5 cm 100 kg/m³ Rock Wool

Selecting the right insulation material is essential for achieving the ideal balance between performance and cost. 5 cm 100 kg/m³ rock wool provides an excellent combination of moderate density, reliable mechanical strength, and effective thermal and acoustic insulation.

Its A1 non-combustible fire classification enhances fire safety, while its relatively lightweight construction simplifies installation. These qualities make it a dependable choice for exterior wall insulation, roof systems, partition walls, ceiling applications, and passive fire protection projects.

What is 5 cm 100 kg/m³ Rock Wool?

This insulation board is manufactured from melted basalt rock fibers and features a density of 100 kg/m³ with a thickness of 5 cm. Its medium-density composition offers an ideal balance between durability and ease of handling, providing long-lasting insulation performance without adding excessive structural weight.

It is suitable for a wide variety of residential, commercial, and industrial applications where thermal efficiency, acoustic comfort, and fire resistance are required.

Technical Specifications

  • Thickness: 5 cm
  • Density: 100 kg/m³
  • Thermal Conductivity (λ): Approximately 0.036–0.041 W/mK
  • Fire Classification:A1 (Non-combustible)
  • Sound Insulation Performance: Approximately 30–50 dB (depending on the application)
  • Temperature Resistance: Maintains its structural integrity at temperatures of up to 1,000°C

Applications

Exterior Wall Insulation

Provides lightweight, energy-efficient insulation for exterior facade systems.

Roof Insulation

Helps reduce heat loss and improve overall building energy efficiency.

Interior Partition Walls

Enhances acoustic comfort by reducing sound transmission between spaces.

Ceiling Insulation

An excellent choice for suspended ceilings requiring both thermal and sound insulation.

Fire Protection Applications

Suitable for passive fire protection systems, including escape routes and fire-rated wall assemblies.

Advantages

✔ Well-balanced combination of strength and lightweight performance

✔ Excellent thermal and acoustic insulation for improved energy efficiency and indoor comfort

✔ A1-rated non-combustible material for superior fire protection

✔ Cost-effective alternative to higher-density insulation boards

✔ Long-lasting durability with excellent resistance to moisture, mold, and pests

Installation Tips

  • Install on clean, dry, and smooth surfaces to ensure optimal adhesion and performance.
  • Secure the insulation boards using steel anchors or suitable insulation adhesive.
  • Carefully seal all joints to minimize thermal bridging.
  • For exterior applications, always protect the insulation with render, cladding, or another approved finishing system.

Frequently Asked Questions (FAQ)

Where can 5 cm 100 kg/m³ rock wool be used?

It is suitable for exterior wall insulation, roof insulation, interior partition walls, ceiling systems, and passive fire protection applications.

What is the difference between 80 kg/m³ and 100 kg/m³ rock wool?

100 kg/m³ rock wool provides greater mechanical strength and improved acoustic insulation compared to 80 kg/m³ rock wool, making it a better choice for applications requiring enhanced durability.

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.

Is it cost-effective?

Yes. It offers an excellent balance between performance and price, making it a cost-efficient solution for many standard insulation projects while remaining more affordable than higher-density alternatives.