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A1 Fireproof Mineral Wool Insulation Panel

Our factory-made A1 fireproof rock wool board provides safe, durable thermal and acoustic insulation. Certified A1 non-combustible, it’s ideal for building and industrial use. Low thermal conductivity saves energy, while high density reduces noise. Custom sizes and densities available.

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Product Description

product overview

Our A1 Fireproof Rock Wool Insulation Board is a premium thermal and acoustic insulation solution, made from natural basalt rock. Certified to the highest A1 non-combustible standard, it provides critical fire safety, slowing flame spread and protecting buildings and occupants. With low thermal conductivity, it effectively reduces heat transfer, helping buildings maintain stable temperatures and cut energy costs. The dense, fibrous structure offers excellent sound absorption, reducing noise pollution in commercial, residential and industrial spaces. It is also moisture-resistant, mold-resistant and dimensionally stable, maintaining consistent performance over time. Our factory offers Custom sizes densities and thicknesses to suit walls, roofs, HVAC systems and industrial equipment applications.

mineral wool insulation panel

Core Advantages of Mineral Wool Insulation Panel

A1 Non-Combustible Fire Safety

Mineral wool insulation panel is certified to the highest A1 fire resistance grade, meaning it is completely non-combustible. It does not ignite, melt, or release toxic fumes when exposed to high temperatures, effectively slowing flame spread and preventing the spread of fire in buildings. This critical feature ensures maximum safety for both commercial and residential structures, meeting the strictest building code requirements worldwide.

Excellent Thermal Insulation Performance

With low thermal conductivity, mineral wool panels provide superior heat retention and heat-blocking capabilities. They effectively reduce heat transfer through walls, roofs, and industrial equipment, helping buildings maintain stable indoor temperatures year-round. This leads to significant energy savings by reducing the need for constant heating and cooling, lowering utility costs and improving overall energy efficiency.

High-Efficiency Sound Absorption

The dense, fibrous structure of mineral wool makes it an excellent soundproofing material. It absorbs airborne and impact noise, reducing echo and sound transmission between rooms, floors, and adjacent spaces. This creates quieter, more comfortable indoor environments in offices, apartments, schools, and industrial facilities, making it ideal for both acoustic comfort and noise control projects.

Durable & Moisture-Resistant

Mineral wool is naturally resistant to moisture, mold, and mildew. Unlike organic insulation materials, it does not absorb water easily or degrade in humid conditions. It maintains its structural integrity and insulation performance over decades, even in damp or high-humidity environments. It is also dimensionally stable, meaning it will not shrink, settle, or lose efficiency over time.

Versatile & Easy to Install

Available in various densities, thicknesses, and custom sizes, mineral wool panels suit a wide range of applications, including building walls, roofs, HVAC systems, and industrial equipment. They are lightweight, easy to cut, and simple to install, allowing for fast and efficient construction. They can also be combined with other materials to meet specific project requirements, offering great flexibility for different design and budget needs.

Technical Specifications of Rock Wool Board

Key Attributes	Details
Material	Basalt fiber (Mineral wool)
Product Name	Rock Wool Insulation Board
Type	Thermal / Acoustic Insulation Material
Insulation R-value	R3–R11 (depending on density & thickness)
Standard Dimensions	Length: 1200mm; Width: 600mm; Thickness: 30–150mm (customizable)
Density	50–120 kg/m³ (customizable)
Shape	Rectangular board / panel
Eco Friendly	Yes, recyclable & formaldehyde-free
Thermal Conductivity	0.034–0.040 W/m·K (@25°C)
Color	Gray / Brown / Yellow (as per standard production)
OEM Service	Accept OEM & custom specifications
Place of Origin	Guangdong, China (factory direct supply)
Core Functions	Fireproof / Thermal insulation / Sound absorption / Water resistant
Facing Options	Unfaced, aluminum foil, kraft paper, glass mesh (single/double-sided)
Reaction to Fire	Euroclass A1/A2 (non-combustible, EN 13501-1)
Max Service Temp	Recommended continuous: ≤650°C; Peak: up to 1000°C
Melting Point	>1000°C
Moisture Resistance	>98%
Water Absorption	≤0.5 kg/m² (24h)
After-sale Service	Online technical support, installation guidance
Warranty	1 Year

Applications of Rock Wool Insulation

Building Exterior & Wall Insulation

Rock wool board is widely used in building exterior walls, internal partition walls, and curtain walls. It provides excellent thermal insulation, helping maintain stable indoor temperatures and reducing heating/cooling costs. Its A1 non-combustible rating enhances building fire safety, meeting strict construction codes worldwide.

