Rock Wool Insulation
Your Professional Rock Wool Insulation Supplier
Langfang Henggang Energy Saving Technology Co., Ltd. was established in 2020 and specializes in producing high-quality insulation materials, including rock wool, glass wool, and rubber & plastic products. Our factory is equipped with advanced production lines and core equipment, including automated systems and testing facilities. We have a skilled team focused on quality control, customer service, and innovation. With multiple production lines and a strong R&D capacity, we serve both domestic and international markets. Our products meet strict quality standards, ensuring reliable performance for industries such as construction, petroleum, power, and transportation.
Why choose us
Certifications
Our products are ISO9001 \CE and SGS certified, ensuring compliance with global quality and safety standards, which enhances their credibility in international markets.
Sales Markets
These products not only meet the needs of the domestic market, but are also exported to the United States, Russia, Canada, Poland, Korea, India, Saudi Arabia and many other countries and regions.
Quality Assurance
We maintain a comprehensive quality assurance system to monitor production processes closely, ensuring the highest quality insulation materials that meet both domestic and international standards.
Technical Support
Our experienced team is dedicated to continuous improvement, with a focus on R&D and optimizing production processes, allowing us to meet both domestic and international customer requirements.
Rockwool Composite Panels
At its core, a rock wool composite panel is a layered construction material that combines rock wool insulation with a protective outer shell, often made of metal or other durable materials. The core material, rock wool, is produced by melting volcanic rock and spinning it into fibers, which are then compressed into panels. These panels are designed to provide excellent thermal insulation, soundproofing, and fire resistance. The outer layers serve to protect the core and provide a surface suitable for finishing or further processing.
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Specifications |
Details |
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Materials |
Galvanized steel sheet, PVC decorative film, adhesive, rock wool |
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Structure |
Adhesive layer, insulation layer, plaster layer, finishing layer, and accessories |
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Fire rating |
Class A non-combustible material |
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Application |
Marine cabin interiors |
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Technical features |
Modular structure |
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Installation |
Mechanical snap-fit connection |
Exceptional Thermal Insulation: The rock wool core has low thermal conductivity (typically 0.036–0.040 W/m·K), reducing heat transfer and improving energy efficiency in buildings.
Superior Fire Resistance: Rock wool is non-combustible (classified as A1 fire rating in Europe) and can withstand temperatures over 1000°C, providing critical fire protection and compartmentalization.
Effective Sound Absorption: The fibrous structure of rock wool absorbs airborne noise, making these panels suitable for environments requiring acoustic comfort.
Lightweight & Easy Installation: Despite their strength, the panels are relatively light, simplifying transport and installation, which reduces labor costs and construction time.
Durability
Resistant to moisture, mold, pests, and corrosion—especially when coated steel is used—ensuring long-term performance in harsh climates.
Environmental Sustainability
Made from abundant natural basalt and up to 70% recycled content, rock wool is fully recyclable and contributes to green building certifications like LEED and BREEAM.
Versatility
Available in various thicknesses, widths, and finishes to suit different design and performance requirements.
PIR (Polyisocyanurate) Rock Wool Panels
Combines the fire-resistant properties of rock wool with the high thermal performance of PIR foam for enhanced insulation efficiency.
Polyurethane (PU) Rock Wool Panels
Features a rigid polyurethane foam core combined with rock wool layers for balanced insulation and structural performance.
EPS (Expanded Polystyrene) Rock Wool Panels
Utilizes expanded polystyrene foam as the insulating core, offering a cost-effective solution with moderate performance.
Vapour-Faced Rock Wool Panels
Incorporates a built-in vapor barrier (typically aluminum foil or polymer film) to control moisture migration.
Unfaced Rock Wool Panels
Standard rock wool panels without an integrated vapor barrier, allowing for flexible moisture management.
Applications of Rockwool Composite Panels
Commercial Buildings
Used for exterior cladding, interior partitions, and roofing, providing insulation and fire safety. For example, office complexes benefit from energy savings and safety compliance.
