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4

From what you've told us, it sounds like you are trying a number of good ideas to help mitigate the smell and lingering off-gassing but maybe not optimally. I actually would advise against using bowls of water or vinegar and adding unnecessary moisture to the air. You actually want to remove moisture from the air (air conditioners //air dehumidifiers do ...


1

I probably wouldn't worry about the mold. Even if it is mold once you put your new floor on top of it (depending on floor type) the mold is embedded and won't cause problems. Mold is almost everywhere in small quantities. I'd expect once your flooring goes down that this would be equivalent or a smaller issues than the mold that likely coats the inside of ...


4

I would work from the top down, leaving the floor for the end to prevent damage to the floor grout. It should not be a problem standing and working on the ungrouted floor, just make sure the thin-set is cured. Cover it with cardboard or some old carpet or something.


0

None of this is a good idea. Better to seal the entire crawl space water tight with very low vapor permeance. If possible insulate the crawl space as well (not the floor joists). This is usually cheaper than insulation for the joists. Then go ahead and allow a small amount of building AC into the crawl. This resolves all the issues and the sealing would be ...


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I am going to submit this as an answer but it's half question, we'll see what comments this gets. It looks like you could remove the joist hanger, cut another 1/2" to 3/4" in that notch, and use a 2x6 joist hanger. I am not sure whether that would fly - the 2x6 attachment to the beam would have to be sufficient to bear the weight. I am not clear what ...


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