Reinforced hydrosafe® high-performance vapour check, suitable for all fibrous insulation materials
Advantages
- Best possible protection against moisture damage to structures and mould because this product is humidity-variable with a variation of a factor of over 100
- Can be combined with all fibrous insulation materials (including blown-in insulation)
- Permanent protection: performance tested and certified by independent testing authority (ETA-18/1146)
- Protected winter building sites thanks to hydrosafe® behaviour
- Test winner in April 2012 with the German product-testing foundation ‘Stiftung Warentest’
- Easy to work with: dimensionally stable, no splitting or tear propagation
- Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme
Areas of application
Vapour check (alternate terms: vapour control or retarder) membrane for use on roofs, walls, ceilings and floors on structures that are open or closed to diffusion on the exterior, e.g. flat/pitched roofs and green roofs, after appropriate design calculations have been carried out.
Technical specs
Material | |||
Fleece | Polypropylene | ||
Functional film | Polyethylene copolymer | ||
Reinforcement | Polypropylene non-woven fabric | ||
Property | Regulation | Value | Regulation |
Colour | White-translucent | ||
Surface weight | EN 1849-2 | 110 g/m² ; 0.36 oz/ft² | EN 1849-2 |
Thickness | EN 1849-2 | 0.4 mm ; 16 mils | EN 1849-2 |
Water vapour resistance factor µ | EN 1931 | 35 000 | 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 | EN ISO 12572 | 1.25 - >125 MN·s/g | EN ISO 12572 |
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 35) | ASTM E84 |
Fire class | EN 13501-1 | E | EN 13501-1 |
Airtightness | ASTM E2178 | ≤ 0.004 cfm/ft² | ASTM E2178 |
Airtightness | EN 12114 | Tested | EN 12114 |
Tensile strength MD/CD | EN 13859-1 (A) | 340 N/5 cm / 220 N/5 cm ; 39 lb/in / 25 lb/in | EN 13859-1 (A) |
Elongation MD/CD | EN 13859-1 (A) | 15% / 15% | EN 13859-1 (A) |
Nail tear resistance MD/CD | EN 13859-1 (B) | 200 N / 200 N ; 45 lb / 45 lb | EN 13859-1 (B) |
Durability after artificial ageing | ETA-18/1146 | Passed | ETA-18/1146 |
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 | ETA-18/1146 | Yes | ETA-18/1146 |