Last Updated: 2026-03-26 09:28:40
Rock Wool Board for Roof Insulation
Density: 80kg/m³, 100kg/m³, 120kg/m³ (customizable 50–160kg/m³)
Thickness:50mm, 75mm, 100mm, 120mm (customizable 30–150mm)
Standard Size:1200mm×600mm, 1000mm×600mm (custom size available)
Surface Treatment: Plain (unfaced), Aluminum foil facing, Kraft paper facing
Waterproof Roof Insulation Panel with Heat Reflection & Class A Fireproof
Product Overview
Our Rock Wool Board for Roof Insulation is specifically engineered to meet the rigorous demands of roof thermal insulation. Manufactured from high-quality basalt via a high-temperature melting process, this board exhibits exceptional hydrophobicity, heat reflection and fire resistance. It is designed to withstand extreme weather conditions, including heavy rain, UV radiation and high temperatures, making it the ideal choice for both flat roof and sloped roof systems. With stable thermal performance and easy installation, it effectively reduces energy consumption and extends the lifespan of building structures.
Key Features
- Superior Waterproof & Moisture Proof: Advanced hydrophobic treatment (hydrophobic rate ≥99%), preventing water absorption and mold growth, ensuring insulation performance remains stable even in rainy environments.
- Excellent Heat Reflection: Integrates a reflective layer (optional aluminum foil facing) to block solar radiation, significantly reducing roof surface temperatures and lowering indoor cooling costs.
- Class A Fireproof Rating: Non-combustible material that effectively prevents the spread of fire, meeting international fire safety standards (ASTM E119, EN 13501-1).
- High Compressive Strength: Dense fiber structure provides strong load-bearing capacity, avoiding roof collapse or deformation under heavy snow or wind loads.
- Weather Resistance: Resists aging, acid rain corrosion and UV rays, ensuring long-term service life (over 20 years).
- Easy Installation: Lightweight yet rigid design, simple for cutting and fixing, reducing construction time and labor costs.
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*widt，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 Roof Insulation Product Specifications
| Item | Parameter Details |
|---|---|
| Density | 80kg/m³, 100kg/m³, 120kg/m³ (Customizable 50-160kg/m³) |
| Thickness | 50mm, 75mm, 100mm, 120mm (Customizable 30-150mm) |
| Standard Size | 1200mm×600mm, 1000mm×600mm (Custom size available) |
| Surface Treatment | Aluminum Foil (Best selling), Plain |
| Thermal Conductivity | ≤0.040 W/(m·K) |
| Fire Rating | Class A (Non-combustible) |
| Water Absorption | ≤1.0% (by volume) |
| Certifications | CE, EN13162, SGS, ISO9001 |
Surface Options
- Aluminum Foil Faced Rock Wool Board: The most popular export option. It provides excellent moisture proofing and reflects radiant heat, perfect for exposed roof systems.
- Plain Rock Wool Board: Bare fiber surface, designed for use as under-layer insulation with a separate waterproof membrane layer.
Main Applications
- Commercial building flat roof insulation
- Industrial workshop & warehouse roof thermal & fireproofing
- Residential house sloped roof insulation
- Steel structure roof heat insulation
- Roof fire isolation belt construction
Why Choose Us?
- Professional Roof Solution: Customized density and facing options to meet different roof load and climate requirements.
- Export Standard Packaging: Strong pallets with waterproof film to ensure zero damage during sea transportation.
- Guaranteed Quality: Consistent batch quality, sample confirmed before mass production.
- One-stop Service: Provide complete technical drawings, installation guides and all necessary export documents.
Get A Free Quote Now!
Tell us your required thickness, density, facing type and order quantity. We will offer the most competitive FOB/CIF price and delivery time within 24 hours! Welcome to visit our factory and test the samples.