Going to be starting a bathroom remodel soon. It will include porcelain tile on the floor which will installed over cement backer board (Hardie Backer). Hardie says to set the Hardie Backer into thin-set then screw down, Doing this will make it impossible to remove the floor in the future as the sub-floor will be destroyed removing the backer board. My house was build in the late 90's so the sub floor is likely installed with nails and construction adhesive.
I will not likely remove the floor in my lifetime so I should not be worried but I like to think about the next person. I am thinking that if I screw the backer board into the floor joists we should have a solid base for the tile.
Your thoughts, opinions, experience.
Thanks