COCON 20 SD NT
ATTICS AND TIMBER FRAMES
VAPOR BARRIER SCREEN
The COCON SD 20 NT Vapor Barrier is a technical screen with high mechanical strength designed to provide long-lasting protection for insulation and wall structures.
It performs two essential functions: it is both airtight and water vapor-proof with an Sd value = 20 m. Its robust design ensures reliable installation for long-term insulation.
It is ideally suited for use in converted attics, unconverted attics, as well as for timber frame walls with ventilated exterior cladding.
APPLICATION FOR LOFTS AND TIMBER FRAME
This versatile product is perfectly suited to the following configurations:
- Converted lofts.
- Unused loft spaces.
- Timber frame walls with ventilated exterior cladding.
- Interior use only.
PERFORMANCE AND AIRTIGHTNESS
Sd 20 m
Its Sd value of 20 metres ensures optimal control of water vapour diffusion through the wall.
High mechanical strength
Designed to withstand the stresses of installation and preserve the integrity of the wall.
Vapour-tight
By blocking the migration of water vapour, it protects the insulation from moisture.
COMFORT AND ECO-RESPONSIBILITY
Airtight
Its airtightness actively helps eliminate heat loss through air leakage.
Recyclable
The Cocon SD 20 vapour barrier has a reduced environmental impact, with a composition made up of 65% bio-based material.
| Characteristics | Results | Test methods |
|---|---|---|
| Mass per unit area | 110 g/m² (-15/+15) | EN 1849-2 |
| Thickness | 0.4 mm (-0.1/+0.1) | EN 1849-3 |
| Reaction to fire | Class E | EN 13501-1 |
| Resistance to water penetration | Requirements met | EN 1928 Method A |
| Tensile properties: maximum force | MD ≥ 130 N/50 mm | EN 12311-2 |
| CD ≥ 100 N/50 mm | ||
| Tensile properties: elongation | ≥ 50% | EN 12311-2 |
| Nail tear resistance | MD ≥ 100 N | EN 12310-1 |
| CD ≥ 135 N | ||
| Water vapour permeability | Sd = 20 m | EN 1931 |
| Water vapour transmission properties (after artificial ageing) | Requirements met | EN 1296 and EN 1931 |
| PACKAGING AND STORAGE | |
|---|---|
| Available widths | 1.50 m or 3 m |
| Roll length | 50 m |
| Composition | Polypropylene (PP 05) |
TECHNICAL DOCUMENTATION
| FREQUENTLY BOUGHT TOGETHER |
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OUR OTHER PRODUCTS FROM THE INSULATION RANGE
Optimize your home's thermal efficiency by discovering our complementary solutions: in addition to loose-fill insulation, we offer three types of high-performance insulation boards suitable for your walls, floors, and roofs.






