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Trex rainescape deck drainage system trough install#

Ensure the troughs and downspouts are dry and clear of debris before applying tape.Finally, cover the Trex RainEscape system with deck boards.

Cover all joists and blocking with trough material, then tape.

Add outlets to the gutter every 12′ – 14′.

Since you’re creating a waterproofing membrane system, you’ll have to take some necessary precautions to not puncture the system in a way that would create a leak. Trex RainEscape is not recommended for an existing deck unless you remove the deck boards. Call a trusted deck builder if you’re not up for a DIY project. To estimate the cost of your under-deck drainage system, check out this materials estimator. Use the Trex RainEscape butyl tape to cover all the joists and seams.Įnsure the tape completely covers all seams and anywhere a screw penetrates the Trex RainEscape system.

Trex rainescape deck drainage system trough install#

Step 1: Install the Trex RainEscape Downspout It can also be helpful to have a midspan nailer on the underside of the joists to keep them straight. It covers and protects all of the wooden substructure and can be installed with a composite or wooden deck.Īre you interested in DIY home improvement? Check out this handy chart to find an over-the-joist drainage system that’s right for you! Under-Deck Drainage Installationįor DIY installation of your Trex RainEscape system, you will need: An over-the-joist deck drainage system such as Trex RainEscape provides 100% protection from the damage caused by wood repeatedly getting wet. A deck drainage system diverts water away from the joists and beams. Installing a deck drainage system during construction is the best way to waterproof under your entire deck. Watch this video to see what happens to wood with under-joist drainage systems. Over time, this is the perfect formula for your deck’s wood to rot.

The hot summer weather further cooks the trapped, waterlogged wood and accelerates the rotting process.

The only real ventilation is between the quarter-inch or less space between boards. If the ceiling panels are installed under the deck, there is no air coming to dry out the wood.

This type of system can also trap moisture.

The water hits the pan and runs out, but not before drenching the wooden joists.

The continual exposure of the wood to the water as rainwater drips through the deck and into the drainage system below weakens the structure.

As a result, when these decking joists repeatedly get wet, they will eventually start to rot.īelow-joist drainage systems cause damage and wood rot in three ways: However, because the draining occurs under the decking materials, this system allows water to drip through the boards and over the wooden joists. They catch and drain the water away through the boards using corrugated plastic or aluminum panels. Similar to the flanges, these are installed underneath the deck boards and drain the water out, providing a two-in-one drainage system and a finished ceiling. Under-Deck Ceiling SystemsĪnother solution is the under-deck ceiling system. It is also possible that they may break down over time due to improper installation, rendering the waterproofing system ineffective.

Some flanges may require trimming the deck boards to accommodate their shape. These prevent water from dripping below and can be designed to act as gutters that channel the water to the edges of the deck (contractors typically install these flanges by pounding them into the deck edges with a rubber mallet). They divert rainwater to the area below the deck.īut what if you want the space underneath to be dry? One waterproofing solution is to fill these gaps with rubber flanges. The spaces between the deck boards provide a convenient draining system for precipitation that prevents prolonged moisture exposure. Please read below to learn the best choice when it comes to keeping your deck sturdy and dry for years to come. Over time exposure to harsh weather conditions, water and temperature can cause your outdoor living space to decay and lose its shine.

To prolong the lifespan of your outdoor wood deck, you must install proper drainage.