Waterproof Membrane

Bitumen Waterproof Membrane — Roof & Structural Waterproofing Solution

Bitumen Waterproof Membrane is a premium waterproofing material based on modified bitumen, designed to protect roofs, terraces, foundations, basements and other surfaces from water infiltration and moisture damage. Huiwang’s bitumen membranes offer reliable waterproofing performance for residential, commercial and industrial construction projects worldwide.

• Excellent water- and vapor-proof performance: Carefully formulated with bitumen and polymer modifiers (SBS / APP), the membrane provides a continuous, impermeable layer that prevents rain, groundwater or vapor from penetrating structures. :contentReference[oaicite:1]{index=1}
• Strong, flexible and durable: Reinforced with fiberglass or polyester carrier, it delivers high tensile strength, tear resistance, and dimensional stability — suitable for flat roofs, terraces, underground walls, basements, bridges and other demanding environments. :contentReference[oaicite:2]{index=2}
• Resistant to weather, chemicals and aging: Our bitumen membrane remains stable and functional under UV exposure, heat, cold, moisture and chemical aggressions — a reliable waterproof barrier over years. :contentReference[oaicite:3]{index=3}
• Adaptable & versatile application: Available in rolls of standard sizes (e.g. 1 m × 8–10 m), various thicknesses and surface finishes (mineral granules, sand, PE/PET/aluminum film), suitable for roofs, balconies, terraces, basements, tunnels, foundations and more. :contentReference[oaicite:4]{index=4}
• Suitable for new build or renovation: Can be applied over prepared substrate by torch-on or cold-adhesive methods; ideal for new constructions, waterproof upgrades or refurbishment projects. :contentReference[oaicite:5]{index=5}

If you need a high-performance waterproofing solution for roof waterproofing, terrace sealing, basement protection or foundation waterproofing, please tell us your application type, required thickness, roll size, surface finish and quantity. We will recommend the best bitumen membrane type (APP / SBS / fiber-reinforced) to match your project needs and offer you a competitive quotation.

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Hybrid Waterproof Roofing Underlayment for Shingle and Metal Roofs

Hybrid waterproof roofing underlayment is an 8-layer laminated roofing underlayment that combines asphalt, synthetic fabric, non-woven reinforcement and HDPE film. It acts as a vital secondary water barrier under shingles or metal roofing, helping protect the roof deck and building structure from wind-driven rain, snow and ice.

• Strong and leak-resistant: Passed 110 mph wind test and 4-hour water spray test with cap and roofing nails, providing reliable protection under severe weather.
• High tensile strength & tear resistance: Engineered with reinforced fibers to deliver excellent strength in both machine and cross directions, reducing the risk of tearing during installation.
• Wrinkle-free & walkable surface: Lays flat and stays flat, with a textured, anti-skid surface to offer a safer walking surface for roofers.
• Lightweight & efficient coverage: Hybrid construction keeps weight low while offering over 450 sq.ft coverage per roll, making it easier to carry, handle and install.
• High temperature & UV resistance: Designed to withstand high roof temperatures (up to 260 °F) and short-term UV exposure, suitable as a temporary dry-in layer during construction.
• Meets ASTM standards: Complies with ASTM D1970 nail-sealing requirements for roofing underlayments, enhancing long-term watertight performance around fasteners.

If you need hybrid waterproof roofing underlayment for shingle or metal roofs, please tell us your roof type, slope, climate, required standards, roll size and quantity. Our team will recommend a suitable hybrid underlayment specification and provide a competitive quotation for your roofing projects.

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