SELF-ADHESIVE WATERPROOFING MEMBRANE FOR STRUCTURAL ELEMENTS DEFENCE ADHESIVE
The self-adhesive membrane for the construction site protection of timber and CLT
DEFENCE ADHESIVE is a transparent self-adhesive membrane for protecting timber structural elements during transport and on site. Among temporary waterproofing membrane solutions, it combines water- and air-tightness with good vapour permeability — Sd 2.5 m — helping any trapped moisture to dry out. Ideal for prefabrication: application to the panel off site maximises construction site protection during transport and installation. Non-slip and resistant to abrasion and foot traffic.
Construction site protection is guaranteed for 12 weeks. Certified to EN 13984.
Technical data for DEFENCE ADHESIVE self-adhesive membrane
DEFENCE ADHESIVE is a solvent-free self-adhesive membrane made from EVA and PP non-woven fabric, with a mass per unit area of 220 g/m² and a thickness of 0.3 mm.
Once installed, it is virtually invisible: its transparency allows chalk line markings and installation holes on the panel to remain visible.
It can be repositioned during the first few minutes after application.
Key technical specifications (EN 13984):
— Water vapour permeability Sd: 2.5 m (EN 1931)
— Tensile strength MD/CD: > 120/80 N/50 mm (EN 12311-1)
— Resistance to nail tearing MD/CD: > 60/65 N
— Water tightness: compliant (EN 1928) · Air permeability: < 0.02 m³/(m²h50Pa)
— Reaction to fire: Class E (EN 13501-1) · Fire resistance on 120 mm CLT joint: EI 90 (EN 1363-4)
— UV stability: 336 h (3 months) · Weather exposure: 12 weeks
— Application temperature: +5/+25 °C · Storage temperature: -5/+35 °C
Membrane impermeabilizzanti autoadesive per elementi in legno: come si applicano?
DEFENCE ADHESIVE is applied directly to timber, CLT or OSB panels from +5 °C. The pre-cut release film is removed during installation, the membrane bonds by contact and can be repositioned during the first few minutes.
Self-adhesive membrane for construction site protection of CLT: how long does it last?
Protection of structural elements is guaranteed for 12 weeks of weather exposure. DEFENCE ADHESIVE is waterproof, airtight, yet vapour permeable — Sd 2.5 m — and resists abrasion and foot traffic on site. It is available in widths from 0.385 m to 1.55 m and, on request, in customised widths.
Construction site protection for timber panels: why choose a transparent membrane?
The transparency of DEFENCE ADHESIVE allows chalk line markings and installation holes to remain visible without removing the membrane, avoiding interruptions during construction work. The non-slip surface maintains safety when walking on installed elements.
Documents
-
Technical data sheets
- Technical data sheets Croatian
- Technical data sheets Czech
- Technical data sheets English
- Technical data sheets French
- Technical data sheets German
- Technical data sheets Greek
- Technical data sheets Hungarian
- Technical data sheets Italian
- Technical data sheets Polish
- Technical data sheets Portuguese
- Technical data sheets Romanian
- Technical data sheets Russian
- Technical data sheets Slovenian
- Technical data sheets Spanish
-
Xml-File WUFI
-
Recommendations for installation
-
Fire test report
DEFENCE ADHESIVE
| CODE | description | g/m² | liner | H
[m]
|
L
[m]
|
A
[m²]
|
pcs./pallet |
DOP/DOC
|
|---|---|---|---|---|---|---|---|---|
| DEFA200 | DEFENCE ADHESIVE 1.55m | 220 | 150/1400 | 1.55 | 50 | 77.5 | 35 | |
| DEFAS200 | DEFENCE ADHESIVE 200 STRIPE | 220 | 192.5/192.5 | 0.385 | 50 | 19.25 | 60 | |
| DEFA200490 | DEFENCE ADHESIVE 50 cm | 220 | 245/245 | 0.49 | 50 | 24.5 | 72 | |
| DEFA200990 | DEFENCE ADHESIVE 1m | 220 | 495/495 | 0.99 | 50 | 49.5 | 30 |
Technical Data
| Property | Standard | Tested Values | USC Conversion |
|---|---|---|---|
