Having decided not to save anything of our old tub, vanity and toilet I've since removed all fixtures, drywall, flooring and have installed a new exhaust fan/vent, installed new GFCI outlet and switch, removed and replaced all exterior insulation and vapor barrier, installed new water shut-off valves as there weren't any to begin with brought the floor up to a consistent level.
Everything has gone well up to this point. I've recently installed my tub drain/overflow and now I'm looking at test fitting the tub. This is where the trouble starts.
I've purchased an American Standard Marina (LINK)
acrylic tub and I've realized that all instructions and install tips that I've read over show tubs with a thin exterior flange for nailing or screwing the tub to the studs. The outer flange of this tub is 1/4" thick at the ends and 1/2" thick along the back. My trouble is that I can't decide the best way to mate the tub to the wall. At first I was planing on putting up my cement board first than install the tub followed by a surround that would meet the tub at the top of the flange leaving me an area to seal the joint with silicone. However the more I think about it I think I'm missing something.
Can someone confirm or correct my line of thinking?