Which underlayment should I use to tile a shower alcove?

[darktower007]

dt1.jpg (339.26 KiB) Viewed 1464 times

Hey everyone,
My first post! I just ripped out my old tub and I'm putting in a soaker tub soon.

My questions are:
Should I use Hardie board or cement board?
Put green drywall up-- then cement board and tape seams then tile?

I tend to over do things in fear of mold or water ingress so any help would be appreciated!
(Sorry the pic stinks I snapped one last week real quick)


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[kingnewport]

If if you want to go crazy then tank it. Or just use cement board and tile it

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