| Mass per unit area | EN 1849-2 | 220 g/m² | 0.72 oz/ft² |
| Thickness | EN 1849-2 | ca. 0,3 mm | ca. 12 mil |
| Water vapour transmission (Sd) | EN 1931 | 2,5 m | 1.399 US perm |
| Tensile strength MD/CD | EN 12311-1 | > 120 / 80 N/50mm | > 14 / 9 lbf/in |
| Elongation MD/CD | EN 12311-1 | > 40 / 40 % | - |
| Resistance to nail tearing MD/CD | EN 12310-1 | > 60 / 65 N | > 13 / 15 lbf |
| Watertightness | - | compliant | - |
| Resistance to penetration of air | EN 12114 | < 0,02 m³/(m²·h·50Pa) | < 0.001 cfm/ft² at 50Pa |
| Reaction to fire | EN 13501-1 | class E | - |
| Fire resistance rating on CLT joint* (1 ) | en 1366-4 | EI90 | - |
| Resistance to temperature | - | -40 / 80 °C | -40 / 176 °F |
| UV stability (2 ) | - | 336h (3 months) | - |
| Exposure to weather | - | 12 weeks | - |
| Density | - | ca. 740 kg/m³ | - |
| Water vapour resistance factor (μ) | - | ca. 10000 | - |
| Adhesion strength on OSB at 90° after 10 minutes | EN ISO 29862 | 2 N/10mm | 1.1 lbf/in |
| Adhesion strength on OSB at 180° after 10 minutes | EN ISO 29862 | 2 N/10mm | 1.1 lbf/in |
| Adhesion strength (average) of the overlap after 24 hours | EN 12316-2 | 13 N/50mm | 1.5 lbf/in |
| Shear adhesion strength of the overlap after 24 hours | EN 12317-2 | 95 N/50mm | 10.8 lbf/in |
| Storage temperature (3 ) | - | -5 / 35 °C | 23 / 95 °F |
| Application temperature | - | 5 / 25 °C | 41 / 77 °F |
| Solvents | - | no | - |
| VOC emissions | EN 16516 | very low | - |
Composition
| TOP LAYER | EVA functional film |
|---|---|
| BOTTOM LAYER | non-woven PP fabric |
| GLUE | acrylic dispersion without solvents |
| RELEASE LINER | removable plastic film |
Product specifications
DEFENCE ADHESIVE
Supply and installation of self-adhesive protective membrane for construction elements, Type DEFENCE ADHESIVE.
Composition
From top layer to bottom layer:
EVA coating;
non-woven PP fabric;
acrylic dispersion without solvents;
precut removable plastic film.
Properties
Mass per unit area [g/m²]: 220
Thickness [mm]: approx. 0,3
Water vapour transmission (Sd)[m]: 2,5
Tensile strength MD/CD [N/50 mm]: > 120/80
Elongation MD/CD [%]: > 40/40
Resistance to nail tearing MD/CD [N]: > 60/65
Watertightness: compliant
Reaction to fire: class E (EN 13501-1)
Fire resistance rating on plain CLT joint (120 mm) 3 mm joint: EI 90
Resistance to temperature [C°]: -40/+80
UV stability: 336h (3 months)
Exposure to weather: 12 weeks
Storage temperature [C°]:- 5/+35
Application temperature [C°]:+5/+25
Standards and certifications
CE marked in accordance with EN 13984
Description
The membrane can be used for temporary protection, rather than as a long-term functional layer, of construction elements (walls and floors) for a maximum duration of 12 weeks.
The application surface must be dry, free of dust and grease, and not be anti-adhesive. Surface elements must be removed so that the membrane is not damaged during application.
Once applied, the product allows for easy visibility of powder tracer markings and underlying mounting holes.
Recommended use: direct UV protection is guaranteed. Installation is therefore permitted on both the internal and external sides of the building envelope.
Installation: Unroll the membrane over the surface to be protected, progressively remove the release film from the adhesive, and press the membrane firmly to ensure proper adhesion. In case of a mistake during installation, the membrane can be repositioned and reapplied without difficulty during the first few minutes.
Ensure that the overlap between the membranes is at least 10 cm to achieve an optimal seal.
If installed on walls, the membrane must be laid horizontally, starting from the base of the wall and progressing upwards to the top.
Further details regarding installation can be found in the specific instructions provided by the supplier.