I would like to use the one piece flooring as you suggested for a tub enclosure. Can it be installed over the 4" ceramic tile that is there? What type of glue or contact cement can be used? And finally, can it be used on the ceiling which also has the same tile.
Answer:
What I've used in the past was ordinary sheet vinyl adhesive and I've glued it to all kinds of surfaces but never to ceramic tile. I certainly can't see why it wouldn't work though. In most cases I also cover the ceiling.