There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread.
House has mold in attic.
Dryer exhaust vents kitchen exhaust fans and bathroom exhaust fans.
Wooden beams and plywood may be affected and it can be difficult to remove all traces of mold from wooden surfaces.
This moisture feeds mold growth.
The most common cause of attic mold by far is blocked or insufficient ventilation.
If you re layering insulation atop other insulation don t use the kind that has kraft face finish i e paper or foil backing.
Insulation is often affected.
Heating ventilation and air conditioning ducts may also.
Improper exhausting of bathroom fans or dryer vents.
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.
What causes attic mold.
Blocked or insufficient ventilation.
Although mildew mold is a contributor to the musty smell that can take place in your home there are other additional causes in a home that can also help in the production of this odor in your air space.
Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements.