Hydrosafe® high-performance vapour check for exterior roof insulation

connect variant with self-adhesive zones

Advantages

  • Best possible protection against moisture damage to structures thanks to humidity-variable diffusion resistance
  • Protects buildings against the elements during the construction phase for roof pitches of 10° (2.1:12) and higher
  • Protected winter building sites thanks to Hydrosafe® behaviour
  • Water-resistant and waterproof, can be walked on
  • Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme

Areas of application

For use as a vapour check and airtight membrane that can be subjected to outdoor exposure on roof decking underneath over-rafter insulation in combination with all fibrous insulation materials on structures that are open or closed to diffusion on the exterior, e.g. flat/steep roofs and green roofs, after appropriate design calculations have been carried out.

Technical specs

  Material
Protective and covering fleece Polypropylene
Membrane Polyethylene copolymer
Property Value Regulation
Colour green
Surface weight 150 g/m² ; 0.5 oz/ft² EN 1849-2
Thickness 0.45 mm ; 18 mils EN 1849-2
Water vapor resistance factor µ 31 100 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 105) ASTM E84
Fire rating E EN 13501-1
Outdoor exposure 2 months
Driving rain test passed ZVDH
Water column > 2 500 mm ; > 8' 2" EN ISO 811
Water tightness to liquid water W1 EN 1928
Watertight joints with ‘connect’ technology if TESCON VANA is used for sticking W1 EN 13859-1
Airtightness tested EN 12114
Tensile strength MD/CD 250 N/5 cm / 170 N/5 cm ; 29 lb/in / 19 lb/in EN 12311-2
Elongation MD/CD 60 % / 60 % EN 12311-2
Nail tear resistance MD/CD 120 N / 120 N ; 27 lbf / 27 lbf EN 12310-1
Durability after artificial ageing passed EN 1296 / EN 1931
Temperature resistance permanent -40 °C to 80 °C ; -40 °F to 176 °F
Thermal conductivity 0.04 W/(m·K) ; 0.3 BTU·in/(h·ft²·F)
CE labelling yes EN 13984