Adding a deck to an outdoor space can add value to a property and improve homeowners’ enjoyment of it. When it comes to an elevated deck, there is also scope to add extra value beneath its surface. Typically, the space beneath an elevated deck is unusable, but with Trex RainEscape it can become a flexible place for storage – or an additional living area.
Trex RainEscape is a unique under-deck drainage system which keeps rain, spills and snow melt from dripping through the deck boards above. This innovative system creates a dry space beneath, while also protecting the substructure from moisture damage.
How does Trex RainEscape work?
Designed for elevated decks, such as raised decks or balcony decks, Trex RainEscape is a network of troughs and downspouts installed above the joists of a deck’s substructure and below the deck boards. It captures and diverts water away from the deck, creating a dry space below.
The troughs and waterspouts are made from durable polyethylene, with all seams and joints sealed and made watertight using either RainEscape butyl caulk or RainEscape joist tape, which is a self-adhesive waterproof butyl flashing tape. This prevents water from infiltrating the deck’s structure, protecting it from moisture damage like rot or mildew, and holding screws in place longer.
When should an under-deck drainage system be considered?
Trex RainEscape is ideal for use with a balcony or upper-floor deck, or with a deck that’s raised above ground level.
Installing an under-deck drainage system as part of a balcony deck means the area below is kept completely dry and protected from the elements. The space can then be used for an entirely separate living area, with the design of the system meaning electrical cabling can be safely and discreetly run between the surface of the deck and the soffit ceiling of the outdoor space below to power lighting, ceiling fans, speakers and other facilities.
Alternatively, if you’re building a ground-floor deck that’s raised as a result of a sloping garden, installing RainEscape will provide a valuable storage area for items like garden furniture, tools or seasonal sports equipment.
How is Trex RainEscape installed?
The installation process for Trex RainEscape is straightforward, only requiring three tools: a utility knife, a staple gun and a caulking gun. Instructions are provided that include guidance for a range of builds, with videos available showing each stage of the process.
Installation starts with laying ledger and sub-ledger flashing tapes, before stapling funnel-shaped downspouts into the joist bays, making sure they are angled to drain toward the gutter. Next, the trough material is adhered directly to the flashing tape to cover all the joist tops, overlapping the downspouts to create a watertight seal. Finally, the trough material is secured with staples, ensuring a slight slope for drainage.
How long does it last?
Trex RainEscape is compatible with any type of decking material, including composite, timber or PVC, and can be installed on new decks or added to an existing deck during resurfacing before the new deck boards are fastened.
Backed by a 25-year warranty, Trex RainEscape has proven reliability which safeguards the homeowners’ investment over the long term, particularly if high-quality boards like Trex are used to build the deck itself.
Find out more about Trex RainEscape at trexrainescape.com
