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.
#TREX RAINESCAPE INSTALL#
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.
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