I have mold under my linoleum in my bathroom. What steps do I need to take to remove and replace it?

The toilet must be leaking moisture. The mold underneath is discoloring the lineolum and is getting progressively worse. I need to replace it, but I do not want the mold to show up again. What steps do I need to take, first, to remove the linoleum, and then to ensure that the mold will not return. I plan on laying tile when I am done. Can anyone help?


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2 thoughts on “I have mold under my linoleum in my bathroom. What steps do I need to take to remove and replace it?”

  1. To elaborate on Jeff’s answer, I recommend one-piece vinyl as well. Once you have the linoleum installed, caulk any gaps between the linoleum and the flange for the toilet mount so that water will not get into the new sub-flooring. After re-seating the toilet (using a new wax ring, of course), do NOT caulk around the base of the toilet like I have seen some people do. Why? If there’s water leaking from under the toilet, it will come out from under the toilet and you’ll know a lot earlier that you haven’t solved the problem. As for certified subflooring, I used marine-grade plywood. I had to kick down some fairly serious coin but it was worth it.

  2. remove the tile and the subfloor, replace the subfloor with a certified subflooring. Get the toilet fixed or replaced, likely the wax ring is leaking. Never caulk around the base of a toilet either. One piece vinyl is better than individual tile squares. If using ceramic tile consider using a cement backing board that is made for wet areas such as a bathroom.

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