Found something under flooring ... mold or?

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Old 08-04-16, 02:52 PM
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Found something under flooring ... mold or?

Hey there so pulling up laminate flooring in upper bedroom. Keep in mind the quarter round had been glued to the floor and the base boards. Under the under lay matting there appeared to be like coffee grinds or something and there was a nasty odor ... as I start pulling up the matting though I noticed a fine black dust settling on the tops of the base boards. Can someone tell me if this is mold and how dangerous it is ???? Will attach a picture as soon as I can figure out how ....
 
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Old 08-04-16, 03:02 PM
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Here are pics ...

This is what the dust looked like when it settled on the top of the base boards .... didn't even notice it in the air until it started collecting there.



These are the big chunks clinging to the under matting ....





Had started to shop vac the big bits when I noticed the fine dust settling and coating stuff ...

 
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Old 08-04-16, 03:42 PM
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If that's fine black powder..... it wouldn't be mold.
It sounds more like the decomposition of an underlayment pad.

Isn't the padding you picked up black ?
 
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Old 08-04-16, 03:45 PM
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Nope, padding I picked up is white. The second picture shows the bigger chunks of what I thought were coffee grinds attached to the white padding. The fine black stuff didn't even appear until I had pulled up the first strip of padding.
 
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Old 08-04-16, 04:01 PM
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I don't see any black under the carpet. That dust almost looks like it came from the vacuum.
 
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Old 08-04-16, 04:08 PM
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Well thanks for the feedback, I really appreciate it, I was freaked out for a bit, maybe you are right, maybe something was ejected from the shop vac when I turned it on ...
 
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Old 08-05-16, 04:51 AM
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I agree with PJ, it doesn't look like mold and the location sounds like it would not likely be a place for any to grow. What is below that room, is it a source of moisture?

Check the filter of the shop vac as I have had them split and do similar. If vac was used to remove water at some point the filter may have been removed.

Is it possible the stuff you are seeing was simply left there when the floor was installed.

Bud
 
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