Moisture management is critical for protecting structural elements such as foundations, basements, underground parking garages, and tunnels, which are constructed below ground grade level. While a concrete structure is considered economical and offers sufficient durability for construction projects, reinforced building frames made from steel have a higher tensile strength than concrete. The permeable nature of concrete to water poses threats of structural decay and mold infestations.
At Huafeng Waterproof Materials Co., Ltd., we manufacture waterproofing products tailored to defend your construction projects against underground water vulnerabilities. To service diverse underground application needs, our portfolio that includes bitumen membranes and liquid-applied coatings offers customized protective solutions.
Why Below-Grade Waterproofing Is Essential
Buried structures encounter groundwater on their own along with surface water and soil saturated with moisture. If no waterproofing has been performed during the construction phase, water will intrude through:
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Cracks or surface defects in concrete
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Improperly sealed joints
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Capillary pores in unsealed materials
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Poor site drainage or wet backfill
In cold weather conditions, moisture trapped within the concrete can expand upon freezing and contract repeatedly resulting in cracks forming due to repeated cycles of freeze-thaw. Corrosive chemical composure such as salty terrains alongside acidic soils destroys both steel reinforcements and concrete as well.
Huafeng’s Below-Grade Waterproofing Solutions
We offer a full range of waterproofing materials ideal for below-ground concrete protection. Key products include:
1. SBS/APP Modified Bitumen Waterproof Membrane
Ideal for: Foundations, slabs, retaining walls
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Flexible and highly durable
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Excellent resistance to water, heat, and UV radiation
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Suitable for both hot and cold applied methods
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Ensures strong bonding and long-term protection
2. Self-Adhesive Bitumen Waterproof Membrane & Tape
Ideal for: Easy-installation blindside walls, footings, balconies
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Cold-applied, peel-and-stick design for fast and safe installation
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Excellent adhesion to concrete, metal, or wood substrates
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Provides a continuous, seamless moisture barrier
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Flexible in low temperatures and resists aging
3. TPO Waterproof Membrane
Ideal for: Large horizontal slabs, green roofs, and tunnels
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Thermoplastic polyolefin (TPO) offers high chemical and UV resistance
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Weldable seams for 100% watertight joints
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Lightweight and easy to handle
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Recyclable and eco-friendly
4. Polymer Polyethylene/Polypropylene Fiber Waterproof Membrane
Ideal for: Vertical walls, tunnels, or areas with chemical exposure
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Enhanced chemical resistance
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Excellent tensile strength and elongation
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Can adapt to irregular surfaces
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Resilient to soil pressure and aggressive ground conditions
5. Waterproof Coatings and Liquid-Applied Systems
Ideal for: Complex shapes, footings, balconies, and tight spaces
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Easy application by brush, roller, or spray
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Seamless and continuous waterproof layer
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Suitable for damp substrates
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Compatible with reinforcement mesh for additional durability
Application Methods: Pre-Applied & Post-Applied
Our membranes and coatings can be used in both pre-applied (before concrete pour) and post-applied (after concrete is cured) systems:
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Positive-side waterproofing: Applied on the exterior surface facing water—prevents moisture from entering the structure.
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Negative-side waterproofing: Applied from the inside—used when external access is limited.
At Huafeng, we help you choose the right system based on construction phase, accessibility, environmental conditions, and budget.
Build with Confidence
Backed by years of industry experience and ISO-certified quality control, Huafeng Waterproof Materials Co., Ltd. delivers products that meet the highest standards in performance and durability. Whether you’re constructing a high-rise basement or a private underground garage, our waterproofing systems ensure long-lasting protection from moisture damage, chemical attack, and freeze-thaw cycling.
Contact us today to learn more about how our waterproofing solutions can protect your next below-grade project. Let Huafeng help you build stronger from the ground up.
For more information or to inquire about our waterproofing solutions and waterproof floor paint products, feel free to get in touch with us. We’re here to help!
- Phone: +86 138 6365 6701
- Email: Huafengwaterproof@gmail.com
- WhatsApp: +86 138 6365 6701
We look forward to assisting you with all your waterproofing needs!
