Class A1 non-combustible Fireproof Rock Wool Lamella – Fire Barrier for Exterior Wall Insulation
Our Class A1 non-combustible fireproof rock wool lamella is specially engineered as a fire barrier for external wall insulation systems, meeting the highest national standard for non-combustible materials (Class A1). Made from high-quality basalt and processed into strip form, it offers Class A1 fire resistance, high tensile strength, and excellent compatibility with organic insulation materials. As a fire barrier for combustible insulation systems, it effectively stops flame spread and controls fire development, providing lasting fire safety for high-rise buildings and public facilities.
- Fire barriers in exterior wall insulation systems for high-rise and super-high-rise buildings
- Floor-by-floor fire stops for organic insulation materials (EPS, XPS, PU, etc.)
- Fire barriers around window and door openings
- Insulation systems near fire compartments and refuge floors
- Public buildings with strict fire safety requirements (hospitals, schools, shopping malls, etc.)
| Parameter | BR100 | BR120 |
|---|---|---|
| Density (kg/m³) | 100 | 120 |
| Tensile Strength (kPa) | ≥100 | ≥120 |
| Thermal Conductivity (W/m*K, 25°C) | ≤0.045 | |
| Shear Strength (kPa) | ≥20 | |
| Shear Modulus (MPa) | ≥1 | |
| Combustibility | Class A1 non-combustible | |
| Acidity Coefficient | ≥2.0 | |
| Hydrophobic Rate (%) | ≥99.0 | |
| Water absorption (kg/m², short term, partial immersion) | ≤0.4 | |
| Mass moisture absorption (%) | ≤0.3 | |
Meets Class A1 non-combustible material standard. As a fire barrier for combustible insulation, it cuts off flame propagation paths along exterior walls, controls fire development, and buys crucial time for firefighting.
High vertical tensile strength ensures secure bonding with the substrate—no falling, no hollowing over time—guaranteeing lasting and stable fire barrier performance.
Physical properties are well-matched with organic insulation materials (EPS, XPS, PU, etc.), with similar thermal expansion coefficients, preventing cracking or detachment due to temperature changes and ensuring overall system safety.
Uniform dimensions and precise cutting allow for seamless integration with organic insulation boards on-site, improving installation efficiency and quality.
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