I am following instructions from my black and decker bathroom remodelling book to install an alcove bath and it i recommends an alcove bath with a "tiling flange" .... It seems the best way to install this type of tub in terms of keeping water away from the floor. Does anyone know where I can get a tub with a tile flange? Or would you deem this unecessary and install cement board down to the top of the tub and use plastic strips and sillicone? Cheers.