SOLITEX EXTASANA®
Weather Resistive Barrier and Wall Underlay
Advantages
- Excellent UV resistance (180 days exposure)
- Highly vapour-permeable (Class 4)
- Long-term durability
- Weathertight & airtight weather-resistive barrier (WRB)
- Next-generation non-porous monolithic technology
- Fire-retardant
Areas of application
SOLITEX EXTASANA® wall underlay provides the best weather protection layer for external walls under all conditions. It protects the building from wind, driving rain, and other external sources of water while allowing any internal moisture to escape through the vapour permeable, non-porous TEEE* layer.
Technical specs
| Material | |||
| Protective and covering fleece | Polypropylene microfibre | ||
| Functional film | Monolithic TEEE | ||
| Property | Regulation | Value | Regulation |
| Colour | Blue | ||
| Surface weight | EN 1849-2 | 140 g/m² | EN 1849-2 |
| Thickness | EN 1849-2 | 0.60 mm | EN 1849-2 |
| Vapour resistance (MVTR) | ASTM E96 Procedure B | 0.459 MN·s/g | ASTM E96 Procedure B |
| Flammability index | NZS 2295 | Fire Retardant | NZS 2295 |
| Flammability index | AS 1530.2 / AS/NZS 4200.1 | < 5 | AS 1530.2 / AS/NZS 4200.1 |
| Resistance to UV exposure | ASTM G154 / ASTM G155 | 180 days | ASTM G154 / ASTM G155 |
| Absorbency | AS/NZS 4201.6 | > 100 g/m² | AS/NZS 4201.6 |
| Water column | EN ISO 811 | 10 000 mm | EN ISO 811 |
| Resistance to water penetration | AS/NZS 4201.4 | Passed (> 20 mm) | AS/NZS 4201.4 |
| Air resistance | ISO 5636-5 | ≥ 0.1 MN·s/m³ | ISO 5636-5 |
| Type classification | NZS 2295:2006 | W4 | NZS 2295:2006 |
| Edge tear resistance MD/LD | TAPPI T470 | 251N / 188N | TAPPI T470 |
| Tensile strength MD/LD | ASTM D882 | 4.8 kN/m / 3.7 kN/m | ASTM D882 |
| Heat shrinkage @ 70°C MD/LD | ASTM D1204 | 0.0% / 0.0% | ASTM D1204 |
| Moisture shrinkage | AS/NZS 4201.3 | <0.5% | AS/NZS 4201.3 |
| Temperature resistance | -40 °C to 100 °C | ||
| pH extract | AS/NZS 1301.421s | 6.7 | AS/NZS 1301.421s |
