Root Barrier Waterproof HDPE Geomembrane Liner Sheet for Commercial Roof Garden Insulation
Root Barrier Waterproof HDPE Geomembrane Liner for Commercial Roof Garden Insulation
Trapped moisture and structural water leaks can silently compromise the safety of any concrete building foundation or green roof. Our architectural-grade waterproof geomembrane sheet provides a dense, continuous shield that keeps structural concrete dry and safe. This highly flexible damp proof membrane stops underground moisture from wicking upward into sub-floors, preventing mold and concrete decay. It features excellent elasticity, allowing the material to bridge minor concrete settling cracks without ripping or tearing. Engineered for extensive green roof insulation layers and deep building basements, this durable foundation wrap liner seals out dampness and blocks root penetration, guaranteeing long-term structural dryness.
Technical Specifications
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Thickness mm
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0.5
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0.75
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1.0
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1.25
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1.5
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2.0
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Tensile yield strength (vertical and horizontal) N/mm
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≥7
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≥11
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≥15
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≥18
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≥22
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≥29
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Tensile breaking strength (vertical and horizontal) N/mm
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≥13
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≥20
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≥27
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≥33
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≥40
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≥53
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Elongation at break (vertical and horizontal) %
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≥700
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Right angle tear strength (vertical and horizontal) N/mm
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≥62
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≥93
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≥125
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≥160
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≥190
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≥250
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Puncture strength N
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≥160
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≥240
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≥320
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≥400
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≥480
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≥640
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Carbon black content %
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2.0-3.0
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Why Choose Our Geomembranes?
- Stretches Without Snapping: The material features excellent multi-directional elasticity, allowing it to stretch and flex safely when building foundations settle over time.
- Tough Physical Root Defense: It forms a highly slick, dense barrier that forces aggressive plant and weed roots to turn away instead of piercing the sheet.
- Fume Free Indoor Safety: Formulated from pure polymer chains, our sheeting releases zero chemical odors, making it completely safe for residential under-slab use.
- Perfect Crease Folding: The fabric memory allows it to be folded tightly into sharp 90℃ foundation corners and wall seams without cracking or weakening the plastic.
Primary Applications
- Green Roof Root Insulation: Laid beneath urban rooftop gardens to stop aggressive plant roots from piercing the building's structural concrete ceiling.
- Basement Slab Damp Proofing: Placed directly over the gravel bed before pouring concrete basements to stop underground moisture from rising into the building floor.
- Underground Tunnel Linings: Lining concrete highway and railway tunnel vaults to deflect weeping groundwater into drainage channels.
- Retaining Wall Backing: Fixed against buried concrete retaining walls to prevent wet dirt from transferring dampness into interior building walls.
Frequently Asked Questions (FAQ)
Q1: What is the difference between smooth geomembrane and textured geomembrane?
A: Smooth liners are standard for flat pond bottoms because they are easy to clean. Textured liners have a rough surface to prevent soil or gravel from sliding down steep slopes.
Q2: Is your Pond Liner safe for raising fish and shrimp?
A: Yes, our liner is made from non-toxic, eco-friendly virgin polyethylene resins. It will not leach harmful chemicals into the water, making it perfectly safe for aquatic life.
Q3: How do you connect the sheets of this Geomembrane Sheet on site?
A: The sheets are joined together using professional hot-wedge welding machines, which melt the edges of the liner together to create a 100% leak-proof, continuous plastic seam.
Q4: Can this Black Geomembrane stay exposed to the weather without being buried under dirt?
A: Yes, because it is packed with premium carbon black stabilizers, our impermeable liner can handle years of direct sunlight and wind exposure without becoming brittle or rotting away.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.