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 ATTICS AND TIMBER FRAMES

This versatile product is perfectly suited to the following configurations:

  • Converted attics.
  • Unconverted attics.
  • Timber frame walls with ventilated exterior cladding.
  • Indoor use only.
 

PERFORMANCE AND TIGHTNESS

Sd 20m

Its Sd value of 20 meters ensures optimal regulation of water vapor diffusion through the wall.

High mechanical strength

Designed to withstand the stresses of installation and preserve the integrity of the wall.

Vapor-tight

By blocking water vapor migration, 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 vapor barrier has a reduced environmental impact, with a composition made of 65% bio-based material.

PropertiesResultsTest methods
Mass per unit area110 g/m² (-15/+15)EN 1849-2
Thickness0.4 mm (-0.1/+0.1)EN 1849-3
Reaction to fireClass EEN 13501-1
Resistance to water penetrationRequirements metEN 1928 Method A
Tensile properties: maximum forceMD ≥ 130 N/50 mmEN 12311-2
CD ≥ 100 N/50 mm
Tensile properties: elongation≥ 50 %EN 12311-2
Resistance to tearing (nail shank)MD ≥ 100 NEN 12310-1
CD ≥ 135 N
Water vapor permeanceSd = 20 mEN 1931
Water vapor transmission properties (after artificial aging)Requirements metEN 1296 and EN 1931
PACKAGING AND STORAGE
Available widths1.50 m or 3 m
Roll length50 m
CompositionPolypropylene (PP 05)

TECHNICAL DOCUMENTATION

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