Blend Hardiboard with Drywall
If you're planning on finishing the other side of the wall eventually, why not go ahead and hang it now and attach the Hardie board to it rather than the other way?? You could probably use a waterproof membrane and eliminate the Hardie. I'm not a tile man, so I'm not positive on that. Yes, the Hardie could be skimmed and painted, but it will always look like a patch if not done properly. Wouldn't want that in the middle of my wall if it wasn't necessary.....
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