5 cm 120 kg/m³ Rock Wool
As the density of insulation materials increases, both their mechanical strength and acoustic insulation performance improve. 5 cm 120 kg/m³ rock wool is a high-density insulation board designed to provide long-lasting durability on rigid surfaces while delivering excellent thermal and sound insulation.
Its A1 non-combustible fire classification makes it a reliable choice for projects where fire safety is a top priority.
What is 5 cm 120 kg/m³ Rock Wool?
This insulation board is manufactured from melted basalt rock fibers and has a density of 120 kg/m³ with a thickness of 5 cm. Its high density provides excellent resistance to compression and impact, making it suitable for demanding construction and industrial applications.
It is commonly used behind exterior cladding systems, in industrial facilities, fire barrier systems, recording studios, and other environments where durability and acoustic performance are 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 35–55 dB (depending on the application)
- Temperature Resistance: Maintains its structural integrity at temperatures of up to 1,000°C
Applications
Exterior Wall Cladding Systems
Provides excellent insulation and mechanical strength for facade systems requiring enhanced durability.
Industrial Facilities
Suitable for furnaces, boiler rooms, mechanical rooms, and other high-temperature environments.
Fire Barrier Systems
Ideal for fire walls, escape corridors, and passive fire protection applications.
Acoustic Insulation Projects
Widely used in recording studios, cinemas, concert halls, and other spaces requiring superior sound control.
Roof and Ceiling Insulation
Delivers high-performance thermal insulation while contributing to improved fire safety.
Advantages
✔ High mechanical strength with excellent resistance to impact and compression
✔ Superior sound insulation thanks to its dense fiber structure
✔ A1-rated non-combustible material for maximum fire protection
✔ Excellent thermal insulation for improved energy efficiency
✔ Long service life with resistance to moisture, mold, and pests
Installation Tips
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Ensure the installation surface is clean, dry, and structurally sound.
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Secure the insulation boards using mechanical fasteners or specialized insulation adhesives.
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Carefully seal all joints to reduce thermal bridging.
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In exterior applications, always protect the insulation with cladding, render, or another suitable finishing system.
Frequently Asked Questions (FAQ)
Where is 5 cm 120 kg/m³ rock wool typically used?
It is commonly used in exterior wall cladding systems, industrial buildings, fire barriers, acoustic insulation projects, and roof insulation applications.
What is the difference between 120 kg/m³ and 150 kg/m³ rock wool?
150 kg/m³ rock wool offers greater rigidity and higher compressive strength, while 120 kg/m³ rock wool provides an excellent balance between durability, flexibility, and ease of installation.
Is it fire resistant?
Yes. It is classified as A1 non-combustible and maintains its structural integrity at temperatures of up to 1,000°C.
How effective is its sound insulation performance?
Its dense fiber structure significantly reduces airborne noise, making it an excellent choice for applications requiring high levels of acoustic insulation.