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Insu® Felt

Geotextile Filtration, Separation & Protection Layer
Insu® Felt Series is a high-performance geotextile layer engineered for filtration, separation, protection and drainage applications in waterproofing, landscaping and green roof systems. Designed to allow efficient water permeability while preventing soil migration and clogging, the system enhances long-term drainage performance and protects underlying waterproofing membranes.

The geotextile layer acts as a separation barrier between soil, drainage cells, aggregates and structural substrates, helping maintain system integrity while improving water flow efficiency. Its durable non-woven construction provides excellent filtration performance for planter boxes, rooftop landscapes, retaining walls and sub-soil drainage systems.

Suitable for green roofs, podium decks, drainage layers and waterproofing protection applications, Insu® Felt Series helps reduce membrane damage caused by abrasion, puncture and construction activities while maintaining effective water discharge.

Manufactured from durable and UV-stable materials, the system is resistant to chemical exposure and environmental degradation, making it suitable for long-term exterior landscape and construction applications.

Available in multiple configurations and thicknesses, Insu® Felt Series provides a versatile geotextile solution for modern green infrastructure and waterproofing systems.

Applications:
 

  • Roof gardens and planter boxes

  • Retaining walls and podium decks

  • Drainage and filtration layers

  • Waterproofing protection layer

Benefits:
 

  • High permeability for effective drainage

  • UV-stable and chemical-resistant

  • Prevents clogging and membrane damage

  • Durable and eco-friendly material

Frequently Asked Questions

1. How does the system improve drainage?

The geotextile material allows water to pass through while preventing fine soil particles from clogging the drainage layer.

2. Can the wedges be stacked?

Yes. The wedges can be stacked progressively to correct slopes up to approximately 7°.

3. Is a fire-rated version available?

Yes. Selected Insu® Felt Series configurations are available in fire-rated versions to suit project-specific fire performance and compliance requirements. These are suitable for applications where enhanced fire resistance is required within roofing, landscaping and waterproofing systems.
 

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