Our house is two years old in april. We have had a continuous mold problem since the fall of 06. The house was purchased brand new in april of 06. Around Oct. we noticed mold growing on the ceiling in the living room, master bath, and dining room. The home builder had a mold company come out and both clean the mold on the ceiling and spray the attic. This did not take care of the problem, the mold returned in the spring i think. The builder then had the insulation company come out and reinsulate the attic thinking that the insulation had blown back. We then had the mold company come back and clean again. Come this winter the mold is back. I do not know what to do. I did clean the mold in one of the rooms, and painted with kilz just to see what would happen. now in that room (dinning room) water drips from where kilz is when outside temp is below 20. I also noticed new mold growth in spare bedroom above baseboard trim. (one spot). Any advice on the cause.