During the Energy Audit in this Caroline County home, Attic Moisture problems were identified. Air Leaks in the home can cause high humidity in the attic. When the humidity enters the attic, the warm air hits the cold roof deck and condensates on the roofing nails. Water forms on the nails and begins to drip on the insulation. The rusting nails give the insulation the pink dots indicating a house with excessive air leaks and inadequate insulation. If the roof has snow in the wintertime, this can cause ice damming and other roof damage.