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

 

Advantages

  • The best possible protection for insulation structures thanks to humidity-variable diffusion adaptation with a variation of a factor of over 100
  • Test winner in April 2012 with the German product-testing foundation »Stiftung Warentest«
  • Permanent protection: durability officially, independently tested and confirmed
  • Protected winter building sites thanks to hydrosafe behaviour
  • Very low coefficient of expansion when combined with spray insulation materials
  • Excellent values in the hazardous substance test, has been tested according to the ISO 16000 evaluation scheme
 

Application

Can be used as a vapour check and airtightness membranes for all externally diffusion-open structures, e.g. with roof underlay (pro clima SOLITEX), softwood fibreboard or MDF board. For a high level of protection against moisture induced failures in structurally challanging constructions such as diffusion-resistant flat/pitched roofs. Also suitable in extreme environments such as in high mountain regions.
Further information is given by study "Calculation of the potential freedom from structural damage of thermal insulation structures in timber-built and steel systems".
- Study
- Study for Ire­land and the UK

Technical specs

  Material
Fleece Polypropylene
Membrane Polyethylene copolymer
Reinforcement Polypropylene non-woven fabric
Attribute Value Norm
Colour white-transparent
Surface weight 110 ±15 g/m² ; 0.36 ±0.05 oz/ft² EN 1849-2
Thickness 0.40 ±0.1 mm ; 16 ±4 mils EN 1849-2
Water vapor resistance factor µ 18 750 EN 1931
sd-value 7.50 ±0.25 m EN 1931
sd-value humidity variable 0.25 - >25 m EN ISO 12572
g-value 37.50 ±1.25 MN·s/g
g-value humidity variable 1.25 - >125 MN·s/g
Vapour permeance 0.17 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
Reaction to fire E EN 13501-1
Airtightness tested EN 12114
Airtightness ≤ 0.004 cfm/ft² ASTM E2178
Tensile strength MD/CD 350 N/5 cm / 290 N/5 cm ; 40 lb/in / 33 lb/in EN 13859-1 (A)
Elongation MD/CD 15 % / 15 % EN 13859-1 (A)
Nail tear resistance MD/CD 200 N / 200 N ; 45 lbf / 45 lbf EN 13859-1 (B)
Artificial ageing by long term passed EN 1296 / EN 1931
Temperature resistance permanent -40 °C to 80 °C ; -40 °F to 176 °F
Thermal conductivity 0.17 W/(m·K) ; 1.18 BTU·in/(h·ft²·F)
National technical approval (DE) Z-9.1-853 DIN 68800-2
CE labelling available EN 13984