Reinforced hydrosafe® high-performance vapour retarder, suitable for all fibrous insulation materials

Advantages

  • Best possible protection against damage to structures and mould because this product is humidity-variable with a variation of a factor of over 100
  • Test winner in April 2012 with the German product-testing foundation ‘Stiftung Warentest’
  • Permanent protection: officially tested and certified performance (ETA-18/1146)
  • Protected winter building sites thanks to hydrosafe® behaviour
  • Can be combined with all fibrous insulation materials (including blown-in insulation)
  • Easy to work with: dimensionally stable, no splitting or tear propagation
  • Excellent values in the hazardous substance test, has been tested according to the ISO 16000 evaluation scheme

Areas of Application

For use on roofs, walls, ceilings and floors on structures that are open or closed to diffusion on the exterior, e.g. flat/steep roofs and green roofs, after appropriate design calculations.

Technical specs

  Material
Fleece Polypropylene
Membrane Polyethylene copolymer
Reinforcement Polypropylene non-woven fabric
Attribute Value Norm
Colour white-transparent
Surface weight 110 g/m² ; 0.36 oz/ft² EN 1849-2
Thickness 0.4 mm ; 16 mils EN 1849-2
Water vapor resistance factor µ 35 000 EN 1931
sd-value 14 m EN 1931
sd-value humidity variable 0.25 - >25 m EN ISO 12572
g-value 70 MN·s/g
g-value humidity variable 1.25 - >125 MN·s/g
Vapour permeance 0.23 US perms ASTM E96-A
Vapour permeance humidity variable < 0.13 - 13 US perms EN ISO 12572
Hydrosafe value (sd) 2 m DIN 68800-2
Surface burning characteristics Class A (Flame Spread 0; Smoke development index 35) ASTM E84
Fire rating E EN 13501-1
Airtightness ≤ 0.004 cfm/ft² ASTM E2178
Airtightness tested EN 12114
Tensile strength MD/CD 340 N/5 cm / 220 N/5 cm ; 39 lb/in / 25 lb/in EN 13859-1 (A)
Elongation MD/CD 15 % / 15 % EN 13859-1 (A)
Nail tear resistance MD/CD 200 N/5 cm / 200 N/5 cm ; 23 lb/in / 23 lb/in EN 13859-1 (B)
Durability after artificial ageing passed ETA-18/1146
Temperature resistance permanent -40 °C to 80 °C ; -40 °F to 176 °F
Thermal conductivity 2.3 W/(m·K) ; 16 BTU·in/(h·ft²·F)
CE labelling available ETA-18/1146