DB+
Reinforced hydrosafe® paper-based vapour check
Advantages
- Excellent protection against damage to structures and mould thanks to humidity-variable diffusion resistance
- 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 check (alternate terms: vapour control 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, glued with PE | ||
| Reinforcement | Fibreglass mesh | ||
| Property | Regulation | Value | Regulation |
| Colour | Blue | ||
| Surface weight | EN 1849-2 | 190 g/m² ; 0.62 oz/ft² | EN 1849-2 |
| Thickness | EN 1849-2 | 0.23 mm ; 9 mils | EN 1849-2 |
| Water vapour resistance factor µ | EN 1931 | 10 000 | EN 1931 |
| sd value | EN 1931 | 2.30 m | EN 1931 |
| sd value, humidity-variable | EN ISO 12572 | 0.40 - 4 m | EN ISO 12572 |
| g value | 11.5 MN·s/g | ||
| g value, humidity-variable | 2 - 20 MN·s/g | ||
| Vapour permeance | ASTM E96 | 1.4 perms | ASTM E96 |
| Vapour permeance, humidity-variable | EN ISO 12572 | 0.82 - 8.2 US perms | EN ISO 12572 |
| Hydrosafe value (sd) | DIN 68800-2 | 2 m | DIN 68800-2 |
| Fire class | EN 13501-1 | E | EN 13501-1 |
| Watertightness to liquid water | EN 13984 | NPD | EN 13984 |
| Airtightness | EN 12114 | Tested | EN 12114 |
| Tensile strength MD/CD | EN 13859-1 (A) | 550 N/5 cm / 420 N/5 cm ; 63 lb/in / 48 lb/in | EN 13859-1 (A) |
| Elongation MD/CD | EN 13859-1 (A) | 5 % / 5 % | EN 13859-1 (A) |
| Nail tear resistance MD/CD | EN 13859-1 (B) | 70 N / 70 N ; 16 lbf / 16 lbf | EN 13859-1 (B) |
| Durability after artificial ageing | EN 1296 / EN 1931 | Passed | EN 1296 / EN 1931 |
| Temperature resistance | EN 1109, EN 1296, EN 1297 | 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 | EN 13984 | Yes | EN 13984 |
