A2 class fire rated weatherproofing air and vapour control layer (AVCL).
For use as a Vapour Control Layer Membrane (VCL). Protects the building from condensation risk and improves the airtightness, and consequently the energy efficiency. The Vapour FR membrane should be located on the internal face (warm side) of the back wall and fixed on the top of vertical Galvanized Steel SFS Studs. The weatherproofing design of AVCL membrane systems should be done in detail and on a project-by-project basis.
High quality and multifunctional weatherproofing airtight vapour barrier manufactured from fibreglass technology with an aluminium foil, developed to achieve a fire reaction Class A1 as membrane and Class A2-s1,d0 as system according to EN 13501-1. The final fire classification of the system was obtained for Effisus Vapour FR membrane with Effisus accessories (tapes and adhesives).
Features and benefits:
Obtained an Exemplary Level from BREEAM International
50 x 1.2 x 0.148 mm
H11/110 Curtain walling
H92/120 Rainscreen cladding
Fibreglass and aluminium foil.
Tensile strength (minimum)
700 N/50 mm
400 N/50 mm
>170 N (Max 176 N)
>130 N (Max 147 N)
Elongation to break
Water vapour resistance (minimum)
Vapour resistance test result considering the vapour permeability of still air, in the UK, 0.2 gm/MNS.
Tested as a system. To EN 13501-1.
Tested as a membrane. To EN 13501-1.
BREEAM and Indoor Air Comfort.
Black topside with aluminium underside.
Roll length (minimum)
> 1500 m.
Resistance to water penetration
311 N/50 mm.
Resistance to impact
1750 mm and 1250 mm.
EN 12691 A / EN 19691 B
Flexibility at low temperature
Effisus 2Bond DS tape
Double-sided adhesive tape, based on an advanced technology with active adhesive sealants that ensure excellent adhesion to the most diverse materials: Concrete, aluminium, galvanized steel, sheathing board, EPDM, most roofing membranes (requires compatibility test), etc.
Effisus 2Adjoin DF tape
Double-sided airtight and moisture resistant sealing tape, suitable for fixing all Effisus Vapour FR membranes, PE/PA/PP and aluminium foils to metal studs. This accessory was included in the system fire test according to EN 13501-1.
Effisus Bonding KF+P Adhesive
Effisus Bonding KF+P Adhesive brings together a solvent-free innovative adhesive and sealant with exceptional properties of waterproofing and UV resistance, and suitable elongation.