Hydrosafe® high-performance vapour retarder for exterior roof insulation, with self-adhesive zones

Variant without self-adhesive zones

Advantages

  • Best possible protection against damage to structures thanks to the humidity-variable diffusion resistance
  • Protects buildings against the elements during the construction phase from a roof pitch of 2.1:12" (10°)
  • Protected winter building sites thanks to hydrosafe® behaviour
  • Water-resistant and waterproof, can be walked on
  • Excellent values in the hazardous substance test, has been tested according to the ISO 16000 evaluation scheme
  • Quick and reliable adhesion thanks to the integrated ‘connect’ self-adhesive zones along the membrane strips

Areas of Application

For use as a vapour retarder 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.

Technical specs

  Material
Protective and covering fleece Polypropylene
Membrane Polyethylene copolymer
Attribute Value Norm
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
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 2.3 W/(m·K) ; 16 BTU·in/(h·ft²·F)
CE labelling yes EN 13984


De­clar­a­tion of Per­form­ance (DoP)