Once cement board is fixed to wall. I will use fibre tape but what filler can I use? Will tile adhesive do?
Always follow manufacturers instructions but yes, tile ady is the usual recommendation. Feather out using a trowel and your ready for tiling
Thank you! Is there a certain type of adhesive I need for cement board or can I use the same I'll use for walls? Cement based bagged adhesive?
No special requirements when using cement board. No priming needed, just make sure fixed firmly to whatever's behind them, plenty of support, screwed and joints taped and wiped over with tile ady Boards can sometimes be rather dusty so just a brush over to remove Goes without saying, use good quality adhesives and grouts, even more so if using in wet areas Usually powdered bagged adhesive recommended when using large format tiles but looks like you've got this covered already Enjoy the project