A1 Fireproof Rigid Rock Wool Board – Exterior Wall & Curtain Wall Insulation, High Density, Non-combustible, Sound Absorbing
1. Product Overview
Conventional insulation falls short on fire safety, exterior wall crack resistance and outdoor durability for global energy-saving, curtain wall and industrial projects. Our high-density rigid rock wool board is produced from premium basalt and diabase via high-temperature fiber spinning, eco-resin bonding and high-pressure forming to match international construction norms. Denser and dimensionally stable than soft low-density rock wool, it resists deformation, powdering, peeling and UV damage for exterior exposure. Formaldehyde-free and zero-VOC compliant with global green codes, it combines A1 fireproofing, thermal insulation, sound absorption, waterproof and anti-corrosion traits. Customizable for global projects across Europe, the Middle East and Southeast Asia, it serves exterior walls, curtain wall fire stops, indoor acoustics and industrial equipment insulation.
2. Core Engineering Advantages
High-pressure Compact Build for Global ConstructionHigh-pressure cured interlocked fibers deliver flat finish and tight dimensional tolerance matching international construction standards. Great compression resistance prevents hollowing, crack and delamination, fitting standard overseas thin-coat plaster and mesh installation for exterior wall systems.A1 Fire Rating per Global Fire CodesPure inorganic fiber earns ISO 1182 certification and EN 13501-1 A1 rating. No open flame, molten drip or toxic smoke develops during combustion, restricting flame spread as fire barrier material for curtain walls and partition walls to pass international fire inspection smoothly.Low Thermal Conductivity for Energy EfficiencyMicroporous structure holds heat with conductivity ≤0.040 W/(m·K), curbing HVAC loss and satisfying low-carbon building requirements for all climate zones worldwide.Premium Noise Reduction for Commercial & Industrial UseThick dense fibers eliminate low-frequency mechanical vibration and ambient echo, meeting acoustic benchmarks for offices, cinemas and production plants.All-climate Weather & Moisture ResistanceFull hydrophobic modification cuts water absorption to avoid condensation and mold. It withstands long-term UV, rainfall and extreme temperature swings with solid anti-aging, acid and alkali resistance, suitable for humid coastal, frigid and corrosive industrial settings.
3. Standard Technical Specifications
Density: 80/100/120/140/160kg/m³Thickness: 40/50/60/75/100mmStandard dimension:1200×600mm | bespoke sizes availableFire Grade: International A1 Non-combustibleThermal Conductivity: ≤0.040 W/(m·K)Working Temp: -40℃～650℃Highlights: Crack-proof, weatherproof, A1 fire resistant, energy-saving, formaldehyde-free
4. Main Application Scenarios
Residential Energy-saving WorksExterior and roof insulation plus fire barrier setup for overseas high-rises and villas, ideal for new build and retrofit to lift project acceptance.Curtain Wall & Steel Structure ProjectsCurtain wall fire stopping for malls, offices and hotels; wall & roof insulation for steel workshops to cover fireproof, thermal and acoustic demands.Commercial Acoustic RenovationPartition and ceiling infill for meeting rooms, audiovisual spaces and streaming rooms to upgrade indoor sound comfort.Industrial Insulation ProjectsThermal and fire protection for pump, fan and machinery rooms alongside high-temperature industrial equipment wrapping.
5. FAQ
Q1: Why select rigid high-density rock wool over ordinary grades for overseas jobs?A1: Loose low-density rock wool easily powders and cracks, only for hidden indoor filling. Our dense rigid variant adapts to exterior plaster and outdoor exposure per international specs, cutting site rework and boosting inspection pass rate.
Q2: Does hydrophobic finish ruin plaster adhesion?A2: Water-repellent treatment only blocks liquid water while keeping needed surface roughness for strong mortar bonding without hollowing or split.
Q3: Stable performance under sub-zero cold?A3: Works steadily from -40℃ to 650℃ with no brittle shrinkage, perfect for Northern Europe and Russia’s outdoor construction.
Q4: Key curtain wall material requirements globally?A4: International curtain walls require A1 fireproof, stable dimension, UV and anti-powder performance, all fully covered by our rock wool board.
Q5: Specification selection guide?A5: 80–100kg/m³ /40–50mm: indoor hidden & acoustic insulation;120–140kg/m³ /50–75mm: regular external wall;140–160kg/m³: high-rise facade, exposed curtain wall and high-temperature industry. For fire-rated HVAC duct insulation, we recommend Phenolic Foam Board.
6. Product Summary
Custom-built for international construction and strict outdoor operating conditions, high-density rigid rock wool fixes traditional insulation’s flaws including cracking, pulverization and poor weather endurance. Certified against multiple global standards, it unites A1 fire safety, low heat transfer, effective sound blocking and all-weather durability. Complete sizes plus OEM customization support residential retrofit, curtain wall firestop, steel factory and industrial equipment projects globally, delivering fewer field repairs and higher acceptance as preferred inorganic insulation worldwide.
