Trex RainEscape

TREX RainEscape

Trex RainEscape – Under-Deck Drainage System (Canada)

Key Takeaways

  • Create Dry Space: Transform the area under your deck into a functional, dry outdoor living room or storage area.
  • Above-the-Joist Protection: Water is diverted before it reaches your deck framing, protecting your structure from rot and moisture.
  • Ontario Weather Ready: Designed to withstand the freeze-thaw cycles and heavy precipitation common in the Canadian climate.
  • Complete System: Includes troughs, downspouts, butyl tape, and flashing for a 100% waterproof seal.

Create the Ultimate Under-Deck Living Space

Trex RainEscape is a revolutionary above-the-joist waterproofing system that keeps the area under your deck dry and usable. Whether you are envisioning a weather-protected outdoor kitchen, a cozy lounge with a TV and heaters, or simply clean and dry storage, this system ensures that rain and snow melt never interrupt your plans. Sold across Ontario and Canada, these components are the foundation of a true backyard transformation.

What Is Trex RainEscape?

Unlike "under-deck ceiling" systems that merely hide water and debris, Trex RainEscape catches water at the surface level.

  • Surface-Level Protection: It sits directly on top of your joists, shielding the wood framing from moisture.
  • Efficient Diversion: Durable troughs catch water and funnel it into downspouts that carry it safely away from your home.
  • Total Versatility: Once installed, you can finish the underside of your deck with any ceiling material (wood, vinyl, or aluminum) and even install electrical for lighting and fans.

When Should You Use Trex RainEscape?

Trex RainEscape is best installed during the construction of a new deck or a major rebuild where the deck boards have been removed.

Ideal Scenarios:

  • Second-Story Decks: Perfect for creating a patio or seating area underneath.
  • Outdoor Entertainment Hubs: Necessary for safely installing outdoor heaters, speakers, or entertainment systems under a deck.
  • Ontario Climate Context: In Canada, we face significant snow loads and frequent freeze-thaw cycles. RainEscape prevents water from pooling on top of joists, which is a leading cause of structural rot in Ontario decks.

System Components & Parts Map

Building a waterproof system requires the right combination of components. Use this map to ensure you have everything for a successful installation:

  1. Troughs: Available in 12' and 16' lengths. These are laid between joists to catch falling water.
  2. Downspouts: These funnel the water from the troughs into your gutter system.
  3. Butyl Tape: Essential for sealing the troughs to the joists and ensuring a 100% waterproof barrier.
  4. Wall Flashing: Used where the deck meets the house to prevent water from seeping behind the ledger board.
  5. Post Flashing: Pre-cut pieces designed to seal around 4x4 or 6x6 posts.
  6. Caulk & Accessories: High-quality sealants to finish corners and complex framing areas.

How Many Parts Do I Need?

Planning shouldn't be a "lottery." While every deck is unique, here is a general guide for a standard rectangular deck:

Example: 12' x 16' Deck (16" On-Center Joists)

  • Troughs: ~12-13 Troughs (depending on joist spacing)
  • Downspouts: 1 per joist bay
  • Butyl Tape: ~3-4 Rolls (allow for overlap)

Note: These are estimates for a simple layout. For multi-level decks or complex framing, we recommend a professional take-off.

Need Help Planning Your Project?

At DeckOutlet.ca, we provide the parts, but The Deck Store provides the expertise to ensure your project is a success.

Looking for more than just parts? Visit our Under-Deck Systems page at The Deck Store to see completed projects and gain inspiration for your outdoor living space.
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