Group of five people having a conversation inside a modern living room with large windows overlooking an outdoor landscape at sunset. The room has a ceiling fan, candles on the coffee table, and surrounded by white curtains and wooden accents.

AquaPassage™ Deck Drainage System

USPTO Patent Pending.

Transform the area under your deck into a dry, comfortable living space and protect it from the elements.

Pre-formed, pre-sloped solid metal channels install in half the time, eliminating guesswork and costly callbacks.

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Two people sitting by a fireplace in a bright living room with large windows and curtains, greenery outside, and modern furniture.

Transform Your Living Area

Unlock the hidden potential beneath your deck with the easy to install AquaPassage™ system. Our system gives you the confidence to create a true outdoor oasis complete with premium fixtures, sophisticated lighting, electrical wiring, and finishes.

No more worrying about weather damage. Install your dream outdoor entertainment area, elegant furniture, ambient lighting, and luxury accessories without hesitation. Your backyard deserves to be extraordinary.

Diagram of AquaPassage deck drainage channels stacked side by side.

Excellence Meets Design

AquaPassage™ channels are pre‑formed and pre‑sloped for reliable drainage angles. No complicated installations, improper tape application, or uneven trough slopes. Available in a variety of metals to meet your project needs: top-grade aluminum, copper, stainless steel, or galvanized steel. Our product delivers uncompromising worry‑free protection, season after season.

Download our installation guide

Cross-section of a building roof showing wooden rafters, insulation material, and a weatherproof outer layer.

Our pre‑formed, pre‑sloped non-synthetic metal channels create a reliable barrier, keeping the space beneath your deck completely dry while safeguarding your investment from moisture. This isn't just drainage, it's carefree preservation.

Water is channeled away through AquaPassage™ channels using the industry's best known material for longevity and severe temperature fluctuations. AquaPassage™ sits between the joists and the deck boards, providing 100% protection for your joists and wooden framing, extending your deck's structural integrity.

Precision-Engineered Protection

  • Five people sitting outdoors around a fire pit on a porch with a wooden ceiling, surrounded by trees with fall foliage and a wooden fence.
  • A group of five people sitting and standing in a modern living room with large windows and a view of outdoors at sunset. They are engaged in conversation, with some holding drinks and one reading a book. There are candles on the coffee table, and the room features comfortable seating, plants, and curtains.
  • Modern living room with large glass sliding doors, wooden ceiling, and green outdoor plants. Four people are inside, sitting on a sectional sofa and standing near the door, engaged in conversation.
  • People relaxing on patio underneath a balcony in a backyard garden.
  • Patio with outdoor chairs and a covered outdoor living space with people inside
  • People relaxing on outdoor patio with modern wooden furniture, large potted plants, and a shaded roof, in a backyard setting.
  • A modern indoor living room with large glass windows showing a garden outside. Two people sit in armchairs near a fireplace, engaged in conversation. The room has a brick floor, wooden ceiling, and sheer curtains.

The Hidden Cost of Warranties

Let's be honest

Most product warranties sound reassuring until you actually need them. If you install a drainage system made from vinyl, polyethylene, or any of the synthetic materials on today's market, and it becomes brittle and cracks, or starts to leak, or the adhesive fails or there's a material defect.
Here's what typically happens: You'll need to prove the defect is due to manufacturing, ship the defective part back for inspection, and wait for approval. Even if everything checks out and the manufacturer accepts fault, they'll only refund the cost of the material itself.

The real expense?

Hiring a contractor to remove all your decking, rip out the defective system, install the replacement, and reinstall your deck boards. This process often causes additional problems: broken deck boards, compromised seals, and weeks of disruption to your outdoor space.

Why Our Warranty Is Different

Yes, AquaPassage™ does come with a warranty. But more importantly, it's engineered so you'll never need to use it.

We designed AquaPassage™ to withstand severe weather fluctuations using solid material over vinyl and rubber. Our product won't brittle, crack, rust, or tear. It's pre‑formed and pre‑sloped, eliminating water pooling, and installation complexity. Once installed, it's truly worry‑free.

FAQs

What is one key feature that sets your product apart?

1

Out of the many features, the one that sets AquaPassage™ apart is simplicity, you simply drop the channels between the joists and all the guesswork is eliminated. Longevity is a close second, this product doesn’t age or brittle. Rodents will not chew through it either.

How about the below-deck drainage systems?

2

Drainage systems that are installed below the joists tend to trap moisture between the deck and the drains. The moisture creates mold, wood rot, promotes joist warping, and creates a habitat for insects that feed on mold such as ants and termites.

Why does your product cost more than others?

3

The cost of quality metals is a key reason. Unlike cheaper membrane systems, our product is equivalent to installing a metal roof between your joists and your decking. We don’t hand you rolls of membrane material, we ship AquaPassage™ already pre-formed to fit standard joist separation distances (12”, 14”, 16”, as well as custom widths).

How long have you been in business

4

Our company is relatively new, but the material we use is the same robust material used in metal roofing. AquaPassage™ is a carefully engineered and crafted roof for you deck that sits between your joists and your decking.

Is AquaPassage™ easy to install?

5

Yes absolutely, our system is the easiest to install and is DIY friendly. It simply sits on top of your joists. AquaPassage™ is already formed and sloped, there are little to no dealings with failure prone tasks. Download our installation guide here.

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No pressure or persistent marketing

info@mishlawi.com

+1 (571) 376-0958

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