I bought a bank owned house in October and moved in to the house in January. It's a two story house and the house has an elevated ceiling (I think t's called cathedral ceiling). The ceiling had some nail pops and some cracks in the main joint. I had a person come over and have the nail pops and the cracks fixed. The bank had put on a new roof and it seems that the old roof was possibly leaking since it was in pretty bad shape before the bank had it replaced. After living in the house for about 3 months, I see that some of the nail pops are coming back out in the ceiling. Also, I see some new nail pops and some minor cracks on a different place in the ceiling. I also see nail pops coming up at the joint between the wall and the high ceiling on and front side as well as on the back side of the house. I had a roof inspector and my original house inspector come over and take a look at the house. They were not able to tell me for sure what's causing the issue. According to the home inspector, it doesn't look like a structural issue since there doesn't seem to be any damage/cracks to the foundation of the house. One thing that they pointed out that when installing the new composite roof, the installer added vents on top of the roof. Since the house originally didn't have vents on top of the roof, it had vents on the side of the attic. Those vents are still in place. So, according to him, there are too many vents and that I need to block the vents that are on the side of the house. There doesn't seem to be any molding inside the attic though. Does anyone have any suggestion around what may be causing my issue or any suggestion around where I can get the best possible help to understand the issue better and get it fixed?