Rock Wool Lamella Batts / Strip
Product Type: Rock Wool Lamella Batts, Rock Wool Strip, Mineral Wool Lamella Insulation, Rockwool Lamella Board
Standards: EN 13162 · GB/T 25975-2018 · ASTM C612 · AS/NZS 4859.1 · JIS A 9504
Applications: Curtain Wall Insulation · Partition Wall Insulation · Sandwich Panel Core · Ventilated Facade · Fire Protection
About TARCO Industry — Your Trusted Rock Wool Lamella Batts Manufacturer
As a professional rock wool lamella batts manufacturer, TARCO Industry produces high-quality mineral wool lamella insulation and rockwool strips for curtain wall, partition, and sandwich panel applications.
Furthermore, our factory operates a complete production line from basalt rock melting to fiber forming, strip cutting, and 90-degree rotation.
Consequently, this ensures consistent quality, competitive factory-direct pricing, and reliable global supply.
Therefore, the company engineers its rock wool lamella batts products to meet the rigorous demands of fire protection, thermal insulation, and mechanical strength projects across international markets.
In addition, as a direct rock wool factory, TARCO Industry eliminates middlemen and provides OEM/ODM services.
Moreover, we export our rock wool lamella batts and strip products to customers in North America, Europe, Australia, New Zealand, Southeast Asia, the Middle East, and Oceania.
Consequently, we provide full compliance documentation for each order. Specifically, you can explore our Rock Wool Blanket and Rock Wool Pipe Insulation for more insulation solutions.
Product Overview: Rock Wool Lamella Batts & Strip
Rock wool lamella batts (also known as rock wool strip or mineral wool lamella insulation) represents a high-density insulation product manufactured by cutting rock wool boards into strips and rotating them 90 degrees so that the fibres run perpendicular to the surface.
Specifically, this vertical fibre orientation gives the lamella its unique combination of high compressive strength and excellent fire performance.
Consequently, this structure delivers exceptional thermal insulation, fire protection, and mechanical strength for curtain wall, partition, and sandwich panel applications.
TARCO Industry produces its rock wool lamella batts from high-quality basalt rock and blast furnace slag, melting these raw materials at temperatures exceeding 1500°C.
During production, we fiberize the molten rock using high-speed spinning wheels, form the fibres into boards, cut the boards into strips, and rotate the strips 90 degrees to achieve the vertical fibre orientation.
Ultimately, the product is precision-cut into batts or strips and can be supplied with various facings including aluminum foil or glass tissue to suit specific application requirements.
Key Features & Benefits of Rock Wool Lamella Batts
Furthermore, the vertical fibre orientation of rock wool lamella batts delivers high compressive strength, making them ideal for load-bearing applications such as sandwich panel cores.
Additionally, the product achieves Euroclass A1 non-combustible fire classification per EN 13501-1, the highest possible fire rating.
Moreover, the melting point exceeding 1000°C ensures the highest level of fire safety in building and industrial applications.
Consequently, rock wool lamella batts provide excellent thermal insulation with low thermal conductivity values ranging from 0.036 to 0.045 W/m·K.
Therefore, the product offers exceptional tensile strength perpendicular to the faces, with TR80 (≥ 80 kPa) and higher grades available for demanding applications.
In addition, the lamella structure provides superior shear strength and shear modulus, essential for curtain wall and partition systems subject to wind loads.
Furthermore, the hydrophobic binder ensures water repellency greater than 98%, preventing moisture absorption and maintaining thermal performance over time.
Finally, rock wool lamella batts are chemically inert, rot-proof, vermin-proof, and resistant to microbial growth for long service life.
Technical Specifications — Rock Wool Lamella Batts / Strip
Physical & Thermal Properties
Furthermore, the following table details the physical and thermal properties of our rock wool lamella batts and strip products.
