Small spots or speckles of mold on a surface are far less harmful than mold that covers several feet in area and has spread deep into cracks crevices and throughout insulation.
Dangers of black mold in attic.
However there are some people who may have problems from exposure to it.
Mold can lead to a variety of health problems some of which include the following.
Make sure to clean the mold properly and make your attic a dry well ventilated leak free environment to prevent mold.
Respiratory illness and or infection.
Venting bathroom or kitchen exhaust fans through the attic should be avoided.
If only around for a short period of time black mold is not dangerous to the average person.
Attic should be free from excessive heat and moisture so black mold will not grow.
Otherwise you could be directing moisture and humidity into your attic.
If this moisture problem is not corrected promptly within 24 48 hours your attic is at risk of black mold contamination.
Black mold in attic can cause many problems both in health and property.
Around exhaust vent pipes.