Started what I thought was an easy job of placing "peel and stick" tile and grout in my downstairs bathroom, but that was until I removed the quarter round at the base of the tub.
It is not all the way through. I've been under the house to check, plus I cannot poke through it with a screwdriver.
What can I do here? It is such a small area that I'm not enthusiastic about laying new subfloor.
Best Answer
Yick, we had something similar but worse. I: Cut out whatever subfloor was gone. The joists were stained and powdery looking in spots, so to prevent any mold colonies I painted those up to the edges of the remaining subfloor material with Kilz. When that was dry, I screwed in pieces of matching plywood to replace the gaps, noting that I made sure to have all edges secured over the joists - no pieces with hanging edges short of the joists. I then painted everything I replaced on the exposed subfloor with Kilz, going on the idea that if it seeped once, it could seep again someday.
(Replacing the entire floor - once I had 1/2" plywood down, replaced where needed, I went over that with 1/4", which made sure no repair seams showed through the flooring over time.)