Excellent substrate material for APP or SBS modified bitumen membrane for roofing and waterproof.
Excellent substrate material for APP or SBS modified bitumen membrane for roofing and waterproof.
Advantages of Fiberglass in Modified Bitumen Membranes
1. High Tensile Strength & Dimensional Stability
Fiberglass offers superior tensile strength, preventing cracks and tears during installation and under thermal stress.
It resists elongation, ensuring the membrane maintains shape over time.
2. Excellent Fire Resistance
Being non-combustible, fiberglass enhances the fire performance of roofing membranes, making it ideal for buildings with strict fire safety requirements.
3. Chemical & Moisture Resistance
Impervious to rot, mold, and water absorption, ensuring long-term waterproofing performance.
Resists damage from alkalis, acids, and other environmental factors.
4. Lightweight & Easy Installation
Compared to polyester or other substrates, fiberglass-reinforced membranes are lighter, facilitating easier handling and faster installation.
5. Compatibility with APP & SBS Modifiers
Works well with both APP (plastic-modified) and SBS (rubber-modified) bitumen, providing flexibility (SBS) or high-temperature resistance (APP).
Ensures strong adhesion and uniform bitumen coating.
6. Long-Term Durability
Resists UV degradation (when properly surfaced with granules or coatings).
Performs well in extreme temperatures (-30°C to +100°C+).
Applications
Roofing Systems (Low-slope & flat roofs)
Waterproofing Membranes (Basements, tunnels, bridges)
Industrial & Commercial Buildings
Comparison with Other Substrates
| Property | Fiberglass | Polyester | Non-Woven Mat |
| Tensile Strength | Very High | High (but stretches) | Low |
| Puncture Resistance | Moderate | High | Low |
| Dimensional Stability | Excellent | Good (may stretch) | Poor |
| Fire Resistance | Best | Good | Moderate |
| Cost | Mid-Range | Higher | Lower |