Wood floors are soft and scratch easily and would require refinishing with every new tenant where a better quality LVT with at least 12 mil wearlayer AND  A SCRATCH RESISTANT  FINISH like Aluminum Oxide or one of the newer Ceramic Finishes will last longer.

It was near an old dryer vent so probably absorbed ambient moisture or it could have been a leak near the entrance of the feed through the wall.When I install new breakers &/or a new panel I apply Ox-Gard Anti-Oxidant.

Sorry for that big, orange, nitrous oxide cloud a couple years back, by the way.Always open to new ideas!

I've pressure washed, but the house has oxidation now which makes it looks faded no matter how much it's cleaned.

The Finish which most cheap LVT's don't have a a scratch resistant layer using Aluminum Oxide or Ceramic. 

Get a glue down with at least a 12mil wearlayer( I would prefer 20-22mil) and make sure it have a good scratch resistant finish such as Aluminium Oxide or Ceramic Bead.

Im a CMI, CBA, CMA, CMR , IAQ Oxidation Specalist for over 17 years, mold requires moisture over 50% Rh to sustain it, over 17% on substrate.

Your wearlayer should be at least 12mil if you plan for it to last for more than one tenant anf MUST have either an Aluminum oxide or Ceramic bead finish for scratch resistance.

Admittedly, a continuous run of aluminum wire does not present a problem but when the Al wire is subsequently connected to outlets, light switches & especially spliced to other branched circuits (buried within junction boxes), these connections can & will by the metallurgical nature of Al oxidize.

It also needs to have a scratch resistant surface like Aluminum Oxide or Ceramic Bead.