A properly balanced attic ventilation system will help to:

• Remove excess heat and moisture to protect your roof from premature deterioration
  
  
• Help prevent roof rot in your attic or roof deck
  
  
• Minimize peeling and extend the life of exterior and interior paint
  
  
• Limit the growth of harmful mold
  
  
• Safeguard your attic possessions against mildew damage
  
  
• Guard against ice damming in harsh winter climates
  
  
• Possibly reduce excessive heating and air conditioning costs