Mold on the underside of roof sheathing is also very common.
Mold in attic sheathing.
The presence of mold in your attic is often the result of poor ventilation insufficient insulation moisture from a roof leak or improper venting from your bathrooms or kitchen.
Attic feels excessively hot or stuffy attics should feel breezy if they are properly ventilated.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
Common areas of white mold growth include attic sheathing and crawlspace framing.
What are the tell tale signs of an attic mold problem.
The presence of mold inside your home even if it s in an unused place such as the attic can cause.
Causes of mold while damp and warm climates are a prime breeding ground for our fuzzy friend other conditions that bring mold include lack of ventilation and proper sheathing.
Black mold can also grow behind the walls or attic ceilings completely undetected until the occupants smell the presence or experience health problems.
There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread.
Mold on attic sheathing.
Mold species such as stachybotrys chartarum which looks like slimy growth loves attic basement bathroom and space under the sink.
The attic is truss framed with plywood sheathing.
Dark black staining on wood surfaces if the wood in your attic shows any black discoloration the problem has moved.
The roof has baffles at alternating thusses soffit and ridge vents.
This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.
When an attic is.
On the east side only there is black mold for the first 6 up the slope.
The white blown in insulation was used.
Additionally efflorescence will typically dissolve under the application of a water mist while mold growth will not.
Mold that grows on the underside of roof sheathing due to ideal mold growth conditions being present.
A trained mold inspector can readily determine if the growth structure is from white mold or efflorescence.
In the vast majority of cases the mold growth is caused by condensation.
High humidity in a space like an attic can lead to mold and a spill in a carpeted area of your home that isn t quickly taken care of can also lead to mold under the carpet.