Product Overview

Rockwool Slabs are high-performance mineral wool insulation boards made from natural volcanic basalt rock, engineered to deliver exceptional fire resistance, thermal insulation, and acoustic control. Designed for safety-critical environments, these slabs are non-combustible, dimensionally stable, and moisture-resistant — making them ideal for applications where both fire protection and energy efficiency are essential.

Key Features & Benefits

Fire Resistance (FRR up to 4 hours)
Certified to AS 1530.1 and EN 13501-1, Rockwool Slabs are non-combustible (Euroclass A1) and provide passive fire protection for up to 240 minutes. Commonly used to create fire-rated wall partitions, enclosures, and mechanical service areas.

Thermal Insulation
Thermal conductivity typically ranges between 0.033 – 0.037 W/m·K, delivering high energy efficiency in building envelopes. Helps reduce HVAC loads and maintain thermal comfort year-round.

Acoustic Performance
Due to its dense, open-fibre structure, Rockwool is widely used as an acoustic absorber. Reduces noise transmission in walls, floors, ceilings, and ducting systems – achieving high NRC (Noise Reduction Coefficient) values.

Water Repellency & Breathability
Rockwool is hydrophobic — it does not absorb water, but it permits vapour diffusion, helping prevent mould growth or internal condensation.

Durability & Dimensional Stability
Maintains shape and structure even under heat, compression, or moisture exposure. Suitable for exposed or concealed use.

Sustainable & Safe
Made from up to 97% natural stone, recyclable, and free from ozone-depleting substances. Non-itch, low-VOC, and safe to handle.

Product Variants (Typical Range):

• Thickness: 25 mm to 100 mm (standard), custom sizes available

• Density: 48, 64, 80, 100, 120, 150 kg/m³ depending on use

• Facing options: Foil-faced, black tissue-faced, or plain
  
  

Common Applications:

• Fire-rated internal partitions and ceilings (up to 4-hour FRR)

• Facade systems, rainscreens, and curtain walls

• Mechanical rooms and plant enclosures

• Acoustic enclosures and studio wall cavities

• Insulation for ducting systems and industrial piping

• Marine and offshore fire safety insulation
  
  

Compliance & Standards:

• AS 1530.1 / 3 – Fire Resistance

• EN 13501-1 – Euroclass A1 (non-combustible)

• ASTM C518 / ISO 8301 – Thermal performance

• ISO 1182 – Reaction to fire

• Green Star compatible (low VOC, recyclable)