Breathable Roofing Felt
In the global construction trade, the moisture protection performance of a roof directly determines the engineered lifespan of the entire project. Eastopo Breathable Roofing Felt utilize advanced 3 layer thermal bonded technology. While the top and bottom layers of high-strength polypropylene (PP) non-woven fabrics provide mechanical durability, the middle functional Polyethylene (PE) film remains the core engine. By leveraging the microscopic diameter difference between water vapor molecules and liquid water droplets, it achieves a "one way balance"-blocking external liquid water while allowing internal moisture to escape.
Eastopo understands real-world jobsite pain points. Our breathable felt features exceptional tensile strength and tear resistance, ensuring they withstand foot traffic and heavy handling during pitched roof installations. The high Water Vapor Transmission (WVT) rate effectively vents condensation trapped within timber frames or insulation layers, preventing mold and structural rot. Simultaneously, a Water Column Pressure (WCP) exceeding 2000mm provides a formidable barrier against heavy rain and snow.
Beyond standard GSM options, Eastopo supports customized UV resistance and fire-retardant ratings (Class B2/E) tailored to specific climates-from the sub-zero winters of Northern Europe to the monsoon seasons of Southeast Asia. Choosing Eastopo means opting for a factory-to-site quality commitment and a competitive pricing edge that only a direct manufacturer can provide.
Product Paramters
| Feature | Specification |
| Dimensions | Width: 1.0m / 1.5m |
| Roll Length: 50m, 100m, 150m (Customizable) | |
| Material Structure | 100% Virgin Polyproplene (PP) + Polyethylene (PE) |
| Weight: 80gsm - 220gsm (Customizable) | |
| Waterproof Performance | Hydrostatic Head: ≥ 1500mm - 3000mm |
| Description: Superior Surface Water Repellency | |
| Breathability | Water Vapor Resistance (SD Value): ≤ 0.02m – 0.05m |
| Moisture Transmission (BS 3117): ≥ 300g/m²·24h - 800g/m²·24h | |
| Physical Strength | Tensile Strength: MD ≥ 120N - 350N, CD ≥ 80N - 225N |
| Tear Strength: ≥ 25N (Trapezoid Method) | |
| Weather Resistance | UV Stability: Safe for Exposure for 6 Months |
| Temperature Range: -40°C to +80°C | |
| Safety & Eco-Friendliness | Non-Toxic, Odorless, Asbestos-Free |
| Fire resistance DIN 4102 | E |
| Installation Accessories | Specialized Breathable Waterproof Tape / Fixing Nail Washer |
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