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Class A1 non-combustible Fireproof Rock Wool – Exterior Wall Insulation

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Class A1 non-combustible Fireproof Rock Wool – Exterior Wall Insulation

Density : 120 kg/m³, 140 kg/m³

MOQ : 1 container.

Combustibility : Class A1 non-combustible

Hydrophobic Rate : ≥99.0%

Acidity Coefficient : ≥2.0

Place of Origin : china

Payment Terms : L/C,T/T

Tensile Strength : ≥7.5 / 10 kPa, ≥10 / 15 kPa

Thermal Conductivity : ≤0.038 W/m*K, ≤0.040 W/m*K

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Class A1 Non-Combustible Fireproof Rock Wool – Exterior Wall Insulation

Product Overview

Our Class A1 non-combustible fireproof rock wool board is specially engineered for external wall insulation systems, meeting the highest national standard for non-combustible materials (Class A1). Made from high-quality basalt through advanced melting, fiberizing, and curing processes, it offers exceptional fire safety and performance characteristics.

Key Features

Class A1 non-combustibility
No toxic fumes during fire
Stable physical-chemical properties
Permanent dimensional stability
Highest level of fire safety for various building types

Applications

Exterior insulation for high-rise and super-high-rise buildings
Public buildings with strict fire safety requirements (hospitals, schools, shopping malls, etc.)
Curtain wall insulation and ventilated facade systems
Fireproof insulation for steel structures
Fire compartments, refuge floors, and other special areas

Technical Specifications

Parameter Product	FR120	FR140
Density (kg/m³)	120	140
Tensile Strength (kPa)	≥7.5 / 10	≥10 / 15
Thermal Conductivity (W/m*K, 25°C)	≤0.038	≤0.040
Combustibility	Class A1 non-combustible
Acidity Coefficient	≥2.0
Hydrophobic Rate (%)	≥99.0

Feature Advantages

Class A1 Non-Combustible - Maximum Building Safety

Meets Class A1 non-combustible material standard: does not burn, contribute to fire, or propagate flames. With a melting point above 1000°C, it provides the most reliable fire barrier for buildings.

No Toxic Fumes During Fire - Reducing Suffocation Risk

100% inorganic mineral fibers emit no toxic gases or dense smoke during a fire, buying crucial time for evacuation and maximizing life safety.

Stable Physical-Chemical Properties - Long-Term Fire Protection

High acidity coefficient ensures resistance to corrosion, humidity, and chemical exposure—fire performance never degrades over time, providing lasting protection.

Permanent Dimensional Stability - No Gaps for Flames

Excellent thermal stability means no shrinkage, deformation, or cracking under high temperatures, ensuring tight panel joints and effectively blocking flame penetration paths.

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Class A1 non-combustible Fireproof Rock Wool – Exterior Wall Insulation

Class A1 non-combustible Fireproof Rock Wool – Exterior Wall Insulation

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fireproof rock wool insulation

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Class A1 non-combustible Fireproof Rock Wool – Exterior Wall Insulation Images