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Breather Membrane UV

ME011 is a special monolithic functional membrane covered with two layers of non-woven water-repellent polyester.


This breather membrane can be directly laid on sheathing board or thermal insulation behind partially open rain screen façades or curtain walling with up to 30 mm wide open joints. The open joints should represent a maximum of 40% of the overall façade area i.e. for a 30 mm gap width, the panels/slats should be a minimum width of 45 mm each. The membrane is made of a special, monolithic functional membrane covered with two layers of non-woven water-repellent polyester.

  • UV resistant – 6 months UV stable
  • Can be used within partially open façades
  • Non-branded, plain black finish
    - suitable for visible applications
  • Wide range of in-service temperature resistance
  • Highly vapour open
  • Air-tight and weather-tight
  • Available with self-adhesive strip
  • Permanently UV stable in open joints between cladding and window frame

Technical data

PropertyTest MethodResult
Grammage ~ 120 g/m² 
Thickness EN 1849-2~ 0.4 mm
Dimensional AccuracyEN 1107-2 < 1% 
Reaction to FireEN 13501-1 Class E
Resistance to Water Penetration EN1928
EN 13859-1/-2
After AgeingEN 1297/1296W1
Maximum Tensile Strength - Lengthwise/CrosswiseDIN 12311-1~ 320/210 N ± 20%
     After AgeingEN 1297/1296>75 % of value as new
Elongation of Break - Lengthwise/CrosswiseEN 12311-1

~ 35/25%

     After Ageing EN 1297/1296>75 % of value as new
Tear Growth Resistance / Nail ShankEN 12310-1~ 120/130 N ± 25%
Vapour Diusion - Equivalent Air Layer Thickness EN ISO 12572 SSd-value: ~ 0.15 m
Air PermeabilityEN 12114 ~ 0.1 m³/m².h.50 Pa
Service TemperatureEN 13859-1 -40°C to +120°C
Flexural Behaviour in Cold ConditionsEN 1109 < -20°C 
Durability for Water Vapour PermeabilityEN 1296Passed
UV Resistance 6 months
StorageStore in shaded, dry conditions and avoid stacking pallets
Shelf Life1 year when stored as recommended in original unopened packaging

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