Replacing the ceiling in the shower

June 6/7: we were finally ready to replace the ceiling in the shower. It still had the thin ply that we had put up throughout the whole bus, and with the moisture of us using the shower daily it was starting to go moldy *yuck*. We walked around Bunnings and Mitre 10 for a while trying to decide what to replace it with. We settled on a sheet of thin galvanized steel. 

It was a fairly straightforward job, cut out and remove the ply, measure and cut the steel to fit, slide it into place, screw, silicone, and let dry. Looks great!