Painting - Humidity Issues

We are re-painting our dining room. Actually, we are painting more than that, but this is the current project. I aplied 2 coats of paint-hiding-primer on Friday (about 6 hours between coats). Then applied the 1st coat of new paint early Saturday morning. It looked great! But had a couple of small areas, where the coverage was not great. So, I applied a 2nd coat. I do not know what I was thinking!! The humidity was sky-high on Saturday, and it got worse by the time I was done painting. Granted, the 2nd coat went on well, but when I pulled the tape from the corners (we are going to have 1 wall an accent wall). I saw bubbles on the adjoining primed walls (primed the night before) as I pulled, then about half-way up the wall, the tape pulled a piece of primer from the adjoining wall and actually pulled a good section of paint that I just put down (about 2" x 8").

Obviously, the 2nd coat of primer never really adhered to the 1st. So, now I have a dilemma. I have a small section that can easily be patched, but what to do about the rest of the wall? Do I just wait for the bad results to start to appear?

On another topic. I was going to finish painting this room and was thinking of using our portable dehumdifier that drains to the sump, then put a fan in the window to try and dump the hot exhaust air (from the unit) outside. Another idea is to put a small A/C unit in the window.

Our temps have been in the upper 80's and the humidity has been around 70-80%.

Now I am also thinking that I should wait longer so that I can sand the wall where the problem is. I am thinking that I may not be able to sand the fresh paint to smooth it out.

Tape over fresh paint/primer can always be tricky and should be avoided when possible. When you must tape, use a low tac tape and remove as soon as possible.

Just because paint/primer is dry doesn't mean it's cured. Sanding/scraping the bubbled areas and patching with joint compound will probably be enough to take care of the problem.

What brand and type of paint and primer did you use?

Color hiding primer and a satin latex wall paint.

Here I thought the problems were due to humidity... Last night I put a coat of paint on 2 of the other walls in the room. I made sure and waited until the humidity was much lower and painted away. Again, taped a corner, this time, did the cut-in, rolled one section, then pulled the tape off (nice results). Anyhow, I work my way around the two wall and notice a spot that is bubbling. I stop painting and scratch it with my finger and I see an area that is showing the old paint, and some joint compound. Now, on this wall, I had patched a few spots, then primed the entire wall with color hiding primer. My guess is that the color hiding primer should not have been used over the JC. I guess that I have learned a lesson there. ALWAYS USE THE PRODUCT FOR IT'S INTENDED USE!

Othere that one spot, the rest of the wall came out nice. I hope to paint the 4th wall today, then fix the problem from last week on the weekend. Then maybe I can get the floor guy back in, as well get my molding up!

Exactly which zinnser primer did you use?