Reinforced hydrosafe® paper-based vapour control membrane

Advantages

  • Excellent protection against damage to structures and mould thanks to humidity-variable diffusion resistance
  • Well-protected winter building sites thanks to hydrosafe® behaviour
  • Can be combined with all fibrous insulation materials (including blown-in insulation)
  • Ecological solution for sealing of the building envelope
  • Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme

Areas of application

Vapour control (alternate terms: vapour check or retarder) membrane for use on roofs, walls, ceilings and floors in combination with all fibrous insulation materials, including blown-in insulation, on structures that are open or closed to diffusion on the exterior, after appropriate design calculations.

Technical specs

  Material
Sheet Building paper (100% recycled paper), glued with PE
Reinforcement Fibreglass mesh
Property Value Regulation
Colour Blue
Surface weight 190 g/m² ; 0.62 oz/ft² EN 1849-2
Thickness 0.23 mm ; 9 mils EN 1849-2
Water vapour resistance factor µ 10 000 EN 1931
sd value 2.30 m EN 1931
sd value, humidity-variable 0.40 ‑ 4 m EN ISO 12572
g value 11.5 MN·s/g EN 1931
g value, humidity-variable 2 ‑ 20 MN·s/g EN ISO 12572
Vapour permeance 1.4 perms ASTM E96
Vapour permeance, humidity-variable 0.82 ‑ 8.2 US perms EN ISO 12572
Hydrosafe value (sd) 2 m DIN 68800-2
Reaction to fire classification E EN 13501-1
Watertightness to liquid water NPD (no performance declared) EN 13984
Airtightness Tested EN 12114
Tensile strength MD/CD 550 N/5 cm / 420 N/5 cm ; 63 lb/in / 48 lb/in EN 13859-1 (A)
Elongation MD/CD 5% / 5% EN 13859-1 (A)
Nail tear-resistance MD/CD 70 N / 70 N ; 16 lbf / 16 lbf EN 13859-1 (B)
Durability after artificial ageing Passed EN 1296 / EN 1931
Temperature resistance Permanent up to +40 °C ; +104 °F EN 1109, EN 1296, EN 1297
Thermal conductivity 0.04 W/(m·K) ; 0.3 BTU·in/(h·ft²·°F)
CE labelling Yes EN 13984