// SPEC · Mineral Wool
Rock Wool Board 80 kg/m³ Medium Density External Wall Cladding
Rock Wool Board 80 kg/m³ medium-density, A1, λ=0.034 W/(m·K) at 25°C. Engineered for external thermal insulation composite systems (ETICS), rainscreen ventilated facade cladding, and industrial workshop exterior wall thermal lining.
// Key Features
- Medium density 80 kg/m³ provides surface rigidity enabling direct adhesive mortar and render coat application
- Lamellar fibre orientation perpendicular to board face significantly improves tensile adhesion bond strength
- Class A1 fire rating meets facade fire performance requirements for mid-rise and high-rise building codes globally
- Low water absorption ≤1.0 kg/m² ensures durable long-term performance in exposed external wall environments
// Technical Specifications
| Fire Class | A1 |
| Binder Content (%) | 3.5 |
| Bulk Density (kg/m³) | 80 |
| Max Service Temp (°C) | 600 |
| Thermal Conductivity at 25°C (W/m·K) | 0.034 |
// Applications
External thermal insulation composite system (ETICS) insulation boardRainscreen ventilated facade thermal backing panelConcrete frame perimeter wall external insulation layerIndustrial workshop exterior wall thermal cladding liningSteel structure metal deck sandwich panel infill board
// Quick Specs
Max Temperature600°C
Thermal Conductivity0.034 W/(m·K) at 25°C
Density80 kg/m³
StandardGB/T 25975
// Get Pricing
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