I'm thinking ahead to next winter and have an idea I want to ask about, I'm switching from Kenyan TBH's to the standard hives this year and thinking about building a hut out of 2 inch thick foam insulation to slip over my hives in the winter. the front one just coming down to the hive entrance leaving it open (with the reducer) and the screened bottom open. This will bee like putting a box over the hive. anyone see a problem or any advise on my thought?