| Parameter | Unit | Value / Range | Standard |
|---|---|---|---|
| Density | kg/m³ | 40 – 200 (customizable) | ASTM C167 / EN 1602 / GB/T 5480.3 |
| Thickness | mm | 25 – 200 | ASTM C167 / EN 823 |
| Strip Width | mm | 100 – 200 | GB/T 25975 |
| Standard Length | mm | 1200 (custom lengths available) | EN 822 |
| Thermal Conductivity (λ) at 10°C | W/m·K | 0.036 – 0.037 | EN 12667 / ASTM C518 |
| Thermal Conductivity (λ) at 25°C | W/m·K | 0.038 – 0.040 | ASTM C518 / GB/T 10295 |
| Thermal Conductivity (λ) at 50°C | W/m·K | 0.042 – 0.045 | ASTM C518 / GB/T 10295 |
| Thermal Conductivity (λ) at 100°C | W/m·K | 0.050 – 0.055 | ASTM C518 / GB/T 10295 |
| Max. Service Temperature | °C | 250 – 650 (density dependent) | EN 14706 / ASTM C411 |
| Melting Point | °C | > 1000 | DIN 4102-17 |
| Fiber Diameter | μm | 4.0 – 7.0 | GB/T 13350 |
| Shot Content | % | ≤ 5 – 12 | GB/T 11835 |
| Compressive Strength (at 10% deformation) | kPa | ≥ 40 – 180 (density dependent) | EN 826 |
| Tensile Strength Perpendicular (Dry) | kPa | ≥ 80 (TR80) / ≥ 100 (TR100) / ≥ 150 (TR150) | EN 1607 |
| Tensile Strength Perpendicular (Wet) | kPa | ≥ 50 (for ETICS applications) | ETAG 004 |
| Shear Strength | kPa | ≥ 20 | EN 12090 |
| Shear Modulus of Elasticity | kPa | ≥ 1000 | EN 12090 |
| Water Absorption (Short Term) | kg/m² | ≤ 1.0 | EN 1609 / GB/T 5480 |
| Water Absorption (Long Term) | kg/m² | ≤ 3.0 | EN 12087 |
| Water Repellency | % | > 98 | GB/T 10299 |
| Dimensional Stability (DS(70,90)) | % | ≤ 1.0 | EN 1604 |
| Leachable Chloride | ppm | ≤ 10 (low-chloride grade available: ≤ 6) | ASTM C871 / EN 13468 |
| Recycled Content | % | Up to 50 | — |
| Facing Options | — | Unfaced / Aluminum Foil / Glass Tissue | — |
Fire Performance & Safety
Additionally, the following table outlines the fire performance and safety standards for rock wool lamella batts.
| Parameter | Result | Standard |
|---|---|---|
| Reaction to Fire | Euroclass A1 / Non-combustible | EN 13501-1 |
| Non-combustibility | Non-combustible | ASTM E136 / AS 1530.1 |
| Flame Spread Index (FSI) | 0 | ASTM E84 / UL 723 |
| Smoke Developed Index (SDI) | 0 | ASTM E84 / UL 723 |
| Fire Hazard Properties | Ignitability: 0, Spread of Flame: 0, Heat Evolved: 0 | AS/NZS 1530.3 |
| Fire Resistance (Sandwich Panel) | EI 120 – EI 240 (depending on thickness and facing) | EN 1364-1 / EN 1364-2 |
| Corrosion Resistance | Passes ASTM C795/C692 stress-corrosion drip test over Type 304 stainless steel | ASTM C871 / ASTM C692 |
| Fungal Resistance | Does not support fungal growth | ASTM C1338 |
| IARC Classification | Group 3 (Not classifiable as carcinogenic to humans) | IARC |
International Standards Compliance for Rock Wool Lamella Batts
TARCO Industry manufactures and tests its rock wool lamella batts and strip products in accordance with the following international standards, ensuring global market compatibility and regulatory compliance.
Furthermore, you can verify these standards on the official websites of ASTM International, ISO, and Standards Australia.
EUROPE EN 13162:2012+A1:2015 — Thermal Insulation Products for Buildings
Furthermore, EN 13162 is the harmonized European Standard that specifies requirements for factory-made mineral wool (MW) thermal insulation products.
Additionally, products certified under EN 13162 fall under the Construction Products Regulation (EU) No 305/2011 (CPR).
Moreover, TARCO Industry rock wool lamella batts comply with EN 13162:2012+A1:2015, with declared thermal conductivity values (λD) ranging from 0.036 to 0.045 W/m·K at 10°C mean temperature.
Furthermore, the product is CE-labelled, which is the visual proof that it meets the standard for mineral wool — NS-EN 13162.
Regarding EN 13501-1:2018 & CPR (EU) No 305/2011
Consequently, EN 13501-1 represents the European Standard for the fire classification of construction products.
Therefore, under this standard, rock wool lamella batts achieve Euroclass A1 (non-combustible, the highest possible rating).
Additionally, TARCO Industry provides full CE documentation and Declaration of Performance (DoP) for products supplied to European markets.
Standard EN 14303 & EN 14706 — Industrial Installations and Service Temperature
Additionally, EN 14303 specifies requirements for thermal insulation products for building equipment and industrial installations, while EN 14706 specifies the determination of maximum service temperature.
Moreover, TARCO Industry rock wool lamella batts achieve a maximum service temperature of 250°C (aluminum foil faced) to 650°C (unfaced, high density).
