Waterproof Vinyl Plank Flooring 101: How to Keep Bathrooms and Kitchens Dry in 2025
Why Waterproof Vinyl Plank Flooring Works in Wet Zones
Bathrooms splash. Kitchens spill. However, waterproof vinyl plank flooring doesn’t flinch. Its dense core structure repels water, while tightly sealed seams prevent seepage. Furthermore, many styles feature attached mold-resistant underlayment, offering an extra layer of protection.
In addition, unlike hardwood or traditional laminate, vinyl planks won’t swell or warp when wet. This makes them ideal for families, rental units, and high-humidity environments.
Step-by-Step Tips for Full Waterproofing
Even the best vinyl planks need proper installation for true water protection. Here’s how to make your floors bathroom- and kitchen-ready:
- Install a 6-mil vapor barrier over any concrete subfloor. This is especially important in ground-level bathrooms or slab foundations.
- Run planks beneath vanities and appliances. This ensures continuous coverage. As a result, there are fewer gaps for water to slip through.
- Use silicone caulk around the perimeter. Most importantly, this seals expansion gaps, keeping mop water from reaching subfloors.
- Overlap flooring edges with trim. In addition, cover transitions with waterproof thresholds for a sleek, sealed look.
Shop SPC Planks That Soak and Survive
At Oscar Surfaces, we specialize in 100% waterproof SPC vinyl plank flooring. These Stone Plastic Composite planks come in a variety of coastal and modern finishes. Moreover, they’re perfect for spa-style bathrooms or chef-worthy kitchens.
We don’t just tell you they're waterproof—we show you. Visit our Seattle showroom to watch live flood tests in our demo sink. You'll see vinyl planks soaked in water, yet still completely intact.
Furthermore, our design staff will walk you through each waterproofing step. From subfloor prep to caulk selection, we make sure your flooring project is done right the first time.
