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.
Description
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
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Technical data sheets
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Recommendations for installation
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 | - |
| After artificial ageing - Tensile strength MD/CD | EN 1297 / EN 12311-1 | 620 / 770 N/50mm | 71 / 88 lb/in |
| After artificial ageing - elongation | 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 |
Specifications
TRASPIR DOUBLE NET 270
Supply and installation of highly breathable membrane, Type TRASPIR DOUBLE NET 270.
Composition
From top layer to bottom layer:
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non-woven PP fabric
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reinforcing PP grid;
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PP breathable film;
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reinforcing PP grid;
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non-woven PP fabric.
Properties
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Mass per unit area [g/m²]: 270
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Thickness [mm]: 1
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Water vapour transmission (Sd)[m]: 0,035
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Tensile strength MD/CD [N/50 mm]: 650/800
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Elongation MD/CD [%]: 40/60
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Resistance to nail tearing MD/CD [N]: 750/550
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Watertightness: class W1 (EN 1928)
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Reaction to fire: class E (EN 13501-1)
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Resistance to temperature [C°]: -40/80
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UV stability: 336h (3 months)
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VOC [%]: not applicable
Standards and certifications
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CE marked in accordance with EN 13859-1
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LCA
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AUS 4200.1 Class 4
Description
The application surface must be dry, free of dust and grease. Surface elements must be removed so that the membrane is not damaged during application.
The membrane includes a reinforcement mesh that provides high resistance to mechanical stresses caused by staples, nails, or wear when walked on.
Recommended use: direct UV protection is guaranteed. On roof, installation is permitted on both the internal and external sides of the building envelope; on walls, installation is permitted only on the internal side of the building envelope.
Installation: Unroll the membrane. If the version without double-sided adhesive strips is used, sealing must be carried out using tape such as: FLEXY BAND, FLEXY BAND UV, SPEEDY BAND, or EASY BAND.
Ensure that the overlap between the membranes is at least 15 cm to achieve an optimal seal.
To ensure correct and professional installation, the use of a nail sealing point is required.
Further details regarding installation can be found in the specific instructions provided by the supplier.
