Polymer-Modified Bitumen Root-Resistant Waterproof Membrane

Product Overview

A dual-functional membrane engineered for waterproofing and root penetration prevention. Composite structure features:

Reinforcement: Long-filament polyester mat / Copper composite carrier (Cu 0.4mm)

Coating: SBS-modified bitumen with specialized root inhibitors (e.g., flupyrsulfuron-methyl based)

Surfacing: PE film, fine sand, or mineral granules

Key Features

Certified Root Barrier
FLL-approved 25-year root resistance (EN 13948) without impeding vegetation growth

Structural Resilience

Puncture resistance: ≥500 N (EN 14418)

Tensile strength: ≥800 N/50mm (EN 12311-1)

Crack bridging: ≥4 mm @ -25°C (EN 14691)

Climate Performance
Service range: -30°C to +110°C (EN 1109)

Chemical Resistance
Withstands de-icing salts, fertilizers, and acidic soils (pH 3-11)

Installation Reliability
Torch-applied seams achieve 200% stronger bonds than substrate (EN 12316-1)

Technical Specifications

Applications

Green Roof Systems:
Intensive/extensive vegetated roofs

Underground Structures:
Garage decks, podium slabs with landscaping

Critical Infrastructure:
Highway greenways, railway embankments

Special Environments:
Coastal projects with salt exposure
Northern climates with freeze-thaw cycles