You are here: Home » Products » Coarse Denier Nonwoven Fabric » Waterproof Layer for Battery Compartment of New Energy Vehicles

Waterproof Layer for Battery Compartment of New Energy Vehicles

Bi-component Coarse Denier Filament Non-woven Fabric for Roof Windproof & Breathable Layers Engineered for roofing systems, this bi-component non-woven fabric (≥15 denier PP/PE/PET composite fibers) forms a high-strength breathable barrier via 3D interlacing, offering 1.5 kPa wind uplift resistance and 100–300 g/m²·24h water vapor permeability. It blocks strong winds while releasing moisture from insulation, preventing condensation and mold. With excellent weather resistance, it retains ≥95% tensile strength after 1,000 hours of UV exposure, enduring -40°C to 80°C temperature fluctuations, and its tear resistance is 30% higher than traditional spunbond fabrics. The lightweight design (80–150 g/m²) reduces roof load and enables easy installation, compatible with asphalt shingles, metal sheets, and green roofs. Compliant with GB/T 20462 roofing breathable membrane standards, it provides durable windproofing and efficient ventilation for flat, pitched, and vegetative roof systems.
Availability:
Quantity:

Product Advantage

1. Dynamic Windproof-Breathable Balance

Crafted with 3D interlaced coarse denier fibers (≥15 denier), the fabric delivers 1.5 kPa wind uplift resistance (GB/T 20462 certified) and 100–300 g/m²·24h water vapor permeability, blocking Category 12 winds while expelling moisture from insulation 25% faster than traditional membranes. This prevents condensation-induced structural decay, ideal for high-wind, humid climates.


2. Extreme Weather Resistance & Longevity

Withstands -40°C to 80°C temperature swings and retains ≥95% tensile strength after 1,000 hours of UV exposure, outlasting standard spunbond fabrics by 30% in harsh environments. Its anti-UV treatment resists surface degradation in coastal salt spray or high-altitude sunlight, ensuring a service life of 15+ years with minimal maintenance.


3. High-Strength Puncture & Tear Resistance

The dual-component structure offers 200 N/5cm longitudinal tensile strength and 80 N tear resistance (Elmendorf method), 40% higher than conventional non-wovens. This withstands construction tool impacts and debris falls, reducing installation damage risks and ensuring long-term system integrity.


4. Lightweight Design for Versatile Installation

At 80–150 g/m², it’s 60% lighter than asphalt-based windproof membranes, minimizing roof load—critical for steel-frame, timber, or retrofitted structures. Available in 1–3m widths, it supports hot-melt or mechanical fixing, boosting installation efficiency by 30% and adapting to asphalt shingles, metal roofs, and solar panel installations.


5. Eco-Compliance & Sustainable Performance

Made from 100% recyclable PP/PE/PET, it emits zero VOCs (OEKO-TEX Standard 100 compliant) and is fully recyclable at end-of-life, aligning with LEED and China’s 3-Star Green Building criteria. This provides a low-carbon solution for green roofs, vegetative systems, and environmentally conscious projects.


Technical Parameters

ParameterSpecificationTest Standard
Material CompositionDual-component PP/PE/PET composite fibers with coarse denier (≥15 denier)ISO 13934-1
Grammage80-150 g/m²(customizable for windproof and breathable requirements)ISO 9073-1
Thickness0.3-0.8mm(±5% thickness tolerance for uniform installation)ISO 5084
Wind Uplift Resistance1.5 kPa (withstands Category 12 winds, 180 km/h)GB/T20462
Water Vapor Permeability100-300 g/m²24h (adjustable via fiber density for different climate zones)ASTME96
Temperature Resistance-40℃ to 80℃ (no brittleness or deformation in extreme climates)ASTMD648
UV ResistanceRetains ≥95% tensile strength after 1,000 hours of UV exposure (QUV-A testing)ASTM G154
Tensile StrengthLongitudinal: 200 N/5cm; Transverse: 180 N/5cmISO 13934-1
Tear Resistance80 N (Elmendorf method, 40% higher than standard non-wovens)ISO 6383-2
Puncture Resistance150 N (needle penetration test, resists construction debris impact)ASTMD6241
Installation CompatibilityHot-melt adhesive, mechanical fastening (nails/screws), compatible with asphalt,metal, and green roofs
Environmental ComplianceOEKO-TEX Standard 100 (non-toxic), 100% recyclable PP/PE/PET base materialOEKO-TEX 100
Service Lite15+ years in coastal/high-UV environments, 20+ years in moderate climatesAccelerated aging tests
Roll Width1m,1.5m,2m, 3m (customizable for large-scale roofing projects)


