle East: Extreme temperatures and stringent fire codes (such as the UAE Fire and Life Safety Code) require insulation that maintains integrity under thermal stress. With a melting point exceeding 1000°C, fireproof black rock wool board outperforms organic alternatives.
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South America: Rapid urbanization and evolving building regulations in markets like Brazil and Colombia are increasingly mandating fire-rated materials for mid-rise and high-rise construction.
Unlike polyester acoustic panels, which are combustible and can release toxic smoke during a fire, fireproof black rock wool board does not burn, melt, or emit harmful gases—providing critical time for evacuation and fire suppression.
Fireproof Black Rock Wool Board vs. Competing Materials
|
Feature
|
Fireproof Black Rock Wool Board
|
Glass Wool / Fiberglass
|
Polyester Acoustic Panel
|
|
Fire Rating
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Euroclass A1 / ASTM E84 Class A
|
Euroclass A1 / A2
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Combustible (Class B/C)
|
|
NRC
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≥ 0.6
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0.5–0.9
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0.6–0.95
|
|
Density
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80–200 kg/m³
|
10–100 kg/m³
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20–50 kg/m³
|
|
Compressive Strength
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High
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Low–Medium
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Very Low
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Hydrophobic Rate
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High
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Medium
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Low
|
|
Service Temp.
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-50°C to +750°C
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-30°C to +250°C
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-20°C to +80°C
|
|
Durability
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50+ years
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30–40 years
|
10–15 years
|
|
Installation
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Rigid, easy cut
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Flexible, sags over time
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Fragile, requires framing
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Key Differentiators
1. Density & Acoustic Performance: While glass wool can achieve comparable NRC values in low-density formulations, its flexibility makes it prone to sagging and compression in vertical wall cavity applications—compromising long-term soundproofing performance. Fireproof black rock wool board maintains its thickness and density for the lifetime of the building.
2. Fire Resistance Under Real-World Conditions: Both rock wool and glass wool are non-combustible, but rock wool's higher melting point (~1000°C+ vs. ~600°C for glass wool) provides superior performance in extended fire scenarios—critical for exterior wall applications where facade fires can reach extreme temperatures.
3. Moisture & Mold Resistance: The high hydrophobic rate of fireproof black rock wool board prevents water absorption in humid climates, eliminating the mold and degradation risks associated with polyester acoustic panels and untreated fiberglass.
Primary Applications in Building Acoustics
1. Interior Wall & Partition Systems
In open-plan offices, hotels, hospitals, and residential towers, soundproof rockwool insulation installed within partition walls dramatically reduces airborne noise transmission between adjacent spaces. The rigid board format allows for friction-fit installation between metal or timber studs without additional fasteners, accelerating construction schedules.
Recommended Specification: 100 mm thick, 100–140 kg/m³ density board for standard STC 45–50 partitions.
2. Exterior Wall Insulation
As part of a building envelope system, fireproof black rock wool board provides simultaneous thermal insulation, acoustic buffering, and fire protection. When installed behind rainscreen cladding or within curtain wall cavities, it reduces external noise ingress (traffic, HVAC equipment, aircraft) while meeting the most stringent fire-rated facade requirements.
Recommended Specification: 50–100 mm thick, 80–120 kg/m³ density board with optional aluminum foil facing for enhanced vapor control.
3. Ceiling & Suspended Ceiling Systems
Exposed black rock wool board is increasingly specified for suspended ceiling grids in commercial interiors, auditoriums, and industrial facilities. The dark color eliminates the need for additional finishing, while the high NRC value controls reverberation and echo. For sound dampening in mechanical rooms, thicker boards (150–200 mm) can reduce equipment noise by 10–15 dB.
Recommended Specification: 50 mm thick, 80–100 kg/m³ density board for standard office ceilings; 100–150 mm for high-performance acoustic environments.
Why Source Fireproof Black Rock Wool Board from a Reliable Manufacturer?
Beyond material performance, successful project delivery depends on supply chain reliability. When specifying
rock wool insulation for international projects across Southeast Asia, the Middle East, and South America, consider these critical sourcing factors:
1. High Hydrophobic Rate
Our
fireproof black rock wool board features advanced water-repellent treatment, ensuring performance stability in tropical and coastal environments where humidity levels regularly exceed 80%.
2. Easy Installation
The rigid board format is engineered for clean, accurate cutting with standard insulation knives. Pre-cut sizes (1200 × 600 mm and 2400 × 1200 mm) minimize on-site waste and labor time, reducing overall installation costs by up to 20% compared to flexible roll products.
3. Fully Customizable
Beyond standard dimensions, we offer custom thicknesses (50–200 mm), densities (80–200 kg/m³), and facing options (aluminum foil, black glass tissue, or unfaced) to meet specific project requirements and local building codes.
4. Fast Global Delivery
With streamlined production and logistics networks serving Southeast Asia, the Middle East, and South America, we ensure rapid turnaround from order confirmation to port delivery—keeping your construction timeline on track.
Sustainability & Green Building Compliance
Rock wool insulation is inherently sustainable. Manufactured from abundant natural basalt rock and containing up to 50% recycled content, fireproof black rock wool board contributes to LEED, BREEAM, and local green building certifications. Its 50+ year service life eliminates the need for replacement, reducing lifecycle environmental impact compared to shorter-lived alternatives.
The material is also chemically inert, non-corrosive to metal components, and resistant to pests and rodents—further reducing maintenance requirements and long-term costs.
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