AUSTRALIA / NEW ZEALAND AS/NZS 4859.1:2018 — Thermal Insulation Materials for Buildings
Furthermore, AS/NZS 4859.1:2018 establishes the joint Australian/New Zealand Standard that sets out general criteria, technical provisions, and methods of test for materials used for thermal insulation within buildings.
Additionally, the Joint Technical Committee BD-058 (Thermal Insulation) prepared the standard and published it on 19 November 2018.
Therefore, products compliant with this standard demonstrate conformity with the National Construction Code (NCC).
Consequently, TARCO Industry tests its rock wool lamella batts for thermal conductivity, R-value determination, and fire hazard properties in accordance with AS/NZS 4859.1 at 23°C.
Standard AS 1530.1 — Combustibility Test for Materials
Specifically, AS 1530.1 represents the Australian Standard fire test method for determining the non-combustibility of building materials.
Moreover, TARCO Industry classifies its rock wool lamella batts as non-combustible under AS 1530.1.
Therefore, the product meets the non-combustible requirements of NCC 2022 Volume 1 C2D10(1).
Regarding AS/NZS 1530.3 — Fire Hazard Properties
In addition, AS/NZS 1530.3 provides the early fire hazard properties test method for building materials.
Furthermore, when assessed to AS/NZS 1530.3, TARCO Industry rock wool lamella batts achieve Ignitability: 0, Spread of Flame: 0, Heat Evolved: 0, and Smoke Developed: 0-1, meeting the requirements of the National Construction Code.
CHINA GB/T 25975-2018 — Rock Wool Products for External Thermal Insulation Composite Systems
In addition, GB/T 25975-2018 represents the primary Chinese national standard covering rock wool products for external thermal insulation composite systems.
Specifically, it specifies terminology and definitions, classification and marking, requirements, test methods, inspection rules, marking, packaging, transportation, and storage.
Moreover, this standard applies to rock wool boards and lamella strips used in building external thermal insulation systems.
Therefore, TARCO Industry manufactures rock wool lamella batts in full compliance with GB/T 25975-2018, with shear strength ≥ 20 kPa, shear modulus ≥ 1000 kPa, and tensile strength perpendicular to faces ≥ 80 kPa (TR80).
USA / NORTH AMERICA ASTM C612 — Mineral Fiber Block and Board Thermal Insulation
Furthermore, ASTM C612 represents the standard specification for mineral fiber block and board thermal insulation for industrial and commercial applications.
Additionally, this standard covers the classification, composition, physical properties, and dimensions of rock wool and slag wool board insulation.
Moreover, the standard classifies mineral fiber board into types based on maximum use temperature and thermal conductivity, including Type I (up to 450°C), Type II (up to 650°C), and Type III (up to 850°C).
Therefore, TARCO Industry tests its rock wool lamella batts for odor emission, corrosiveness, non-fibrous content, maximum use temperature, thermal conductivity, water vapor sorption, flexibility, and surface burning characteristics per ASTM C612 requirements.
Specifically, our rock wool lamella batts conform to ASTM C612 Type II across the full property suite, independently tested by SGS.
JAPAN JIS A 9504:2024 — Man-Made Mineral Fibre Thermal Insulation Materials
Additionally, JIS A 9504:2024 specifies requirements for thermal insulation materials used in industrial installations and building air-conditioning systems.
Moreover, it covers rock wool board, blanket, pipe insulation, felt, and wave insulation.
Consequently, TARCO Industry’s rock wool lamella batts and strip products conform to JIS A 9504 requirements for density, thermal conductivity, fiber diameter, shot content, and formaldehyde emission characteristics.
Standard Sizes & Customization of Rock Wool Lamella Batts
Furthermore, TARCO Industry offers a comprehensive range of standard sizes for rock wool lamella batts and strip products.
Additionally, we provide custom dimensions, densities, and facings upon request. The standard size chart below shows the typical density-thickness combinations available.
| Density (kg/m³) | Thickness (mm) | Strip Width (mm) | Standard Length (mm) | Typical Application |
|---|---|---|---|---|
| 40 – 60 | 25 – 50 | 100 – 150 | 1200 | Partition wall insulation, HVAC |
| 60 – 80 | 50 – 100 | 100 – 200 | 1200 | Curtain wall insulation, ventilated facade |
| 80 – 100 | 50 – 150 | 100 – 200 | 1200 | Sandwich panel core, fire barrier |
| 100 – 120 | 50 – 200 | 100 – 200 | 1200 | High-strength sandwich panel core |
| 120 – 150 | 50 – 200 | 100 – 200 | 1200 | Heavy-duty industrial, high load |
| 150 – 200 | 50 – 200 | 100 – 200 | 1200 | Severe conditions, maximum strength |
Available Facings for Rock Wool Lamella Batts
Furthermore, we offer various facings to meet different application requirements.