Roof & Attic Insulation

Ideal for flat roofs, sloped roofs, and attic spaces, rock wool effectively prevents heat loss in winter and heat gain in summer. It also offers superior sound absorption, reducing external noise and creating quieter living environments. Its moisture-resistant properties prevent mold growth in humid roof spaces.

Industrial Equipment & HVAC Systems

Rock wool is used to insulate boilers, pipes, ducts, and industrial ovens. It maintains consistent operating temperatures, improves energy efficiency, and protects equipment from high heat. Its high-temperature resistance ensures reliable performance even in harsh industrial environments.

Commercial & Public Buildings

Perfect for schools, hospitals, offices, and shopping malls. Rock wool provides thermal comfort, reduces noise pollution, and meets fire safety regulations. It is commonly installed in ceiling cavities, wall cavities, and partition systems for comprehensive insulation.

Marine & Offshore Applications

Due to its excellent fire resistance, moisture resistance, and durability, rock wool is used in ships, offshore platforms, and marine facilities. It withstands high humidity and saltwater environments, providing reliable insulation and safety for marine structures.

Customization Service

We provide one-stop customization service for rock wool board tailored to your building and project requirements:

Size Customization: Custom length, width and thickness (30–150mm) according to construction drawings and on-site installation needs.

Performance Customization: Adjust density, fiber structure and thermal conductivity for projects requiring enhanced fire resistance, thermal insulation or sound absorption.

Facing Customization: Optional aluminum foil, kraft paper, glass mesh or other facings to improve moisture resistance, fire safety and mechanical strength.

OEM Service: Support brand printing, packaging customization and bulk order parameter optimization for building material distributors and project contractors.

After-sales Support for B2B Clients

We offer dedicated after-sales support for B2B clients, including:

Online technical consultation and installation guidance

Product usage and safety specification documents

Bulk order quality control and traceability

Fast response to project and delivery inquiries

FAQ

Q1: Why is this rock wool board excellent for soundproofing?

A: It features a dense, porous fiber structure with a high sound absorption coefficient (αw of 0.8–1.0 at 1000–4000 Hz for thickness ≥50mm). This efficiently absorbs sound energy, reduces airborne noise and reverberation, and effectively blocks structure-borne noise.

Q2: What are the customizable specifications of this rock wool board?

A: Standard dimensions are 1200mm × 600mm, with thickness ranging from 25–150mm (all customizable). Density is adjustable from 40–150 kg/m³, and custom facing options are available, including aluminum foil, kraft paper, and glass mesh.

Q3: What fire safety standard does the rock wool board comply with?

A: It meets Euroclass A1 (non-combustible) fire rating according to EN 13501-1. With a melting point above 1000°C, it provides superior fire resistance and flame spread control, making it ideal for high-safety construction projects.

Q4: How does this rock wool board perform in thermal insulation?

A: With a low thermal conductivity of 0.034–0.040 W/m·K (@25°C), it effectively reduces heat transfer through walls, roofs, and industrial equipment. This stable thermal performance helps maintain consistent indoor temperatures and lowers energy consumption for heating and cooling.

Q5: Is the rock wool board moisture-resistant and durable?

A: Yes. It has high moisture resistance (>98%) and low water absorption (≤0.5 kg/m² in 24 hours), preventing mold and mildew growth in humid environments. The inorganic basalt fiber structure ensures long-term dimensional stability, so it won’t shrink or settle over decades of use.