There is not such thing as a "hardwood laminate" floor.
There are laminate floors, which are a picture of wood or tile laminated in plastic.
There are hardwood floors. And of those there are solid wood and enginneered wood.
The engineered floors are type of plywood with a hardware finished surface.
Laminate flooring and some enegineered wood flooring is installed as a FLOATING FLOOR. You can not install backerboard over a floating floor.
And a nailed or glued floor (solid or engineered floor) is not a good substrate for the backerboard.
You need to cut the finished flooring material back.
And what is the subfloor under the finished floor? |
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