You should remedy this by air sealing areas in your attic.
Mold cleanup in attic.
Use dry ice pellet gun to blast the mold from the rafters and underside of the plywood roof sheathing.
Mold in your attic is not the biggest concern.
If you have mold in the attic we recommend consulting with a mold removal specialist because.
Can lights wall drywall junctions wall framing members ductwork bathroom vents etc.
Heating ventilation and air conditioning ducts may also.
Removing attic mold yourself diy fix the moisture problems only but leave the attic mold behind professional attic mold remediation.
The best way for getting rid of mold in the attic black mold and any other mold is to remove it from the surface it s growing on or remove the contaminated surface.
Wooden beams and plywood may be affected and it can be difficult to remove all traces of mold from wooden surfaces.
To do so there are three options.
Vacuum the mold dust from the polyethylene sheeting using a vacuum equipped with hepa filter.
Mold in the attic or anywhere for that matter can be a health and safety hazard when you spot it you have to act fast.
It is caused by excessive moisture from air movement from humid air in your home to a low humid attic with lower temperatures.
Then carefully remove and discard the sheeting.