Waterproof Deck Systems: When Protecting the Space Under Your Deck Makes Sense

Deck Builders Denver · Jul 30, 2026 · 3m

In this episode of Deck Builders Denver, we focus on a question that comes up often with elevated decks: when does it make sense to invest in a waterproof deck system? Many two‑story homes in the Denver area have usable space under the main deck that stays wet or icy for a good part of the year. We explain how waterproof systems can turn that area into a dry, protected zone for storage, seating, or even an under‑deck patio.

We begin by explaining the difference between basic decking and a true waterproof system. Standard decking sheds water between boards, but the space under the deck still…