Colored Rock Wool Board
Colored rock wool boards combine thermal insulation, acoustic control, and fire safety in a single solution. Their non-combustible nature ensures compliance with strict fire codes, while decorative colored facings eliminate the need for extra surface finishing. The material is dimensionally stable, moisture-resistant, and durable, providing a long service life with minimal maintenance. Its versatility allows applications in façades, roofing, partitions, and industrial insulation systems. Meeting global standards such as EN 13162 and EN 13501-1, colored rock wool boards are a sustainable, energy-efficient, and cost-effective choice for both commercial and residential projects.
Product Introduction
Rock wool fireproof sandwich panels, crafted from high - strength components, are outstanding building materials. Their Class A non - combustible rock wool cores offer exceptional fire resistance, along with remarkable heat - insulating and sound - insulating capabilities. This makes them suitable for a wide array of applications, including industrial plants, civil buildings, public facilities, and clean workshops. These panels are lightweight yet strong, easy to install, environmentally friendly, and durable. As such, they are the perfect choice for fireproof partitioning, energy conservation, and heat retention purposes.
Colored rock wool board is a high-performance insulation and cladding material combining the thermal and acoustic properties of mineral wool with decorative colored surfaces. It is widely used in building facades, interior partitions, roofing systems, and fire-resistant enclosures. This article explores its engineering principles, regulatory standards, installation practices, and operational considerations to guide designers, engineers, and contractors.
Engineering Principles
1. Material Composition
Core: Basalt-derived rock wool fibers with density ranging from 80–180 kg/m³.
Surface Treatment: Colored inorganic coatings, aluminum foil, or glass-fiber reinforced facing.
Binders: Low-formaldehyde or eco-friendly resins to ensure dimensional stability.
2. Thermal & Acoustic Performance
Thermal Conductivity: λ = 0.033–0.040 W/m·K, compliant with EN 13162 insulation standards.
Sound Absorption: NRC up to 0.85, suitable for acoustic wall panels and ceilings.
Fire Resistance: Classified as Euroclass A1 (non-combustible) per EN 13501-1 and ASTM E136.
3. Mechanical Strength
Compressive Strength: ≥ 40 kPa for façade applications.
Dimensional Stability: Minimal shrinkage under temperature fluctuations, ensuring long-term performance.
Regulatory and Industry Standards
EN 13162: Thermal insulation products for buildings (mineral wool).
EN 13501-1 / ASTM E84: Fire classification and flame spread ratings.
ISO 9001 / ISO 14001: Quality and environmental management during manufacturing.
GB/T 25975 (China): Rock wool insulation board standard.
Operational Considerations
Installation: Boards should be mechanically fixed or bonded with adhesives suitable for mineral wool, ensuring tight joints to prevent thermal bridging.
Moisture Resistance: Though rock wool is hydrophobic, protective coatings or ventilated façades are recommended in high-humidity zones.
Durability: Service life exceeds 25 years with proper detailing and weather protection.
Applications: External wall insulation systems (EIFS), partition walls, roof decks, industrial equipment insulation.
Example Performance Data
A 100 mm colored rock wool board with density 120 kg/m³ provides:
Thermal resistance R ≈ 3.0 m²·K/W
Sound reduction index up to 45 dB
Fire resistance exceeding 2 hours (when integrated in wall assemblies).
Frequently Asked Questions (FAQ)
Q1: What is the difference between colored rock wool board and regular rock wool?
Colored versions include decorative or protective facings, reducing the need for additional finishing layers.
Q2: Can it be used outdoors?
Yes, with weather-resistant coatings or ventilated façade systems.
Q3: Is it environmentally friendly?
Rock wool is recyclable and often made from natural basalt, complying with green building certifications.
Q4: What thickness is typically used?
External wall insulation often uses 50–150 mm, depending on thermal requirements.
