Reinforced all-round hydrosafe® high-performance vapour check
Advantages
- Excellent protection against mould and moisture damage to structures thanks to humidity-variable diffusion resistance
- Can be combined with all fibrous insulation materials
- Easier handling: can be used with insulation installed between rafters or wall framework and with external insulation
- Protects building structure against weathering during the construction phase for roof pitches of 10° (2.1:12) and higher
- Protected winter building sites thanks to hydrosafe® behaviour
- Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme
Areas of application
For use on the inside of insulation installed between rafters or wall framework, or over a hard subsurface for use underneath external insulation in combination with all fibrous insulation materials – including blown-in insulation materials. This membrane can be permanently exposed to diffuse UV light – e.g. in unconverted spaces without inner cladding. It can be used on building components that are diffusion-open to the outside or are diffusion-tight, e.g. pitched, flat or green roofs, after appropriate design calculations have been carried out.
Technical specs
Material | |||
Protective and covering fleece | Polypropylene | ||
Membrane | Polyethylene copolymer | ||
Reinforcement | Polypropylene non-woven fabric | ||
Property | Regulation | Value | Regulation |
Colour | light grey | ||
Surface weight | EN 1849-2 | 170 g/m² ; 0.56 oz/ft² | EN 1849-2 |
Thickness | EN 1849-2 | 0.6 mm ; 24 mils | EN 1849-2 |
Water vapour resistance factor µ | EN 1931 | 23 300 | EN 1931 |
sd value | EN 1931 | 14 m | EN 1931 |
sd value, humidity variable | EN ISO 12572 | 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 | ASTM E96-A | 0.23 perms | ASTM E96-A |
Vapour permeance, humidity variable | EN ISO 12572 | < 0.13 - 13 perms | EN ISO 12572 |
Hydrosafe value (sd) | DIN 68800-2 | 2 m | DIN 68800-2 |
Surface burning characteristics | ASTM E84 | Class A (Flame Spread 0; Smoke development index 105) | ASTM E84 |
Fire rating | EN 13501-1 | E | EN 13501-1 |
Outdoor exposure | 2 months | ||
UV resistance | can be permanently exposed to diffuse UV light | ||
Water column | EN ISO 811 | > 2 500 mm ; > 8' 2" | EN ISO 811 |
Watertightness to liquid water | EN 1928 | W1 | EN 1928 |
Tensile strength MD/CD | EN 12311-2 | 490 N/5 cm / 300 N/5 cm ; 56 lb/in / 34 lb/in | EN 12311-2 |
Elongation MD/CD | EN 12311-2 | 20 % / 20 % | EN 12311-2 |
Nail tear resistance MD/CD | EN 12310-1 | 280 N / 280 N ; 63 lbf / 63 lbf | EN 12310-1 |
Durability after artificial ageing | EN 1296 | passed | EN 1296 |
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 | EN 13984 | yes | EN 13984 |