Product Uses

Coastal Typhoon-Prone Regions

Designed for Category 12 winds (1.5 kPa wind uplift resistance), the fabric withstands 1,000 hours of salt spray testing with no corrosion. Its hydrophobic surface blocks seawater intrusion while 200–300 g/m²·24h vapor permeability expels moisture from insulation, reducing mold growth and extending roof system life by 15%+ in high-humidity coastal environments.


High-Altitude Strong Sunlight Areas

In regions with intense UV radiation (≥300W/㎡), the fabric retains ≥95% tensile strength after UV exposure, resisting embrittlement in -40°C to 80°C temperature swings. It balances windproofing and breathability, preventing condensation under asphalt shingles or metal roofs in harsh alpine climates.


Green & Vegetative Roof Systems

The 80–150 g/m² lightweight design (0.3–0.8 mm thickness) reduces load on plant layers, while 100–200 g/m²·24h vapor permeability supports root respiration. Its 150 N puncture resistance protects against root penetration, ensuring long-term integrity in eco-roof installations.


Integrated Solar Panel Roofs

Compatible with mechanical fastening for solar brackets, the fabric’s 200 N/5cm tensile strength withstands installation stress. It vents heat and moisture beneath panels, slowing backsheet aging and improving solar system efficiency, ideal for commercial and residential PV-integrated roofs.


Light-Gauge Steel & Timber Structures

At 60% lighter than traditional membranes, it minimizes roof load for weight-sensitive buildings. Hot-melt welding and 80 N tear resistance streamline installation, preventing tool damage during setup on steel-frame or wooden roof structures.


Cold-Climate Moisture Control

In -40°C environments, the non-brittle fabric allows 150–250 g/m²·24h vapor escape, preventing freeze-thaw damage to insulation. Paired with rigid foam or rock wool, it forms a triple-protection system: windproof, breathable, and thermal-efficient.


Commercial & Industrial Roofs

Wide rolls (up to 3m) suit large-span roofs, reducing seam points with mechanical fastening. A 15+ year service life cuts maintenance costs in high-dust, humid industrial settings, blocking pollutants while maintaining optimal attic ventilation.


FAQ

Q: How does this fabric perform in high-wind areas?

A: It withstands 1.5 kPa wind uplift (Category 12 winds, 180 km/h), blocking wind-driven rain while allowing 100–300 g/m²·24h vapor release to prevent insulation moisture buildup (GB/T 20462 certified).


Q: Is it suitable for extreme climates like deserts or polar regions?

A: Yes, it operates from -40°C to 80°C and retains ≥95% strength after 1,000 hours of UV exposure, ideal for arid, high-UV, or subzero environments with minimal degradation.


Q: Can it be used with different roof materials like metal or solar panels?

A: Absolutely. It’s compatible with asphalt shingles, metal sheets, and PV systems, supporting hot-melt adhesive or mechanical fastening (nails/screws) for versatile installation.


Q: Does this fabric meet environmental standards for green buildings?

A: Yes, it’s 100% recyclable PP/PE/PET and OEKO-TEX Standard 100 certified (no harmful substances), compliant with LEED, China 3-Star Green Building, and global sustainable roofing criteria.


Q: Can the grammage or thickness be customized for specific projects?

A: Yes, we offer 80–150 g/m² grammage and 0.3–0.8 mm thickness options, adjustable to balance windproofing, breathability, and load requirements for residential, commercial, or industrial roofs.

Previous: 
Next: 
Eco-Innovation Without Compromise 
– For a Planet-Positive Future

Quick Links

Contact information
Tel: +86-17761995399
Add: LEEBO Environmental Protection MaterialsCo., Ltd., Yizheng City, Yangzhou City, Jiangsu Province

Product Category

Copryright  2025 LEEBO Environmental Protection Materials Co., Ltd. All Rights Reserved I Sitemap I Privacy Policy