Keeping the Space Below Your Deck Dry: Waterproofing Elevated Decks

Deck Builders Bergen County NJ · Apr 21, 2026 · 3m

This episode of Deck Builders Bergen County NJ focuses on a part of elevated decks many homeowners do not think about until there is a problem: keeping the space below dry. If you have a walk-out basement, a lower patio, or storage under your deck, water dripping through the surface above can quickly turn into rot, stains, and structural issues. We walk through how modern waterproofing systems work and what you need to know before you build or remodel an elevated deck.

We start by explaining the difference between typical decking and a true waterproof deck system. Most standard decks, even…