Trex RainEscape® Trough

Direct Water Away from Your Deck for a Dry, Protected Space Below

The Trex RainEscape® Trough is a key component of the Trex RainEscape Under-Deck Drainage System. Installed between deck joists, it captures and channels rain and moisture into downspouts, keeping the space beneath your elevated deck dry. Ideal for creating a finished, functional outdoor area free from water damage, mold, and mildew.

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Product Features:

• Effective Water Management – Captures runoff and directs it toward the RainEscape downspouts

• Above-the-Joist Installation – Protects the entire substructure from moisture damage

• Durable HDPE Material – Made from high-density polyethylene for long-lasting performance

• UV and Weather Resistant – Built to withstand harsh outdoor elements

• Easy to Cut and Install – Flexible and simple to size for your deck layout

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Specifications:

• Length: 16 ft

• Width: Designed to fit 12" or 16" on-center joist spacing

• Material: High-density polyethylene (HDPE)

• Color: Black

• Installation Position: Above joists, below deck boards

• Compatibility: Works with all other Trex RainEscape components

• Specs: 20 Mil, 19-5/8”

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Installation Tips:

• Ensure joists are clean and dry before applying

• Use RainEscape Butyl Tape to seal overlaps and secure the trough in place

• Maintain a slight slope toward downspouts for proper drainage

• Staple in place every few feet for a snug, secure fit

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Complete your system by pairing the Trex RainEscape Trough with downspouts, butyl tape, caulk, and post flashing for full under-deck protection.