8mm Meshed Membrane - Clear HDPE Cavity Drain Membrane with Integrated Mesh - Biokil Crown

8mm Meshed Membrane - Clear HDPE Cavity Drain Membrane with Integrated Mesh - Biokil CrownClear HDPE Cavity Drain Membrane with Integrated Mesh for Above and Below Ground Waterproofing Biokil Crown 8mm Meshed Membrane Clear is a high quality, high density polyethylene (HDPE) cavity drainage membrane featuring an integrated mesh surface. This provides a secure mechanical key for direct plaster or render finishes. With an 8mm stud profile, it is suitable for internal waterproofing and damp proofing applications above and below ground,

Clear HDPE Cavity Drain Membrane with Integrated Mesh for Above and Below Ground Waterproofing

Biokil Crown 8mm Meshed Membrane Clear is a high-quality, high-density polyethylene (HDPE) cavity drainage membrane featuring an integrated mesh surface. This provides a secure mechanical key for direct plaster or render finishes. With an 8mm stud profile, it is suitable for internal waterproofing and damp-proofing applications above and below ground, including basements, vaults, and retaining walls. The clear construction enables substrate visibility during installation, ensuring accurate fixing and detailing.

Key Features & Benefits

• Mesh-Faced Surface: Provides a strong bond for plaster, lime mortars, or renders without the need for additional boarding.
• 8mm Stud Profile: Creates an effective air and drainage gap behind the membrane.
• Clear HDPE Construction: Allows visual inspection of the substrate during and after installation.
• Damp & Salt Isolation: Physically separates wall finishes from damp, contaminated, or friable substrates.
• Internal Use: Ideal for both heritage refurbishments and modern waterproofing systems in basements or ground floors.

Product Details

• Material: High-Density Polyethylene (HDPE) with welded mesh layer
• Stud Height: 8mm
• Thickness: Approx. 1.0mm
• Colour: Clear with white mesh face
• Roll Size: Typically 2m x 20m (40m²)
• Weight: Approx. 0.65 kg/m²
• Installation: Fix with Brick Plugs with Seals or Nu-Seal Plugs at 250mm centres
• Finishing: Direct plaster, render, or lime mortar onto the mesh face
• SKU: BCMESH8CLR

Application Instructions

1. Surface Prep: Remove loose material and ensure surface is reasonably flat. Full substrate drying is not required.
2. Fixing: Secure membrane with plugs and integrated seals at regular intervals. Mesh side should face into the room.
3. Joint Sealing: Overlap the mesh and seal membrane joints with Sealing Tape or Overtape for a watertight finish.
4. Apply Finish: Directly render, plaster, or apply lime mortar to the mesh surface as per manufacturer guidance.

Limitations

• Not suitable for direct floor use — use compatible floor membranes for horizontal applications.
• Protect from UV exposure before covering with finish.

Health & Safety

Non-hazardous. Wear gloves during installation to avoid abrasions. Refer to the product’s Safety Data Sheet (SDS) for full handling information.