Specifically, the Unfaced option provides a standard bare rock wool lamella for applications where facings are not required.
Additionally, the Aluminum Foil (FSK) facing offers a reflective vapor barrier for HVAC and ducting applications.
Moreover, Glass Tissue facing provides a protective surface for industrial applications.
Consequently, Black Glass Tissue (BGT) facing is suitable for acoustic and aesthetic applications.
Finally, the product can be supplied with factory-applied adhesives for rapid installation on curtain wall and partition systems.
Applications of Rock Wool Lamella Batts / Strip
Furthermore, this product is widely used in curtain wall insulation for non-transparent curtain wall systems and ventilated facades, particularly for high-rise commercial and residential buildings.
Additionally, it is ideal for partition wall insulation in offices, hotels, hospitals, and commercial buildings where fire resistance and acoustic performance are critical.
Moreover, it serves as sandwich panel core material for metal-faced sandwich panels used in external walls, roofs, and partitions of commercial, industrial, and public buildings.
Consequently, it is utilized for fire protection in fire barriers, firestops, and passive fire protection systems.
Therefore, it is applied in Ventilated Facade and Rain-Screen Cladding systems fixed on concrete or brick walls.
In addition, it is used in Marine and Offshore applications for thermal insulation and fire protection of ship equipment and offshore platforms.
Finally, it is applied in Architectural Doors and Volumetric Systems as a fire-rated core material providing rigidity with fire, thermal, and acoustic performance.
Packaging & Delivery
Furthermore, our packaging utilizes polyethylene heat-shrinkable film for efficient handling, transport, and storage.
Additionally, a 40HQ container can hold approximately 1,800 – 2,500 m² depending on thickness and density.
Moreover, the lead time is 7 – 15 days after deposit.
Consequently, the port of loading is Tianjin, Qingdao, or Shanghai, China.
Why Choose TARCO Industry as Your Rock Wool Lamella Batts Supplier
Furthermore, TARCO Industry is a professional rock wool lamella batts manufacturer with full production capabilities, which means no middlemen and competitive pricing.
Additionally, our products are certified to EN 13162, GB/T 25975-2018, ASTM C612, AS/NZS 4859.1, and JIS A 9504 for global market access.
Moreover, we provide OEM/ODM services for density, thickness, dimensions, facing, and packaging.
Consequently, our production is ISO 9001-certified with batch testing and third-party inspection support.
Therefore, we serve customers in North America, Europe, Australia, New Zealand, Southeast Asia, the Middle East, and Oceania.
Finally, we offer short lead times and efficient logistics from major Chinese ports.
Frequently Asked Questions (FAQ)
What is rock wool lamella batts and where is it used?
Furthermore, rock wool lamella batts is a high-density insulation product made by cutting rock wool boards into strips and rotating them 90 degrees so that the fibres run perpendicular to the surface. Therefore, it is commonly used for curtain wall insulation, partition wall insulation, and sandwich panel core material.
What is the difference between rock wool board and rock wool lamella?
Moreover, rock wool board has fibres oriented parallel to the surface, while rock wool lamella has fibres oriented perpendicular to the surface. Consequently, lamella provides higher compressive strength and shear strength, making it suitable for load-bearing applications such as sandwich panel cores and curtain wall systems.
Is rock wool lamella batts fire resistant?
Yes. Rock wool lamella batts are inherently non-combustible and achieve Euroclass A1 fire classification per EN 13501-1, the highest possible fire rating. Therefore, it contributes no fuel to a fire and has a Flame Spread Index (FSI) of 0 and Smoke Developed Index (SDI) of 0 per ASTM E84.
Do your products comply with Australian and New Zealand standards?
Additionally, we test TARCO Industry rock wool lamella batts in accordance with AS/NZS 4859.1:2018 for thermal performance, AS 1530.1 for non-combustibility, and AS/NZS 1530.3 for fire hazard properties.
Are your products certified for the European market?
Furthermore, our rock wool lamella batts comply with EN 13162:2012+A1:2015 under the Construction Products Regulation (EU) No 305/2011. Additionally, the product is CE-labelled and Euroclass A1 certified.
Can you provide samples before bulk order?
In addition, TARCO Industry offers free samples of rock wool lamella batts for quality evaluation. Please contact our sales team for sample arrangements.
