Medium-weight roofing underlay with self-sealing perforations and waterproof adhesive strips
Advantages
- Maximum protection for the roof structure: excellent hail impact resistance as per ETA-23/0532 and VKF (HR 5 class)
- Efficient installation: serves as a roofing underlay with waterproof seams and self-sealing perforations for roof pitches ≥14° (3:12) without the need for additional sealing measures, as per ETA-23/0532
- Reliable rainproof roofs: serves as a sub-roof underlay for roof pitches ≥10° (2.1:12) with TESCON NAIDECK as an additional sealing measure over rigid subsurfaces, as per ETA-23/0532
- Quick waterproof adhesion: with sealing lip at the 'connect’ self-adhesive strips on the long edges of the membrane
- Flexible planning of construction schedules: at least 3 months of outdoor exposure
- Permanent protection: high resistance to ageing and heat of the functional film
- 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 thermal insulation materials, including blown-in insulation materials.
Technical specs
Material | |||
Functional film, one side | Monolithic TPU | ||
Backing fleece | Polyester fleece | ||
Self-adhesive strips | Water-resistant SOLID adhesive | ||
Property | Regulation | Value | Regulation |
Colour | Grey-blue | ||
Surface weight | EN 1849-2 | 230 g/m² ; 0.75 oz/ft² | EN 1849-2 |
Thickness | EN 1849-2 | 0.7 mm ; 28 mils | EN 1849-2 |
Water vapour resistance factor µ | EN ISO 12572 | 230 | EN ISO 12572 |
sd value | EN ISO 12572 | 0.16 m | EN ISO 12572 |
g value | 0.8 MN·s/g | ||
Vapour permeance | ASTM E96-A | 20.5 perms | ASTM E96-A |
Fire class | EN 13501-1 | E | EN 13501-1 |
Outdoor exposure | Cen./Nth. Europe & Canada/Nth. US: 4 months ; RoW: 3 months | ||
Hail resistance | EN 13583 | ETA-23/0532 | EN 13583 |
Hail impact resistance | VKF / AEAI | Class HR 5 | VKF / AEAI |
Watertightness of perforation points | EAD 030218-01-0402 | ETA-23/0532 | EAD 030218-01-0402 |
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 | > 4 500 mm ; 14' 9" | EN ISO 811 |
Watertightness, non-aged/aged* | EN 13859-1 | W1 / W1 | EN 13859-1 |
Tensile strength MD/CD | EN 13859-1 (A) | 335 N/5 cm / 355 N/5 cm ; 38 lb/in / 41 lb/in | EN 13859-1 (A) |
Tensile strength MD/CD, aged* | EN 13859-1 (A) | 325 N/5 cm / 335 N/5 cm ; 37 lb/in / 38 lb/in | EN 13859-1 (A) |
Elongation MD/CD | EN 13859-1 (A) | 36 % / 55 % | EN 13859-1 (A) |
Elongation MD/CD, aged* | EN 13859-1 (A) | 36 % / 55 % | EN 13859-1 (A) |
Nail tear resistance MD/CD | EN 13859-1 (B) | 200 N / 200 N ; 45 lbf / 45 lbf | EN 13859-1 (B) |
*) Durability after artificial ageing | 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 100 °C ; -40 °F to 212 °F | EN 1109, EN 1296, EN 1297 |
Thermal conductivity | 0.04 W/(m·K) ; 0.3 BTU·in/(h·ft²·°F) | ||
Emissivity | EN 15976 | 0.85 | EN 15976 |
CE labelling | ETA-23/0532 | Yes | ETA-23/0532 |