I just moved into a home where it appears the previous owners allowed their dog urinate wherever he wanted in the family room. Upon removing the existing carpeting, I discovered OSB subfloors that have been stained black over 40% of the floor. :mad: My wife and I plan on installing new nailed/stapled down hardwood flooring. Rather than attempting to kill the odor with a pet store natural enzyme and then covering it with a shelac based paint, I would like to tear out the existing subfloor and replace it to ensure that I don't spend a couple thousand dollars on hardwood floors that end up smelling like dog urine on humid days. My plan is to tear out the existing 3/4" tongue and groove OSB that is nailed down, but after inspecting it from the basement, I discovered that is has also been glued to the floor joists. Does anyone have any suggestions for removing the existing subfloor and adhesive so that I can replace is with new OSB that will be glued and screwed down?