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Specifications
Breathable Pitched Roofing Underlay Membranehas good water resistance & vapor breathability, can let building breathe freely.
Breathable Pitched Roofing Underlay Membrane Roofing Waterproof Membrane Breathable Membran
Nelumbo breathable membrane, which has good water resistance and vapor breathability, e.g., prevents moisture from entering the buildings, while permits water vapor exit the building. And the breathable membrane can thus improve building durability by protecting wall sheathing and framing from moisture.
How does Nelumbo Breathable Pitched Roofing Underlay Membrane Roofing Waterproof Membrane Breathable Membrane works?
Nelumbo breathable membrane is made by two layers of non-woven fabrics and one layer of microporous polymeric membrane in the middle.
1. It has superior air resistance that helps to protect insulation from drafts, reducing energy costs.
2. It provides water resistance that helps to prevent water from entering walls, avoiding costly damage.
3. It allows moisture vapor to escape while protecting against air and bulk water instrusion.
4. It has excellent tear strength and allows 120days of UV exposure.
Breathable Pitched Roofing Underlay Membrane Roofing Waterproof Membrane Breathable Membrane data:
Roll size: 1.5m*50m
Material: 3 layers- 2 layers Eco-friendly PP non-woven fabric + 1 layer PE film
Packing: 2rolls/ctn
Technical data of Breathable Pitched Roofing Underlay Membrane Roofing Waterproof Membrane Breathable Membrane chart below:
| Item | Specific | |||
| Weight (g/m2) | 100 | 130 | 170 | |
|
Water Vapour Transmission (g/m2.24h) |
2500-3500 | 2500-3500 | 2500-3500 | |
|
Resistance to Water Penetration (mm) |
1500-3000 | 1500-3000 | 1500-3000 | |
|
Tensile Strength (N/50mm) |
CD | >140 | >150 | >170 |
| MD | >160 | >170 | >200 | |
|
Low Temperature Flexibility (°C) |
-40°C | -40°C | -40°C | |
|
UV Exposure (Months) |
4 | 4 | 4 | |
3 layers of Breathable Pitched Roofing Underlay Membrane Roofing Waterproof Membrane Breathable Membrane below:
Breathable Pitched Roofing Underlay Membrane Roofing Waterproof Membrane Breathable Membrane It provides water resistance, but allows moisture vapor to pass through.
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