black spots on insulation

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Old 11-04-09, 11:28 AM
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black spots on insulation

We have an unfinished walk-out basement. The back wall has insulation covered by clear plastic. I have noticed some black spots on the insulation. Would that be mold or something else? The basement doesn't have any leaking, but I'm not sure what the humidity level is. Thanks!

Al
 
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Old 11-04-09, 04:11 PM
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Old 11-04-09, 04:31 PM
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Thanks. So what do we do after we remove all of the plastic and insulation? Only one wall has insulation, the one that faces the back of the house and isn't underground. On the outside that wall has vinyl siding.
 
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