I have a wall on the north side of my house that has a gable roof running east/west. At the west end of this wall, the wall meets another wall running north with a gable roof running north/south. In the corner I have a clothes closet on the north wall of the first wall I told you about. This is my problem area. I have mould inside the closet at the base up the wall about 8, and now I have ice building up on the inside. I think that this problem is because of the two roofs meeting and making a valley that causes ice damming. Can you tell me what to do? I am disabled, so the fixes need to be easy to fix for me.