HIGHLY BREATHABLE MEMBRANE
TRASPIR DOUBLE NET 270
The highly breathable membrane TRASPIR DOUBLE NET 270 limits the unconditional passage of wind, protecting the outside of the structure from the entry of cold draughts in winter or hot draughts in summer.
It features a double reinforcement grid, which gives it excellent mechanical properties. It consists of a microporous film and protective polypropylene layers with double reinforcement mesh and is designed for application on both the external and internal sides of the roof.
TRASPIR DOUBLE NET 270, the membrane with unbeatable mechanical resistance designed for alpine and mountain environments
Documents
Technical data sheets
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|---|---|
| Declaration of performance (DOP) | Download |
Recommendations for installation
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TRASPIR DOUBLE NET 270
| CODE | description | tape | H
[m]
|
L
[m]
|
A
[m²]
|
H
[ft]
|
L
[ft]
|
A
[sft]
|
pcs./pallet |
|---|---|---|---|---|---|---|---|---|---|
| T270 | TRASPIR DOUBLE NET 270 | - | 1.5 | 50 | 75 | 4' 11'' | 164 | 807 | 16 |
| TTT270 | TRASPIR DOUBLE NET 270 TT | TT | 1.5 | 50 | 75 | 4' 11'' | 164 | 807 | 16 |
Technical Data
| Property | Standard | Tested Values | USC Conversion |
|---|---|---|---|
| Mass per unit area | EN 1849-2 | 270 g/m² | 0.88 oz/ft² |
| Thickness | EN 1849-2 | 1 mm | 39 mil |
| Water vapour transmission (Sd) | EN 1931 | 0,035 m | 99.9 US perm |
| Tensile strength MD/CD | EN 12311-1 | 650 / 800 N/50mm | 74 / 91 lbf/in |
| Elongation MD/CD | EN 12311-1 | 40 / 60 % | - |
| Resistance to nail tearing MD/CD | EN 12310-1 | 750 / 550 N | 169 / 124 lbf |
| Watertightness | EN 1928 | class W1 | - |
| Resistance to temperature | - | -40 / 80 °C | -40 / 176 °F |
| Reaction to fire | EN 13501-1 | class E | - |
| Resistance to penetration of air | EN 12114 | < 0,02 m³/(m²·h·50Pa) | < 0.001 cfm/ft² at 50Pa |
| Thermal conductivity (λ) | - | 0,3 W/(m·K) | 0.17 BTU/(h·ft·°F) |
| Specific heat | - | 1800 J/(kg·K) | - |
| Density | - | ca. 260 kg/m³ | - |
| Water vapour resistance factor (μ) | - | ca. 35 | - |
| Joint strength | EN 12317-2 | > 550 / N/50mm | > 62.811619 / lb/in |
| UV stability | - | 336h (3 months) | - |
| Water column | ISO 811 | > 500 cm | > 197 in |
| Watertightness after artificial ageing | EN 1297 / EN 1928 | class W1 | - |
| Dopo invecchiamento artificiale - resistenza a trazione MD/CD | EN 1297 / EN 12311-1 | 620 / 770 N/50mm | 71 / 88 lb/in |
| Dopo invecchiamento artificiale - allungamento | EN 1297 / EN 12311-1 | 35 / 55 % | - |
| Flexibility at low temperatures | EN 1109 | -20 °C | -4 °F |
Composition
| TOP LAYER | non-woven PP fabric |
|---|---|
| REINFORCING LAYER | reinforcing PP grid |
| middle layer | PP breathable film |
| REINFORCING LAYER | reinforcing PP grid |
| BOTTOM LAYER | non-woven PP fabric |
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