SOLITEX MENTO ULTRA
Reinforced high tear-resistance roofing underlay
Advantages
- Excellent occupational safety, even for large-sized roof tiles, in accordance with DIN 4426
- 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 film actively transports moisture to the outside
- Permanent protection thanks to the high resistance to ageing and heat of the TEEE functional film
- Provides protection during the construction period: suitable as a temporary covering
Areas of application
Diffusion-open roofing underlay for installation hanging freely across all the rafters or else over roof sheathing, MDF and wood-fibre underlay panels, and over all thermal insulation materials, including blown-in insulation materials. Fulfils the requirements of DIN 4426, Clause 5.2 “Devices to protect against falls on roofs” (Table 2 – Tensile strength for sarking membranes as per DIN EN 13859-1, 5.2.6, such as ≥ 450 N/5 cm) for large distances between roof battens due to large-sized roof tiles.
Technical specs
| Material | |||
| Protective and covering fleece | Polypropylene microfibre | ||
| Functional film | Monolithic TEEE | ||
| Reinforcement | Polypropylene non-woven fabric | ||
| Property | Regulation | Value | Regulation |
| Colour | Anthracite | ||
| Surface weight | EN 1849-2 | 200 g/m² ; 0.66 oz/ft² | EN 1849-2 |
| Thickness | EN 1849-2 | 0.9 mm ; 35 mils | EN 1849-2 |
| Water vapour resistance factor µ | EN ISO 12572 | 167 | EN ISO 12572 |
| sd value | EN ISO 12572 | 0.15 m | EN ISO 12572 |
| g value | 0.75 MN·s/g | ||
| Vapour permeance | ASTM E 96 | 21.9 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 | > 2 500 mm ; > 8' 2" | EN ISO 811 |
| Watertightness, non-aged/aged* | EN 13859-1 | W1 / W1 | EN 13859-1 |
| Tensile strength MD/CD | EN 13859-1 (A) | 780 N/5 cm / 490 N/5 cm ; 89 lb/in / 56 lb/in | EN 13859-1 (A) |
| Tensile strength MD/CD, aged* | EN 13859-1 (A) | 780 N/5 cm / 555 N/5 cm ; 89 lb/in / 63 lb/in | EN 13859-1 (A) |
| Elongation MD/CD | EN 13859-1 (A) | 19% / 14% | EN 13859-1 (A) |
| Elongation MD/CD, aged* | EN 13859-1 (A) | 18% / 12% | EN 13859-1 (A) |
| Nail tear resistance MD/CD | EN 13859-1 (B) | 430 N / 370 N ; 97 lbf / 83 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 |
| Fall-through protection | GS-IFA-B03 | Passed, even for freely hanging membrane | GS-IFA-B03 |
| Safe against fall-through with large-format tiles | DIN 4426, 5.2 | Passed | DIN 4426, 5.2 |
| Temperature resistance | Permanent -40 °C to 100 °C ; -40 °F to 212 °F | ||
| Thermal conductivity | 0.04 W/(m·K) ; 0.3 BTU·in/(h·ft²·°F) | ||
| CE labelling | EN 13859-1 | Yes | EN 13859-1 |
