5 cm 50 kg/m³ Rock Wool
Every construction project has different insulation requirements. In some applications, lightweight construction and cost efficiency are more important than high mechanical strength. 5 cm 50 kg/m³ rock wool offers an economical and easy-to-install insulation solution thanks to its lower density.
With its A1 non-combustible fire classification, it also provides outstanding fire safety for residential and commercial buildings.
What is 5 cm 50 kg/m³ Rock Wool?
This insulation board is manufactured from melted basalt rock fibers and features a thickness of 5 cm with a density of 50 kg/m³. Its lower density makes it lightweight, easy to transport, and simple to install.
It is commonly used in facades, roofs, ceilings, and interior partition walls where structural loads are relatively low and cost-effective insulation is preferred.
Technical Specifications
- Thickness: 5 cm
- Density: 50 kg/m³
- Thermal Conductivity (λ): Approximately 0.038–0.043 W/mK
- Fire Classification:A1 (Non-combustible)
- Sound Insulation Performance: Approximately 20–35 dB (depending on the application)
- Temperature Resistance: Maintains its structural integrity at temperatures of up to 1,000°C
Applications
Exterior Wall Insulation
Its lightweight structure minimizes additional load on facade systems while improving thermal efficiency.
Roof Insulation
Suitable for lightweight roofing projects requiring effective thermal insulation.
Interior Partition Walls
Provides an economical solution for improving both thermal and acoustic insulation.
Ceiling Insulation
Ideal for suspended ceilings and lightweight ceiling systems.
Fire Protection Applications
Its A1 non-combustible rating makes it a dependable material for passive fire protection systems.
Advantages
✔ Cost-effective insulation solution for budget-conscious projects
✔ Lightweight construction for easier transportation and faster installation
✔ A1-rated non-combustible material for enhanced fire safety
✔ Provides reliable thermal and acoustic insulation
✔ Lower density reduces transportation and storage costs
Installation Tips
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Prepare a clean, dry, and level surface before installation.
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Secure the boards using steel anchors or appropriate insulation adhesive.
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Carefully seal all joints to minimize thermal bridging.
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In exterior applications, always protect the insulation with render, cladding, or another suitable finishing system.
Frequently Asked Questions (FAQ)
Where is 5 cm 50 kg/m³ rock wool commonly used?
It is widely used in exterior wall insulation, roofs, interior partition walls, suspended ceilings, and other lightweight insulation systems.
What is the difference between 50 kg/m³ and 80 kg/m³ rock wool?
The 50 kg/m³ version is lighter and more economical, while 80 kg/m³ rock wool offers higher mechanical strength, improved acoustic performance, and greater durability.
Is it fire resistant?
Yes. It is classified as A1 non-combustible and can maintain its structural integrity at temperatures of up to 1,000°C.
Is its sound insulation performance sufficient?
It provides effective acoustic insulation for standard construction projects. For applications requiring higher sound insulation performance, a higher-density rock wool product is generally recommended.