Belgafix plus Air Tight & VCL Membrane - 1.5m x 50m, CE certified


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Belgafix plus is a vapour control layer and  air tightness membrane, which can be used in conjunction with the most common insulation products for pitched roofs.  The membrane is vapour-inhibiting with a static sd-value of 5m. 

Due to the fleece reinforcement at the backside of the membrane, Belgafix plus has a better tear resistance in comparison to standard non wooven membranes.





Dimension (EN 1848-2):   50 m x 1,50 m / 75m²

Weight (EN 1849-2):          110 ± 10% g/m²

sd value (EN 1931):            ± 5 m

Fire class (EN 13501):        class E



What do you need as well, to create a complete air tight layer for your roof/ ceiling?


Belgatape Green - to tape the overlaps and penetrations

Belgaseal 310/ 600 - to bond the membrane to the blockwork

Staples - to fix the membrane to joists and rafters

BelgaTape Split - to tape the membrane to (roof) window frames



Belgafix plus, 1.5 x 50m


  • 10 kg
  • Sold Out