Under Deck Drainage Between Joists

Before installation prepare the components. Easily attaches to new or existing deck joists to protect your under deck outdoor space from moisture mold and mildew damage. Photo courtesy of dek drain.

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The best option is to install the system above the joists.

Under deck drainage between joists.

Easy to install with detailed instructions for your specific under deck drainage project. The anchor point to the deck frame for dryspace s extruded vinyl under deck system is a series of brackets. Adaptable to multiple sizes and shapes. Above joists system different deck drainage systems can be installed either above or below the joists.

The trex rainescape system is designed to be installed between deck joists spaced on 16 inch centers. Judging by the number of manufacturers who are now offering them under deck drainage systems have become a very popular upgrade. The under deck drainage systems can be divided into three basic categories. Fabricated from specially formulated rubber membrane material 45 mil.

These products capture water and divert it to a gutter at the deck beam or the outer band joist leaving the space below the deck dry and available to use either as outdoor living space or for storage. The trex rainescape membrane which comes in rolls is fastened loosely to the top edge of deck joists. Pre cut panels available for 12 16 and 24 framing. Azek and dryspace inc.

Ft drape between the lower edges of deck joists to form sloped water diverting troughs that resist heat wind fire and uv rays. If all this sounds like too much to jury rig you can use a manufactured system with all the parts pre cut and designed to work as a system. This will provide 100 protection of all the joists and beams from moisture penetration. Are not affiliated in any way.

Epdm rubber panels from dek drain 5 to 6 per sq. Installs to the bottom of deck joists. Decking boards are then installed over the top. Waterproof sheets that fit over the joists before the decking goes down systems that affix to furring strips below the.

Adding the gutter and a ceiling to conceal the drainage system is up to you. As with ceiling systems the spaces between the joists are exposed to the elements which your electrician needs to keep in mind. Flexible durable and long lasting. Installing an under deck drainage system can solve this problem.

Butyl tape is applied to seal all seams. Dek drain s topside system drapes strips of rubberized sheeting epdm between deck joists to direct water into a gutter at the band joist. The downspouts can be oriented to fit between joists spaced 12 or 16 inches on center.

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