Attic Fan Mold

Moisture food and warmth.

Attic fan mold.

Causes of mold in your attic. The most common cause of attic mold by far is blocked or insufficient ventilation of the attic space. In fact it often times take only 12 hours for certain types of insulation to start growing mold. This is why mold resistant insulationis so important in an attic.

Related to 3 above this practice can pump warm moist air into the attic where it can be trapped and begin the cycle of mold growth. This can be easily addressed by increasing your ventilation via your bathroom fans. Mold located on ductwork on roof decking trusses or just about anywhere in the attic is simply a problem of excessive moisture. 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.

If you eliminate just one of these elements mold will starve and die. 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. No air sealing an attic will reduce the likelihood of moisture entering the attic. If you find black spots in your attic and you are thinking it could be harmful black mold you do not necessarily need to panic.

Attic mold loves wet insulation. The only potential downside of air sealing is the increased humidity inside the home. This dramatically lowers the odds of mold growth. Attics usually have a passive ventilation system in which outside air comes in through the soffit eave vents at the bottom warms up in the attic and escapes through the can or ridge vents at the top because hot air rises.

Dark black staining on wood surfaces in the attic.