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PermaSEAL 3 Eco Floor Tanking Membrane 40m²

£96.50 Ex VAT
£115.80 Inc VAT
A high quality recycled cavity drain membrane manufactured from 100% recycled HDPE, suitable for use above ground damp proofing floors.

Recycled 3mm Floor Membrane

PermaSEAL 3 Eco Floor is a high quality, slimline floor tanking membrane manufactured from 100% recycled HDPE. It can be used for damp proofing floors in new or existing buildings. Our floor membrane is used above ground, over a contaminated or damp background before flooring systems are installed. The recycled membrane’s 3mm stud profile provides a small air gap above the floor for moisture movement and evaporation with minimal impact on the end floor finish level.


Our recycled 3mm Eco Floor Tanking Membrane can be used in the following applications:

  • Above ground damp proofing of floors in renovations
  • Isolation of new “green” concrete from floor finishes
  • Isolation of contaminated floors above ground level

Note: All floor membranes should be permanently protected against UV Light. Failure to do this will dramatically decrease the service life of the product.

Benefits of PermaSEAL 3 Eco Floor Membrane

The PermaSEAL 3 Eco Floor membrane delivers many benefits.

Outstanding Performance

Whilst being made from 100% recycled raw material, PermaSEAL 3 Eco Floor is still manufactured with performance in mind. It is made to a higher density than other membranes in its class which increases its compressive loading stability. This makes it ideal for flooring applications. It is guaranteed for 30 years and has a life expectancy of at least 50 years (DIN 9001:2000). As an inert product, the Eco membrane is highly resistant to water and a range of contaminants. It’s easy to install too – you can even cut the membrane to size using scissors.

Environmentally friendly floor membranes - how and why it matters

Part of Permagard’s mission is to provide our clients with quality recycled products wherever possible. By using recycled plastic, we save resources, water, time, energy, and reduce emissions. It also stops the plastic used in our Eco membranes going straight to landfill. In addition, any unused membrane can be recycled again as HDPE can be recycled up to 10 times!

The Eco Floor Membrane is a premium quality product that is better for the environment. It is manufactured from recycled HDPE from sources such as:

  • Milk bottles
  • Shampoo and detergent bottles
  • Plastic carrier bags
  • Food containers
  • Pipes and pipe fittings
  • Plastic trays
  • IBC containers
  • Wheelie bins

Installing PermaSEAL Eco Floor Membrane

The membrane is simply unrolled to the edge of the floor. The next sheet is then run alongside the first piece. Place the non-studded flange over the top of the previous sheet to create an overlap joint. This joint is now sealed with PermaSEAL Overtape to stop moisture and vapour permeating to the floor finish.


Once the Eco Floor Tanking membrane has been installed, you need to protect it. It can accommodate insulation, underfloor heating, screed and floating floors.

PermaSEAL - Complete Solutions. Made Possible.

You can use our PermaSEAL3 Eco Floor Membrane safe in the knowledge that you are doing your bit for the environment whilst guaranteeing the highest quality product. If you have any questions about installing PermaSEAL damp proofing membranes or damp proofing in general our experts are on hand to provide free advice. Simply call us on 0117 982 3282.

Browse our damp proofing membranes or read our guide to internal damp proofing.


  • Made from 100% recycled materials
  • High compressive loading stability
  • Highly resistant to water, alkalis, saline solutions and organic acids and is not affected by minerals
  • Resistant to bacteria, fungi, and other small organisms
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