5 cm 120 kg/m³ Rock Wool
Choosing the right insulation material requires balancing performance, durability, and cost. 5 cm 120 kg/m³ rock wool delivers excellent thermal and acoustic insulation while offering high mechanical strength and outstanding fire resistance.
These characteristics make it a reliable solution for a wide range of applications, from exterior wall insulation systems to industrial facilities and passive fire protection projects.
What is 5 cm 120 kg/m³ Rock Wool?
5 cm 120 kg/m³ rock wool is manufactured from melted basalt rock fibers and features a density of 120 kg/m³ with a thickness of 5 cm. Its higher density improves resistance to compression and mechanical stress, while its low thermal conductivity helps minimize heat loss and improve energy efficiency.
The material is classified as A1 non-combustible, providing superior fire protection for projects where fire safety is essential.
Technical Specifications
- Thickness: 5 cm
- Density: 120 kg/m³
- Thermal Conductivity (λ): Approximately 0.035–0.040 W/mK
- Fire Classification:A1 (Non-combustible)
- Sound Insulation Performance: Approximately 35–50 dB (depending on the application)
- Temperature Resistance: Maintains its structural integrity at temperatures of up to 1,000°C
Applications
Exterior Wall Insulation
Provides excellent thermal and acoustic insulation for high-performance facade systems.
Interior Partition Walls
Reduces sound transmission while improving thermal comfort between rooms.
Industrial Buildings
Suitable for environments exposed to moderate to heavy mechanical loads and elevated temperatures.
Fire Protection Systems
Ideal for escape routes, fire-rated walls, and other passive fire protection applications.
Roof and Ceiling Insulation
Helps minimize heat loss while improving overall building energy efficiency.
Advantages
✔ Excellent thermal and acoustic insulation for improved energy efficiency
✔ High mechanical strength with good resistance to impact and compression
✔ A1-rated non-combustible material for superior fire safety
✔ More cost-effective than 150 kg/m³ rock wool while providing excellent overall performance
✔ Long service life with outstanding resistance to moisture, mold, and pests
Installation Tips
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Ensure installation surfaces are clean, dry, and level for optimal adhesion.
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Secure the insulation boards using steel anchors or approved insulation adhesive.
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Carefully seal all joints to reduce thermal bridging.
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For exterior applications, always protect the insulation with render, cladding, or another suitable finishing system.
Frequently Asked Questions (FAQ)
Where can 5 cm 120 kg/m³ rock wool be used?
It is suitable for exterior wall insulation, interior partition walls, industrial buildings, roof insulation, ceiling systems, and passive fire protection applications.
What is the difference between 120 kg/m³ and 150 kg/m³ rock wool?
120 kg/m³ rock wool is lighter and more economical, making it suitable for many standard and commercial applications, while 150 kg/m³ rock wool offers higher compressive strength and superior performance in demanding industrial environments.
Is it resistant to moisture?
Yes. It has water-repellent properties, but in exterior applications it should always be protected with an appropriate render, cladding, or other weather-resistant finishing system.
How fire resistant is it?
It is classified as A1 non-combustible and maintains its structural integrity at temperatures of up to 1,000°C, making it an excellent choice for fire-safe construction projects.