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Industrial Facilities
Factories and warehouses utilize these panels for fireproofing and noise reduction, improving safety and working conditions.
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Healthcare and Educational Institutions
Hospitals and schools require fire-resistant materials; these panels help meet strict safety standards while maintaining insulation.
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Transport Infrastructure
Airports, train stations, and bus terminals adopt these panels for their durability and fire safety features, ensuring passenger safety.
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Renovation Projects
Retrofitting older buildings with modern, energy-efficient panels enhances safety and reduces energy costs.
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How It Works of Rockwool Composite Panels
Manufacturing the core
Volcanic rock is melted at high temperatures and spun into fibers, which are then compressed into dense panels. This process creates a fire-resistant, sound-absorbing core.
Layering outer surfaces
The rock wool core is sandwiched between protective outer layers, typically made of galvanized steel, aluminum, or other durable materials. These layers are bonded to the core using adhesives or mechanical fasteners.
Cutting and shaping
The panels are cut into specified sizes and shapes based on project needs. Edges may be finished or left raw for installation.
Installation
The panels are mounted onto building structures using fasteners, clips, or adhesives. Proper sealing ensures insulation and fireproofing properties are maintained.
Finishing
Additional surface treatments or coatings can be applied for aesthetic purposes or enhanced durability.
precautions Performance Requirements Of Rockwool Composite Panelsfor product use
Wall Cladding: Ideal for exterior and interior walls in commercial, industrial, and residential buildings. Look for panels with good thermal resistance (R-value) and weather-resistant coatings. Panels typically range from 50mm to 100mm in thickness.
Roofing Systems: Require higher structural strength to support snow, wind, and maintenance loads. Choose thicker panels (75mm–150mm) with reinforced facings and proper drainage design to prevent water pooling.
Cold Storage & Refrigerated Facilities: Demand superior thermal insulation to minimize heat transfer. Opt for high-density rock wool cores (≥120 kg/m³) and vapor barriers to prevent condensation and maintain consistent internal temperatures.
Fire-Rated Partitions: In high-risk areas like data centers, hospitals, or industrial zones, select panels with certified fire resistance ratings (e.g., 1–4 hours) and non-combustible rock wool cores that meet Class A fire safety standards.
Installed of Rockwool Composite Panels
Substrate Preparation
Ensure the supporting structure (steel frame, wall, or roof deck) is level, clean, and structurally sound.
Panel Positioning
Panels are lifted into place using cranes or manual handling equipment, aligning them precisely with adjacent units.
Securing Panels
Fastened using self-tapping screws, bolts, or specialized clips. Adhesives may also be used for additional sealing and bonding.
Joint Sealing
Overlapping or tongue-and-groove edges are sealed with butyl tape, silicone, or gaskets to prevent air leakage, water ingress, and thermal bridging.
Edge & Corner Finishing
Trim pieces, flashings, and corner guards are installed to enhance weather resistance and aesthetics.
Final Inspection
Check alignment, fastener tightness, sealant integrity, and overall panel continuity.
Rock Wool Production:
Natural basalt rock and recycled slag are melted in a cupola furnace at temperatures exceeding 1450°C.
The molten mixture is spun through centrifugal wheels into fine fibers—a process similar to making cotton candy.
Binders (typically phenolic resins) and water-repellent additives are introduced to form a wool mat.
The mat is cured in an oven, then cut into boards or rolls of specified density and thickness.
Panel Assembly:
Pre-finished metal sheets (coated steel or aluminum) are fed into a continuous lamination line.
The rock wool core is placed between the metal skins and bonded under pressure using structural adhesives.
The composite panel is pressed and cured to ensure strong adhesion and dimensional stability.
Final cutting, profiling (e.g., trapezoidal ribs), and quality inspection complete the process.
FAQ
We're well-known as one of the leading rock wool insulation manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to buy high-grade rock wool insulation for sale here from our factory.
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