Hello all, so my wife and I are in the process of doing a basement bathroom remodel. What we have is a pre-existing cement shower pan with no sides once so ever. Our big question is what is going to be our best option to make where the wall tiles meet the cement shower floor waterproof and watertight. Also we would need to have 2 curbs around the sides not against the wall. With the curbs again what would be the best to waterproof and make water tight. We really don't want to bust up any cement to make this work. Thanks in advance.