As a leading supplier and manufacturer, Qingdao Shuangshi New Material offers high-performance synthetic felt underlayment and custom synthetic underlayment designed for superior moisture protection beneath shingles, tiles, or metal roofs. Engineered with advanced synthetic materials, our underlayments provide exceptional durability, weather resistance, and ease of installation, making them ideal for residential, commercial, and industrial roofing projects. Our customizable solutions ensure reliable protection tailored to your specific roofing needs.
Key Features of Roofing Underlayment
Our synthetic felt underlayment, crafted in our advanced custom synthetic underlayment facilities, meets ASTM D226 and D1970 standards, ensuring top-tier performance. Qingdao Shuangshi’s manufacturing expertise delivers unmatched strength and waterproofing. Key features include:
Superior Waterproofing: Forms a seamless, leak-proof barrier, protecting roofs from water damage in heavy rain or snow.
High Tear Resistance: Synthetic fibers withstand foot traffic and installation stress, outperforming traditional felt underlayments.
UV and Weather Resistance: Endures prolonged UV exposure and temperatures from -30°C to 80°C for long-term reliability.
Slip-Resistant Surface: Textured top layer enhances safety during installation, ideal for steep-slope roofs.
Lightweight Design: Easier to handle than asphalt felt, reducing labor time and costs for synthetic felt underlayment projects.
Customizable Compatibility: Custom synthetic underlayment pairs seamlessly with asphalt shingles, metal roofing, tiles, and TPO/EPDM membranes, tailored to project specifications.
Applications of Roofing Underlayment
Qingdao Shuangshi’s synthetic felt underlayment and custom synthetic underlayment excel across diverse roofing applications:
Residential Roofing: Protects homes under shingles or tiles, ensuring moisture resistance.
Commercial Projects: Provides reliable waterproofing for offices, retail centers, and warehouses.
Steep-Slope Roofs: Offers secure adhesion and slip resistance for challenging installations.
Roof Repairs: Enhances existing roofs with an additional layer of moisture protection.
Technical Specifications
Thickness: 30 mil or 40 mil (customizable)
Width: 3’ or 4’ for efficient coverage
Tensile Strength: ≥12 kN/m
Water Resistance: Meets ASTM D1970 standards
Roll Length: 50’ or 100’ (customizable)
Packaging: Rolls with protective film for easy handling
Why Choose Qingdao Shuangshi for Synthetic Felt Underlayment?
As a trusted supplier and manufacturer of custom synthetic underlayment, Qingdao Shuangshi New Material produces high-quality synthetic felt underlayment in our state-of-the-art Qingdao, China facilities, certified to ISO 9001 and ISO 14001 standards. Our advantages include:
Cost Efficiency: Factory-direct pricing reduces costs by 25-35% compared to local suppliers.
Global Accessibility: Flexible trade terms (FOB, CIF, DDP) and worldwide door-to-door delivery.
Custom Solutions: Tailored thicknesses, roll sizes, and logo printing to meet specific project needs and enhance brand visibility.
Reliable Support: Free samples, technical guidance, and warranties (5-15 years) ensure project success.