FlatRoof (HardRock 30)
Category: Rockwool Insulation
Overview
ROCKWOOL HardRock 30 is a rigid stone wool insulation slab used as the base layer in FlatRoof Lite membrane roofing systems. The stone wool core is formed from basalt rock and recycled slag, delivering non-combustible Class A1 fire performance combined with thermal and acoustic insulation. FM Global approval demonstrates compliance with insurance underwriter requirements for commercial roofing.
Technical Specifications
| Material | Stone Wool (basalt + recycled slag) |
| Density | 90 – 120 kg/m³ |
| Thickness | 50 / 80 / 100 / 120 / 150 / 200 mm |
| Compressive Strength | ≥ 30 kPa (EN 826) |
| Water Absorption | < 1.0 kg/m² (EN 1609) |
| Thermal Conductivity | 0.038 W/m·K |
| Fire Class | EN 13501-1 Class A1 |
| Standard | FM Global 4450 |
Applications
- FlatRoof Lite base layer
- membrane roofing on metal and concrete deck
- re-roofing systems
- industrial facility roofs
Key Features
- Non-combustible Class A1 (highest fire rating)
- FM Global approved
- moisture-repellent stone wool
- dimensionally stable under long-term compression
- excellent R-value
For technical inquiries & custom orders: supakorn@stico.co.th | Tel: 02-035-9589
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