Waterproof Tanking Membrane

SkilledBuild’s Waterproof Tanking Membrane is used for waterproofing structures below ground level and isolating damp walls above ground level.

This product is manufactured out of a high quality, high density polyethylene (HDPE) membrane and is installed by fixing the membrane mechanically to original wall/floor surfaces. This provides an air gap (drain cavity) between the membrane and the wall/floor, which allows any free water to run behind it.

Tanking and cellar conversion works must always be in accordance with the relevant Building Regulations or British Standards. SkilledBuild’s Waterproofing Tanking Membrane is suitable for use in accordance with BS8102:2009 to provide ‘Type C’ drained protection to structures below ground level, providing a Grade 3 or 4 dry environment suitable for domestic or commercial use.

Our Waterproof Tanking Membrane is also available as part of our Waterproof Tanking Membrane Kit, which contains all the materials required to undertake 40m2 of waterproofing at your property.

Size: Rolls of 2.0m x 20m (40m2)

Areas of Use:

Waterproofing below ground level
Isolating damp walls above ground level

Storage:

The Waterproof Tanking Membrane should be stored in dry conditions, avoiding sharp objects, direct sunlight and high temperatures.

Related Products:

Follow this link to visit Product Pages for Damp Proof Membranes and other Damp Proof Membrane products.

Installation:

For a detailed guide to installing Waterproof Tanking Membrane, visit our Product Data Sheet.

Where Waterproof Tanking Membrane is installed in basements it is essential that the Waterproof Tanking Membrane is used in conjunction with a suitable sump and pump facility, unless passive drainage is available. It is essential that the sump and pump facility is maintained throughout the lifetime of the membrane installation.

Where there is a lack of natural ventilation it may be necessary to consider should also be given to providing an adequate means of condensation control.

Key Benefits of our Waterproof Tanking Membrane:

Use to create dry and habitable living spaces in areas suffering from damp or wet conditions.
Little or no damage to existing structure.
Quick to install, requiring little preparation.
Low and high temperature tolerance.
Decoration can be applied immediately after installation.
When used as a floor membrane, insulation, under floor heating, screed and floating floors can all be accommodated.
Resistant to water, rot, salt, roots and contaminants.
Easily malleable and cut with scissors for application around windows doors and services.

Related Links:

For more information on the Waterproof Tanking Membrane product, please visit our Product Data Sheet.

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How do I install Waterproof Tanking Membrane?

For a detailed guide to installing Waterproof Tanking Membrane, visit our Product Data Sheet.

Preparation:

Remove and renew contaminated or loose plaster.
Existing moulds or fungi should be treated with an appropriate biocide, such as Skilled Build’s Mould Steriliser and Killer.
Clear the floor of oil and loose material. Level out any sharp edges and large depressions.
Determine the drainage design and implement this to test it before laying the Waterproof Tanking Membrane.

Fixing the Membrane:

The Waterproof Tanking Membrane can be fitted against the wall or floor horizontally or vertically.
Hang the membrane down the wall and using drill the centre of a stud near the top edge of the membrane, to a depth greater than the fixing length.
Push the fixing into the hole until it is flush in the stud.
Ensure that the membrane is kept level and taught to avoid ripples.
The number of additional fixing plugs that need to be fitted is dependent on the type of wall finish. Timber battens need 450mm centres vertically and 600mm horizontally. Free standing timber/metal frames and free standing walls do not require specific fixing centres. In this instance use sufficient fixings to ensure the membrane is tight to the wall, paying attention to corners and revels.
If fixing the membrane vertically, subsequent sheets should overlap by at least the width of the flange (the strip of membrane running along the edge with no studs. Vertical joints need to be sealed with Waterproofing Tape or Waterproofing Rope.
If fixing the membrane horizontally, joints should be stud to stud with the upper sheet positioned against the wall and the lower sheet overlapping in front of it by at least 2 studs. Seal the joints using Waterproofing Tape or Waterproofing Rope.
Where the Waterproof Tanking Membrane is installed above the Damp Proof Course level, leave a 10mm gap at the top and a 20mm gap at the base of the wall in order to provide a ventilated system. It should be finished with off-set or ventilated cappings or skirtings.

Floors & Wall/Floor Joints:

Cut the membrane at floor and wall joints so it is flush and seal the gap with Waterproofing Corner Tape.

Services:

To seal services in walls and floors, cut the Waterproof Tanking Membrane around them and seal using Waterproofing Rope and Waterproofing Corner Tape.

Please Note

When installing the Waterproof Tanking Membrane in basements, it is essential that it is used in conjunction with a suitable sump and pump facility (unless passive drainage is available).
It may also be necessary to consider how condensation will be controlled where there is a lack of natural ventilation.

The Waterproof Tanking Membrane has no specific hazard specification. However, general precautions should be taken in the use of the associated equipment such as drills, hammers etc. and working in confined spaces.

The Waterproof Tanking Membrane should be stored in dry conditions, avoiding sharp objects, direct sunlight and high temperatures.

Waterproof Tanking Membrane delivery takes between 3 and 5 days.