For you commercial guys, I'm sure you are using migratory covers. But how do you deal with all the other problems?
Thing like Moisture, pests at the bottom entrance like mice.
I'm trying to figure out a cover that i can use, buy, build that helps me address these problems.
I thought about plywood for covers But I'm betting no one does it.
I could use some shims on a migratory cover and go without insulation to address the moisture but letting it drain down a side and also get the ventilation i need As well.
If it were big enough i could use it as an upper entrance too. I like to get multi purpose use from a single thing,you know?
Ever have mouse problems at the lower entrance? Couldn't imagine mouse guarding thousands of hives!