Re: Taped seams created moisture buildup- hopefully removed it in time
Something you may want to try, is a 1 inch hole in the center of the foam, that is on top of the inner cover and place the Vivaldi box filled with burlap above that. Screen the hole in the inner cover so bees can't chew on the foam. The 1 inch hole acts as a "chimney" for moisture. It gets collected by the burlap and vented to exterior by Vivaldi box.
A member of our bee club has used this for past two years after having moisture problems and says it works very well.
Zone 3b. If you always do what you always did, you'll always get what you always got!