Don't glue to the joists, you might need to get the boards back up one day!!
Would help with deflection of the joists though
Wherever you are tiling you need to put down WBP ply. Normal floorboards will deflect independently of one another and the grout and maybe the tiles will soon crack
Would help with deflection of the joists though
Wherever you are tiling you need to put down WBP ply. Normal floorboards will deflect independently of one another and the grout and maybe the tiles will soon crack

