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Rock wool strip
Professional matching new thermal insulation materials
The rockwool strips specially designed for exterior wall thermal insulation firebreaks are engineered and manufactured specifically to enhance the fire resistance of building exterior wall insulation systems. This product is used in conjunction with exterior wall insulation materials that do not meet Class A fire rating standards, serving as a firebreak to improve the overall fire resistance of building exteriors. It boasts high compressive and tensile strength, low water and moisture absorption, excellent dimensional stability, excellent aging resistance, and does not exhibit thermal expansion or contraction.
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Rock wool strip
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Product Details

The rockwool strips specially designed for exterior wall thermal insulation firebreaks are engineered and manufactured specifically to enhance the fire resistance of building exterior wall insulation systems. This product is used in conjunction with exterior wall insulation materials that do not meet Class A fire rating standards, serving as a firebreak to improve the overall fire resistance of building exteriors. It boasts high compressive and tensile strength, low water and moisture absorption, excellent dimensional stability, excellent aging resistance, and does not undergo thermal expansion or contraction.

Product Model | Rock wool strip | |
Length × Width (mm) | 1200×150 | 1200×200 |
Apparent density (kg/m³) | 100 | 100 |
Thickness (mm) | 30-200 | 30-200 |
Other specifications can be customized according to customer requirements.

Product Performance | Unit | TSWL100 | Standard |
Compressive strength (10% strain) | kPa | ≥40 | GB/T13480 |
Tensile adhesion strength (perpendicular to the surface) | kPa | ≥ 80 | JG149-2003 |
Thermal conductivity (25℃) | W/(m·K) | ≤0.048 | GB/T10295 |
Combustion performance | - | Level A1 | GB/T8624 |
Water-repellent rate | % | ≥99 | GB/T10299 |
Acidity coefficient | - | ≥1.8 | GB/T5480 |
Moisture absorption rate of quality | % | ≤1.0 | GB/T5480 |
Short-term water absorption (partially submerged, 24h) | kg/m² | ≤1.0 | GB/T25975-2010 |
Long-term water absorption (partially submerged, 28 days) | kg/m² | ≤3.0 | GB/T25975-2010 |
Noise Reduction Coefficient (NRC) | - | ≥0.6 | GB/T18696 |
Dimensional stability | % | ≤1.0 | GB/T8811 |
Thickness deviation | mm | ±3 | GB/T5480 |
Right angle | mm/m | ≤5 | GB/T5480 |
Flatness | mm | ≤6 | GB/T25975-2010 |
The above data is for reference only, and the company reserves the right to enhance product performance as production equipment and processes are improved.

1. Used in conjunction with non-A-grade fire-resistant insulation materials such as polystyrene boards and extruded polystyrene boards as a firebreak, thereby enhancing the fire resistance of exterior wall insulation systems.
2. For thin-coat exterior wall insulation systems, the fiber orientation should be perpendicular to the surface of the base wall, thereby enhancing the system’s tensile and compressive strength.

Rock wool strips are packaged either on pallets with plastic film or in cardboard boxes, and can also be bundled for easy handling, transportation, and storage. The product should be stored indoors in a dry, well-ventilated area or covered with waterproof materials.
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Phone: +86-535-6803088 / +86-13225458207
Fax: +86-535-6824890
Email:ythuamei@yeah.net
Address: No. 29, Zhichu Road, Zhifu District, Yantai City
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