Rock Wool Strip Lamella for Exterior Wall Fire Protection
  • 3D diagram showing rock wool strip lamella installed in exterior wall for fire protection – professional building insulation system by Liluan Technology
  • Rock wool strip lamella moving on production line – manufacturing process for exterior wall fire protection insulation by Liluan Technology
  • Rock wool strip thickness measurement with digital caliper – quality control for external wall insulation and sandwich panel core by Liluan Technology
  • Large stacks of rock wool strip lamella ready for exterior wall fire protection – high-density A1 fire-rated insulation material by Liluan Technology
  • Packaged rock wool strip lamella with viewing window – ready for exterior wall fire protection and sandwich panel core by Liluan Technology
  • 3D diagram showing rock wool strip lamella installed in exterior wall for fire protection – professional building insulation system by Liluan Technology
  • Rock wool strip lamella moving on production line – manufacturing process for exterior wall fire protection insulation by Liluan Technology
  • Rock wool strip thickness measurement with digital caliper – quality control for external wall insulation and sandwich panel core by Liluan Technology
  • Large stacks of rock wool strip lamella ready for exterior wall fire protection – high-density A1 fire-rated insulation material by Liluan Technology
  • Packaged rock wool strip lamella with viewing window – ready for exterior wall fire protection and sandwich panel core by Liluan Technology

Rock Wool Strip Lamella for Exterior Wall Fire Protection

No.LL-RWL-02

Rock Wool Strip Lamella is a high-performance insulation material specifically engineered for high-rise and high-occupancy building safety. Unlike standard rock wool, the "Lamella" structure is created by cutting mineral wool boards into strips and rotating them 90° so that the fibers stand perpendicular to the wall surface.

This vertical fiber orientation transforms the material from a simple thermal layer into a structural-grade fire barrier, providing the highest level of mechanical strength and fire resistance for exterior insulation and finish systems (EIFS).

Density: 80k 100k 120k
L*W:1200*100/150mm
Thickness: 20~200mm
Brand: DONGWUTIANZI or OEM
(Size can be customized)
  • 3D diagram showing rock wool strip lamella installed in exterior wall for fire protection – professional building insulation system by Liluan Technology
  • Rock wool strip lamella moving on production line – manufacturing process for exterior wall fire protection insulation by Liluan Technology
  • Rock wool strip thickness measurement with digital caliper – quality control for external wall insulation and sandwich panel core by Liluan Technology
  • Large stacks of rock wool strip lamella ready for exterior wall fire protection – high-density A1 fire-rated insulation material by Liluan Technology
  • Packaged rock wool strip lamella with viewing window – ready for exterior wall fire protection and sandwich panel core by Liluan Technology

Description

Technical Diameters
Product Performance LL-RWL-01 Unit Standard
Compressive strength ≥80 kPa GB/T 13480
Tensile strength ≥150 kPa GB/T 30804
Thermal conductivity (25°C) ≤0.043 W/(m·k) GB/T 10294
Combustion performance Class A GB 8624-2012
Acidity coefficient ≥1.8 GB/T 5480
Hydrophobic rate ≥99 % GB/T 10299
Mass moisture absorption rate ≤1.0 % GB/T 5480
Water absorption (Partial Immersion) Short term (24h) ≤0.5 kg/m² GB/T 30805
Water absorption (Partial Immersion) Long term (28d) ≤2.0 kg/m² GB/T 30807
Noise reduction coefficient (NRC) ≥0.6 GB/T 18696.1
Dimensional stability ≤1.0 % GB/T 30806
Melting temperature ≥1000 °C
Thickness tolerance ±1 mm GB/T 5480
Right-angle degree of deviation ≤5 mm/m GB/T 5480
Flatness tolerance ≤2.0 mm GB/T 25975-2018

Product Advantages

1. Superior Tensile and Bond Strength

The vertical fiber alignment significantly increases the "pull-off" resistance of the material. This ensures that the insulation remains securely bonded to the exterior substrate even when subjected to intense wind suction or the weight of heavy decorative finishes.

