Identification

• Mold in attics often appears first as mildew. Mildew's appearance can range from white and powdery growths to black spotted growths. Mold can also appear as white, black or even green fuzzy growths.
  
  

Moisture

• Moisture is the primary cause of mold in any area of the home, the attic included. Excess moisture in the atmosphere, either due to humidity or water infiltration, will nearly always result in mold growth.
  
  

Ventilation

• Without proper ventilation, excess moisture has no method of escape. Ventilating an attic space, through the use of fans, open doors or windows, or the use of a dehumidifier, can reduce the amount of moisture in the air.
  
  

Solution

• To prevent mold from growing in an attic, remove excess moisture in the air by making sure that no outside water is getting in by way of leaks or failing gutters. Remove humidity by providing ventilation.
  
  

Considerations

• Mold and mildew can destroy items such as paper, wool, cotton and other natural fibers which are often stored in attics. Attics should be inspected regularly for mold and the conditions which cause it.