I believe you should be able to use a second wax ring to make up for the additional hieght of the new floor.
: i replacing my bathroom floor...have added a new sub floor of 1/4 inch plywood and 1/2 inch cement
: backerboard....then will be adding ceramic tile, which
: leaves my closet/floor flange below floor level, how do
: i replace/extend that flange...do i remove the old one and add a new one, or is this something that i can add onto....is there a kit?