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Black Mold in attic

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I am looking at a house in the North East. The inspector identified some mold on the roof decking plywood on the North face. I read all your posts and understand why that face. One thing that puzzles me is the reason.

The only thing we saw was that a bathroom fan vent flex pipe was torn before it was exhausted outside. The house also has one of those big exhaust fans in the attic that circulate are through the home.

Do u think it is a combination of this fan, lack to attic ventilation ( which I did not pay attention to) I should ask the inspector and that torn vent duct? The seller is going to spend money and remediate the mold. Is there anything else I should ask them to do other than remediation and fixing that duct?
asked in Attic Area by kailashv (120 points)
edited by darekrudy
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1 Answer

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Hi Kailashv,

Since after going through my posts you know that there might be several reasons for the mold presence I’m not sure if I can add anything to it. Bathroom fan and a whole house fan are huge sources of warm air so that torn exhaust duct should be repaired, whole house fan louvers or top of the fan insulated for the cold season.
Those are obvious (and the mold) and you can ask for them to be corrected. Anything else, unless it will show on the inspection report is usually difficult to negotiate. If the inspector stated in his report that there are missing some attic vents, attic’s floor insulation, or anything else that might have direct impact on that area and be responsible for mold growth, you can try to negotiate those items with the home owner as well.
In order to determine if an attic is properly ventilated you need to do some calculations, measurements, sometimes “investigate” a little more than the home inspector is permitted do. So, if necessary, ventilation part improvement (if needed) might have to be carried out when the property becomes yours.
Just click "comment" below if you have more questions.
answered by darekrudy (21,730 points)