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Sika Index Defend Antiroot 4mm Waterproofing Roll (10m)

High-Performance Root Resistant Waterproofing

Defend Antiroot 10 Polyester is a premium APP modified bituminous membrane specifically engineered for areas in direct contact with soil. Featuring a specialized anti-root additive, this 4mm torch-applied membrane provides a permanent barrier against root penetration, making it the industry standard for green roofing and landscaping projects.

Key Applications

  • Roof Gardens & Planters: Final waterproofing layer in direct contact with growing media.
  • Sunken Roofs: Ideal for underground structures and landscaping.
  • Ballasted Systems: Flat roofs under gravel or protective paving.
  • Below-Ground Protection: Resists humic acids and fertilizers found in soil.

Technical Specifications & Benefits

  • Durability: Reinforced with heavy, dimensionally stable non-woven polyester.
  • Flexibility: Maintains performance in cold temperatures down to -10°C.
  • Superior Strength: High tensile strength and elongation for structural movement.
  • Easy Installation: Underside polyethylene burn-off film ensures efficient torch application.
  • Chemical Resistance: Protected against organic degradation and soil chemicals.

Ensure a professional finish by selecting the correct Sika primer to suit your substrate and local weather conditions.

Technical Documentation

Download Product Data Sheet (PDS)

Source: Technical data verified by Sika Index Waterproofing Systems