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.

CharacteristicsResultsTest 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
Nail tear resistanceMD ≥ 100 NEN 12310-1
CD ≥ 135 N
Water vapour permeabilitySd = 20 mEN 1931
Water vapour transmission properties (after artificial ageing)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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