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 because attics are not consistently wet enough to sustain this kind of mold.
Black mold on attic rafters.
Mold species such as stachybotrys chartarum which looks like slimy growth loves attic basement bathroom and space under the sink black mold can also grow behind the walls or attic ceilings completely undetected until the occupants smell the presence or experience health problems.
Maintenance and prevention are far easier and cheaper than repairing and replacing.
What causes black mold in attic.
If your home is older and you are not sure of the age of your roof have a home inspection done.
The photo at page top shows white attic mold on the roof sheathing and rafters and some brown or black mold on the attic side of ceiling drywall where we pulled back insulation.
Preventing black mold in the attic.
When looking for.
Even in this case in our opinion the reasons to remove and replace roof sheathing and framing would normally be based on the condition of the roof framing and sheathing not on the.
Attic feels excessively hot or stuffy attics should feel breezy if they are properly ventilated.
Dark black staining on wood surfaces if the wood in your attic shows any black discoloration the problem has moved beyond moisture.
You have mold that should be removed.
What does attic mold look like.