@ Cindi,
I do not know!
However, I have 2 hives. last winter they both comprised of a solid bottom board, 2 deep boxes, inner cover, & tin plated telescoping cover; plus I used entrance feeders. One hive got through winter without any problems at all. The other hive had condensation percolating down through the cluster and dripping out the bottom opening. This also led to moderate green mold stain on the wooden ware.
This winter both hives have a Screened bottom board, 2 deep boxes, hive-top feeder (for now), inner cover, vent box (3.5 inch super with 9 screened holes in it), & tin plated telescoping cover. The problem-free hive from last winter is doing well. The hive that had condensation problems last winter is already showing that green mold stain. I believe it has enough ventilation to prevent moisture problems but something is going on.
I wonder what genetics has to do with it. As some lines of bees have different hygienic habits might different lines have better moisture management habits?