My follower board became severely warped (C shaped) a day or two after installation. IT's been quite cool here (highs in the high 50's) and very rainy. Its clear that the humidity in the hive has caused one side of the follower board to swell.
Is this common? Any suggestions on how to combat this problem? It's to the point where the top bar attached to the board tilts at a 45degree angle and the bees are actually using the gap as an entrance.