Replacement of insulation may be necessary if this is the case.
Mold on attic insulation.
If you re layering insulation atop other insulation don t use the kind that has kraft face finish i e paper or foil backing.
Photos of mold growth on attic insulation elevated moisture content found in the insulation.
Blocked or insufficient ventilation.
Dryer exhaust vents kitchen exhaust fans and bathroom exhaust fans.
What causes attic mold.
Close up of mold growth on white fiberglass insulation.
Improper exhausting of bathroom fans or dryer vents.
Unfortunately improper installation or choosing the wrong kind of insulation causes moisture from the lower levels of the home to rise and get trapped in the attic.
This is unusual and typically only occurs when an attic suffers from.
Dbs can prevent attic mold using proper air sealing ventilation and insulation to limit the amount of warm air that s escaping into your attic.
Moisture enters your attic from the living space below and causes all kinds of problems including mold and wood rot.
This is typically done with an ulv fogger and sprayed throughout the attic area.
The most common cause of attic mold by far is blocked or insufficient ventilation.
This would be considered light mold growth.
If the mold growth in the attic is pronounced you may see it presenting atop attic insulation.
If you have mold in your attic air leakage and poor ventilation are likely to blame.
Moisture enters your attic from the living space below and causes all kinds of problems including mold and wood rot.
This moisture feeds mold growth.