Description
The Geoworks HDPE 1.0mm Impermeable Geomembrane is a heavy-duty liner engineered for demanding civil engineering, environmental containment and water management projects where enhanced puncture resistance and long-term durability are required.
With a thickness of 1.0mm, this heavy-duty geomembrane offers increased puncture resistance and durability compared to thinner membranes, making it well suited to larger commercial developments and projects exposed to more challenging installation conditions. The material is fully weldable, allowing secure watertight joints to be formed and providing confidence in long-term performance.
Common applications include attenuation tank encapsulation, Sustainable Drainage Systems (SuDS), ponds, lagoons, hydrocarbon containment, gas barriers and environmental protection schemes. For optimum protection during installation, the membrane is typically paired with a 300gsm non-woven protection fleece and appropriate jointing accessories.
Wondering whether you need a 1.0mm geomembrane or if 0.6mm would be sufficient? Read our guide on 0.6mm vs 1.0mm HDPE Geomembrane for a detailed comparison of typical applications and key differences.
Key Features
- Premium 1.0mm high-density polyethylene (HDPE) geomembrane
- Fully weldable for secure impermeable joints
- Greater puncture resistance than thinner membranes
- Ideal for attenuation tank encapsulation
- Suitable for Sustainable Drainage Systems (SuDS)
- Excellent chemical and moisture resistance
- Designed for demanding civil engineering projects
- Suitable for containment and waterproofing applications
- Compatible with protection fleece and membrane jointing tapes
- Durable long-term performance in challenging environments
Typical Applications
- Attenuation tank encapsulation
- Sustainable Drainage Systems (SuDS)
- Stormwater storage installations
- Ponds and lagoons
- Hydrocarbon containment
- Environmental containment projects
- Gas barrier systems
- Root barrier installations
- Waterproofing applications
- Civil engineering and infrastructure works
Recommended Accessories
For a complete impermeable lining system, we recommend pairing this membrane with the following products:
- 0.6mm HDPE Geomembranes – suitable for projects where a lighter-duty impermeable liner is appropriate.
- 300gsm Protection Fleece – recommended to protect the geomembrane from puncture during installation and backfilling.
- Double-Sided Butyl Jointing Tape – ideal for sealing membrane overlaps.
- Single-Sided Jointing Tape – provides additional protection and reinforcement over membrane joints.
- Top Hat Units – designed to create watertight seals around pipe penetrations.
Delivery Information
This product is typically dispatched within 2–3 working days, subject to stock availability.
Please ensure the delivery location is suitable for a large goods vehicle and that appropriate offloading facilities or plant are available. If your site has restricted access or special delivery requirements, please contact us before ordering so suitable arrangements can be made.
- Product: Geoworks HDPE Impermeable Geomembrane
- Material: High Density Polyethylene (HDPE)
- Thickness: 1.0mm
- Roll Width: 2.5m
- Roll Length: 35m
- Roll Area: 87.5m²
- Surface: Smooth / Smooth
- Weldable: Yes
- Colour: Black
- Typical Use: Waterproofing, attenuation tanks and containment systems
What is a 1.0mm HDPE geomembrane used for?
It is commonly used for attenuation tanks, SuDS, lagoons, ponds, containment systems and waterproofing projects requiring a durable impermeable barrier.
Why choose 1.0mm instead of 0.6mm?
The 1.0mm membrane provides increased puncture resistance and robustness, making it suitable for more demanding applications or where additional durability is preferred.
Can this membrane be welded?
Yes. It is fully weldable and designed to create secure watertight joints in engineered lining systems.
Should I use protection fleece?
Yes. For attenuation tank encapsulation and similar installations, we recommend installing a 300gsm non-woven protection fleece above and below the membrane to help protect against puncture damage.
Is this suitable for SuDS projects?
Yes. The membrane is widely suitable for Sustainable Drainage Systems (SuDS), including attenuation tanks and stormwater management schemes.
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