WATERPROOF Unfortunately, the term “waterproof” has been thrown around so much, that it doesn’t mean what it used to. Just so there are no mistakes, when we say waterproof we mean waterproof. And, not just waterproof for a certain period of time. What if your car windshield was only waterproof for 6 months or a year? Or your roof? Would that be good enough for you? Because it isn’t good enough for us.