Wooden decks need waterproofing to prevent rot, warping, and mold caused by moisture exposure. Waterproofing extends a deck's lifespan, protects its structure, and maintains its appearance over time.

Many people have natural wood decks, opting not to stain them. But whether they're stained or natural, do you need to worry about waterproofing? We turned to some home reno experts to find out whether ...