2. High Compressive Resistance

Because the mineral fibers are rotated 90° to stand perpendicular to the wall, they act like vertical columns. This structural orientation provides a much higher load-bearing capacity than standard flat-fiber insulation, preventing the facade from deforming or sagging over time.

3. Class A1 Non-Combustible Fire Barrier

As an inorganic mineral material made from volcanic rock, Lamella is naturally fireproof and can withstand temperatures exceeding 1000°C. It serves as a vital fire stop within building facades, preventing the vertical spread of flames and meeting the strictest building safety codes.

4. Excellent Dimensional Stability

The inorganic nature of the volcanic rock fibers ensures that the strips are hydrophobic and rot-resistant. They maintain their shape and thickness throughout the lifetime of the building, regardless of fluctuations in temperature or humidity, ensuring long-term thermal performance.

5. Effective Thermal and Acoustic Insulation

While providing structural strength, Lamella retains a low thermal conductivity for energy conservation. Additionally, its open-cell fiber matrix effectively dampens external noise, providing a quieter indoor environment for building occupants.
Rock wool strip thickness measurement with digital caliper – quality control for external wall insulation and sandwich panel core by Liluan Technology

About Us

  • Leading Rock Wool Manufacturer with Proven Industry Expertise
    Founded in 2009, Anhui Liluan Technology Co., Ltd. stands as a trusted name in mineral wool insulation manufacturing. We specialize in producing high-performance rock wool boards, blankets, and pipe insulation materials widely used in construction, industrial, and agricultural applications. With over 15 years of focused development, Liluan combines advanced manufacturing knowledge with strict quality standards, supporting global partners in achieving better thermal, fire, and sound performance.
  • Fully Integrated Production Lines Backed by Stringent Quality Control
    Our production base operates cutting-edge automated lines designed to maximize efficiency and ensure uniform quality. Each stage of the process—from raw material selection to final product packaging—is subject to rigorous inspections, meeting ISO 9001 and CE certification standards. Our integrated systems enable large-volume, custom-dimension production that adapts seamlessly to specific project requirements, ensuring both product performance and cost-efficiency.
  • Scalable Output with Global Market Reach
    With an annual output capacity sufficient to serve large-scale international contracts, Liluan is well-positioned to support long-term industrial supply chains. Our export network spans across Europe, the Middle East, Southeast Asia, and the Americas, reflecting a proven ability to deliver quality consistently and on time. Customers rely on our flexible logistics and responsive support team to simplify procurement and ensure reliability in every delivery.
  • Commitment to Sustainable Manufacturing and Customer-Centric Service
    Sustainability is embedded in our manufacturing processes—from energy-efficient kilns to the use of recyclable packaging. Our products enhance building insulation performance, thereby contributing to energy conservation and reducing carbon emissions. We offer personalized pre-sale consultation, technical support, and post-sale assistance, aligning every project with client goals. Whether you are sourcing for infrastructure, OEM supply, or retail channels, Liluan is your capable and responsible partner in insulation solutions.

Workers loading rock wool strip lamella boxes onto truck for exterior wall fire protection projects – professional fire-rated insulation by Liluan Technology
FAQ

1. Who are we?
Anhui Liluan Technology Co., Ltd. is a specialized manufacturer of high-quality rock wool insulation materials, established in 2009, with a focus on delivering reliable solutions for various industries.

2. How can we guarantee quality?
Our advanced automated production lines, comprehensive quality control systems, and adherence to international standards ensure consistent and superior product quality.

3. What can you buy from us?
We offer a diverse range of rock wool products, including boards, blankets, pipes, and customized insulation solutions tailored to specific applications.

4. Why should you buy from us and not from other suppliers?
Our commitment to quality, sustainability, and customer satisfaction, combined with our extensive industry experience and advanced manufacturing capabilities, positions us as a trusted partner in insulation solutions.

5. What services can we provide?
We provide comprehensive services, including product consultation, customized design, efficient production, quality assurance, and reliable logistics support to ensure client success.