Brand new house, whats growing, mold, mildew? Its all on the northwest side (less sunny). Any possibilty that a room humidifier is to blame? Anyone see any other possible casues. Proper vents and ridge vent for ventilation. Thanks Click to Enlarge 53.24 KB Click to Enlarge 51.04 KB Click to Enlarge 42.96 KB Click to Enlarge 52.01 KB Click to Enlarge 46.81 KB Click to Enlarge 39.02 KB