Last Updated: 2026-04-10 08:20:22
Rock Wool Board for External Wall Insulation
Density: 100kg/m³, 120kg/m³, 140kg/m³, 150kg/m³ (customizable 50–200kg/m³)
Thickness: 50mm, 60mm, 80mm, 100mm, 120mm (customizable 20–150mm)
Surface:Plain (unfaced), Aluminum foil facing, Kraft paper facing, Fiberglass mesh
Size: 1200mm×600mm, 1000mm×600mm (custom size available)
Product Overview
Our Rock Wool Board for External Wall Insulation is a premium building insulation material made from high-quality basalt and diabase, processed through high-temperature melting, fiber forming, and organic binder curing. It features outstanding fire resistance, thermal insulation, sound absorption, and structural stability, specially designed for external wall insulation systems, curtain wall insulation, and building energy-saving renovation projects. With strict quality control and complete international certifications, it ensures long service life and stable performance, perfectly meeting the insulation and fire protection requirements of commercial buildings, residential buildings, industrial plants, and other construction scenarios.
Key Features
- Excellent Fireproof Performance: Class A non-combustible material, high temperature resistance, effectively blocking fire spread, complying with global building fire protection standards (ASTM E119, EN 13501-1).
- Superior Thermal Insulation: Low thermal conductivity (≤0.040 W/(m·K) at 25℃), stable insulation effect, greatly reducing building energy consumption and operating costs.
- High Structural Strength: Compact fiber structure, good compression and tensile resistance, not easy to deform or crack during construction and long-term use.
- Moisture & Water Repellent: Optional waterproof facing and hydrophobic treatment (hydrophobic rate ≥99%), avoiding moisture absorption and mildew, maintaining insulation performance stability.
- Sound Absorption & Noise Reduction: Porous fiber structure effectively absorbs noise, improves indoor quietness and building comfort.
- Eco-Friendly & Durable: Non-toxic, odorless, anti-corrosion, anti-aging, service life up to more than 20 years, no pollution to buildings and environment.
Standard Specification
| PRODUCT | MB 40 | MB 50 | MB 60 | MB 80 | MB 100 | MB 120 |
| Density，kg/m3 | 40 | 50 | 60 | 80 | 100 | 120 |
| Thickness，mm | 50~150 | 40~150 | 40~250 | 25~250 | 25~200 | 25~150 |
| Length*width(mm) | 1200 x 600 | |||||
Main Performance and Technical Indicators
| Performance | MB 40 | MB 50 | MB60 | MB 80 | MB100 | MB120 | Unit | Standard |
| Thermal conductivity
( 25 ℃） |
≤0. 037 | W/(m •K) | GB/T 10295 | |||||
| Combustion performance | A1 | — | GB 8624 | |||||
| Melting Temperature | ≥1000 | ℃ | —- | |||||
| Surface Burning Properties | Smoke Spread < 25 , Flame Spread < 25 | — | ASTM E84 | |||||
| Acidity coefficient | ≥1.8 | — | GB/T 5480 | |||||
| Hydrophobicity | ≥99 | ％ | GB/T 10299 | |||||
| Mass moisture absorption rate | ≤0.5 | ％ | GB/T 5480 | |||||
| Short-term water absorption (partial immersion, 24h) | ≤0.2 | kg/m² | GB/T 30805 | |||||
| Dimensional stability | ≤0.5 | ％ | GB/T 30806 | |||||
| Corrosive | no corrosion | — | ASTM C665 | |||||
| Formaldehyde emission | ≤0.5 | mg/(kg•h) | GB/T 32379 | |||||
| Noise Reduction Coefficient | ≥0.80 | — | GB/T 18696 | |||||
Rock Wool Board for External Wall Insulation Product Specifications
| Item | Parameter Details |
|---|---|
| Density | 100kg/m³, 120kg/m³, 140kg/m³, 150kg/m³ (customizable 50–200kg/m³) |
| Thickness | 50mm, 60mm, 80mm, 100mm, 120mm (customizable 20–150mm) |
| Standard Size | 1200mm×600mm, 1000mm×600mm (custom size available) |
| Surface Treatment | Plain (unfaced) |
| Fire Rating | Class A non-combustible (ASTM E119, EN 13501-1) |
| Thermal Conductivity | ≤0.040 W/(m·K) (25℃) |
| Hydrophobic Rate | ≥99% |
| Certifications | CE, EN13162, SGS, ISO9001 |
Surface Options
- Plain Rock Wool Board: Bare fiber surface, suitable for external wall base insulation and plastering systems, easy for on-site cutting and construction.
Main Applications
- Residential building external wall external insulation system
- Commercial building curtain wall insulation and fire protection
- High-rise building fire isolation belt matching
- Building energy-saving renovation and old wall reconstruction
- Industrial plant external wall insulation and sound insulation
Our Advantages
- Stable Quality: Consistent batch quality, sample consistent with bulk goods, strict pre-shipment inspection.
- Complete Certifications: CE, EN13162, SGS, ISO9001 certified, smooth customs clearance and project acceptance.
- Flexible Customization: Support density, size, thickness and facing customization, meet personalized project needs.
- On-time Delivery: Large production capacity, short production cycle, guarantee delivery time for large and urgent orders.
- Professional Export Service: Standard export packaging, complete customs documents, full-process after-sales support.
Get a Free Quote Now!
Tell us your required density, thickness, size, facing and order quantity, we will provide the most competitive FOB/CIF price and detailed product catalog within 24 hours. Welcome to contact us for sample testing and factory inspection!
