Can someone tell me what has happened to the plywood? this is every where in the attic. It is not mold its like a black ink. I am stumped
Thanks
Troy Farmer
Presidential Inspections LLC
Chapter President Southern Idaho
PO Box 2144
Eagle, Idaho 83616
208-573-5300
http://www.presidentialinspection.com
http://info@presidentialinspection.com
Posting a picture would help if you have one.
Marcel 
Thanks I realize I put the wrong pic up so I had to delete it and then repost (patience)
IMHO Looks to me like a manufatcuring defect. They use a black paint/ink for labeling. It looks like a bad nozzle or a leaking hose. Not a defect in the OSB. GP manufactures this just down the street.
I have seen this too. Its more of a pigment stain in my opinion and not mould related.
I could totally see an inexperienced inspector saying this was mold and scaring the living day lights out of the client. Literally this was everywhere. The buyers were there and said “oh my god thats allot of mold”
Troy Farmer
Presidential Inspections LLC
Chapter President Southern Idaho
PO Box 2144
Eagle, Idaho 83616
208-573-5300
http://www.presidentialinspection.com
http://info@presidentialinspection.com
Interesting pattern from the wood fibers too.
[quote=tfarmer]
The buyers were there and said “oh my god thats allot of mold”[
the minute I hear this from a client I DO NOT try and calm their media driven fears…reason being I don’t know from the pic or when I’m onsite what may be present unless sampling is done which I don’t endorse. But I do note unusual stains, spots, discolorations…and allow them to choose their poison…with their realtor
the black spots may just be black spots/labeling paint… or it could be the ever harmful man eating crap thats in the news and whets the legal eagle’s appetite](“http://”)
Most likely someone splatter something at the worksite when it was in a stacked uncovered pile.
Cleaning a foundation form oil sprayer and it went on the sheets.
Nothing alarming to me and would not even note it.
Marcel 
Yeah I agree Marcel nothing to note here. I will say again I have never seen this much of it.
It is literally on every single sheet in the attic.
Troy Farmer
Presidential Inspections LLC
Chapter President Southern Idaho
PO Box 2144
Eagle, Idaho 83616
208-573-5300
http://www.presidentialinspection.com
http://info@presidentialinspection.com
If it is on every sheet, then obviously it was stained by some ink machine doing the stamping at the factory.
Looks like stain splatter from ink.
Note it as a stain unknown.
Marcel