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Trex®

SKU: AMI-TR.PostFlash

Trex RainEscape® Post Flash

Trex RainEscape® Post Flash

$16.70 USD
$16.70 USD
Save Liquid error (snippets/price line 86): Computation results in '-Infinity'% Call to Order: 1-877-232-3915
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Trex RainEscape® Post Flash

Seal Around Deck Posts for Complete Water Protection

Trex RainEscape® Post Flash is a smart finishing touch for your Trex RainEscape Under-Deck Drainage System. Designed to create a watertight seal around deck posts that penetrate the system, this flexible flashing prevents water from leaking through post openings—protecting the area below from moisture, stains, and long-term damage.

Product Features:

  • Seals Post Penetrations – Prevents water intrusion where deck posts pass through the drainage system

  • Flexible, Conformable Design – Fits tightly around standard post sizes and adapts to the shape of your installation

  • Durable and Long-Lasting – Made from tough, weather-resistant material for years of protection

  • UV and Weather Resistant – Built to withstand harsh outdoor conditions without degrading

  • Clean, Professional Finish – Provides a neat appearance while adding essential protection

Specifications:

  • Fits: Standard 4" x 4" posts

  • Material: Flexible weatherproof polymer

  • Color: Black

  • Application Surface: Trough openings around vertical support posts

  • Compatibility: Designed for use with Trex RainEscape troughs and overall system

Installation Tips:

  • Slide over post before installing the decking surface

  • Apply after cutting the trough to fit around the post

  • Secure with Trex RainEscape Butyl Caulk or Tape to ensure a watertight seal

  • Use in combination with other RainEscape components for full drainage system coverage

Finish your under-deck drainage system with Trex RainEscape Post Flash to ensure every detail is sealed and protected—so your outdoor living space stays dry, clean, and long-lasting.

Shipping Information

Please call 1.877.232.3915, e-mail or message us online. We will call you to verify your order and to make payment arrangements. We also have several other trucking companies that work with us at a 72% discount which we pass onto you. Orders can be shipped direct to your home or jobsite.  We can also hold orders at your local freight terminal for customer pickup. Small orders are shipped via UPS. We also ship to European and other foreign countries on container load basis. We ship anywhere in the world...please phone or email if you have shipping questions.
Check out our complete terms of sale for more info >

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