Some claim that LVP is waterproof, and some particular products may be, but installation is almost, if not equally, as important as effective installation. Contributor Brittney, unfortunately, regretted her bathroom flooring selection after her “toilet overflowed in our kid’s bathroom upstairs. We immediately got the water off the floor, and about an hour later, our ceiling in the kitchen was leaking from water seeping through the floors.” It’s important to remember there are minuscule cracks that often occur between planks, and if water gets under there or seeps through the actual board, then leaking into a downstairs ceiling may be inevitable.