Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
Black mold in attic sheathing.
How to treat black mold in attic.
This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.
Mold growing on the sheathing in your attic is a serious problem that shouldn t be ignored.
Prepare proper cleaning tools.
What are the tell tale signs of an attic mold problem.
When an attic is.
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.
The presence of mold inside your home even if it s in an unused place such as the attic can cause.
You need a mask gloves and goggles.
In the vast majority of cases the mold growth is caused by condensation.
Make sure to wrap.
Dark black staining on wood surfaces if the wood in your attic shows any black discoloration the problem has moved.
Attic feels excessively hot or stuffy attics should feel breezy if they are properly ventilated.
Black mold grows easily so you need to remove all objects that may make the mold grow again.
If your attic sheathing doesn t look like new construction and is visibly black or white stained like this picture you likely have a ventilation issue that needs to be addressed and mold remediated.