Color Steel Rock Wool Board
Thermal Insulation: Excellent energy-saving performance, maintaining comfortable indoor temperatures.
Fire Resistance: Rock wool core resists fire, enhancing building safety.
Sound Insulation: Effective noise reduction, improving acoustics.
Durability: Strong, weather-resistant, and long-lasting.
Easy Installation: Lightweight, quick to install, and low-maintenance.
Product Introduction
Rock wool fireproof sandwich panels, made of high - strength parts, are top - tier building materials. With a Class A non - combustible rock wool core, they offer great fire resistance. They also provide good heat insulation, sound - absorption, and are lightweight, strong, easy to install, eco - friendly, and durable. Suitable for industrial plants, civil buildings, public facilities, and clean workshops, they're ideal for fireproof isolation, energy - saving, and heat - preservation.
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, |
Color steel rock wool board is a high-performance, composite building material widely used for thermal insulation, fire protection, and acoustic control in industrial and commercial construction. Engineered by bonding a core of rock wool (mineral wool) between color-coated steel sheets, this sandwich panel delivers exceptional durability, structural rigidity, and environmental resistance.
This SEO-optimized article provides a deep technical dive into the composition, manufacturing process, engineering principles, regulatory standards, and installation best practices for color steel rock wool boards.
What Is a Color Steel Rock Wool Board?
A color steel rock wool board is a prefabricated sandwich panel consisting of:
Core Material: Rock wool (mineral wool made from basalt)
Outer Layers: Pre-coated galvanized steel sheets (PPGI)
Bonding Method: High-adhesion polyurethane or phenolic adhesives under heat and pressure
Surface Treatment: Polyester, PVDF, or SMP paint for corrosion resistance
The combination results in a panel that is fire-resistant, thermally stable, sound-insulating, and suitable for envelope construction, partitioning, and roofing.
Core Features and Engineering Advantages
| Property | Performance |
|---|---|
| Fire Resistance | ≥2 hours (Class A, non-combustible) |
| Thermal Conductivity | 0.035–0.045 W/m·K |
| Sound Insulation (Rw) | ≥25 dB (depending on thickness) |
| Density of Rock Wool Core | 80–150 kg/m³ |
| Surface Steel Thickness | 0.4–0.8 mm (each side) |
| Overall Panel Thickness | 50 mm – 200 mm |
| Compressive Strength | ≥0.15 MPa |
| Bending Strength (EN 14509) | ≥0.5 kN/m² (span dependent) |
Engineering Principles Behind the Design
The structural and insulation performance of color steel rock wool board is governed by the sandwich panel engineering model, which follows these principles:
Load Distribution: The steel face sheets resist bending stresses, while the rock wool core provides shear resistance.
Fireproofing: Rock wool, made from melted basalt, is non-combustible and retains dimensional stability up to 1000°C.
Thermal Insulation: The fine fiber structure of mineral wool traps air, reducing heat conduction.
Acoustic Control: The porous structure dissipates sound energy through internal friction.
Corrosion Resistance: Pre-painted galvanized steel resists moisture, UV radiation, and chemical attack.
Applicable Industry Standards and Certifications
Material & Performance Standards:
EN 13501-1: Fire classification of construction products (Class A1/A2)
EN 14509: Self-supporting double skin metal faced insulating panels
GB/T 23932-2009: Chinese standard for sandwich panels with metal skins
ASTM C665: Specification for mineral-fiber blanket insulation
ISO 1182 / ISO 1716: Reaction to fire testing
Environmental and Safety Compliance:
ISO 9001: Quality management systems
ISO 14001: Environmental management
RoHS/REACH: Compliance for hazardous substances
FM Approved / CE Marking: Where required for export or specialized applications
Common Applications
| Sector | Use Case |
|---|---|
| Industrial Plants | Insulated walls and ceilings |
| Cleanrooms | Partition panels with anti-static coatings |
| Warehouses | Roof and wall cladding with fire safety |
| Commercial Spaces | Acoustic partitions in shopping centers |
| Public Infrastructure | Transport hubs, schools, hospitals |
Manufacturing Process Overview
Preparation of Steel Coils: Galvanized and color-coated coils are cut and cleaned.
Rock Wool Cutting: Sliced to fit the specified panel thickness and density.
Adhesive Application: Heat-resistant glue applied to both steel and core.
Lamination: High-pressure roll forming compresses the layers together.
Edge Treatment: Tongue-and-groove or flat joint options.
Curing and Cutting: Final product cured, cooled, trimmed, and packaged.
Installation Guidelines and Best Practices
Substrate Requirements:
Steel or concrete framework with level support
Structural fasteners rated for wind load and seismic stress
Panel Installation:
Use mechanical lifting devices for long panels
Align using tongue-and-groove or interlock edges
Seal joints with non-combustible silicone sealant
Fix with self-drilling screws with EPDM washers at specified intervals
Operation & Maintenance:
Inspect regularly for paint peeling, joint movement, or fastener corrosion
Clean using non-abrasive detergent; avoid acidic solutions
Retouch damaged coatings to prevent steel corrosion
Environmental and Lifecycle Considerations
Rock wool core is made from natural basalt and slag, offering:
High recyclability
Zero ozone depletion potential
Excellent lifecycle carbon performance
Color-coated steel can be recycled fully, making the product a strong candidate for LEED or BREEAM certification in green building projects.
Frequently Asked Questions (FAQs)
Q1: What makes rock wool better than PU or EPS core materials?
A: Rock wool offers superior fire resistance, maintains insulation under high temperatures, and provides better sound absorption than polyurethane (PU) or expanded polystyrene (EPS).
Q2: Can color steel rock wool boards be used in cold climates?
A: Yes. With thermal conductivity as low as 0.035 W/m·K, these boards are excellent for cold storage, northern climates, and energy-efficient construction.
Q3: How long do these panels last?
A: With proper installation and minimal maintenance, 25–35 years of service life is typical under industrial conditions.
Q4: Are there eco-friendly variants available?
A: Yes. Panels using bio-soluble rock wool, low-VOC adhesives, and recycled steel are increasingly available.
Q5: What fire ratings are typically achieved?
A: When tested to EN 13501-1, most panels meet Class A2-s1, d0, indicating excellent fire performance with minimal smoke and no flaming droplets.
