Hey all! My house was built in the winter of 2015 and had many drywall screw pops after the first year. The builder sent a guy over who just tightened the screws and skim coated them, most came back. I've gotten quite proficient in fixing them myself by now lol. My problem is in the master bath. I had several in the ceiling and fixed them as I always do. I remove the offending screw, put a new screw about an inch in ether side off the hole, fill with joint compound and sand. When I take a long hot shower the screw repairs show through the paint, I've seen it referred to as ghosting. These repairs were primed with Kilz Premium and followed with two coats of flat laytex ceiling paint. I've had the insulation above the area checked and batt insulation added over the blown insulation. I've replaced the pos exhaust fan with a Broan 150cfm (50cfm over sized) model and vented it out the roof. The problem persists. The last thing I did was to prime the area with one coat of Zinsser Bullseye 123 primer and follow with two top coats of ceiling paint. 24 hours drying time was allowed between each coat of paint. It's a bit better after the last primer/paint combo but still there. Again, you can only notice the screw repairs after a long hot shower. When the room isn't used for a shower everything looks fine. In the hall bath I don't have the problem and can empty a 50 gallon water heater if I choose. I'm out of ideas, any help is greatly appreciated!