Elevated Trench Drain Systems

Shallow Drainage Solutions for Elevated Structures
Elevated trench drain systems are engineered specifically for structures where traditional depth excavation isn’t an option—such as parking garages, rooftop terraces, balconies, and pedestrian bridges. These systems must be shallow, lightweight, and precisely integrated with a waterproofing or sheathing membrane.
At TrenchDrainCo, we offer a curated selection of shallow trench drains that are ideal for these applications—balancing form, function, and long-term durability for elevated decks and concrete slab installations.
Why Elevated Structures Require Specialized Trench Drains
Elevated platforms present unique drainage challenges:
- Limited slab depth restricts the allowable depth of the drain body.
- Structural loading requires lightweight or fiber-reinforced materials.
- Waterproofing is critical—trench drains must interface seamlessly with sheathing membranes and surface coatings.
- Thermal movement and deflection demand flexibility and resilience in the drain material and installation method.
Traditional trench drains simply don’t work in these applications. That’s why shallow systems, combined with proper sealing details and membrane compatibility, are essential for preventing water intrusion and maintaining structural integrity.
Material Options for Elevated Trench Drain Systems
We supply elevated drainage systems in several high-performance materials:
- Fiber Reinforced Concrete (FRC): Offers durability with reduced weight; ideal for light-traffic rooftop applications and pedestrian decks.
- Polymer Concrete: Highly chemical-resistant and lightweight with precise edge tolerances for architectural finishes.
- Traditional Concrete: Best suited for elevated decks with structural support and where weight isn’t a limiting factor.
- High-Density Polyethylene (HDPE): Extremely lightweight, corrosion-resistant, and easy to install—perfect for retrofit or low-load applications.
All our systems are compatible with epoxy or membrane bonding, and available in both neutral and pre-sloped designs to meet flow and elevation requirements.
Key Benefits
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Shallow Profile:
Designed specifically for limited-depth installations.
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Waterproof Integration:
Compatible with most sheathing membranes and liquid-applied barriers.
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Corrosion & Freeze-Thaw Resistance:
Engineered to last in exposed environments.
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Quick Installation:
Lightweight sections and modular designs make these systems ideal for retrofit and new builds.
Applications
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Parking garages
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Rooftop terraces
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Balconies and elevated courtyards
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Skywalks and pedestrian bridges
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Decks over occupied space

Explore Related Solutions
If you're looking for a trench drain system designed for driveways, loading docks, or commercial-grade floors, check out our commercial trench drain systems for more robust options.

Need Help Choosing the Right System?
Whether you're working with an architect, GC, or waterproofing contractor, we can help you select the right elevated trench drain system for your project's technical and aesthetic requirements.
📞 Call us: 212-946-3798
📧 Email us: info@trenchdrainco.com
Call now or request a quote to speak with a trench drain specialist.