On the high top feeder I run two 1 1/8 holes in the back of the feeder with screen over them also I don't run inner covers.
If the hive has too much ventilation the bees will Propolize the screen on the front of the to regulate the ventilation.
I run this setup year round without a condensation problem.
Hope this helps!
ventilation is always the issue, I have a hollow lid with 4 x 3/4 inch holes drilled in the sides, with screens, I then fill the lid with wood shavings and staple a corflute (old plastic political sign, plastic corrugated cardboard) cover to the bottom of the lid, I then cut out the corners. about 1 1/2 inches triangles. All of my hives are tilted to the front, I make the base boards that way, it will allow any condensation to trickle to the front of the hive, run down the inside front and leave through the entrance, keeping the brood nice and dry. You will always have moisture problems when you feed sugar water in the hive, the water has to go somewhere.
I can only tell you what I do in my hives I also run solid bottom boards. When you have shaving in your hive to collect moisture the moisture is still in your hive. The way I have mine it creates a updraft removing moisture from the hive. I don't have a moisture problem in any of my hives and I am currently running 35 hives expanding to over a 100 this spring.
If you go on Youtube watch Fat Bee Man videos he has a wealth of information you can gain from them.
Sometimes things don't work for everybody you have to do what you think works for you. Listen to your bees in many cases they will tell what they want.
In many ways bees are smarter than we are and sometimes they act like spoiled brats.
I told you what I do you'll have to decide what you want to do.
Remember cold don't kill bees moisture does!
I hope in some way this helps someone,
Happy Bee Keeping
Assuming the inner cover has the notch up, and to the front of the hive, and the hive is tilted a little toward the front. Won't the condensate that forms on top run to the front, out the notch, dribble down the front of the hive onto the landing board and then the ground without doing any harm?
In my hives the condensate forms under the inner cover, inside the hive.
Ten years of Beekeeping before varroa. Started again spring of 2014.
tlknghd, the moisture collecting on the under side of your inner cover is produced by the 'breathing' of the cluster. the stronger the colony, the bigger the cluster, and the more they have to produce heat to keep warm, the more the moisture rising up from the cluster.
insulating the top is your best bet. this allows the the inside walls of the hive to be colder than the 'ceiling'. the moisture will collect on the sides and run down and out of the hive.
if your bottom is open the moisture will run out there. if you close your bottom make sure the hive is tilted a little bit forward and the moisture will run out of the bottom entrance.
i've never liked the idea of quilt boards or other methods of collecting (and holding) moisture at the top. it seems to me like that would just create a cold sink. i think it's better to let the moisture run out the bottom.
fwiw, i provide upper venting by fully notching (all the way through) and screening both the front and back of the inner cover, about 1" wide and centered left and right. for insulation i fit a piece of 1/2" pink foam insulation board inside the 'frame' of the top side of the inner cover.
doing these things has eliminated finding mold on the under side of my inner covers in the spring.
A Heretics Guide to Beekeeping http://heretics-guide.atwebpages.com/