Monneli Insuwrap PVC 1500 TNL

1.5mm thick PVC Membrane for Underground Structures & Tanking System

Waterproofing of basements, tunnels and other underground structures
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Technical Information
Product Description

Insuwrap 1500 TNL is a homogeneous PVC (polyvinylchloride) sheet waterproofing membrane.

Appearance: PVC rolled sheet membrane
Membrane thickness: 1.50mm
Colour: Translucent, Twin or Single Colour

  • High tensile strength and elongation
  • Hot air weldable
  • Flexible throughout life span
  • Resistant to ageing
  • Long durability
  • High dimensional stability
  • Anti-Root membrane
  • Can be installed on wet and dry substrates
  • Designed to be used in hot climates
  • Resistant to natural aggressive mediums in ground water soil
Compiliance Standard

Tested according to testing requirements of DIN 16938, DIN 16730 and SIA 280/10,11,12,15.

Packaging, Coverage / Consumption

Roll size: 2.10 m (roll width) x 20m (roll length)

Shelf Life & Storage

Rolls shall be stored in their original package, in horizontal position and under cool and dry conditions protected from direct sunlight and rain.

Insuwrap PVC membrane does not expire and has a very long life expectancy.

Ambient Air Temperature: +5°C - +60°C

Technical Properties
Test Performed Standard and Requirements Results
Thickness (mm) DIN 16938
1.50 mm
Mass   2.6 kg/m2
Tensile Strength N/ mm²
DIN 16938
>10.40 N/mm2
Both direction
≥ 15 N/mm2
DIN 16938
DIN 16730
Both directions
both directions
Thermal Stability
DIN 16938
6h / 80°C <2
both directions
Thermal Ageing DIN 16938
7d / 80°C change of tensile strength <±20%
Change of elongation <±20%
folding in cold at -20°C: no cracks

<10% both directions
<10% both directions
-30°C, no cracks

Slit Pressure Resistance SIA 280/4
1h / 5 bars (0.5N/ mm2) tight
Roots Resistance SIA 280/10
No root penetration ingrown root must die off
Combustibility SIA 280/11
Class V / smoke class 2
Water Vapour Diffusion
DIN 16730
Less than 30,000
Less than 21,000
Water Absorption SIA 280/12
8 months storage in water
<±6% folding in cold at -20°C,
no cracks
Compressive Strength SIA 280/13
48h / 7N / mm² tight
Puncture Resistance DIN 16730
Drop hammer 500g, no leak on falling from
Seam Strength SIA 280/15
No peeling or sliding of welded seam
Cold Bend DIN 16730
No cracks at -20°C
No cracks at -30°C
Durability of Water Tightness
against Chemicals
DIN 16938 Passed
Resistance to Algae & Rot DIN 16730
No roots penetration
No penetration, growth
dies off
Application Information
Instructions for use

Substrate Preparation

The surface of the concrete substrate shall be sound, clean, dry or wet, and uncontaminated.

This preparation shall be as such as to leave a sound exposed concrete surface free from dust, laitance and any delirious matter.

The gunite surface must not contain broken aggregates. Any leaks shall be sealed with Murex, a water plug mortar, or with Betocryl 60, a Polyurethane injection resin. The surface of the gunite and fine sprayed concrete must be cleaned (no loose stones, nails, wires, etc.).



  1. Install loosely laid PVC sheets over entire area so the light colour is at the visible side towards the substrate.

A. Horizontal Installation:

  1. Install the Geotextile membrane over the entire horizontal area before the PVC
    membrane in full accordance with manufacturer’s method statement
  2. Accurately align sheets and maintain uniform side and end laps of minimum dimensions required. Stagger end laps.
  3. Install the Geotextile membrane as a protection layer over the entire area above the PVC membrane followed by a minimum of 50mm cementitious screed

B. Vertical Applications:

  1. Install the Geotextile membrane over the entire vertical area in full accordance with manufacturer’s method statements
  2. Accurately align sheets and maintain uniform side and end laps of minimum dimensions required.
  3. Install the protection layer of Geotextile membrane above the PVC membrane over the entire area in full accordance with method statement.
  4. Secure top termination of waterproofing with continuous, PVC coated aluminium strip, and a suitable PU sealant as recommended by waterproofing manufacturer.

C. Seam Installation: Hot air welding and end laps of overlapping sheets according to manufacturer's method statement to ensure a watertight seam installation. Inspect outside edge of seams with pointed metal probe and ensure completed laps lay flat through one of the following methods:

  1. Method 1: All seams of installed waterproofing can be subject to pneumatic test at test pressure of 2.00 bars.
  2. Method 2: Testing the welded joint using a vacuum test machine

D. Any hole, resulting from construction activities, noted in installed membrane shall be repaired in accordance with manufacturer’s method statement.


A. Install corner details in accordance to waterproofing manufacturer's written instructions.

Use same welding system as specified for membrane.


A. General: Comply with manufacturer’s printed instructions. The injection system shall be installed by an experienced specialist applicator authorized in writing by manufacturer.

  1. Coordinate with the work of “Cast-in-Place Concrete” for installation of injection system components through concrete elements in basements similar to raft slab, vertical walls and columns.

B. Injection system shall be placed in 8-12 meter lengths with entry port and vent ends terminated using butterfly plastic shutter connectors and shall offer the user the option of flushing and re- injection.

C. Shutter connectors shall be placed in vertical elements adjacent to the joint.

D. The system shall be injected at least once, with the re-swellable injection resin, after completion of wall construction.


Do not directly apply the PVC membrane permanently on bitumen and plastics other than PVC, a separation layer of geotextile is required.

Additional Information
Important note

The information in this Technical Data Sheet is based on Colmef Monneli’s experience. Colmef Monneli does not accept any liability arising from the use of its products as it has no direct or continuous control over where or how its products are applied. All Colmef Monneli’s Data Sheets are updated on regular basis. It is the user’s responsibility to obtain the latest version.

additional materials
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Technical Properties Sheet
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