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Sisalex 303

Vapour check and airtight layer

Product photo: Sisalex 303, vapour check and airtight layer

Vapour check and airtight layer.

  • Eco-friendly product: all elements are of natural origin
  • Stable and tear-resistant grid out of glass fibres
  • Does not contain fungicides

Triple layer paper vapour check and airtight layer. Compound made of two kraft papers and a glass fibre inlay. Also suitable for cellulose insulation.


20-year Ampack premium warranty

Conditions for the twenty-year premium warranty include registering the building object and the Ampack products used. In addition, our products must be used as part of a system. For further details, please see our General Warranty Conditions.

baubook

CE 13984:2013

ISO 9001

Article number Description Roll dimensions

7640115530707

Sisalex 303 1,5 m × 50 m = 75 m2

7640115535726

Sisalex 303 3,0 m × 50 m = 150 m2
Property Value Standard
Harmonised European Standard EN 13984:2013
Product description Typ B EN 13984:2013

Mass per unit area

180 g/m2

EN 1849-2

Straightness

< 75 mm / 10 m

EN 1848-2

Fire behaviour

E EN 13 501-1 / EN ISO 11925-2

Water vapour permeability, sD value

5 m EN 1931

Width of overlap

10 cm

Maximum tensile strength longitudinal / transverse

850 / 800 N/5 cm

EN 12 311-2, without support liner EN 13 859-1, Appendix A, with support liner

Elongation longitudinal / transverse

3 / 6 %

EN 12 311-2, without support liner EN 13 859-1, Appendix A, with support liner

Resistance to tearing (nail) longitudinal / transverse

75 / 65 N

EN 12 310-1 without support liner EN 13 859-1, Appendix B, with support liner
Air tightness air tight
Visible defects none EN 1850-2
Values after artificial ageing

Water vapour permeability, sD value

approved EN 1296, 70°C / EN 1931
Technical data sheets
pdf Technical data sheet: Sisalex 303 Technical data sheet: Sisalex 303, vapour check and airtight layer
Declarations of performance
pdf Declaration of performance: Sisalex 303 Declaration of performance: Sisalex 303 1.5 x 50 m, vapour check and airtight layer
pdf Declaration of performance: Sisalex 303 Declaration of performance: Sisalex 303 3.0 x 50 m, vapour check and airtight layer
Product inserts
pdf Product insert: Sisalex 303 Product insert: Sisalex 303 1.5 x 50 m, vapour check and airtight layer
pdf Product insert: Sisalex 303 Product insert: Sisalex 303 3.0 x 50 m, vapour check and airtight layer
Tendering texts
pdf Tendering text: Sisalex 303 Tendering text: Sisalex 303, vapour check and airtight layer
Product photos
jpg Product photo: Sisalex 303 Product photo: Sisalex 303, vapour check and airtight layer

Sisalex 303 is applied as an airtight layer and vapour check for dry interior finishing and positioned on the warm side of the thermal insulation where it is stapled to the construction. Take care when positioning it that the membranes overlap by 10 cm and that the joints are tightly sealed with the enclosed system adhesive strip Ampacoll INT. Ampacoll DT acrylic tape represents an installation aid on underlying structures that cannot be nailed. Application of the interior lining serves as the final fastening step. Edge connections must be sealed with Ampacoll BK 530 or Ampacoll RA. Porous or dusty surfaces must be pre-treated with Ampacoll Primax. Penetrations such as ventilation and electric pipes must be permanently sealed with Ampacoll BK 535 (50 mm). Use Ampacoll Primax as a primer on porous, dusty or rough surfaces.

pdf Dampfbremsen im winterlichen Rohbau Einbau von Dampfbremsen im winterlichen Rohbau
pdf Luftdichtheitsbahnen bei Einblasdämmungen Verlegung von Luftdichtheitsbahnen bei Einblasdämmungen
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