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 PERM |
| Tensile strength MD/CD | EN 12311-1 | 650 / 800 N/50mm | 74 / 91 lb/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 | - |
| Thermal resistance | - | -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) | 2.08 (BTU·in)/(h·ft²·°F) |
| Specific heat | - | 1800 J/(kg·K) | - |
| Density | - | ca. 260 kg/m³ | - |
| Water vapour resistance factor (μ) | - | ca. 40 | - |
| Joint strength | EN 12317-2 | > 550 / N/50mm | > 62.811619 / lb/in |
| VOC content | - | 0 % | - |
| UV stability | EN 13859-2 | 3 months | - |
| Exposure to weather | - | 4 weeks | - |
| Water column | ISO 811 | > 500 cm | > 196.8504 in |
| After artificial ageing - watertightness | 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 |
| Driving rain test | TU Berlin | passed | - |
Specifications
Supply and installation of highly breathable membrane, type TRASPIR DOUBLE NET 270
CE marking according to : EN 13859-1
Property:
– Mass per unit area : 270
– Water vapour trasmission (Sd) (m) : 0,035
– Maximum tensile force MD/CD (N/50mm) : 650/800
– Elongation MD/CD (%) : 40/60
– Resistance to tearing MD/CD (N) : 750/550
– Watertightness (class) : classe W1
– VOC emission (COV) (%(class A+)) : 0
– Temperature resistance (°C) : -40/+80
– Reaction to fire (class) : classe E
Indicazioni di posa per: PARETE
TRASPIR DOUBLE NET 270 is laid parallel to the dock beam or the floor if laid on a wall. The second layer must be overlapped by at least 15 centimetres. Each layer must be fixed to the substrate with a mechanical fastener. (ex: HAMMER STAPLER, HAND STAPLER o PNEU STAPLER). It is also advisable to overlap the sheets by at least 30 centimetres at the butt joints. In order to achieve correct air and water sealing, we recommend the use of EASY BAND, SPEEDY BAND, FLEXI BAND, FLEXI BAND UV, SOLID BAND, PLASTER BAND, SMART BAND, FACADE BAND UV, FRONT BAND UV, FRONT BAND UV 210, DOUBLE BAND, SUPRA BAND, BUTYL BAND, OUTSIDE GLUE, FIRE SEALING, FIRE STRIPE or in the case of rough surfaces (such as rough OSB) FLEXI BAND, PRIMER SPAY, PRIMER .
Indicazioni di posa per: TETTO
TRASPIR DOUBLE NET 270 is placed parallel to the eaves line, starting from the lower edge of the roof. The second layer must be overlapped by at least 10-20 centimetres to the previous one (depending on the slope of the roof), as indicated on the layout according to UNI 11470:2013. The sheet must be applied on a continuous support with a mechanical fastening device. (ex: HAMMER STAPLER, HAND STAPLER o PNEU STAPLER). Once at the top of the roof, it is advisable for the membrane to protrude beyond the ridge line by at least 30 centimetres to ensure a perfect overlap with the strips of sheet that will overlap on the other side of the roof. It is also recommended that the sheets overlap by at least 30 cm even at the end joints. To achieve correct air and water sealing, we recommend the use of EASY BAND, SPEEDY BAND, FLEXI BAND, FLEXI BAND UV, SOLID BAND, PLASTER BAND, SMART BAND, FACADE BAND UV, FRONT BAND UV, FRONT BAND UV 210, DOUBLE BAND, SUPRA BAND, BUTYL BAND, OUTSIDE GLUE, FIRE SEALING, FIRE STRIPE.If there is an integrated double adhesive strip, it can replace the correct air and water sealing.
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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