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Dark stains in attic


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I saw these stains at several areas in an attic. They are not from condensation. No apparent odor to them and I was not in the mood to taste them. I'm thinking it is asphalt or something leaching out of the moisture barrier on the insulation. I think I have seen this in the past, but not often. Any thoughts?

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I saw these stains at several areas in an attic. They are not from condensation. No apparent odor to them and I was not in the mood to taste them. I'm thinking it is asphalt or something leaching out of the moisture barrier on the insulation. I think I have seen this in the past, but not often. Any thoughts?

Click to Enlarge
tn_2015126184024_P1266629%20(512x341).jpg

30.1 KB

Click to Enlarge
tn_2015126184046_P1266627%20(512x341).jpg

36.69 KB

Looks like you've hit the nail on the head.

Marc

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