Medium-weight roofing underlay
Advantages
- Flexible planning of construction schedules thanks to 4 months of outdoor exposure
- Well-protected building components: highly diffusion-open and maximum protection against driving rain and hail
- 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
- Provides protection during the construction period: suitable as a temporary covering
Areas of application
For use as a diffusion-open roofing underlay over roof sheathing, MDF and wood-fibre underlay panels, and over all mat or panel-shaped thermal insulation materials.
Technical specs
Material | |||
Protective and covering fleece | Polypropylene microfibre | ||
Functional film | Monolithic TEEE | ||
Property | Regulation | Value | Regulation |
Colour | Anthracite | ||
Surface weight | EN 1849-2 | 150 g/m²; 0.5 oz/ft² | EN 1849-2 |
Thickness | EN 1849-2 | 0.45 mm ; 18 mils | EN 1849-2 |
Water vapour resistance factor µ | EN ISO 12572 | 110 | 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 | 38 perms | ASTM E 96 |
Fire class | EN 13501-1 | E | EN 13501-1 |
Outdoor exposure | 4 months | ||
Hail impact resistance | VKF / AEAI | Class HR 5 | VKF / AEAI |
Watertight joints with ‘connect’ adhesive strips or TESCON VANA tape | EN 13859-1 | W1 | EN 13859-1 |
Sarking/roofing underlay membrane (Germany) | ZVDH-Produktdatenblatt 2024 | USB / UDB | ZVDH-Produktdatenblatt 2024 |
Suitable as temporary roof covering (Germany) | ZVDH | Yes | ZVDH |
Water column | EN ISO 811 | 10 000 mm ; 32' 10" | EN ISO 811 |
Watertightness, non-aged/aged* | EN 13859-1 | W1 / W1 | EN 13859-1 |
Tensile strength MD/CD | EN 13859-1 (A) | 280 N/5 cm / 220 N/5 cm ; 32 lb/in / 25 lb/in | EN 13859-1 (A) |
Tensile strength MD/CD, aged* | EN 13859-1 (A) | 240 N/5 cm / 165 N/5 cm ; 27 lb/in / 19 lb/in | EN 13859-1 (A) |
Elongation MD/CD | EN 13859-1 (A) | 60% / 70% | EN 13859-1 (A) |
Elongation MD/CD, aged* | EN 13859-1 (A) | 50% / 65% | EN 13859-1 (A) |
Nail tear resistance MD/CD | EN 13859-1 (B) | 180 N / 230 N ; 40 lbf / 52 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 | EN 1109, EN 1296, EN 1297 | permanent -40 °C to +120 °C; -40 °F to 248 °F | EN 1109, EN 1296, EN 1297 |
Thermal conductivity | 0.04 W/(m·K) ; 0.3 BTU·in/(h·ft²·°F) | ||
CE labelling | EN 13859-1 | Yes | EN 13859-1 |