Black Mildew In Attic

It usually appears greenish black and streaky.

Black mildew in attic.

Mold species such as stachybotrys chartarum which looks like slimy growth loves attic basement bathroom and space under the sink. What causes black mold in attic. Having one but not the other creates poor air flow allowing moisture to accumulate and mold to take hold. Prevent mildew growth in all areas of your home by ensuring that moist air is vented outside your home using exhaust.

Ideally your roof will have vents along the ridge as well as along the soffits. However there are many different types of mold so if the mold in your attic looks different that does not mean you don t have a problem or don t need to worry about it or take action. The black growth on attic sheathing and rafters consists primarily of species of cladosporium alternaria or other genera of micro fungi but rarely if ever the potentially toxic stachybotrys mold black mold because attics are not consistently wet enough to sustain this kind of mold. By far the most common cause of mold in your attic is improper ventilation.

Wrongful dischargement unfortunately some house designs leave the vents from the dryer kitchen bathroom and other. Black mold can also grow behind the walls or attic ceilings completely undetected until the occupants smell the presence or experience health problems. Paint walls and floors in your attic with mildew resistant paint to prevent mildew development. What causes black mold in attic.

If you re not sure what you re looking for here s a picture of mold in an attic. Condensation by the furnace.