Heavy-weight roof underlay
Advantages
- Maximal flexibility in planning construction schedules thanks to 6 months of outdoor exposure
- Ensures reliable building components: highly diffusion-open and maximum protection against driving rain
- Dry building components: pore-free TEEE functional membrane actively transports moisture to the outside
- Permanent protection thanks to the high resistance to ageing and heat of the TEEE membrane
- Reliable during the construction phase: suitable for temporary coverings during construction work
Areas of application
For use as a permeable sarking or roof underlay on roof decking, MDF and wood fibre underlay panels, and on all thermal insulation materials.
Technical specs
Material | |||
Protective and covering fleece | Polypropylene microfibre | ||
Membrane | monolithic TEEE | ||
Property | Regulation | Value | Regulation |
Colour | anthracite | ||
Surface weight | EN 1849-2 | 215 g/m² ; 0.7 oz/ft² | EN 1849-2 |
Thickness | EN 1849-2 | 0.70 mm ; 28 mils | EN 1849-2 |
Water vapor resistance factor µ | EN ISO 12572 | 71 | EN ISO 12572 |
sd value | EN ISO 12572 | 0.05 m | EN ISO 12572 |
g value | 0.25 MN·s/g | ||
Vapour permeance | ASTM E 96 | 65 US perms | ASTM E 96 |
Fire rating | EN 13501-1 | E | EN 13501-1 |
Outdoor exposure | 6 months | ||
Water column | EN ISO 811 | 10 000 mm ; 32' 10" | EN ISO 811 |
Water tightness non-aged/aged* | EN 13859-1 | W1 / W1 | EN 13859-1 |
Watertight joints with ‘connect’ technology if TESCON VANA is used for sticking | EN 13859-1 | W1 | EN 13859-1 |
Tensile strength MD/CD | EN 13859-1 (A) | 350 N/5 cm / 270 N/5 cm ; 40 lb/in / 31 lb/in | EN 13859-1 (A) |
Tensile strength MD/CD aged* | EN 13859-1 (A) | 330 N/5 cm / 245 N/5 cm ; 38 lb/in / 28 lb/in | EN 13859-1 (A) |
Elongation MD/CD | EN 13859-1 (A) | 55 % / 65 % | EN 13859-1 (A) |
Elongation MD/CD aged* | EN 13859-1 (A) | 30 % / 40 % | EN 13859-1 (A) |
Nail tear resistance MD/CD | EN 13859-1 (B) | 270 N / 400 N ; 61 lbf / 90 lbf | EN 13859-1 (B) |
*) Durability after artificial ageing at 120 °C ; 248 °F | EN 1297 / EN 1296 | passed | EN 1297 / EN 1296 |
Flexibility at low temperature | EN 1109 | -40 °C ; -40 °F | EN 1109 |
Temperature resistance | permanent -40 °C to +120 °C; -40°F to 248°F | ||
Thermal conductivity | 0.04 W/(m·K) ; 0.3 BTU·in/(h·ft²·F) | ||
Sarking membrane/roof lining membrane | ZVDH-Produktdatenblatt | USB-A / UDB-A | ZVDH-Produktdatenblatt |
Temporary roof covering; suitable as ... | ZVDH | yes | ZVDH |
CE labelling | EN 13859-1 | yes | EN 13859-1 |