Dexerdry between Vault deck boards


Dexerdry installed in decking


Dexerdry Profile



Easily create dry zones under raised decks.

Deckorators® Dexerdry® offers a revolutionary deck weatherproofing solution. It is a simple, easy-to-install system that enables deck builders and homeowners to create dry zones under raised decks and eliminate water issues from ground-level decks. Dexerdry makes it possible to add extra outdoor living space and storage areas, with the confidence that they will not be affected by precipitation from the above deck structure. Decks built with Dexerdry require 1/8” slope per foot of framing; pitched away from home, to allow for proper runoff.

The proprietary polymer extrusion is uniquely crafted to fit snugly within the slotted-edges of Deckorators composite decking, creating a water-tight seal between boards. Available in black 12-, 16- and 20-foot lengths.

Style Tip

Dexerdy installed in between Deckorators slotted-edge deck boards to prevent water draining to the level below.

Product Literature

Installation Instructions

  • Deckorators Dexerdry® Installation [pdf - 496 KB] - English - French


Yes, Deckorators decking carries a Class C fire rating, which is the same class as natural wood.

No. While Deckorators decking does provide superior surface integrity and strength, it is not suitable for structural applications.

While no formal testing has been done, we have not seen or heard of any ill effects from standard pool chemicals.